Piston ring

Details Piston ring Piston ring

1980-01-28

1981-05-12

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277217, F16J 159

Patent

active

042667879

ABSTRACT:
A piston ring for an oblong piston is adapted to be received in a peripheral groove on the piston. The piston ring is split and the gap between the split ends is located at the center of one of two spaced curved sections of said piston ring. A corrugated spring is received in the peripheral groove within the piston ring and a gap between its split ends is positioned adjacent a side section which extends between the spaced curved sections. The corrugations which contact the side section are closer together than those which contact the curved end sections of the piston ring. This construction helps to equalize the pressure of the piston ring against the cylinder at points around the outer surface of the piston ring.

REFERENCES:
patent: 1436177 (1922-11-01), Krause
patent: 2766749 (1956-09-01), Marien
patent: 2983256 (1961-05-01), Seeloff
patent: 4198065 (1980-04-01), Fukui

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