Academic literature on the topic 'Engine turbocharging'

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Journal articles on the topic "Engine turbocharging"

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Zhu, Dengting, Zhenzhong Sun, and Xinqian Zheng. "Turbocharging strategy among variable geometry turbine, two-stage turbine, and asymmetric two-scroll turbine for energy and emission in diesel engines." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 234, no. 7 (November 28, 2019): 900–914. http://dx.doi.org/10.1177/0957650919891355.

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Energy saving and emission reduction are very urgent for internal combustion engines. Turbocharging and exhaust gas recirculation technologies are very significant for emissions and fuel economy of internal combustion engines. Various after-treatment technologies in internal combustion engines have different requirements for exhaust gas recirculation rates. However, it is not clear how to choose turbocharging technologies for different exhaust gas recirculation requirements. This work has indicated the direction to the turbocharging strategy among the variable geometry, two-stage, and asymmetric twin-scroll turbocharging for different exhaust gas recirculation rates. In the paper, a test bench engine experiment was presented to validate the numerical models of the three diesel engines employed with the asymmetric twin-scroll turbine, two-stage turbine, and variable geometry turbine. On the basis of the numerical models, the turbocharging routes among the three turbocharging approaches under different requirements for EGR rates are studied, and the other significant performances of the three turbines were also discussed. The results show that there is an inflection point in the relative advantages of asymmetric, variable geometry, and two-stage turbocharged engines. At the full engine load, when the EGR rate is lower than 29%, the two-stage turbocharging technology has the best performances. However, when the exhaust gas recirculation rate is higher than 29%, the asymmetric twin-scroll turbocharging is the best choice and more appropriate for driving high exhaust gas recirculation rates. The work may offer guidelines to choose the most suitable turbocharging technology for engine engineers and manufacturers to achieve further improvements in engine energy and emissions.
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Dong, Da Lu, Chang Pu Zhao, Xiao Zhan Li, Yun Yao Zhu, and Jun Zhang. "Simulation Study of the Impact of Two-Stage Turbocharged System on Diesel Engine." Applied Mechanics and Materials 170-173 (May 2012): 3555–59. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.3555.

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With the increasing strictness of emission regulations, development direction of future diesel engines is toward the high thermal efficiency and low emissions. Supercharging technology is an important means for improving output power of diesel engines. This paper deals with the study of the two-stage turbocharging system of the non-road diesel engine. Based on GT-Power software code, a digital model of 6112 diesel engine was established. The supercharged model was calibrated by using the original experimental data. Then, four types of digital models with different two-stage turbocharging systems were constructed. The best two-stage turbocharging system was determined through investigating the impacts of different options on the performance of diesel engines. It was indicated through the study that two-stage turbocharging system can substantially increase the air flowing into the cylinder which increases the potential of power density. At the same time HC and NOx emissions can reduce. Through this study, a theoretical basis and an important reference for adopting the two-stage turbocharging system of the 6112 diesel engine were provided.
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Zhao, Fu Zhou, Xiu Min Wang, and Kun Zi. "Vehicle Hybrid Turbocharging System and its Analysis of Energy Flow in Key Condition." Applied Mechanics and Materials 71-78 (July 2011): 2327–30. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.2327.

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By comparing the characteristics of various turbocharging system, then hybird turbocharging system is proposed. In principle the technical approach of hybrid turbocharging system is analyzed to solve the steady and transient condition problem about vehicle diesel engine. Then several modes of energy flow about hybrid turbocharging system are analyzed, and calculation processes about each share of the energy flow are given. According to the characteristic of turbocharged diesel engine, the energy flow distribution of the two typical engine conditons is calculated. Analysis of energy flow is of great significance to properly distribute the energy share and improve the performance of the turbocharging system.
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DANILECKI, Krzysztof. "Trends in the development of turbocharging systems in automotive vehicles." Combustion Engines 133, no. 2 (May 1, 2008): 61–76. http://dx.doi.org/10.19206/ce-117248.

