F - Mech Eng,Light,Heat,Weapons – 02 – F
Patent
F - Mech Eng,Light,Heat,Weapons
02
F
121/84
F02F 3/00 (2006.01)
Patent
CA 1175312
ABSTRACT OF THE DISCLOSURE An improved sealing structure of the piston for an internal combustion engine, in which two piston rings are disposed within a groove freely movable with respect to one another and with respect to the groove. One of the piston rings is adapted to introduce lubricant oil into the groove during the piston up-stroke and the other is adapted to introduce the oil into the groove in the piston down- stroke. The piston rings reduce the space therebetween to force the lubricant oil in the groove in to the space between the piston ring and the cylinder wall.
381026
Marks & Clerk
Nissan Motor Co. Ltd.
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