Relevant bibliographies by topics / Novel rotary engine

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Novel rotary engine'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

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Journal articles on the topic "Novel rotary engine"

1

Wang, J. H., D. J. Lu, Zhuang De Jiang, and X. N. Chen. "A Novel Micro Sliding Rotary Engine." Key Engineering Materials 339 (May 2007): 183–88. http://dx.doi.org/10.4028/www.scientific.net/kem.339.183.

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In recent years, there is an effort to develop a portable, autonomous micro power generation system to obtain an order of magnitude improvement in energy density over general alkaline or lithium ion batteries. As hydrocarbon fuels have much higher energy to weight ratios than general batteries, researches to realize micro-engines fueled by such hydrocarbon fuels are carried out in some universities or institutes. The first key problem of the researches is how to get a micro-engine structure suitable for MEMS (Micro-Electro Mechanical Systems) fabrication. This micro-engine structure needs characteristics such as planar geometry, self-valving operation and a minimal number of moving parts and so on. In this paper, a micro sliding rotary type combustion engine structure is presented and described. The intrinsic characteristics of the engine housing curve named of “kindred cardioids curve” are described in details. The structural scheme and cycle process of the micro-engine are discussed. Some performance parameters of the micro engine are theoretically calculated with H2-Air mixture and specified geometry parameters. The primitive calculated results indicate that the sliding rotary combustion engine is workable and effective.
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Librovich, B. V. "Dynamics of Rotary Vane Engine." Journal of Mechanical Design 125, no. 3 (September 1, 2003): 498–508. http://dx.doi.org/10.1115/1.1582500.

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This paper broadly discusses aspects of the novel Rotary Vane Engine (RVE). It also considers, in detail, the geometrical structure of work unit and the entire engine. The rigorous mathematical description of work unit and torque transmission mechanism are presented for a first time in literature. Although the RVE is a simple structure possessing a small number of moving parts, it is this property that provides the RVE with an important advantage when compared to a usual reciprocating engine. The main idea is to use noncircular gears in torque transmission mechanism together with Kauertz-Virmel work unit. It is found that the rotary engine can produce almost constant angular velocity of the flywheel, which would result in an efficient and smooth performance.
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Mirzaei, M., S. M. Hashemi, B. Saranjam, and A. Binesh. "Two-Zone Simulation of an Axial Vane Rotary Engine Cycle." International Journal of Applied Mechanics and Engineering 26, no. 2 (June 1, 2021): 143–59. http://dx.doi.org/10.2478/ijame-2021-0024.

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Abstract An axial vane rotary engine (AVRE) is a novel type of rotary engines. The engine is a positive displacement mechanism that permits the four “stroke” action to occur in one revolution of the shaft with a minimum number of moving components in comparison to reciprocating engines. In this paper, a two-zone combustion model is developed for a spark ignition AVRE. The combustion chamber is divided into burned and unburned zones and differential equations are developed for the change in pressure and change in temperature in each zone. The modelling is based on equations for energy and mass conservation, equation of state, and burned mass fraction. The assumption is made that both zones are at the same pressure P, and the ignition temperature is the adiabatic flame temperature based on the mixture enthalpy at the onset of combustion. The developed code for engine simulation in MATLAB is applied to another engine and there is a good agreement between results of this code and results related to the engine chosen for validation, so the modelling is independent of configuration.
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Gorla, R. S. R., and T. A. Bartrand. "Couette Flow Heat Loss Model for the Rotary Combustion Engine." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 210, no. 6 (November 1996): 587–96. http://dx.doi.org/10.1243/pime_proc_1996_210_233_02.

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A novel model for predicting heat transfer in a rotary engine was formulated and implemented in a zero-dimensional engine performance model. Results were compared with a commonly used intermittent combustion engine heat transfer model and with results from a three-dimensional simulation of flow within a rotary engine. When squish effects associated with fluid motion within the chamber were included, the Couette flow model reproduced peak heat transfer rates and timing for the peak heat transfer rate was better than that of the commonly used heat transfer model. Previously, rotary engine performance models have employed flat plate type heat transfer correlations. These correlations, though useful, do not model the flow physics in the rotary engine faithfully. Rather than flow over a flat plate, flow in the rotary engine was approximated as turbulent Couette flow. The Couette model was altered to account for centre-line velocities higher than half the rotor speed. There are two advantages to using the Couette flow model. Firstly, as noted, the underlying physics of the Couette flow model is closer to conditions in the rotary engine. Secondly, with the Couette flow model it is possible to differentiate between the rotor and housing heat transfer coefficients.
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Librovich, B. V., and A. F. Nowakowski. "Analysis, Design, and Modeling of a Rotary Vane Engine (RVE)." Journal of Mechanical Design 126, no. 4 (July 1, 2004): 711–20. http://dx.doi.org/10.1115/1.1711823.

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This paper introduces a mathematical model to analyze the dynamic behavior of a novel rotary vane engine (RVE). The RVE can be considered to have a number of advantages when compared to a majority of other reciprocating engine types. The advantages are found in the simple structure and the small number of moving parts. In this paper the geometrical structure and dynamical behavior of engines with a different number of work units is considered in detail. This has been examined through a study of torque transmission with a particular reference to how this is affected by the noncircular geometry of gear pitch curves. Using the Coulomb friction model, consideration has been given to the mechanical power loss due to friction in different parts of the engine, which must be taken into account. The study also proposes a possible method for balancing of asymmetric cogwheels. The analysis concludes that by using an appropriate design and arrangement of cogwheels and all moving parts, vibration can be attenuated due to impulsive gas torque.
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Savvakis, Savvas, Dimitrios Mertzis, Elias Nassiopoulos, and Zissis Samaras. "A Design of the Compression Chamber and Optimization of the Sealing of a Novel Rotary Internal Combustion Engine Using CFD." Energies 13, no. 9 (May 9, 2020): 2362. http://dx.doi.org/10.3390/en13092362.

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The current paper investigates two particular features of a novel rotary split engine. This internal combustion engine incorporates a number of positive advantages in comparison to conventional reciprocating piston engines. As a split engine, it is characterized by a significant difference between the expansion and compression ratios, the former being higher. The processes are decoupled and take place simultaneously, in different chambers and on the different sides of the rotating pistons. Initially, a brief description of the engine’s structure and operating principle is provided. Next, the configuration of the compression chamber and the sealing system are examined. The numerical study is conducted using CFD simulation models, with the relevant assumptions and boundary conditions. Two parameters of the compression chamber were studied, the intake port design (initial and optimized) and the sealing system size (short and long). The best option was found to be the combination of the optimized intake port design with the short seal, in order to keep the compression chamber as close as possible to the engine shaft. A more detailed study of the sealing system included different labyrinth geometries. It was found that the stepped labyrinth achieves the highest sealing efficiency.
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Ertesvåg, I. S. "Analysis of the Vading concept-a new rotary-piston compressor, expander and engine principle." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 216, no. 3 (May 1, 2002): 283–90. http://dx.doi.org/10.1243/095765002320256909.

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A novel concept for rotary machines is described. A rotor is positioned acentrically in a cylindrical cavity. One or more (typically, three or four) vanes slide radially in slots in the rotor. The vanes are connected to an axle such that the tip of a vane follows the internal surface of the housing without touching it. It is shown how the concept can be utilized in the design of compressors, expanders, and internal combustion engines. A thermodynamic model is formulated for the engine process, and calculations for a chosen set of geometrical data are presented. It is concluded that the machine can be described mathematically, and that it can work as claimed by the inventor, Kjell Vading. Some potential advantages over other concepts are discussed.
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Khani, Mohammadreza, and Ghazaleh Esmaeelzade. "Three-dimensional simulation of a novel rotary-piston engine in the motoring mode." Propulsion and Power Research 6, no. 3 (September 2017): 195–205. http://dx.doi.org/10.1016/j.jppr.2017.07.005.

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Gao, Jianbing, Guohong Tian, Phil Jenner, Max Burgess, and Simon Emhardt. "Preliminary explorations of the performance of a novel small scale opposed rotary piston engine." Energy 190 (January 2020): 116402. http://dx.doi.org/10.1016/j.energy.2019.116402.

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Fu, Lung Ming, Wen Teng Wang, and Chia Yen Lee. "Design and Fabrication of PDMS/PMMA-Based Rotary Micropump." Applied Mechanics and Materials 829 (March 2016): 29–34. http://dx.doi.org/10.4028/www.scientific.net/amm.829.29.

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A novel micropump is proposed comprising a PMMA-based rotor, a circular PDMS micro-chamber, and a semi-circular PDMS microchannel connecting the inlet and outlet reservoirs as the rotor spins, a plug of sample fluid is trapped within the microchannel between neighboring blades of the rotor and is driven through the channel toward the outlet. Meanwhile, the rotors periodically compress and release the inlet and outlet regions of the microchannel. Thus, as the rotor turns, one plug of sample fluid is drawn into the microchannel as another is ejected into the outlet reservoir. In other words, a peristaltic pumping effect is achieved. It is shown that the flow rate in the proposed device can be controlled simply by adjusting the rotational velocity of the rotor. A maximum flow rate of 1.22 ml/min is obtained given de-ionized water as the working fluid and a rotational velocity of 232 rpm. Moreover, given the same rotational velocity, flow rates of 0.724 ml/min and 0.336 ml/min are obtained for salad oil and engine oil, respectively.
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Dissertations / Theses on the topic "Novel rotary engine"

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Ercan, Taylan. "Thermodynamic And Structural Design And Analysis Of A Novel Turbo Rotary Engine." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606482/index.pdf.

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A novel turbo rotary engine, operating according to a novel thermodynamic cycle, having an efficient compression phase, a limited temperature combustion phase followed by a long power extraction phase is designed. Thermodynamic and structural design and analysis of this novel engine is carried out and two prototypes are manufactured according to these analysis. High performance figures such as torque, power and low specific fuel consumption are calculated. Also the component tests of the manufactured prototypes are completed and their results are demonstrated.
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Amirian, Hossein. "Design of a novel rotary compact power pack for the series hybrid electric vehicle : design and simulation of a compact power pack consisting of a novel rotary engine and outer rotor induction machine for the series hybrid electric vehicle powertrain." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4446.

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Hybrid electric vehicles significantly reduce exhaust emissions and increase fuel economy. Power packs are the most fundamental components in a series powertrain configuration of a hybrid vehicle, which produce the necessary power to run the vehicle. The aim of this project is to design a compact power pack for a series hybrid vehicle, using virtual prototyping. The hybrid electric vehicle characteristics and configurations are analysed, followed by an explanation of the principles of induction machines. A new type of rotary induction machine with an outer rotor construction is designed to be coupled with the novel rotary internal combustion engine with rotating crankcase in order to form the compact power unit for the hybrid vehicle. The starting and generation performance of the designed machine is analysed by an electric machine simulator, called JMAG. ADVISOR software is studied and utilised to simulate the overall vehicle performance, employing different categories of power packs in the powertrain. Results show that the proposed compact power pack has the best performance in terms of fuel economy, emissions and battery charging compared to the existing power unit options. Over the city cycle, fuel economy is increased by up to 47 % with emission reduced by up to 36 % and over the highway cycle, fuel economy is increased by up to 69 % with emission reduced by up to 42 %.
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Murphy, Braden A. "DESIGN AND DEVELOPMENT OF A NOVEL TOROIDAL PNEUMATIC MOTOR." 2012. http://hdl.handle.net/10222/15818.

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A novel toroidal pneumatic motor (rotary actuator or rotary engine) has been developed and tested. The motor is designed with a ring torus (or revolved circular cross-section) working chamber, which is formed by two rotors and sections of a casing (or stator). The rotors are designed with an equal number of pistons, an arrangement of one-way bearings (to transfer torque from the rotors to a common drive shaft), and an impact mechanism to operably control the positioning of the rotors relative to ports located within the stationary casing. This design is aimed at improving the power density (power per unit mass), efficiency and torque output at low shaft speeds, when compared to conventional vane motors. Dynamometer test results are presented, showing the torque output of the motor with compressed air supply pressures of 10 to 80 psi at 10 psi increments.
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"THERMODYNAMIC AND STRUCTURAL DESIGN AND ANALYSIS OF A NOVEL TURBO ROTARY ENGINE." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606482/index.pdf.

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Book chapters on the topic "Novel rotary engine"

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Wang, J. H., D. J. Lu, Zhuang De Jiang, and X. N. Chen. "A Novel Micro Sliding Rotary Engine." In Progress of Precision Engineering and Nano Technology, 183–88. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-430-8.183.

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Hammersley, Rachel. "The Rota Club." In James Harrington, 249–59. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198809852.003.0014.

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Chapter 14 offers a novel and comprehensive account of the Rota Club, established by Harrington in the autumn of 1659. As well as seizing the opportunity for political speculation, the Rota Club took Harrington’s experimentation with form to a new level. It provided a means of putting into practice two of the more controversial elements of Harrington’s programme: open and inclusive membership of the citizen body, and the debating and balloting procedure. By welcoming members with diverse political and religious views to the Club, and encouraging them to engage in political debate in a peaceful and constructive manner, Harrington was showing that inclusive citizenship would not automatically lead to chaos. By instituting a formal system of debate and the use of a balloting box, Harrington was providing an opportunity for people to experience the controversial decision-making procedure he had described in Oceana.
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Conference papers on the topic "Novel rotary engine"

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Savvakis, Savvas, Vasilis Gkoutzamanis, and Zissis Samaras. "Description of a Novel Concentric Rotary Engine." In WCX World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2018. http://dx.doi.org/10.4271/2018-01-0365.

