Journal articles: 'Internal combustion engine design'

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Hameed, Md, Chova Deekshith, and Gorge Bhanu Prasad Chalamala Teja. "Design and Analysis of Crankshaft for Internal Combustion Engine." International Journal of Trend in Scientific Research and Development Volume-3, Issue-3 (April 30, 2019): 1671–75. http://dx.doi.org/10.31142/ijtsrd23531.

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Aliemeke, B. N. G., and M. H. Oladeinde. "Design of 0.67hp gasoline generator pistons." Nigerian Journal of Technology 39, no. 3 (September 16, 2020): 839–43. http://dx.doi.org/10.4314/njt.v39i3.25.

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Piston is an important internal combustion engine component that works with other engine components to withstand severe stresses and high temperature that are generated in the combustion chambers. Pistons are subjected to a very high mechanical and thermal load which results from extreme pressure cycles and huge forces of inertia caused by extremely high acceleration during the reciprocating motion. The 0.67hp generator piston designed had the values of parameters to be: 51.00mm Piston stroke; 48.85mm piston bore diameter; 3.66kw brake power; 4.87kw indicated power; 11.63Nm engine torque; 3.22mm piston thickness and 9.44cm3 clearance volume. The piston parameter values calculated were found to be in accordance with the recommended range of values in the design and operating data for internal combustion engines. Keywords: Piston design, machine parameters and internal combustion engines.

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Verhelst, S., S. Verstraeten, and R. Sierens. "A comprehensive overview of hydrogen engine design features." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 221, no. 8 (August 1, 2007): 911–20. http://dx.doi.org/10.1243/09544070jauto141.

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Realizing decreased CO2 emissions from the transport sector will be possible in the near future when substituting (part of) the currently used hydrocarbon-fuelled internal combustion engines (ICEs) with hydrogen-fuelled ICEs. Hydrogen-fuelled ICEs have advanced to such a stage that, from the engine point of view, there are no major obstacles to doing this. The present paper indicates the advantages of hydrogen as a fuel for spark ignition (SI) internal combustion engines. It also shows how the hydrogen engine has matured. An extensive overview is given of the literature on experimental studies of abnormal combustion phenomena, mixture formation techniques, and load control strategies for hydrogen-fuelled engines. The Transport Technology research group of the Department of Flow, Heat and Combustion Mechanics at Ghent University has been working on the development and optimization of hydrogen engines for 15 years. An overview of the most important experimental results is presented with special focus on the most recent findings. The article concludes with a list of engine design features of dedicated hydrogen SI engines.

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Zhu, Jiang, and Ping Yuan Xi. "Intelligent Design of Internal Combustion Engine in Hybrid Genetic Algorithm." Applied Mechanics and Materials 26-28 (June 2010): 186–89. http://dx.doi.org/10.4028/www.scientific.net/amm.26-28.186.

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The basic parameters of internal combustion engines reflect the working performance and quality of the internal combustion engine. Therefore it is of great significance to design the operating parameters of vehicle engine by design optimization method. In this paper, hybrid genetic algorithm is adopted to optimize operating parameters of vehicle engine, so that optimization process was simplified and the global optimal solution is ensured reliably. Being satisfied with the heating loading, mechanical loading and the conditions of gas mixture of engine and boundary constraints, the optimization mathematical model is created which is to minimize the heating surface area of engine. Considering the problem of low efficiency and local optimum caused by traditional optimal methods, the hybrid Genetic Algorithm are adopted to solve the optimization model. So that the optimization process is simplified and global optimum is acquired reliably.

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Papetti, F., S. Golini, M. Maggiore, S. Succi, P. Gaillard, and J. M. Perez. "Internal combustion engine design on IBM platforms." IBM Systems Journal 31, no. 4 (1992): 774–87. http://dx.doi.org/10.1147/sj.314.0774.

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Petrov, L., O. Lysy, V. Nikishin, and I. Kishyanus. "MODERNIZATION ELEMENTS RESEARCH OF CYLINDER PISTON GROUP OF INTERNAL COMBUSTION ENGINEANNOTATION." Collection of scientific works of Odesa Military Academy 1, no. 12 (December 27, 2019): 133–40. http://dx.doi.org/10.37129/2313-7509.2019.12.1.133-140.

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Actuality. Meaning of efficiency coefficient of internal combustion engine fully depends on type and construction. Common world practice of automobile construction is directed on increasing of quality of indicators of usage of internal combustion engine, which is linked to directions of increasing efficiency. Leading overseas firms that “dictate” the engineering direction of the design improvement of internal combustion engines in connection with the improvement of the technology of processing fuel into mechanical work in the engine use various technological opportunities in conjunction with the design developments in the cylindrical piston group. That’s why modernization elements research of cylinder piston group is relevant. Goal. Research possible ways to increase efficiency internal combustion engine by modernization of cylinder piston group due to the scientific work plan. Task. Design measures for internal combustion engine modernization for increasing of quality of its usage. Research methodology. Due to methodology [2] we performed theoretical calculations of efficiency of real engine and efficiency of engine which cylinder piston group was upgraded. While we defied indicating efficiency of patrol engine ZMZ-406 we used auxiliary equation of B. Stechkin. We performed theoretical calculations of functional dependence of efficiency because of working body parameters changes simultaneously.

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Marudhappan, Raja, Chandrasekhar Udayagiri, and Koni Hemachandra Reddy. "Combustion chamber design and reaction modeling for aero turbo-shaft engine." Aircraft Engineering and Aerospace Technology 91, no. 1 (January 7, 2018): 94–111. http://dx.doi.org/10.1108/aeat-10-2017-0217.

