Patent ID: 7909336

Claim:
An arrangement of a shaft with a mechanical face seal mounted thereon, said mechanical face seal comprising a pair of cooperating seal rings having seal faces delimiting a seal gap therebetween, in which one of the seal rings is disposed on the shaft in torque transmitting relationship with a driver member mounted on the shaft, whilst the other seal ring is provided for non-rotational mounting on a stationary component, wherein the driver member comprises a tubular driver housing extending around the outer periphery of the seal ring with a continuous radial gap defined between the driver housing and the seal ring, wherein at least one passage for introducing a flow medium is provided in the shaft, said passage opening out at one end in a chamber defined by the driver housing, wherein the continuous radial gap forms an axial flow path for the flow medium, the axial flow path extending from the chamber to the seal gap such that said flow medium drains out through the radial gap.