Bi-directional self-retaining cylindrical surface seal

摘要

A seal for sealing between two mating faces that are curved. The seal includes a groove formed in one of the faces for encircling a passageway that terminates at the face. The groove has a depth that varies along the diameter of the groove with the curvature of the face. The base or bottom of the groove is located in a single plane. An elastomeric seal ring is located in the groove. The seal ring also has a variable cross-sectional thickness that varies around the diameter of the ring corresponding to the depth of the groove. The seal ring has an annular band that fits within a counterbore in the groove to retain the seal ring.