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The application of turbocharging systems results in serious problems related to the delivery of appropriate amount of air needed to entirely burn the supplied dose of fuel. This problem is particularly relevant for non-adjustable turbocharging systems (constant geometry turbines). The improvements of the turbocharging systems in compression ignition engines may be implemented through such solutions as two stage or sequential turbocharging that show significant benefits as opposed to a single stage variable turbocharger geometry (VGT) turbocharging. The paper presents adjustable two stage turbocharging and sequential turbocharging finding application in serially manufactured vehicles. The assessment of the properties of these solutions and attempts to describe the trends in the further development of the turbocharging systems have been made. With this background, the results of own research of the author have been presented performed on a SW 680 sequentially turbocharged engine.
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Cui, Yi, Hongzhong Gu, Kangyao Deng, and Shiyou Yang. "Study on Mixed Pulse Converter (MIXPC) Turbocharging System and Its Application in Marine Diesel Engines." Journal of Ship Research 54, no. 01 (March 1, 2010): 68–77. http://dx.doi.org/10.5957/jsr.2010.54.1.68.

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In order to improve fuel efficiency and power density, the boost pressure of diesel engine is increasing continuously. The increase in boost level leads to some problems, such as lack of air under part load operating conditions, response delay during transient processes, and high mechanical and thermal load. In order to meet the high boost level demand, a new type of turbocharging system—mixed pulse converter (MIXPC) turbo-charging system for multicylinder diesel engines (from 4 to 20 cylinders) has been invented. A turbocharged diesel engine simulation model, based on one-dimensional finite volume method (FVM) and total variation diminishing (TVD) scheme, has been developed and used to design and analyze the MIXPC turbocharging system. The applications of MIXPC system in in-line 8- and 4-cylinder and V-type 16-cylinder medium-speed marine diesel engines have been studied by calculation and experiments. The results show that the invented MIXPC system has superior engine fuel efficiency and thermal load compared with original turbocharging systems.
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Benvenuto, G., and U. Campora. "Dynamic simulation of a high-performance sequentially turbocharged marine diesel engine." International Journal of Engine Research 3, no. 3 (June 1, 2002): 115–25. http://dx.doi.org/10.1243/14680870260189244.

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The sequential turbocharging technique is used to improve the performance of highly rated diese engines in particular at part loads. However, the transient behaviour of the sequential turbocharging connection/disconnection phases may be difficult to calibrate and requires an accurate study and development. This may be accomplished, in addition to the necessary experimentation, by means of dynamic simulation techniques. In this paper a model for the dynamic simulation of a sequentially turbocharged diesel engine is presented. A two-zone, non-adiabatic, actual cycle approach is used for the chemical and thermodynamic phenomena simulation in the cylinder. Fluid mass and energy accumulation in the engine volumes are evaluated by means of a filling and emptying method. The simulation of the turbocharger dynamics combines the use of the compressor and turbine maps with a model of the sequential turbocharging connection/disconnection valves and of their governor system. The procedure is applied to the simulation of the Wärtsilä 18V 26X engine, a highly rated, recently developed, sequentially turbocharged marine diesel engine, whose experimental results are used for the steady state and transient validation of the simulation code with particular reference to the sequential turbocharging connection/disconnection phases. The presented results show the time histories of some important variables during typical engine load variations.
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Swain, Ed. "Turbocharging the submarine diesel engine." Mechatronics 4, no. 4 (June 1994): 349–67. http://dx.doi.org/10.1016/0957-4158(94)90017-5.

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Zhang, Peng-qi, Li-jun Zong, and Yin-yan Wang. "Turbocharging the DA465 gasoline engine." Journal of Marine Science and Application 7, no. 2 (May 30, 2008): 111–15. http://dx.doi.org/10.1007/s11804-008-7026-8.

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Zhao, Fu Zhou, Rong Liang, and Xiao Ping Chen. "Study on Steady Condition Control of Hybrid Turbocharging System." Advanced Materials Research 139-141 (October 2010): 1941–44. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.1941.