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Purpose The purpose of this paper is to formulate a structured approach to design an annular diffusion flame combustion chamber for use in the development of a 1,400 kW range aero turbo shaft engine. The purpose is extended to perform numerical combustion modeling by solving transient Favre Averaged Navier Stokes equations using realizable two equation k-e turbulence model and Discrete Ordinate radiation model. The presumed shape β-Probability Density Function (β-PDF) is used for turbulence chemistry interaction. The experiments are conducted on the real engine to validate the combustion chamber performance. Design/methodology/approach The combustor geometry is designed using the reference area method and semi-empirical correlations. The three dimensional combustor model is made using a commercial software. The numerical modeling of the combustion process is performed by following Eulerian approach. The functional testing of combustor was conducted to evaluate the performance. Findings The results obtained by the numerical modeling provide a detailed understanding of the combustor internal flow dynamics. The transient flame structures and streamline plots are presented. The velocity profiles obtained at different locations along the combustor by numerical modeling mostly go in-line with the previously published research works. The combustor exit temperature obtained by numerical modeling and experiment are found to be within the acceptable limit. These results form the basis of understanding the design procedure and opens-up avenues for further developments. Research limitations/implications Internal flow and combustion dynamics obtained from numerical simulation are not experimented owing to non-availability of adequate research facilities. Practical implications This study contributes toward the understanding of basic procedures and firsthand experience in the design aspects of combustors for aero-engine applications. This work also highlights one of the efficient, faster and economical aero gas turbine annular diffusion flame combustion chamber design and development. Originality/value The main novelty in this work is the incorporation of scoops in the dilution zone of the numerical model of combustion chamber to augment the effectiveness of cooling of combustion products to obtain the desired combustor exit temperature. The use of polyhedral cells for computational domain discretization in combustion modeling for aero engine application helps in achieving faster convergence and reliable predictions. The methodology and procedures presented in this work provide a basic understanding of the design aspects to the beginners working in the gas turbine combustors particularly meant for turbo shaft engines applications.

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Park, Hyung-Woo, Sang-Hwi Jee, and Myung-Jin Bae. "Virtual-Engine Sound Design through Internal-Combustion Engine Acoustics Analysis." Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology 6, no. 11 (November 30, 2016): 649–56. http://dx.doi.org/10.14257/ajmahs.2016.11.43.

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Hirin, І. V., and V. Yu Tyshchenko. "Comparative analysis of safety design for electric vehicle and internal combustion engine cars." Jornal of Kryvyi Rih National University, no. 51 (2020): 57–62. http://dx.doi.org/10.31721/2306-5451-2020-1-51-57-62.

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Delprete, Cristiana, Fabio Pregno, and Carlo Rosso. "Internal Combustion Engine Design: a Practical Computational Methodology." SAE International Journal of Engines 2, no. 1 (April 20, 2009): 263–70. http://dx.doi.org/10.4271/2009-01-0477.

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OHTA, Kazuhide, Rei ENOKIZONO, Kouki YAMASHITA, and Masashi SHUDO. "Low noise structural design for internal combustion engine." Proceedings of the Dynamics & Design Conference 2016 (2016): 326. http://dx.doi.org/10.1299/jsmedmc.2016.326.

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Truong, Thanh Hai, and Van Huong Dong. "An Overview Study of Camless Combustion Engines." European Journal of Engineering Research and Science 4, no. 9 (September 15, 2019): 41–45. http://dx.doi.org/10.24018/ejers.2019.4.9.1511.

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The internal combustion engine (ICE) finds its place in the market with latest design modifications in various components to improve efficiency, economy and overall performance. However, one component has remained unchanged in the internal combustion engine development i.e., the camshaft, has been the primary means of controlling the valve actuation and timing, and therefore, influencing the overall performance of the vehicle. Camless technology is capturing the future of internal combustion engines. It has been known to man that if valves could be controlled independently in an Internal Combustion Engine then there would be benefits like increased power, reduced emissions and increased fuel economy. In the camless technology valve motion is operated by valve actuators of electro-mechanical and electro-hydraulic type. In this paper we compare camless valve operation with conventional valve operation and we deal with the valve actuating mechanisms of camless engine by considering the electromechanical and electrohydraulic actuators as the important types of actuating valves in camless engines.

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Akpobi, John A., and P. Oboh. "Internal Combustion Engines: A Computerized Design Approach." Advanced Materials Research 18-19 (June 2007): 423–33. http://dx.doi.org/10.4028/www.scientific.net/amr.18-19.423.

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This paper describes computer-aided-design software which accurately and efficiently designs internal combustion engine (I.C.) parts with the aid of Microsoft Visual Basic Object - oriented programming language. In addition to numerically outputting solutions (design parameters), the software also provides graphical solutions which facilitates easy visualization of trends in the variation of the solutions with important parameters. We then illustrate its accuracy and efficiency with some benchmark examples.

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Зезюлин, Denis Zezyulin, Макаров, Дорохин, Sergey Dorokhin, Клубничкин, Evgeniy Klubnichkin, Клубничкин, and Vladislav Klubnichkin. "CREATING ENERGY-EFFICIENT INTERNAL COMBUSTION ENGINES." Alternative energy sources in the transport-technological complex: problems and prospects of rational use of 3, no. 1 (March 16, 2016): 17–20. http://dx.doi.org/10.12737/18834.

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The paper presents various versions of the energy efficient designs of internal combustion engines operating on liquid hydrocarbon fuels. In the present designs of engines uses a nano material to pass into the combustion chamber for the combustible mixture only pure oxygen, with nitrogen being passed that will significantly improve thermal process in the engine.

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Thompson, Bradley, and Hwan-Sik Yoon. "Internal Combustion Engine Modeling Framework in Simulink: Gas Dynamics Modeling." Modelling and Simulation in Engineering 2020 (September 3, 2020): 1–16. http://dx.doi.org/10.1155/2020/6787408.

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With advancements in computer-aided design, simulation of internal combustion engines has become a vital tool for product development and design innovation. Among the simulation software packages currently available, MATLAB/Simulink is widely used for automotive system simulations, but does not contain a comprehensive engine modeling toolbox. To leverage MATLAB/Simulink’s capabilities, a Simulink-based 1D flow engine modeling framework has been developed. The framework allows engine component blocks to be connected in a physically representative manner in the Simulink environment, reducing model build time. Each component block, derived from physical laws, interacts with other blocks according to block connection. In this Part 1 of series papers, a comprehensive gas dynamics model is presented and integrated in the engine modeling framework based on MATLAB/Simulink. Then, the gas dynamics model is validated with commercial engine simulation software by conducting a simple 1D flow simulation.

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Tang, San Li. "Design of Variable Cylinders Internal Combustion Engine with Energy Recovery Systems." Applied Mechanics and Materials 536-537 (April 2014): 1374–77. http://dx.doi.org/10.4028/www.scientific.net/amm.536-537.1374.

