Integral spring piston ring

Details Integral spring piston ring Integral spring piston ring

F - Mech Eng,Light,Heat,Weapons

02

F

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F02F 5/00 (2006.01) B23P 15/06 (2006.01) F16J 9/00 (2006.01) F16J 9/06 (2006.01) F16J 9/20 (2006.01)

Patent

CA 1053720

INTEGRAL SPRING PISTON RING Abstract of the Disclosure A one-piece annular oil control piston ring for internal combustion engines is adapted to be received with a peripheral groove in a piston. The ring is of generally U-shaped cross section defined by a pair of opposed sidewalls which project inwardly of the ring from a central peripheral wall thereof. A pair of scraper rims projects outwardly of the ring from the outer face of the peripheral wall. Spring members are cut from the peripheral wall and project between the sidewalls inwardly of the ring a distance sufficiently inwardly of the sidewall edges to enable the spring members to engage the back wall of the piston groove in which the ring is disposed. The spring action of the spring members biases the piston ring outwardly of the groove so that the scraping rims are maintained in scraping engagement with the cylinder walls.

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