Piston oil control ring

Details Piston oil control ring Piston oil control ring

F - Mech Eng,Light,Heat,Weapons

16

J

277/33

F16J 9/06 (2006.01) F16J 9/20 (2006.01)

Patent

CA 1057327

PISTON OIL CONTROL RING Abstract In a composite oil control ring for recipro- cating piston internal combustion engines, of the type which includes a relatively soft parted cast iron ring and an expander-spring disposed internally of the ring to bias the same into sealing engagement with a cylin- der wall, a parted annular insert rail of wear-resistant metal is disposed between the expander and the ring to reduce wear on the ring and to prevent embedment or unitization of the ring and spring. --------0-------

265746

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