Patent ID: 11933313
Assignee: WATSON MARLOW GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A pump comprising:
at least one rotor rotatable about an axis of rotation,
a pump housing surrounding the rotor, wherein a pump channel is formed between a radially inner surface of the pump housing and a radially outer surface of the rotor, and
a seal assembly sealing the pump channel to an end surface of the rotor, the seal assembly comprising:
a sliding body having a sliding surface, the sliding, body is an annular member provided on one of the rotor and the pump housing and which extends perpendicular to an axial direction of the rotor, the sliding surface is formed of a ceramic material, the ceramic material being one of a silicon carbide, SiC, sintered silicon carbide, SSiC, and tungsten carbide, TC;
a sealing sleeve having a static surface provided on the other of the rotor and the pump housing; and
a first elastomer element attached to the static surface and pressed against the sliding surface in the axial direction.