TY - JOUR
AU - Molnár, Emil
AU - Szirmai, Jenő
PY - 2009
Y2 - 2023/02/08
TI - Generalized polygonal Wankel engines
JF - Periodica Polytechnica Transportation Engineering
JA - Period. Polytech. Transp. Eng.
VL - 37
IS - 1-2
SE -
DO - 10.3311/pp.tr.2009-1-2.05
UR - https://pp.bme.hu/tr/article/view/1856
SP - 29-32
AB - The trigonal Wankel engine is kinematically based on the motionwhere a circle <I>p<sub>m</sub></I> of radius 3<I>d</I>, as the moving pole curve, rolleson the circle <I>p<sub>s</sub></I> of radius 2<I>d</I>, as the standing pole curve in theinterior. Then the regular trigonal rotor with circumcircle of radius<I>ρ > 3d</I>, fixed concentrically to the moving pole circle, describes itsorbit curve <I>c<sub>ρ</sub></I> This orbit curve <I>c<sub>ρ</sub></I> is crutial in forming theengine space.Answering a question of István Revutzky, we prove (andanimate by computer) that <I>c<sub>ρ</sub></I> is a convex curve iff <I>\rho </I> bigger orequal to 9<I>d</I>. The parallel curve <I>c<sub>ρ+r</sub></I> with distance <I>r</I> will be thesolution to the engine space if the triangle rotor touches <I>c<sub>ρ+r </sub></I> withsmall roller circles of radius <I>r</I> centred in the vertices of the triangle.All these concepts will be generalized - with animation - to ak-gonal rotor (2 < k natural number) in a unified way.
ER -