Patent ID: 8210836
Filing Date: 2012-07-03
Classification: F04C

Abstract:
1. A vane cell pump comprising an external rotor, an inner rotor and a plurality of vanes, which are displaceably mounted in a radial manner in essentially radial slots in the inner rotor and which are secured in a pivotable manner on the external rotor and the external rotor is guided along the inner circumferential surface of a stator, where the axis of the stator and the axis of the inner rotor are offset in relation to one another and where the stator can be adjusted in a radial direction in relation to the inner rotor thereby allowing the offset to be modified, and the stator is partially enclosed by a clamp which is mounted in a pivotable bearing in the housing of the vane cell pump, characterized by the fact that the clamp comprises clamp arms which protrude on both sides of the pivotable bearing to partly enclose, respectively, the stator, the clamp arms being discontinuous by having free ends that comprise piston surfaces for a pressure medium, in which pressure chambers are formed between the pivotable bearing and the piston surfaces, wherein the piston surfaces are displaceably mounted in guides provided in the housing of the vane cell pump.