A lip seal

Details A lip seal A lip seal

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 15/32 (2006.01) F16N 1/00 (2006.01)

Patent

CA 2462060

-15- A lip seal comprises resilient annular sealing means 2, 3, having a sealing lip 4 adapted for sealing engagement at an end 9 thereof with a relatively movable shaft 5 and a valve lip 6, the lips being, in use, normally closed, and means 11, 13, for injecting fluid into a space 7 between the closed lips 4, 6 at sufficient pressure to cause the lips to open during use to allow the fluid to flow towards the end 9 of the sealing lip 4.

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