Seals

Details Seals Seals

F - Mech Eng,Light,Heat,Weapons

16

J

277/27

F16J 15/16 (2006.01) F16J 15/00 (2006.01)

Patent

CA 2021935

ABSTRACT A seal includes a primary seal arranged to provide a fluid tight seal between a shaft and housing and an auxiliary sealing device having a running clearance when the primary seal is operating normally but impeding flow of fluid upon failure of the primary seal. A drain is provided to the space between the primary seal and auxiliary sealing device and an annular element is mounted upon shaft, intermediate of the primary seal and auxiliary sealing device, for rotation with the shaft. The annular element is provided with vanes which induce flow of fluid past the auxiliary sealing device into the space and out through the drain.

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