Circumferentially compressed piston ring assembly and method

Details Circumferentially compressed piston ring assembly and method Circumferentially compressed piston ring assembly and method

F - Mech Eng,Light,Heat,Weapons

16

J

277/30

F16J 9/06 (2006.01) F16J 9/14 (2006.01) F16J 9/28 (2006.01)

Patent

CA 1104604

ABSTRACT A sealing assembly especially adapted for high pressure hydraulic applications includes a circumferentially compressible seal ring having stepped overlapping ends and a resilient expander, preferably of oval cross-section, which assists in urging the compressed seal ring into sealing communication with the thus sealed surfaces. The seal ring is manufactured with an oversized closed gap condition from a filled synthetic material having a modulus of elasticity sufficient to permit compression thereof when the seal ring is installed between the thus sealed surfaces. The ring may optionally include a secondary resilient sealing member positioned between the axial, internal surfaces of the steps.

303311

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