| 摘要 |
A mechanical seal 10 provides a fluid tight seal between relatively rotatable elements such as a drive shaft and a housing. The seal includes first and second seal faces ( 13, 11 ) and transmission means ( 27 ) which engage said second seal face and extend axially therefrom in a direction away from said first seal face. Biasing means ( 28 ) bias the transmission means, and thereby the second seal face, towards the first seal face. Drive means ( 29 ) engage the transmission means and are for mounting in driving engagement with the second element. The drive means include at least one radially extending engagement portion ( 30 ) which extends into an axially enclosed opening ( 31 ) in the transmission means.
|