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This paper analyzes the principle of hybrid turbocharging system in a vehicle diesel engine, and proposes motor control model about hybrid turbocharging system in steady engine operation condition according to energy imbalance of the exhaust gas. The high-speed motor can work as a motor or a generator in this control model of different engine condition. Then mapping algorithms about n-dimensional linear interpolation and BP neural network are presented to solve steady condition control problem of the hybrid turbocharging system. Each algorithm is applied to map same sample data, the simulation results reveal that BP neural network mapping algorithm is more suitable for the mapping control of hybrid turbocharging system because BP neural network has better generalization ability and faster processing speed.
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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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Dissertations / Theses on the topic "Engine turbocharging"

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Buchman, Michael Rafael. "Characterizing and designing engine manifolds for single-cylinder engine turbocharging." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/120395.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2018.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 151-156).
Turbocharging can provide a cost-effective means for increasing the power output and fuel economy of an internal combustion engine. It is commonly used on multi-cylinder engines, but not on commercial single-cylinder engines due to the phase mismatch between the exhaust stroke (when the turbocharger is powered) and the intake stroke (when the engine requires the compressed air). This work explores overcoming the phase mismatch problem by adding an air capacitor: a volume added in series with the intake manifold between the turbocharger compressor and the engine intake. The function of the air capacitor is to buffer the output from the turbocharger compressor and deliver pressurized air during the intake stroke. This research focuses on demonstrating the feasibility of using an air capacitor to enable turbocharging single cylinder internal combustion engines. An analytical model of the system was created from first principles, which showed that the air capacitor turbocharging method could increase power output by up to 40% without heat transfer and up to 70% with heat transfer elements included in the intake manifold (such as an intercooler). An initial, proof-of-concept experiment was created using a generator as a dynamometer. With an air capacitor volume seven times the engine capacity, this setup was able to produce 29% more power compared to the same engine naturally aspirated. A numerical model was developed in Ricardo Wave to predict the performance of turbocharged single cylinder engines with air capacitors under different conditions. An experimental engine with accompanying dynamometer was constructed to demonstrate the effects of manifold sizing on engine performance and to experimentally validate the model. The experiment showed that the model was able to predict power output with an accuracy of 8% of peak power, fuel consumption within 7% error, air mass flow rates with 10% error, and manifold pressures within 7% error. The model was then combined with a simulated annealing optimization scheme in Matlab in order to conceptualize designs for the geometry and timings of single-cylinder turbocharged engines intended for different commercial applications. The optimization showed that adding an air capacitor and turbocharger to a 0.44L engine, with slight modifications to the valve and injector timings, could increase power by 88% compared to natural aspiration. By also modifying the bore and stroke, the turbocharged engine with an air capacitor could reduce fuel consumption by 8% compared to a naturally aspirated engine with equivalent peak power output.
by Michael Buchman.
Ph. D.
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Attard, William. "Small engine performance limits - turbocharging, combustion or design." SAE Technical Paper Series, 2007. http://repository.unimelb.edu.au/10187/514.

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Growing concerns about interruption to oil supply and oil shortages have led to escalating global oil prices. In addition, increased public acceptance of the global warming problem has prompted car manufacturers to agree to carbon emission targets in many regions including most recently, the Californian standards. Other legislating bodies are sure to follow this lead with increasingly stringent targets. As a result of these issues, spark ignition engines in their current form will need significant improvements to meet future requirements. One technically feasible option is smaller capacity downsized engines with enhanced power that could be used in the near term to reduce both carbon emissions and fuel consumption in passenger vehicles.This research focuses on exploring the performance limits of a 0.43 liter spark ignited engine and defining its operating boundaries. Limiting factors such as combustion, gas exchange and component design are investigated to determine if they restrict small engine performance. The research gives direction to the development of smaller gasoline engines and establishes the extent to which they can contribute to future powertrain fuel consumption reduction whilst maintaining engine power at European intermediate class requirements.
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Noor, Alias Bin Mohd. "An experimental and theoretical investigation of the design of single entry radial inflow turbocharger turbine volutes." Thesis, University of Bath, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235566.

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Baker, Alan T. "Turbo-discharging the internal combustion engine." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/16337.

