| 摘要 |
<p>A metal leaf seal comprises a stack of vee-rings 4 of identical shape, which perform a sealing function between a housing 2 and a metal shaft 3. Upper and lower former rings 5 hold the stack of vee-rings in place. The stack of vee-rings 4 can additionally be held together by an electron beam isolation weld 7 which nevertheless allows each vee-ring 4 to flex independently. With pressure applied, a reciprocating sealing face is formed at the edges 9 of the vee-rings 4, with pressure energisation created against the face of the seal at 10 adding further load to the preloaded seal edges at 9. A static sealing interface with the housing 2 is formed at 11. <IMAGE></p> |
