Circular rotor 1 rotates about fixed axis A, eccentrically located with respect to the geometric axis of housing 2. Rotor 1 has three symmetrical radial slots in which three cylindrical disks 3 freely slide. When rotor 1 rotates, disks 3 are held constantly against the internal surface of housing 2 by centrifugal force and deliver lihquid in the direction of the arrows.
$3820$LHP,RP$