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This thesis reports original research on a novel internal combustion (IC) engine charge air system concept called Turbo-Discharging. Turbo-Discharging depressurises the IC engine exhaust system so that the engine gas exchange pumping work is reduced, thereby reducing fuel consumption and CO2 emissions. There is growing concern regarding the human impact on the climate, part of which is attributable to motor vehicles and transport. Recent legislation has led manufacturers to improve the fuel economy and thus reduce the quantity of CO2 generated by their vehicles. As this legislation becomes more stringent manufacturers are looking to new and developing technologies to help further improve the fuel conversion efficiency of their vehicles. Turbo-Discharging is such a technology which benefits from the fact it uses commonly available engine components in a novel system arrangement. Thermodynamic and one-dimensional gas dynamics models and experimental testing on a 1.4 litre four cylinder four-stroke spark ignition gasoline passenger car engine have shown Turbo-Discharging to be an engine fuel conversion efficiency and performance enhancing technology. This is due to the reduction in pumping work through decreased exhaust system pressure, and the improved gas exchange process resulting in reduced residual gas fraction. Due to these benefits, engine fuel conversion efficiency improvements of up to 4% have been measured and increased fuel conversion efficiency can be realised over the majority of the engine operating speed and load map. This investigation also identified a measured improvement in engine torque over the whole engine speed range with a peak increase of 12%. Modelling studies identified that both fuel conversion efficiency and torque can be improved further by optimisation of the Turbo-Discharging system hardware beyond the limitations of the experimental engine test. The model predicted brake specific fuel consumption improvements of up to 16% at peak engine load compared to the engine in naturally aspirated form, and this increased to up to 24% when constraints imposed on the experimental engine test were removed.
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Westin, Fredrik. "Accuracy of turbocharged SI-engine simulations." Licentiate thesis, KTH, Machine Design, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1491.

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This licentiate thesis deals mainly with modelling ofturbocharged SIengines. A model of a 4-cylinder engine was runin both steady state and transient conditions and the resultswere compared to measured data. Large differences betweenmeasurements and simulations were detected and the reasons forthis discrepancy were investigated. The investigation showedthat it was the turbocharger turbine model that performed in anon-optimal way. To cope with this, the turbine model containedparameters, which could be adjusted so that the model resultsmatched measured data. However, it was absolutely necessary tohave measured data to match against. It was thus concluded thatthe predictivity of the software tool was too poor to try topredict the performance of various boosting systems. Thereforemeans of improving the modelling procedure were investigated.To enable such an investigation a technique was developed tomeasure the instantaneous power output from, and efficiency of,the turbine when the turbocharger was used on the engine.

The project’s initial aim was to predict, throughsimulations, the best way to boost a downsized SI-engine with avery high boost-pressure demand. The first simulation run on astandard turbocharged engine showed that this could not be donewith any high accuracy. However, a literature study was madethat presents various different boosting techniques that canproduce higher boost pressure in a larger flow-range than asingle turbocharger, and in addition, with smallerboost-pressure lag.

Key words:boosting, turbocharging, supercharging,modelling, simulation, turbine, pulsating flow, unsteadyperformance, SI-engine, measurement accuracy

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Wijetunge, Roshan. "Transient optimisation of a diesel engine." Thesis, University of Bath, 2001. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341697.

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Terdich, Nicola. "Impact of electrically assisted turbocharging on the transient response of an off-highway diesel engine." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/25395.

