Patent ID: 8141881
Filing Date: 2012-03-27
Classification: F16J

Abstract:
1. A seal for sealing a first machine component with respect to a second machine component, the first machine component having a sealing surface and the second machine component having a groove facing the sealing surface, wherein the first and the second machine components move relative to each other, the seal having a seal body comprising: a retaining part disposed towards a groove base of the groove; a sealing part disposed in the groove facing the sealing surface; a resilient connector part disposed between said sealing part and said retaining part; means defining a first recess disposed radially between said retaining part and said connector part; means defining a second recess disposed radially between said connector part and said sealing part; and groove wall spacer elements constituted as interrupted ribs extending about the seal body and projecting radially into said second recess, wherein interruptions between adjacent said ribs define pressure equalization ducts extending axially in the second recess and radially at a side surface of the sealing ring.