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Akmandor, Ibrahim Sinan, Taylan Ercan, and Mehmet Karaca. "Turbo-Rotary Compound Engine (TRCE) and Novel Thermodynamic Cycle." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68234.

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The present paper proposes a new turbo-rotary compound engine (TRCE) and an associated novel thermodynamic cycle. In this engine, shafts linking customary gas turbine engines components such as axial compressors and axial turbines are eliminated. Instead, two or multiple spools are lined up in series within the engine. In the front spool, partial admission rotary vane type turbines drive axial compressor stages. In the back spool, axial turbine stages drive partial admission rotary vane type compressors. Two air streams feed separately the customary turbo components and the rotary vane components, respectively. Accordingly, the primary high mass flow through the axial compressors and turbines is mainly responsible for the generation of net engine thrust and power, where as the secondary, low mass flow through the partial admission rotary components is mainly used to generate the internal energy required to power the axial compressor stages. The energy consumed internally by the engine is minimized because less input shaft power is needed for the rotary vane compressors and higher inlet temperatures and less cooling can be tolerated by the intermittent combustion rotary vane turbines. The result is a radical improvement in both efficiency and net power output. Aerothermodynamics and spool matching calculations comparing a T56-A14 core with a TRCE of similar size and compression ratio show that the new engine provides superior performance characteristics by increasing the net output work by 100% and decreasing the specific fuel consumption by 20%.
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Zhang, Changchun, Doug Free, and Derreck Keith. "Fundamental Study of Kinematics of a Novel Rotary Engine." In SAE 2000 World Congress. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2000. http://dx.doi.org/10.4271/2000-01-1027.

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Asfar, K. R., and S. M. Al-Dowiri. "Performance of Sl Engine Using a Rotary-Disk Novel Carburetor." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1996. http://dx.doi.org/10.4271/960088.

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Heppner, Joshua D., David C. Walther, and Albert P. Pisano. "Leakage Flow Analysis for a MEMS Rotary Engine." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-41868.

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An internal leakage flow analysis is presented for a MEMS fabricated rotary engine in order to establish design parameters for micro engine sealing systems. This research is part of the MEMS Rotary Engine Power System (REPS) group effort to develop a portable power system based on an integrated generator and Wankel rotary internal combustion engine. In order to have acceptable system efficiency, it is necessary to suppress internal leakage and thereby maintain a critical level of compression ratio. There are two inherent leakage paths in rotary engines, which result in blowby and reduced compression ratio: leakage around the apexes of the rotor and leakage across the rotor faces. These sealing issues arise due to the large pressure gradients, which occur along these leakage paths in the combustion chamber. It is the aim of this work to examine the effects of reduced scale on both traditional and novel rotary engine apex sealing mechanisms. In contrast to the macro scale, viscous forces have an increased importance in micro scale engines since Re~.01. A simplified Poiseuille-Couette flow model has been developed to analyze the leakage flows of rotary type engines. Since the Reynolds number for the MEMS REPS is extremely small, the model assumes that the flow is laminar, viscous, incompressible, and steady with air as the working fluid. The model indicates that if a 1 μm gap can be maintained between the housing and moving parts (rotor apexes and faces), leakage flows at expected engine operation speeds will only reduce the compression ratio from 8.3:1 to 6.1:1 so long as the rotation speed is greater than 10,000 rpm. It is doubtful that a traditional or simple micromachine design will yield such a gap and therefore several novel, integrated sealing approaches are under investigation. The model will determine design specification for one of these approaches, an integrated cantilever flexure apex. In conjunction with the theoretical model, a scaled engine experiment at the macro scale is used to verify the modeling effort. The scaling of the experiment complies with Reynolds scaling and ensures that Hele-Shaw flow within the leakage paths is maintained. The experiment does not operate as a functional engine, rather the experiment is designed to maintain a precise clearance between the rotor and housing. In order to preclude additional pressure driven flow effects, an electric motor is used to spin the rotor and simulate the rotation expected due to the combustion pressure acting on the rotor face.
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Turner, James, Reza Islam, Giovanni Vorraro, Matthew Turner, Sam Akehurst, Nathan Bailey, and Shaun Addy. "Investigations into Steady-State and Stop-Start Emissions in a Wankel Rotary Engine with a Novel Rotor Cooling Arrangement." In 15th International Conference on Engines & Vehicles. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2021. http://dx.doi.org/10.4271/2021-24-0097.