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Engine boosting via turbocharging is a method to increase the engine power output with minimal or no increase in engine parasitic, frictional and pumping losses. Turbocharging in conjunction with engine down-sizing and down-speeding allows a reduction of engine fuel consumption, while maintaining a high engine power output. However, turbocharging introduces a lag in engine transient response, caused by the finite amount of time required by the turbocharger to accelerate, which has to be minimized. Electric turbocharger assistance consists of coupling an electric motor/generator to a standard turbocharger. The scope of the motor/generator is to increase the power available to accelerate the rotor assembly, so that the time to boost is reduced. The motor/generator could also be utilized to brake the turbocharger to control boost and avoid over-speeds, thus replacing the conventional waste-gate. Furthermore, electric assistance allows turbocompounding to be implemented. Turbocompounding improves the engine efficiency by utilizing the turbine and motor/generator to recuperate additional exhaust flow energy. In this thesis, the electric turbocharger assistance impact on the turbocharger and engine performance is studied. An electrically assisted turbocharger prototype has been developed by industrial partners and it has been tested by the author of this thesis. The performance of the turbocharger turbine and motor/generator has been characterized over the full speed range and the impact of the electric assistance on the turbine flow has been investigated experimentally. It has not been possible to characterize the turbine up to choking conditions, so the data has been extrapolated via a mean-line model. The performance data obtained has been utilized to generate a model of the assisted turbocharger, which has been coupled to a one-dimensional model of a non-highway 7-litre diesel engine. This model has been utilized to study the impact of electric turbocharger assistance on the engine transient performance. The electrical machine characterization revealed that the switched reluctance motor/generator operates efficiently up to a speed of 135,000 rev/min, making it one of the fastest running switched reluctance machines of this size. The peak machine efficiency is 93% (excluding the turbocharger bearing losses) and the maximum power output measured is 5.3 kW in generating mode and 4.3 kW in motoring mode. The motor/generator rotor aerodynamic drag loss has been calculated via computational fluid dynamics software and has been found to be 63 W at 140,000 rev/min. Via a novel experimental technique, it has been possible to characterize the turbocharger turbine down to an expansion ratio of 1.00. This experiment revealed that the mass flow rate drops to zero at an expansion ratio higher than unity and that below this critical pressure ratio the turbine flow is reversed. The characterization of the turbine during speed transients showed that the operating point on the performance map deviates from the quasi-steady line. This indicates that minor unsteady effects occur in the turbine and exhaust manifold flow. A further experiment revealed that the motor/generator torque oscillations have a negligible impact on the turbine performance. The engine simulations showed that the ideal electric assistance motoring power for this application is in the 5 to 10 kW range. A 5 kW machine reduces the engine speed drop, which occurs when the engine load is suddenly increased, by up to 83%, depending on the initial load and load step size, and reduces the time to recover the original speed by up to 86%. The simulations also revealed that electric assistance is more effective than the turbine variable geometry system in improving the engine transient response, but the variable geometry system is useful to optimize boost for engine specific fuel consumption over different engine loading conditions.
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Fajkus, Martin. "Úprava atmosférického motoru na motor přeplňovaný." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229682.

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Aim of this diploma thesis is the modification of naturally aspirated engine for Formula Student competition to turbocharged version. Modification which were made are based on the issue knowledge and calculations. The input data were obtained from 3D scanning and measurements, at the school laboratories. All 3D models were created in Pro / Engineer. Input data for the computional analysis was developed in Lotus Engine Simulation. Computational analysis was performed in ANSYS by finite element method. Calculations had to simulate a piston behavior at the critical situations where the engine is under the maxiumum load.
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Dolák, Jindřich. "Zvýšení pružnosti zážehového závodního motoru přeplňováním." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229713.

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Aim of this diploma thesis is the turbocharger design calculation for single cylinder SI engine for Formula Student. This thesis includes a mathematical model of the engine, which is created in the Lotus Engine Simulation. This model applies for tuning the regulation of turbocharger charging pressure. Lotus uses the turbine waste gate valve for this regulation. The results of the simulation are the charging pressure,lengths of the intake manifold and etc. These parameters ensure the optimal engine qualities. The knowlege and results of the simulations are summarized at the conclusion.
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Li, Yuanping. "Experimental study of a Miller cycle based approach for an efficient boosted downsized gasoline Di engine." Thesis, Brunel University, 2018. http://bura.brunel.ac.uk/handle/2438/16807.