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Variable cylinders internal combustion engine works with variable number of cylinders. For gasoline engines, the fuel consumption rate rises rapidly with the decline of shaft power when operating at low load. If we reduce the number of cylinders but keep a constant power, each cylinder has more load and then works with low fuel consumption. At the same time, the spare cylinder can be used as an air compressor to recycle the energy lost in deceleration, braking or idle state. Pressed air is the carrier of recycled energy. Experiments show the fuel saving function similar to small-engine cars and energy recovery similar to expensive hybrid cars.

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Miyano, T., and M. Hubbard. "Internal Combustion Engine Intake-Manifold Aspiration Dynamics." Journal of Dynamic Systems, Measurement, and Control 112, no. 4 (December 1, 1990): 596–603. http://dx.doi.org/10.1115/1.2896184.

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A model is developed for simulating and predicting the dynamics of intake-manifolds for automotive internal combustion engines. A thermodynamic control volume approach and bond graphs are used to derive mass and energy conservation equations. Simulation outputs include time histories of pressure, temperature, mass flow, energy flow, heat flow and overall volumetric efficiency. Cylinder pressure when the intake valve closes is intensively examined because it determines the volumetric efficiency. Increases in volumetric efficiency result from increases in pressure caused by dynamic effects. Volumetric efficiency versus rpm is used to evaluate the dynamic effects of certain intake-manifold configurations. Major design parameters are the length of the intake manifold pipe, diameter of the intake manifold pipe and length of the pipe upstream of the throttle valve. Changing manifold parameters can yield improvements in volumetric efficiency at certain engine speeds but can also cause deterioration at other speeds. Shortening the length of the upstream pipe moves the volumetric efficiency peaks to higher engine speeds.

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McClelland, M. J., and A. J. Smith. "The Application of Computer Aided Design to Engine Design and Analysis." Proceedings of the Institution of Mechanical Engineers, Part B: Management and engineering manufacture 200, no. 2 (May 1986): 115–22. http://dx.doi.org/10.1243/pime_proc_1986_200_059_02.

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Ricardo Consulting Engineers are retained by major engine and vehicle manufacturers worldwide to design and develop internal combustion engines. The paper describes how Ricardo utilize their McAuto computer aided design (CAD) system at all the. stages of design and analysis, particularly through the exploitation of parametric design programs. Considerable benefits are being achieved from the closer integration of design and analysis.

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Wagner, Robert M. "Engines of the Future." Mechanical Engineering 137, no. 12 (December 1, 2015): 30–35. http://dx.doi.org/10.1115/1.2015-dec-1.

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This article elaborates the advancement in internal combustion engine technology and explains why internal combustion engines will continue to be integral to the transportation of people and goods for the foreseeable future. The internal combustion engine has seen a remarkable evolution over the past century. Before 1970, the evolution of engine design was driven by quest for performance and increase in octane in the fuel supply. Since then, however, the imperative was the need to meet new emissions and fuel economy regulations. Some game-changing advances in automotive sector in recent years are improvements in engine technologies, sensors, and onboard computing power. This combination of technologies will enable unprecedented control of the combustion process, which in turn will enable real-world implementations of low-temperature combustion and other advanced strategies as well as improved robustness and fuel flexibility. In future, new engine concepts will also blend the best characteristics of both engine types to push the boundaries of efficiency while meeting stringent emissions regulations worldwide.

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McAllister, Charles D., and Timothy W. Simpson. "Multidisciplinary Robust Design Optimization of an Internal Combustion Engine." Journal of Mechanical Design 125, no. 1 (March 1, 2003): 124–30. http://dx.doi.org/10.1115/1.1543978.

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In this paper, we introduce a multidisciplinary robust design optimization formulation to evaluate uncertainty encountered in the design process. The formulation is a combination of the bi-level Collaborative Optimization framework and the multiobjective approach of the compromise Decision Support Problem. To demonstrate the proposed framework, the design of a combustion chamber of an internal combustion engine containing two subsystem analyses is presented. The results indicate that the proposed Collaborative Optimization framework for multidisciplinary robust design optimization effectively attains solutions that are robust to variations in design variables and environmental conditions.

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Chidambaram, Kannan, and Tamilporai Packirisamy. "Smart ceramic materials for homogeneous combustion in internal combustion engines: A review." Thermal Science 13, no. 3 (2009): 153–63. http://dx.doi.org/10.2298/tsci0903153c.

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The advantages of using ceramics in advanced heat engines include increased fuel efficiency due to higher engine operating temperatures, more compact designs with lower capacity cooling system. Future internal combustion engines will be characterized by near zero emission level along with low specific fuel consumption. Homogenous combustion which realized inside the engine cylinder has the potential of providing near zero emission level with better fuel economy. However, the accomplishment of homogeneous combustion depends on the air flow structure inside the combustion chamber, fuel injection conditions and turbulence as well as ignition conditions. Various methods and procedures are being adopted to establish the homogeneous combustion inside the engine cylinder. In recent days, porous ceramic materials are being introduced inside the combustion chamber to achieve the homogeneous combustion. This paper investigates the desirable structures, types, and properties of such porous ceramic materials and their positive influence on the combustion process.

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Lee, Peter, and Boris Zhmud. "Low Friction Powertrains: Current Advances in Lubricants and Coatings." Lubricants 9, no. 8 (July 27, 2021): 74. http://dx.doi.org/10.3390/lubricants9080074.

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Improving fuel economy and reducing emissions is nowadays more important than ever. Apart from powertrain electrification, automotive manufacturers have constantly been seeking to improve the efficiency of the internal combustion engine. Downsizing and boosting have become common practice in the internal combustion engine (ICE) design. Increased power density and torque output of modern boosted engines, in combination with the introduction of automatic stop-start systems and ultralow viscosity lubricants tends to stress the engine beyond the limits foreseen in the classical design. This leads to wear problems. Each engine component comes with a unique landscape of competing manufacturing technologies, among which advanced surface finishing and coating methods play an important role. This presentation provides an overview of different industrial trends related thereto. The role of lubricant on the engine tribology is studied for different engine designs. The importance of in-design “pairing” of low-viscosity motor oils with the engine characteristics is highlighted filling the gap in the understanding of complex interactions between the crankcase lubricant and engine mechanics.

