Throttling bushing for shaft seal

Details Throttling bushing for shaft seal Throttling bushing for shaft seal

F - Mech Eng,Light,Heat,Weapons

16

J

277/15

F16J 15/447 (2006.01) F16J 15/34 (2006.01) F16J 15/44 (2006.01)

Patent

CA 1168668

Case No. 6599 Abstract of the Disclosure An improved throttling bushing for a seal is used in a machine which has a casing and a shaft journaled in the casing. The throttling bushing reduces the flow of cooling and flushing fluid by maintainig a closer tole- rance at the throttling bushing by using a labyrinth mounted on the shaft or a sleeve attached to the shaft, and an elastic bushing attached to the casing and positioned around the labyrinth. The clearance between the elastic bushing of the labyrinth is dimentioned to provide non- contact clearance prior to assembly.

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