Patent ID: 9663084
Date: 2017-05-30
CPC Classifications: B60T,F04C

Claim:
1. A rotating pumping apparatus comprising: a rotating pump; a shaft which drives the rotating pump; a casing which has formed therein a hole in which the shaft extends and rotates, the casing also including a stopper wall which extends inside the hole; a sealing member which is equipped with a ring and an elastic seal fit on the ring and disposed around the shaft to create a hermetical seal between an inner periphery of the hole and an outer periphery of the shaft; and a pressure member which includes a plate spring, a first rotation stopper, and a second rotation stopper, the plate spring working to elastically press the sealing member against the stopper wall of the casing to stop the sealing member from moving in an axial direction of the shaft, the first rotation stopper serving to stop the pressure member from rotating following rotation of the shaft, the second rotation stopper serving to engage the ring to stop the sealing member from rotating following the rotation of the shaft.