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Kim, Yong Wha, Giorgio Rizzoni, and Yue-Yun Wang. "Design of An IC Engine Torque Estimator Using Unknown Input Observer." Journal of Dynamic Systems, Measurement, and Control 121, no. 3 (September 1, 1999): 487–95. http://dx.doi.org/10.1115/1.2802500.

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The torque produced by each combustion in an engine is one of the most important indices tied to internal combustion engine performance. In this paper, an approach is investigated to estimate engine torque. Instead of employing expensive and delicate combustion pressure sensors to directly measure indicated pressure in each cylinder, unknown input observers are exploited to estimate cylinder indicated torque using one or more low-cost measurements of crankshaft angular position. Necessary and sufficient conditions for the existence of such torque estimators for multi-cylinder engines are presented in the paper; these include the number of angular position sensors required and their suggested placement. Model reduction issues and the number of measurements required to obtain an acceptable estimate are also considered. The approach is applied to a six-cylinder industrial diesel engine.

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Qiu, Li Jun, and Su Ying Xu. "The Turbocharger Exhaust Gas Regulator Design and Analysis." Applied Mechanics and Materials 644-650 (September 2014): 485–88. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.485.

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In order to adapt to the needs of internal combustion engine speed variation of the turbocharger. Using waste gas regulator control exhaust gas inlet device. The effect of exhaust gas regulator is for adjusting the gas flow velocity and direction. When the internal combustion engine running at low speed raising the impeller speed. Exhaust gas regulator and axial moving blades rotating blades of two kinds of structure. The axial moving blade structure is changing the way nozzle ring opening work. Rotating blade structure is working on changing the way of blade Angle. Exhaust gas to adjust the turbocharger is a control of internal combustion engine air pressurization value of the speed changes.

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Sevryugina, N. S., and A. S. Apatenko. "Research of influence of thermal loadings on reliability of gas-diesel engines of transport and technological machines." Power and Autonomous equipment 2, no. 3 (October 30, 2019): 121–28. http://dx.doi.org/10.32464/2618-8716-2019-2-3-121-128.

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Introduction: the factors determining the development trends of the machine-building industry on the example of modernization of the internal combustion engine are considered. The evaluation of the effectiveness of cooperation between manufacturers and the scientific potential of leading scientists in the development of designs of gas-diesel engines. The requirement of time of increase of ecology of internal combustion engines is proved, the reasons braking mass introduction of gas-diesel engines for transport and technological cars are revealed. The parameter of influence on the thermal load of the piston group in gaseous fuel is allocated. The estimation of constructive perfection of development of system of cooling of the piston of the engine is given. The effects of increased temperature on individual parts of the piston in the form of scrapes, chips, causing failure of the internal combustion engine as a whole are shown. The influence of engine oil quality on the engine operation is revealed. It is proposed to Supplement the design of the internal combustion engine with an oil level control device, developed an algorite and a software product for calculating the residual life of the engine oil on key parameters, with the establishment of the term of their replacement.Methods: the study is based on the analysis of the works of leading domestic and foreign scientists in the field of improving the design of power equipment. The theoretical and methodological basis of the study was the system approach, methods of mathematical analysis, reliability theory, analytical and statistical processing of results.Results and discussion: the theoretical justification for the increased thermal load of piston in a gas-diesel engine, justifies the addition of the construction device control engine oil level and consideration of the resource and replacement intervals for the parameters of the actual physical and chemical condition, using the database presented in the software product.Conclusion: operation of gas-diesel engines requires from the operator more strict control over the temperature regime of the engine, the condition of the engine oil and the efficiency of the engine oil, the proposed solutions will allow to assess the quality of the engine oil in real time and to carry out its replacement according to the actual condition, which will ensure.

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Zhao, Shu Guo, Ke Li, and Zhi Xian Gao. "Design the Piston of Internal Combustion Engine by Solidworks." Advanced Materials Research 749 (August 2013): 546–49. http://dx.doi.org/10.4028/www.scientific.net/amr.749.546.

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In recent years, digital simulation technology has been developing rapidly. Virtual piston is established by Solidworks easily. As is well-known that virtual piston can simulate the product all kinds of chatacter in the real environment. The results of simulation will be used to optimize piston design, in order to shorten the cycle, reduce the cost and improve the quality of products.

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Иншаков, Aleksandr Inshakov, Байков, Dmitriy Baykov, Десяев, and Sergey Desyaev. "STAND FOR RUNNING AND TESTING OF LOW POWER MOBILE FARM MACHINERY ENGINES." Bulletin Samara State Agricultural Academy 1, no. 2 (May 5, 2016): 51–53. http://dx.doi.org/10.12737/18699.

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The purpose of research is to improve the quality of production and repair internal low-power mobile farm combustion engines. To achieve this goal it was suggested to carry out running and testing the engines of small tools and equipment in specialized economical braking stands. The design of such stand, consisting of internal combustion engine, connected crank shaft with asynchronous electric machine with wound rotor, connected to the three-phase network, and matrix converter frequency included in the three-phase electrical network and consisting of nine bidirectional transistor switches, which receive signals space-vector control with automatic control system connected with the test equipment on the basis of a personal computer on which the signals from the sensors mounted on the internal combustion engine is also coming. This stand design for running and testing of internal combustion engines of mobile low power farm machinery is technically easy to manufacture and cost-effective to use. In addition, the design feature of the proposed technical solution is characterized by high energy efficiency and reliability, small dimensions and weight parameters, and wide range of speed control asynchronous machine with wound rotor.

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Gritsenko, Aleksandr V., Grigoriy N. Salimonenko, and Maksim V. Nazarov. "Design of a Method for Test Diagnostics of an Internal Combustion Engine Based on the Analysis of the Exhaust Gas Composition." Elektrotekhnologii i elektrooborudovanie v APK 67, no. 1 (March 28, 2020): 104–10. http://dx.doi.org/10.22314/2658-4859-2020-67-1-104-110.

