Circular rotor 1 rotates about eccentrically located fixed axis A, coinciding with the geometric axis of housing 2. Rotor 1 slides along the internal surface of housing 2. Vane 3 is connected by turning pair B to rotor 1 and slides in angular guides b of housing 2. When rotor 1 rotates, liquid is delivered in the direction of the arrows. Vane 3 of the rotor serves to separate the suction and discharge chambers.
$3837$LHP,RP$