METHOD OF PLOTTING GUIDE CURVE OF ROTOR OR HOUSING CYLINDRICAL SURFACE (VERSIONS) Russian patent published in 2001 - IPC

FIELD: mechanical engineering; internal combustion engines, pneumatic devices, pumps and hydraulic units. SUBSTANCE: proposed method of plotting of guide curve of rotor or housing cylindrical surface comes to the following: generating circle in X and Y coordinates system is rolled without slipping along fixed circle. Crank of four-member crank-and-rocker articulated mechanism is rigidly connected to generating circle so as to make points of crank described epitrochoids or hypotrochoids, and guide curve asymmetrical relative to axis Y of coordinate system is described by point on end of arc - trajectory of one of points of rocker of four-member crank-and-rocker articulated mechanism. EFFECT: increased efficiency. 3 cl, 15 dwg