Patent ID: 7988411

Claim:
A rotary pump for a fluid with a radial sealing gap between stator parts and a rotor, with at least one wear ring being provided at the sealing gap, wherein the wear ring is fastened to one of the stator parts via an elastically deformable fastening part, wherein the fastening part has two sides in an axial direction and is connected to the stator part on one side and, on this side, a radial gap is formed between an outer jacket surface of the wear ring and the fastening part, with the wear ring being moveable in the radial direction with respect to the fastening part on this side, and wherein the fastening part is connected on its other side to the wear ring, with another radial gap being formed on this other side between an outer jacket surface of the fastening part and the stator part and wherein on the axial side where the fastening part is connected to the stator part, the fastening part is not connected to the wear ring.