Circular rotor 1 rotates about eccentrically located fixed axis A, coinciding with the geometric axis of housing 2. Abutments 3 and 4 reciprocate in fixed guides a of housing 2 and are held against rotor 1 by means of springs (not shown). When rotor 1 rotates, fluid is delivered in the directions of the arrows. Abutments 3 and 4 divide the pump into two chambers so that the process of suction and discharge is repeated twice for each revolution of rotor 1.
$4013$THP,GP$