F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
277/28
F16J 9/00 (2006.01) F16J 9/14 (2006.01) F16J 9/26 (2006.01)
Patent
CA 1264170
ABSTRACT OF THE DISCLOSURE A parted annular piston ring having an outer periphery for engaging a cylinder wall of an internal combustion engine is disclosed. A band of hard, wear-resistant material is secured in a groove which extends circumferentially completely around the outer periphery of the ring. The band is disposed axially between upper and lower narrow lands. An overlapping joint construction is provided at the parted ends of the ring and comprises mutually circumferentially overlappable surfaces inclined at an acute angle relative to the plane of the ring and terminating in the outer periphery of the ring along edges disposed in the upper land. The upper land is wider than the lower land, and the mutually overlappable joint surfaces terminate at their radially inward edges in the bottom side wall of the ring. The band has axially extending end edges exposed at the split, and the outer periphery of the ring has a barrel face contour such that the maximum outside diameter of the ring falls within the outer wear surface of the band.
422445
Dana Corporation
Ridout & Maybee Llp
LandOfFree
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