| 摘要 |
A self contained anti-blowout seal includes a seal jacket (54) having a static seal surface (56) and a dynamic seal lip (58)with a cavity (60) therebetween. A retaining ring (62) is provided and disposed, in part, eithin a cavity of the seal jacket and proximate the static seal surface for pressing the static seal surface against a mounting surface. The retaining ring includes a surface extending outside the cavity for bearing against a mounting surface and a depending portion (70) is provided which extends over the cavity opening and includes at least one port (76) communicating with the cavity for enabling a seal medium to enter and exit the cavity as the seal is pressure energized. A biasing element (84) is provided and disposed in the cavity for forcing the dynamic seal lip against member (82). |