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The introduction of methods for timely diagnostics of internal combustion engines allows maintaining the environmental indicators of the car fleet at the highest level. (Research purpose) The research purpose is in increasing the reliability of diagnostics of internal combustion engines by using data obtained by selective sampling of exhaust gases. (Materials and methods) Informational, mathematical and experimental research methods, including methods for statistical processing of results and analysis of data obtained during experiments were used during the study. (Results and discussion) The main systems that affect the environmental performance of internal combustion engines has been identified: the fuel supply system, the ignition system and the exhaust gas neutralization system. The article describes a generalized mathematical model for calculating the characteristics of exhaust gases. Authors conducted operational tests on 35 internal combustion engines with justification of their number according to standard methods. The actual value of diagnostic parameters was processed into relative percentages for drawing a nomogram. A zero value has been set for the reference state of the elements specified by the manufacturer. (Conclusions) It was found that the dominant number of failures accounted for internal combustion engines, in detail: the ignition system produces 15-25 percent of failures, the power system produces 30-44 percent, the exhaust system produces 10-15 percent. It was found that for unambiguous identification of any combination of factors, it is necessary to have output values of at least three evaluation criteria. It was found that the most sensitive parameters for evaluating the technical condition of the three systems are: changes in the engine crankshaft speed, the parameters of exhaust gas toxicity, CO, CO2, CH, O2 when providing test modes (operation of the internal combustion engine on 1 cylinder at 20 and 40 percent of the throttle opening). The article describes designed a gasoline engine loader for the implementation of diagnostic modes and control of diagnostic parameters, that allows to create operating loads with an accuracy of 0.1 percent.

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Zhao, Yan Hui, Sheng Hui Peng, and Hong Li. "Application of CAE Technology in the Simulation Design of Internal Combustion Engine Piston." Advanced Materials Research 1092-1093 (March 2015): 483–86. http://dx.doi.org/10.4028/www.scientific.net/amr.1092-1093.483.

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In recent years, the computer software and technology and the rapid development of finite element theory promote the internal combustion engine dynamic analysis process, greatly improving the application of the internal combustion engine complex parts of the finite element analysis of the efficiency of the precision and reliability of.CAE technology in engine design in the field of eventually allow designers to design modern engine with high performance, low emission, low fuel consumption and low noise, light weight and miniaturization.

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Shi, Lei Ming, Guang Hui Jia, Zhi Fei Zhang, and Zhong Ming Xu. "Analysis and Research of the Combustion Process of YN4100QB Diesel Engine." Advanced Materials Research 744 (August 2013): 35–39. http://dx.doi.org/10.4028/www.scientific.net/amr.744.35.

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In order to obtain the foundation to the research on the Diesel Engine YN4100QB combustion process, exhaust, the optimal design of combustion chamber and the useful information for the design of exhaust muffler, the geometric model and mesh model of a type internal combustion engine are constructed by using FIRE software to analyze the working process of internal combustion engine. Exhaust noise is the main component of automobile noise in the study of controlling vehicle noise. It is primary to design a type of muffler which is good for agricultural automobile engine matching and noise reduction effect. The present car mufflers are all development means. So it is bound to cause the long cycle of product development and waste of resources. Even sometimes not only can it not reach the purpose of reducing the noise but also it leads to reduce the engine dynamic. The strength of the exhaust noise is closely related to engine combustion temperature and pressure. The calculation and initial parameters are applied to the software based on the combustion model and theory. According to the specific operation process of internal combustion engine. Five kinds of common operation condition was compiled. It is obtained for the detailed distribution parameters of combusted gas temperature pressure . It is also got for flow velocity of the fields in cylinder and given for the relation of the parameters and crankshaft angle for the further research. At the same time NOx emissions situation are got. The numerical results show that not only does it provide the 3D distribution data in different crank shaft angle inside the cylinder in the simulation of combustion process, but also it provides a basis for the engine combustion ,emission research, the optimization design of the combustion chamber and the useful information for the designs of muffler.

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Hamid, Abdullah Mustafa, Zulkarnain Abdul Latiff, Azhar Abdul Aziz, and Mohd Rozi Mohd Perang. "A Review on Butanol and Ethanol Fuels in Internal Combustion Engines." Applied Mechanics and Materials 819 (January 2016): 259–64. http://dx.doi.org/10.4028/www.scientific.net/amm.819.259.

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A controversial argument about alternative fuels is taking lots of researchers and scientists attention and so far ethanol and butanol, regardless their blending percentage, are the most promising alcohols due to their potential properties and low production cost. Many studies have been conducted to justify the optimum fuel to be implemented. In this work, a review will be conducted on both butanol and ethanol in internal combustion engine as well as their contribution in combustion engine regarding combustion performance, pollutant emission, ignition timing and knocking. According to the previous literature, an attractive advantage for alcohol-gasoline blends is that they don’t require engine modification design and still reduce the pollutant emission effectively. The properties of these fuels seem to prove not only that we can run our engines with a reduction of pollutant gases but with the emission of greenhouse gasses. This work will provide a review on ethanol and butanol as an alternative fuels and their properties and behaviour in the engine will be described individually.

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Polonec, T., and I. Janoško. "Improving performance parameters of combustion engine for racing purposes." Research in Agricultural Engineering 60, No. 3 (September 12, 2014): 83–91. http://dx.doi.org/10.17221/26/2012-rae.

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Mechanical parts of stock engine have a performance reserve which could be utilized when the engine is used under the race conditions. Especially normal turbocharged engines have their performance parameters designed to drive in traffic, where a good flexibility, reliability, fuel consumption and a long service life is required. It is possible to utilize the whole power of the engine, when changing or modifying some of its external parts and achieve better performance parameters without modifying or changing internal engine components. Performed changes must be realized thoughtfully and on the admittable level, so the engine and other drive train components would not be damaged. In our study we design several changes of external parts of engine which have a significant impact on the improvement of engine performance parameters. Their contribution has been verified in practice by an engine dynamometer.

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Koç, Tufan, Durmuş Karayel, Barış Boru, Vezir Ayhan, İdris Cesur, and Adnan Parlak. "Design and Implementation of the Control System of an Internal Combustion Engine Test Unit." Advances in Mechanical Engineering 6 (January 1, 2014): 914876. http://dx.doi.org/10.1155/2014/914876.

