Piston ring of internal combustion engine

Details Piston ring of internal combustion engine Piston ring of internal combustion engine

1981-05-11

1982-12-07

Feinberg, Craig R.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

92177, 277200, F16J 906

Patent

active

043621350

ABSTRACT:
An internal combustion engine is provided with at least one oblong cylinder and an oblong piston mounted to reciprocate therein. A piston ring is positioned within an annular piston ring groove formed in the piston, the piston ring including an outer ring in contact with the cylinder, an inner ring and a biasing means such as a corrugated plate spring positioned between the inner ring and the outer ring. The inner ring is normally slightly spaced apart from the inner periphery of the piston ring groove so that the piston ring is allowed to be laterally displaced the amount of such spacing during piston oscillation, thereby providing improved sealing between the piston and cylinder.

REFERENCES:
patent: 2257417 (1941-09-01), Kelley
patent: 2409555 (1946-10-01), Gadoux et al.
patent: 2474493 (1949-06-01), Phillips
patent: 2569778 (1951-10-01), Phillips
patent: 2766085 (1956-10-01), Muller
patent: 2970022 (1961-01-01), Anderson
patent: 4045036 (1977-08-01), Shunta
patent: 4053165 (1977-10-01), Hartley
patent: 4206930 (1980-06-01), Thrane et al.

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