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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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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