Valve seal assembly with dual finger retainer system

Details Valve seal assembly with dual finger retainer system Valve seal assembly with dual finger retainer system

F - Mech Eng,Light,Heat,Weapons

01

L

F01L 3/08 (2006.01)

Patent

CA 2372019

A valve stem seal assembly incorporates a cylindrical valve stem seal retainer having an axis and an upper end about which symmetrically and circumferentially arranged, alternating upper and lower fingers have depending ends which lie in two distinct planes in one preferred embodiment. The lower fingers depend radially inwardly toward the axis from the cylindrical body of the retainer to provide for axial securement of an elastomeric seal body to the top of a valve guide. The upper fingers extend axially upward from the same end, in the form of a gooseneck, and are adapted to apply a circumferential, radially inwardly directed spring force to the elastomeric seal body. The upper fingers are thus effective to eliminate the garter retainer springs used with conventional seal bodies of traditional valve stem seal assemblies.

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