Patent ID: 9651042
Date: 2017-05-16
CPC Classifications: F01C,F04C

Claim:
1. A displacement pump comprising a pot-shaped housing, a rotor swivel-mounted in the housing and at least one blade guided movably inside the rotor, wherein the blade tip contacts an inner peripheral wall of the housing and divides an internal space into chambers when the displacement pump is operating, and wherein a locking mechanism inhibits the displacement of the blade inside the rotor, wherein the locking mechanism engages the blade tractionally or frictionally, and a control element is located on the side of the housing which is moveable in axial direction via a drive system and which actuates the locking mechanism, wherein a rotation decoupling and an axial movement coupling are provided between the control element and the locking mechanism for decoupling rotational movement in the axial direction of the locking mechanism in relation to the control element on the side of the housing.