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Accurate tests and performance analysis of engines are required to minimize measurement errors and so the use of the advanced test equipment is imperative. In other words, the reliable test results depend on the measurement of many parameters and recording the experimental data accurately which is depended on engine test unit. This study aims to design the control system of an internal combustion engine test unit. In the study, the performance parameters of an available internal combustion engine have been transferred to computer in real time. A data acquisition (DAQ) card has been used to transfer the experimental data to the computer. Also, a user interface has been developed for performing the necessary procedures by using LabVIEW. The dynamometer load, the fuel consumption, and the desired speed can easily be adjusted precisely by using DAQ card and the user interface during the engine test. Load, fuel consumption, and temperature values (the engine inlet-outlet, exhaust inlet-outlet, oil, and environment) can be seen on the interface and also these values can be recorded to the computer. It is expected that developed system will contribute both to the education of students and to the researchers’ studies and so it will eliminate a major lack.

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Samanta, Abhishek. "A Novel Design and Fabrication of Electromagnetic Internal Combustion Engines." International journal of Emerging Trends in Science and Technology 05, no. 04 (April 25, 2017): 5094–101. http://dx.doi.org/10.18535/ijetst/v4i4.08.

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Jamil, Mohd Khairuladha, Mohd Ezwani Kadir, Mohamad Zikri Zainol, Abu Hanifah Abdullah, and Abu Zaid Bakar. "Preliminary Development of Electric Motorcycle Engine for Sport Aviation Vehicles." Applied Mechanics and Materials 225 (November 2012): 250–54. http://dx.doi.org/10.4028/www.scientific.net/amm.225.250.

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Flying activities of sport aviation vehicles normally use Internal Combustion Engines (ICE) for their powerplant, which emits Carbon Dioxide (CO2) and also produces noise. Environmental issues regarding harmful gas emission and noise may restrict the sport aviation activities and resulting in reduction of interest in flying as a sport activity. The feasible solution for this issue is by replacing the Internal Combustion Engines (ICE) with Electric Engines on all sport flying vehicles. The Modenas CTric Electric Engines was tested to measure the parameters required by comparable Internal Combustion Engine used by sport aviation flyers. Other parameters; engine endurance, temperature and performance, were also tested. The bench test was conducted using specially design test rig. The results show that there is a possibility for the Modenas CTric Motorcycles Electric Engine used as an alternate source of powerplant for paramotors and microlight aircraft. However, there is penalty on the vehicle payloads due to weight of the battery. Lighter battery technology integration is to be developed to reduce the weight of the flight vehicles. This study serves as a platform for further work in electric engine technology for commercial aircraft application. Availability of green engine (no emission and noise output) will generate more interest in sport aviation activities and prepare for the future commercial Electric Engine aircraft application.

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Harianton, Iwan, Ayi Ruswandi, and Mohammad Nurdin. "Design of New Ecological Combustion Engine with Double Potential Power Output." Applied Mechanics and Materials 465-466 (December 2013): 428–32. http://dx.doi.org/10.4028/www.scientific.net/amm.465-466.428.

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Internal combustion engine popularity has been won commercially by the four-stroke type engine surpassing the two-stroke and rotary wankel engines in the world market places. Commercial engines both gasoline and diesel fuels are mostly using the four-stroke principle and even the hybrid cars still rely on this type of engine as their backup source of power. Current research in this areas are optimizing the effectiveness of the four-stroke combustion engine related to fuel consumption, fuel-air mixture, reuse of exhaust energy to feed air inflow, fuel control system to feed exact volume of fuel, exact firing time using intelligent control unit and lower hydrocarbon emissions. However, the development in the engine power output generation is limited due to nearly satisfied expectation of the automotive users caused by limited road development; meanwhile, the short range aerospace engine technology has limited attention in the advanced countries but certainly not in the archipelago country such as Indonesia. This paper is classified to initiates first publication from series of research log book on a new engine design that promotes double power output principle called Double Power Ecological Engine (DPE) for power drive vehicles. The design of DPE engine is located in the firing order, which has direct influence to the new design configuration of crank shaft, air inlet, exhaust and the piston head geometry. The ultimate design of this combustion engine is secured under the firing orders, which are made to secure power output twice as much as it is in the four-stroke engine so that double potential power engine is promoted under ecological fuel ethanol. The design of DPE engine of this research is expected to generate 280 kW power output based on the 1.4 liter engine, which commercially generate around 141 kW. Further research will show the effectiveness of the DPE engine design leading to commercial application.

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Hoffman, D. M. W., and D. R. Dowling. "Fully Coupled Rigid Internal Combustion Engine Dynamics and Vibration—Part I: Model Development." Journal of Engineering for Gas Turbines and Power 123, no. 3 (January 1, 2001): 677–84. http://dx.doi.org/10.1115/1.1370399.

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Robust predictions of engine vibration are important for preliminary design of new engines and new vehicles, and in setting component tolerances. Vibration modeling of internal combustion engines is commonly based on a one-way-coupling assumption between the engine’s moving internal components and the vibrating engine block. This assumption causes Coriolis and gyroscopic interactions to be neglected, and leads to a vibration model that does not properly conserve energy. This paper presents a new seven-degree-of-freedom model for low frequency engine vibrations that does not utilize the one-way-coupling assumption. The model is based on fully coupled rigid-body dynamics for the pistons, connecting rods, crankshaft, flywheel, and engine block. Predictions from the new model are compared to those from an equivalent one-way-coupled model for poorly balanced (one-cylinder) and well-balanced (inline six-cylinder) engines. Predicted mount forces are dissimilar for the poorly balanced engine but are nearly the same for the well-balanced engine. In addition, the new model is found to properly conserve energy and account for gravitational forces.

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Finneran, Joshua, Colin P. Garner, Michael Bassett, and Jonathan Hall. "A review of split-cycle engines." International Journal of Engine Research 21, no. 6 (July 19, 2018): 897–914. http://dx.doi.org/10.1177/1468087418789528.

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This article reviews split-cycle internal combustion engine designs. The review includes historical work, assessment of prototypes and discussion of the most recent designs. There has been an abundance of split-cycle engine designs proposed since the first in 1872. Despite this, very few prototypes exist, and no split-cycle engines are reported to be in series production. The few split-cycle prototypes that have been developed have faced practical challenges contributing to limited performance. These challenges include air flow restrictions into the expansion cylinder, late combustion, thermal management issues, and mechanical challenges with the crossover valve actuation mechanism. The main promoted advantage of split-cycle engines is the increased thermal efficiency compared to conventional internal combustion engines. However, an efficiency improvement has not thus far been demonstrated in published test data. The thermodynamic studies reviewed suggest that split-cycle engines should be more efficient than conventional four-stroke engines. Reasons why increased thermal efficiency is not realised in practice could be due to practical compromises, or due to inherent architectural split-cycle engine design limitations. It was found that the number of split-cycle engine patents has increased significantly over recent years, suggesting an increased commercial interest in the concept since the possibility of increased efficiency becomes more desirable and might outweigh the drawbacks of practical challenges.

