Circular rotor 1 rotates about eccentrically located fixed axis B (with respect to the geometric centre O of the rotor).Housing 2 is of oval shape with its internal surface constantly contacting rotor 1 at two opposite points, for instance, b and d. When rotor 1 rotates, housing 2 oscillates about fixed axis A. In each revolution of rotor 1, suction and discharge occur in two chambers a, separated by the rotor. Fluid is drawn in and discharged in a direction perpendicular to the plane of the drawing.
$4014$THP,GP$