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Blank, David A. "Hydrogen Combustion in a Novel Rotary DI-HCRI Engine with Low Heat Rejection." In SAE World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2007. http://dx.doi.org/10.4271/2007-01-1254.

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Rashad, Muhammad I., Hend A. Faiad, and Mahmoud Elzouka. "Modeling of a New Crank-Less Rotary Heat Engine Concept for Solar Power Utilization." In ASME 2018 Power Conference collocated with the ASME 2018 12th International Conference on Energy Sustainability and the ASME 2018 Nuclear Forum. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/power2018-7374.

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This paper presents the operating principle of a novel solar rotary crank-less heat engine. The proposed engine concept uses air as working fluid. The reciprocating motion is converted to a rotary motion by the mean of unbalanced mass and Coriolis effect, instead of a crank shaft. This facilitates the engine scaling and provides several degrees of freedom in terms of structure design and configuration. Unlike classical heat engines (i.e. Stirling), the proposed engine can be fixed to the ground which significantly reduce the generation unit cost. Firstly, the engine’s configuration is illustrated. Then, order analysis for the engine is carried out. The combined dynamics and thermal model is developed using ordinary differential equations which are then numerically solved by Simulink™. The resulting engine thermodynamics cycle is described. It incorporates the common thermodynamics processes (isobaric, isothermal, isochoric processes). Finally, the system behavior and performance are analyzed along with studying the effect of various design parameters on operating conditions such as engine speed, output power and efficiency.
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Martinez, Fabian C., Aaron J. Knobloch, and Albert P. Pisano. "Apex Seal Design for the MEMS Rotary Engine Power System." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42071.

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Design, modeling, and analysis of a novel in-plane cantilever apex seal for maintaining high compression ratios in a MEMS-based rotary internal combustion engine are presented. This work is part of an effort to create a portable, MEMS-based Rotary Engine Power System (MEMS REPS) capable of producing power on the order of tens of milliwatts and with an energy density better than that of a conventional battery. A Wankel-type rotary engine is advantageous for a MEMS-based internal combustion engine due to its planar geometry, self-valving operation, and few moving parts. Large scale rotary engines typically incorporate a complex apex and face sealing system composed of many parts and involved assembly. A MEMS-based apex seal system can be incorporated as part of the rotor in order to eliminate manual assembly. The seal system must also have a minimal footprint and closely follow the epitrochoid profile in order to effectively integrate with the other engine systems. Based on these objectives, an integrated in-plane cantilever apex seal system can be integrated into the rotor with a small footprint. The first step in the development of the MEMS REPS is an air-powered expander which can be used to demonstrate electrical generator operation, engine rotation, and apex seal operation. The apex seals discussed here are optimized for use in an air-powered expander. A performance analysis of this flexure apex seal design is performed which examines 4 major performance constraints: resonant frequency, strain, pressure, and power dissipation. In addition, the seal design also accounts for fabrication tolerances of thick deep reactive ion etching (DRIE). During operation, dynamic effects due to combustion process and mechanical translation may drive the flexures into resonance, leading to galloping of the cantilever tips. Galloping will result in large leakage paths, thereby, reducing the compression ratio. A 0.25% strain limit is imposed to minimize the effect of fatigue on seal performance. Pre-compressed apex seals are used to counteract forces generated on the apex seal due to a pressure differential. The apex seal is also designed to minimize the power dissipated due to frictional losses. To model the cantilever apex seal, two different loading conditions are examined. One condition is distinguished by point loading at the tip, when contact is made between the seal and housing wall. Another condition is characterized by a distributed loading, due to the changing pressure by both the compression and the combustion events. Analytical models in addition to a finite element analysis were performed.
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Librovich, B. V., and A. F. Nowakowski. "Dynamic Behaviour of Rotary Vane Engines With One, Two and Four Work Units." In ASME 7th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2004. http://dx.doi.org/10.1115/esda2004-58608.

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A mathematical model to analyse the dynamic behaviour of a novel rotary vane engine (RVE) is introduced in this paper. The RVE have a number of advantages compare to a majority of other reciprocating engine types. The main advantages are a simple structure and the small number of moving parts. The geometrical structure and dynamical behaviour of engines with a different number of work units is considered in detail. This has been examined through a study of torque transmission with a particular reference to how this is affected by the non-circular geometry of gear pitch curves. A possible method for balancing of asymmetric cogwheels have been proposed as well. The analysis concludes that by using an appropriate design and arrangement of cogwheels and all moving parts, vibration due to impulsive gas torque can be attenuated.
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