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WOŚ, Paweł, Artur JAWORSKI, Hubert KUSZEWSKI, Kazimierz LEJDA, and Adam USTRZYCKI. "Technical and operating problems yielded from setting up the optimum value of geometric compression ratio in piston engines." Combustion Engines 164, no. 1 (February 1, 2016): 3–14. http://dx.doi.org/10.19206/ce-116483.

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The article discusses the problem of choosing the optimal compression ratio value in internal combustion engines at their design phase, according to todays development trends toward high economy and ecology of road transportation and the divers expectations in vehicle use and performance. Because the variable compression ratio technology VCR is not yet developed well enough to be implemented into the mass production of engines in the near future, the choice of compression ratio value is always a serious task for constructors to find a compromise between the functional engine properties, operational characteristics, engine efficiency, the powertrain design complexity, and finally the exhaust emission level. Therefore, the paper examines the impact of the compression ratio on the combustion engine parameters mentioned above and presents some innovative designs, where the settings of the compression ratio value beyond the conventional range is connected with using additional solutions in design structure and control systems, with modifications corresponding to the working process in these engines.

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Panting, J., K. R. Pullen, and R. F. Martinez-Botas. "Turbocharger motor-generator for improvement of transient performance in an internal combustion engine." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 215, no. 3 (March 1, 2001): 369–83. http://dx.doi.org/10.1243/0954407011525700.

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Turbocharging of internal combustion engines is an established technology used for the purpose of increasing both power density and in some cases the cycle efficiency of diesel engines relative to naturally aspirated engines. However, one significant drawback is the inability to match the characteristics of the turbocharger to the engine under full load and also to provide sufficiently good transient response. Under many conditions this results in reduced efficiency and leads to higher exhaust emissions. The design of turbocharger components must be compromised in order to minimize these drawbacks throughout the entire operating range. However, when shaft power can be either added to or subtracted from the turbocharger shaft by means of a direct drive motor-generator, an additional degree of freedom is available to the designer to achieve a better turbocharger-engine matching. Both engine efficiency and transient response can be significantly improved by means of this method, normally described as hybrid turbocharging. This paper describes the results of a theoretical study of the benefits of hybrid turbocharging over a basic turbocharged engine in both steady state and transient operation. The new system and its benefits are described and four different engine-turbocharger systems are analysed in addition to the baseline engine. The main conclusion of the paper is that a significant increase in design point cycle efficiency can be afforded by re-matching the turbocharger components under steady state conditions while at the same time improving full throttle transient performance. Emissions are not considered in this paper.

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Sun, Jun, Lei Shu, Xianhao Song, Guangsheng Liu, Feng Xu, Enming Miao, Zhihao Xu, Zheng Zhang, and Junwei Zhao. "Multi-objective optimization design of engine crankshaft bearing." Industrial Lubrication and Tribology 68, no. 1 (February 8, 2016): 86–91. http://dx.doi.org/10.1108/ilt-03-2015-0040.

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Purpose – This paper aims to use the crankshaft-bearing system of a four-cylinder internal combustion engine as the studying object, and develop a multi-objective optimization design of the crankshaft-bearing. In the current optimization design of engine crankshaft-bearing, only the crankshaft-bearing was considered as the studying object. However, the corresponding relations of major structure dimensions exist between the crankshaft and the crankshaft-bearing in internal combustion engine, and there are the interaction effects between the crankshaft and the crankshaft-bearing during the operation of internal combustion engine. Design/methodology/approach – The crankshaft mass and the total frictional power loss of crankshaft-bearing s are selected as the objective functions in the optimization design of crankshaft-bearing. The Particle Swarm Optimization algorithm based on the idea of decreasing strategy of inertia weight with the exponential type is used in the optimization calculation. Findings – The total frictional power loss of crankshaft-bearing and the crankshaft mass are decreased, respectively, by 26.2 and 5.3 per cent by the multi-objective optimization design of crankshaft-bearing, which are more reasonable than the ones of single-objective optimization design in which only the crankshaft-bearing is considered as the studying object. Originality/value – The crankshaft-bearing system of a four-cylinder internal combustion engine is taken as the studying object, and the multi-objective optimization design of crankshaft-bearing based on the crankshaft-bearing system is developed. The results of this paper are helpful to the design of the crankshaft-bearing for engine. There is universal significance to research the multi-objective optimization design of crankshaft-bearing based on the crankshaft-bearing system. The research method of the multi-objective optimization design of crankshaft-bearing based on the crankshaft-bearing system can be used to the optimization design of the bearing in the shaft-bearing system of ordinary machinery.

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Mucino, V. H., W. G. Wang, and J. E. Smith. "Parametric Modelling of Internal Combustion Engine Systems for Design Optimization." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 204, no. 2 (April 1990): 113–24. http://dx.doi.org/10.1243/pime_proc_1990_204_143_02.

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He, Xiaohong, and Ruixian Cai. "Typical off-design analytical performances of internal combustion engine cogeneration." Frontiers of Energy and Power Engineering in China 3, no. 2 (February 13, 2009): 184–92. http://dx.doi.org/10.1007/s11708-009-0007-z.

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HUNICZ, Jacek, Andrzej NIEWCZAS, and Paweł KORDOS. "A research into a gasoline HCCI engine." Combustion Engines 140, no. 1 (February 1, 2010): 3–13. http://dx.doi.org/10.19206/ce-117154.

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Homogeneous charge compression ignition (HCCI) is nowadays a leading trend in the development of gasoline internal combustion engines. The application of this novel combustion system will allow to comply with future legislations concerning the exhaust emissions including carbon dioxide. This paper presents a design and implementation of a research engine with a direct fuel injection and the capability of HCCI combustion via an internal gas recirculation and a negative valves overlap (NVO). The technical approach used in the engine allowed an autonomous HCCI operation at variable loads and engine speeds without the need of a spark discharge. Experiments were conducted at a wide range of valve timings providing data which allowed an assessment of a volumetric efficiency and exhaust gas recirculation (EGR) rate. Permissible range of air excess coefficient, providing stable and repeatable operation has also been identified. The use of direct gasoline injection benefited in the improvement of the start of the combustion (SOC) and heat release rate control via the injection timing.

