Patent ID: 9482292
Filing Date: 2016-11-01
CPC Classification: F16D,F16J

Claim Text:
1. A piston-integrated seal comprising: a seal lip which is integrally provided in a clutch piston of a hydraulic clutch and is directed to a hydraulic chamber side, wherein the seal lip is structured such that a main seal edge portion on a hydraulic chamber side of the seal lip and a sub seal edge portion on an anti-hydraulic chamber side of the seal lip are formed in a sliding portion in relation to another sliding surface, wherein the main seal edge portion has a first inclined surface on the hydraulic chamber side and a second inclined surface on the anti-hydraulic chamber side and is structured such that; wherein the sub seal edge portion has a third inclined surface on the hydraulic chamber side and a fourth inclined surface on the anti-hydraulic chamber side and is structured such that: