Shaft seal

Details Shaft seal Shaft seal

F - Mech Eng,Light,Heat,Weapons

04

C

277/16

F04C 27/00 (2006.01) F16J 15/34 (2006.01) F16J 15/40 (2006.01)

Patent

CA 1247159

A b s t r a c t: A shaft seal for a gas pumping device comprising a mechanical seal (5,6) and a labyrinth seal in form of a sliding bearing (4). A chamber (7) between the mechanical seal and the sliding bearing is fed with lubricant for the bearing at a pressure being higher than the gas pressure on the other side of the mechanical seal so that there is no leakage of gas past the mechanical seal.

469006

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