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Tikhonenkov, Serguei. "An internal combustion engine without a crankshaft. Perspectives." Combustion Engines 183, no. 4 (December 15, 2020): 39–44. http://dx.doi.org/10.19206/ce-2020-406.

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The article examines the level of perfection of the modern internal combustion engine design, their impact on the environment and population. A new engine concept has been developed. As a result, a decrease in fuel consumption by 80% has been discovered as well approaches to solve this task. A comparison of the proposed and traditional engine is presented. The effects of the new engine in the field of ecology such as a decrease in the number of diseases caused by poor environmental conditions, a lower risk of global warming, lower health care costs, an increase in life expectancy, the cheap electricity for industries and householders etc.

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Xiang, Yang, Jiachi Yao, Qiang Zhou, Sichong Qian, and Shuai Wang. "Research on Experimental Method for Obtaining Independent Combustion Noise of Internal Combustion Engine." Shock and Vibration 2018 (November 1, 2018): 1–14. http://dx.doi.org/10.1155/2018/2413831.

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Internal combustion engine noise sources are complex and changeable. Combustion noise is usually drowned out by mechanical noise and aerodynamic noise. Traditional noise source identification methods can only qualitatively identify combustion noise. In order to quantitatively obtain the independent pure combustion noise of an internal combustion engine, it is necessary to design and build a separate noise source simulation test bench. In this paper, the combustion noise separation test bench based on transfer function method is designed and implemented. In the test, a pressure pulse device is installed in the combustion chamber. When the piston is at top dead center (TDC), pulse pressure is generated to excite the internal combustion engine to radiate noise. The pressure signal and noise signal are utilized to obtain the transfer function of combustion pressure and noise. Then, according to the cylinder pressure and transfer function, the combustion noise can be directly calculated. The test was carried out on 4120SG diesel engine. Experimental results show that when the internal combustion engine is under 1500 rpm and no-load condition and 800 rpm and no-load condition, the frequency components of independent pure combustion noise are both mainly concentrated at 1100 Hz, 1400 Hz, and 3000 Hz. Furthermore, the internal combustion engine vibration test method and the combustion noise empirical formula calculation method are both carried out to show accuracy and effectiveness of the obtained independent combustion noise through the combustion noise separation test based on transfer function method.

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Yeh, Chung Wei, and Kee Rong Wu. "An Integrated Multimedia Learning System for Reciprocating Internal Combustion Engines: RICEM." Applied Mechanics and Materials 39 (November 2010): 91–96. http://dx.doi.org/10.4028/www.scientific.net/amm.39.91.

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A cost-effective multimedia learning system, RICEM, for reciprocating internal combustion engines was proposed in this study. This system contained the graphical introduction of engine components, engine structure animation, thermal theory, feedback and assessment based on Mayer’s multimedia learning cognitive theory. Reciprocating internal combustion engines are used all over the world to drive compressors, pumps, electric generators, motor ships and other equipments. We used multimedia software to construct the learning system. An experiment comprising of two groups of 30 participants separately was conduct to test the effectiveness and showed that there was a significant difference between the pre-test and post-test score in the RICEM group, as compared with the control group. This study suggested that a collaborative application appeared to be promising in supporting effective learning of modern technology, by combining the integration of learning theory and multimedia design.

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Yeh, Chung Wei. "An Integrated Multimedia Learning System for Reciprocating Internal Combustion Engines: RICEM." Advanced Materials Research 213 (February 2011): 211–15. http://dx.doi.org/10.4028/www.scientific.net/amr.213.211.

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A cost-effective multimedia learning system, RICEM, for reciprocating internal combustion engines was proposed in this study. This system contained the graphical introduction of engine components, engine structure animation, feedback and assessment based on Mayer’s multimedia learning cognitive theory. Reciprocating internal combustion engines are used all over the world to drive compressors, pumps, electric generators, motor ships and other equipments. We used multimedia software to construct the learning system. An experiment comprising of two groups of 30 participants separately was conduct to test the effectiveness and showed that there was a significant difference between the pre-test and post-test score in the RICEM group, as compared with the control group. This study suggested that a collaborative application appeared to be promising in supporting effective learning of modern technology, by combining the integration of learning theory and multimedia design.

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Larson, J. M., L. F. Jenkins, S. L. Narasimhan, and J. E. Belmore. "Engine Valves—Design and Material Evolution." Journal of Engineering for Gas Turbines and Power 109, no. 4 (October 1, 1987): 355–61. http://dx.doi.org/10.1115/1.3240048.

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This paper reviews the design and material evolution of poppet valves used in reciprocating internal combustion engines in the United States. Driving forces which led to the current state-of-the-art technology, such as needs for improved durability and cost effectiveness, are described. This paper also endeavors to predict how valve materials, design, and construction will change over the next two decades in response to continual engine performance improvement demands in a worldwide competitive environment. As a basis for understanding the past evolution and future trends in valve design, the key operating parameters that affect valve function are detailed.

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Yakovenko, Andrey L., Mikhail G. Shatrov, Andrey O. Glazkov, Sergey M. Kuznetsov, Igor V. Alekseev, and Sergey N. Bogdanov. "Modern Approaches For Modeling Of Structure-Borne Noise Of The Internal Combustion Engine." International Journal of Online and Biomedical Engineering (iJOE) 16, no. 07 (June 19, 2020): 105. http://dx.doi.org/10.3991/ijoe.v16i07.14547.

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The article considers the structure of acoustic radiation of an internal combustion engine and modern technologies for noise research. Models of the internal combustion engine as a source of noise and methods for modeling the design and calculating the structure-borne noise of the engine at different stages of its design are described. The method of the engine structure-borne noise calculating for unsteady operation mode is presented. Differences in the working process of the engine for the transient operation mode are shown. Some results of calculations of diesel engine structure-borne noise for different operation modes using MADI methods and using the AVL EXCITE software are presented

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Journal articles on the topic 'Internal combustion engine design'

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