| 摘要 |
There is disclosed a seal formed by a seal housing having an annular chamber, a shaft extending therethrough and an annular sealing element disposed within the chamber and partitioning it into a plurality of annular spaces, the sealing element being rigid but compressible and engaging the wall of the chamber radially spaced from the shaft as well as the shaft and said sealing element being provided with fluid passages such that when compressive forces are placed upon the element, the fluid pressure on all sides of said element are equalized.
|
