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TECHNICAL PAPERS

Analysis, Design, and Modeling of a Rotary Vane Engine (RVE)

[+] Author and Article Information
B. V. Librovich, A. F. Nowakowski

Department of Chemical Engineering, UMIST, Po Box 88, Manchester M60 1QD, UK

J. Mech. Des 126(4), 711-720 (Aug 12, 2004) (10 pages) doi:10.1115/1.1711823 History: Received January 01, 2003; Revised October 01, 2003; Online August 12, 2004
Copyright © 2004 by ASME
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References

Setright, L. J. K., 1975, Some Unusual Engines, Mechanical Engineering Publications Limited.
Wankel, F., and Ansdale, R. F., 1965, Rotary Piston Machines: Classification of Design Principles for Engines, Pumps and Compressors, Iliffe Books, London.
Kovarsky,  N., Kaftori,  D., Gamzon,  E., and Dgani,  E., 1999, “External Combustion Wankel Engine for Solar Applications,” J. Phys. IV (9), pp. 475–480.
Shih,  A. J., 1993, “Kinematics of the Cycloidal Internal Combustion Engine Mechanism,” ASME J. Mech. Des., 115, pp. 953–959.
Ashley,  S., 1995, “A New Spin on the Rotary Engine,” Mech. Eng. (Am. Soc. Mech. Eng.), April, pp. 80–82.
Norbye, J. P., 1967, “Rivals to the Wankel: A Roundup of Rotary Engines,” Popular Science, pp. 80–85, Jan.
Litvin, F. L., 1994, Gear Geometry and Applied Theory, Prentice Hall.
Librovich,  B. V., “Dynamics of Rotary Vane Engine,” ASME J. Mech. Des., 125, pp. 498–508
Tong,  S.-H., and Yang,  D. C. H., 1998, “Generation of Identical Non-circular Pitch Curves,” ASME J. Mech. Des., 120, pp. 337–341.
Chang,  S.-L., and Tsay,  C.-B., 1998, “Computerized Tooth Profile Generation and Undercut Analysis of Non-circular Gears Manufactured With Shaper Cutters,” ASME J. Mech. Des., 120, pp. 92–99.
Bronshtein, I. N., and Semendyayev, K. A., Handbook of Mathematics, Springer-Verlag Berlin and Heidelberg GmbH & Co.

Figures

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Scheme of a work unit of rotary internal combustion engine (RVE). The work unit of a RVE consists of a cylinder with appropriate intake and exhaust ports and two vane-pairs, which can rotate around the axis of the cylinder.
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Scheme of a single work unit RVE
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Scheme of a dual unit RVE
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The variable pressure angle, αv, for non-circular gears can be expressed as αvc−μ+π/2
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Schematic structure of gear mechanism between vane-pair and idler cog-wheels
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Graphical presentation of inequality (14). Three different cases are presented: a) D=B2−4AC<0,b) D>0 and z1>1,c) D>0 and z2<−1.
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Graphical representation of the right hand side of inequalities (18) and (20). With an increase in parameter av the allowed region for αc is decreasing.
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Cross section of supporting sleeve together with idler shaft. For modeling of the friction force, Ffs, Coulomb model is used.
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Graphical representation of the left hand side of inequalities (31) and (32)
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Angular velocitys of flywheels as a function of time for engines with different number of work units (curve a–one unit engine, curve b–two unit engine, curve c–four unit engine and curve d–one unit engine with friction)
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Gas torques in one unit engine as function of time. In our model combustion is instanteneous process, therefore the gas torque has discontinuities at the transition points.
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Power loses due to friction in different parts of one unit engine
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Total reaction force on the supporting sleeve as function of time. Total reaction force has discontinuity due to sharp increse of pressure in the combustion chambers.

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