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Driven by the strict fuel consumption and CO2 legislations in Europe and many countries, various technologies have been developed to improve the fuel economy of conventional internal combustion engines. Gasoline engine downsizing has become a popular and effective approach to reduce fleet CO2 emissions of passenger cars. This is typically achieved in the form of boosted direct injection gasoline engines equipped with variable valve timing devices. Downsized gasoline engines reduce vehicle fuel consumption by making engine operate more at higher load to reduce pumping losses and also through reducing total engine friction losses. However, their compression ratio (CR) and efficiency are constrained by knocking combustion as well as the low speed pre-ignition phenomena. Miller cycle is typically achieved in an engine with reduced effective CR through Early Intake Valve Closure (EIVC) or Later Intake Valve Closure (LIVC). This technology has been adopted on modern gasoline engines to reduce in-cylinder charge temperature and enable a higher geometric CR to be used for better fuel economy. The present work investigated the effectiveness and underlying process of a Miller cycle based approach for improving fuel consumption of a boosted downsized gasoline engine. A single cylinder direct injection gasoline engine and the testing facilities were set up and used for extensive engine experiments. Both EIVC and LIVC approaches were tested and compared to the conventional Otto cycle operation with a standard cam profile. Synergy between Miller cycle valve timings and different valve overlap period was analysed. Two pistons with different CRs were used in the Miller cycle engine testing to enable its full potential to be evaluated. The experimental study was carried out in a large engine operation area from idle to up to 4000rpm and 25.6bar NIMEP to determine the optimal Miller cycle strategy for improved engine fuel economy in real applications. In addition, the increased exhaust back pressure and friction losses corresponding to real world boosting devices were calculated to evaluate Miller cycle benefits at high loads in a production engine. The results have shown that EIVC combined with high CR can offer up to 11% reduction of fuel consumption in a downsized gasoline engine with simple setup and control strategy. At the end, this thesis presents an Miller cycle based approach for maximising fuel conversion efficiency of a gasoline engine by combining three-stage cam profiles switching and two-stage variable compression ratio.
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Books on the topic "Engine turbocharging"

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International Conference on Turbochargers and Turbocharging (10th 2012 London). 10th International Conference on Turbochargers and Turbocharging: 15-16 May 2012, Savoy Place, London. Cambridge: Woodhead Publishing, 2012.

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Motorcycle turbocharging, supercharging & nitrous oxide: A complete guide to forced induction and its use on modern motorcycle engines. North Conway, N.H: Whitehorse Press, 1997.

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Holdener, Richard. Xtreme Honda B-series engines: Dyno-tested performance parts, tuning, supercharging, turbocharging, and nitrous oxide--includes B16A1/2/3 (Civic. Del Sol), B17A (GSR), B18C (GSR), B185C (Type R), B18A/B (LS/VTEC Hybrid) and B20 (CRV). New York: HPBooks, 2009.

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Tomlinson, Bob. Turbomania: Turbocharging the Vw Engine. Motorbooks Intl, 1991.

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Diesel Engine Engineering 2: Thermodynamics, Turbocharging, Dynamics, Design, Control. USA: King Printing Compant, Inc., 2011.

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Tex.) Energy-Sources Technology Conference and Exhibition (1992 : Houston. Diesel Engine Processes: Turbocharging Combustion and Emission (Ice, Vol 17). American Society of Mechanical Engineers, 1992.

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Teoman, Uzkan, American Society of Mechanical Engineers. Internal Combustion Engine Division., and Energy-Sources Technology Conference and Exhibition (1992 : Houston, Tex.), eds. Diesel engine processes: Turbocharging, combustion, and emission : presented at the Energy-Sources Technology Conference and Exhibition, Houston, Texas, January 26-30, 1992. New York, N.Y: ASME, 1992.

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Book chapters on the topic "Engine turbocharging"

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Zhang, Yangjun, Weilin Zhuge, Shuyong Zhang, and Jianzhong Xu. "Through Flow Models for Engine Turbocharging and Exhaust Heat Recovery." In Fluid Machinery and Fluid Mechanics, 227–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-89749-1_32.

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Rappsilber, Rudi, J. Thiesemann, and J. Kech. "Electrically assisted turbocharging – enhanced engine agility for off-highway applications." In Proceedings, 297–313. Wiesbaden: Springer Fachmedien Wiesbaden, 2019. http://dx.doi.org/10.1007/978-3-658-25889-4_18.

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Plotnikov, L. V., Yu M. Brodov, and N. I. Grigor’ev. "Features of Pulsating Flows Thermomechanics in Exhaust System of Piston Engine with Turbocharging." In Lecture Notes in Mechanical Engineering, 541–48. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22041-9_58.

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Stone, Richard. "Turbocharging." In Introduction to Internal Combustion Engines, 188–217. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-17910-7_7.

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Stone, Richard. "Turbocharging." In Introduction to Internal Combustion Engines, 372–416. London: Macmillan Education UK, 1999. http://dx.doi.org/10.1007/978-1-349-14916-2_9.

