High pressure rotary shaft seal

Details High pressure rotary shaft seal High pressure rotary shaft seal

F - Mech Eng,Light,Heat,Weapons

16

J

277/40

F16J 15/26 (2006.01) F16J 15/18 (2006.01)

Patent

CA 1301208

ABSTRACT A seal assembly for a shaft comprises one or more annular sealing elements having an initial inter- nal diameter larger than the diameter of the shaft. The elements are deformed by a pair of annular backup rings disposed on opposite sides thereof. The backup rings have opposed axially extending undulations therein for effecting axial deformation and radial contraction of the sealing elements upon advancement of the backup rings toward one another.

531737

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