Packing seal assembly for use with reciprocating cylindrical...

Details Packing seal assembly for use with reciprocating cylindrical... Packing seal assembly for use with reciprocating cylindrical...

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 15/56 (2006.01)

Patent

CA 2427785

Axially spaced, pressure-energized seals in a sealing assembly are carried in a conventional seal assembly housing. The seals surround a rod that reciprocates through the housing to power a fluid pump. The seals are pressure-energized by a flowable sealant that is injects through the housing into a confined annular area defined between the seals. The sealant maintains warn seals in close scaling engagement with the reciprocating rod to prevent fluid or pressure loss from the pump. The sealant pressure resists the repeated flexing stresses exerted by the axial rod movement to minimize seal fatigue wear. Components of the seal assembly may be split to permit seal repair or replacement without requiring the removal of the rod from the assembly. The pressure and composition of the flowable, injectable sealant cooperate with the split seal assembly components to prevent leakage across the seal component splits.

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