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Stone, Richard. "Turbocharging." In Introduction to Internal Combustion Engines, 324–60. London: Macmillan Education UK, 1992. http://dx.doi.org/10.1007/978-1-349-22147-9_9.

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Stone, Richard. "Turbocharging." In Solutions Manual for Introduction to Internal Combustion Engines, 131–64. London: Macmillan Education UK, 1999. http://dx.doi.org/10.1007/978-1-349-15079-3_9.

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Stone, Richard. "Turbocharging and supercharging." In Introduction to Internal Combustion Engines, 291–327. London: Macmillan Education UK, 2012. http://dx.doi.org/10.1007/978-1-137-02829-7_10.

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Plotnikov, L. V., S. Bernasconi, and P. Jacoby. "Improvement of Environmental Characteristics of Diesel Locomotive Engine with Turbocharging by Changing Valve Timing (Based on Miller Cycle)." In Lecture Notes in Mechanical Engineering, 549–58. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22041-9_59.

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Albin Rajasingham, Thivaharan. "Two-Stage Turbocharging: Control." In Nonlinear Model Predictive Control of Combustion Engines, 283–92. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68010-7_13.

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Conference papers on the topic "Engine turbocharging"

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Wirth, M., U. Mayerhofer, W. F. Piock, and G. K. Fraidl. "Turbocharging the DI Gasoline Engine." In SAE 2000 World Congress. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2000. http://dx.doi.org/10.4271/2000-01-0251.

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Mckissick, Garry W., and David M. Schmidt. "Turbocharging the Chrysler 2.4L Engine." In SAE 2003 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2003. http://dx.doi.org/10.4271/2003-01-0410.

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Boretti, Alberto. "Super-Turbocharging the Gasoline Engine." In International Conference on Advances in Design, Materials, Manufacturing and Surface Engineering for Mobility. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2018. http://dx.doi.org/10.4271/2018-28-0007.

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Ranini, Alain, and Gaëtan Monnier. "Turbocharging a Gasoline Direct Injection Engine." In SAE 2001 World Congress. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2001. http://dx.doi.org/10.4271/2001-01-0736.

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Allen, Floyd E., and Thomas W. Witte. "Turbocharging the Chrysler 2.5 Liter Engine." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1990. http://dx.doi.org/10.4271/900852.

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Rodgers, C. "Turbocharging a high altitude UAV C.I. engine." In 37th Joint Propulsion Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2001. http://dx.doi.org/10.2514/6.2001-3970.

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VanDyne, Edward A., and Michael B. Riley. "An Advanced Turbocharging System for Improved Fuel Efficiency." In ASME 2007 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/icef2007-1808.

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Turbochargers provide an efficient method of utilizing exhaust energy to boost intake air pressure for improved engine performance and efficiency. However transient operation requires increased air delivery (via quicker compressor response) to allow more rapid fueling for acceleration in both diesel and natural gas engines. In diesel engines rapid boosting will avoid increased particulates caused by excessive fueling during acceleration. Further, in applications that use either a wastegate, inlet bypass or variable vanes in the turbine to limit boost pressures, the excess energy in the exhaust is thrown away. The SuperTurbo™ (or superturbocharger) can recover much of the wasted energy and return it to the crankshaft, increasing overall efficiency. Woodward has developed a mechanical geartrain connected to the turbine shaft that transmits power through a variable speed hydraulic transmission to the crankshaft of an engine. This combination, a superturbocharger, provides the needed characteristics of (a) recovery of energy at high speed/load operating points (turbocompounding), (b) very rapid acceleration of the turbine shaft during transients (supercharging), (c) elimination of boost limitation devices, and (d) a variable speed hydraulic transmission that will be lower cost than a high-speed, high-power electrical system. While the air requirements are different for diesel and natural gas engines, both have sufficient exhaust energy to drive a turbine beyond the needs of the compressor for much of the performance map. Part load operation may be different as natural gas engines are usually throttled. The choice of a diesel or natural gas application was influenced by the availability of a suitable engine. The first prototype superturbocharger was built and tested on a Mack E7G natural gas engine, replacing the wastegated turbocharger of the stock engine. Preliminary results show fuel economy improvements of almost 6% at high speeds and high loads. In addition the load response of the engine was greatly increased due to the ability to accelerate turbine shaft speed, increasing boost. However there was a peak power output drop due to limitations in boost and imperfect sizing.
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Liu, Huimeng, Yongchang Liu, and Li Cao. "Swirl Turbocharging Exhaust System and its Application Study." In ASME 2001 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-ice-443.

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Abstract A novel modular single exhaust manifold called swirl turbocharging exhaust system is described. The flow field was modeled and compared with the flow behavior in MPC system. Numerical calculation results of the manifold flow show that its flow field characteristics were different from that of the MPC’s. To investigate the efficient two swirl turbocharging exhaust systems were designed and applied to two turbocharged diesel engines respectively. The test results reveal that both engines with the new type turbocharging system have promising performance.
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Avola, Calogero, Colin Copeland, Richard Burke, and Chris Brace. "Numerical Investigation of Two-Stage Turbocharging Systems Performance." In ASME 2016 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/icef2016-9449.

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In regulated two-stage sequential turbocharging systems, a smaller, high pressure (HP), and a larger, low pressure (LP), turbocharger are sequentially positioned to recover the energy available in the exhaust gases and deliver acceptable level of boost to the intake of an internal combustion engine. Due to the different sizes of the turbochargers, by-pass valves are placed in the system to control operations. Due to the turbocharging system layout, it is clear that the air pressurized by the LP compressor enters non-uniformly the HP compressor. This is caused by the rotating radial compressor and the interconnecting bends which cause swirl and velocity to scatter, respectively. Furthermore, the heat transfer in the two turbochargers may have an effect on the apparent efficiencies. For these reasons, the standard mapping approach for turbochargers is not able to take into account the effect of non-uniform flow and heat transfer. In this paper, a novel approach for mapping the two-stage turbocharging system is proposed and performed into a mono-dimensional simulation code. Although, flow non-uniformity and turbochargers heat transfer effects on the performance of the turbocharging system are not considered, at this present time, the study centralizes on the investigation and the validation of the mapping approach. In fact, a two-stage sequential turbocharging system has been considered for the study and a simulation code to investigate the mapping technique has been implemented.
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Gwehenberger, Tobias, Martin Thiele, Martin Seiler, and Douglas Robinson. "Single-Stage High-Pressure Turbocharging." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59322.

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To meet the ever-increasing demands that will be made on engines, and especially on planned new engine generations, in the future, the power density of their turbochargers will have to be significantly increased. Raising the brake mean effective pressure, introducing Miller timing and providing support for exhaust-gas treatment all presuppose an increase in the turbo’s compressor pressure ratio while keeping the turbo unit as compact as possible. To fulfill all of these conditions with single-stage turbocharging, a new approach to future turbocharger design is needed, especially when additional expensive materials, such as titanium, are not to be used. On the compressor side, when using proven aluminum compressors, this requires additional cooling of the compressor wheels. But other turbocharger components too, such as the turbine, bearings, shaft seals and also the casings and their connections, are exposed to higher thermal and mechanical stresses as a result of the pressure ratios being far higher than those of turbochargers currently on the market. The challenge, which could also be called a balancing act, in dimensioning new turbochargers for single-stage high-pressure turbocharging with aluminum compressors is to design the components with the help of the available tools such that sufficient safety and component lifetime are achieved while performance and component efficiency are optimized. By using the available calculation tools, such as FEM or for the fluid dynamics CFD, it is now possible to achieve compressor pressure ratios of up to 5.8 in continuous operation with single-stage turbocharging while ensuring a compact turbocharger design and aluminum compressors. The paper describes how ABB Turbo Systems Ltd has successfully developed and qualified a new single-stage high-pressure turbocharger generation with radial turbine which allows compressor pressure ratios of up to 5.8 in continuous operation at 100% engine load. First successful engine tests with the new A100 radial turbocharger generation have been carried out both on medium- and on high-speed engines. The first frame sizes of the new A100 high-pressure turbocharger series have been released for market introduction, setting a significant new benchmark for turbocharging advanced diesel and gas engines.
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