Split piston ring having stepped ends

Details Split piston ring having stepped ends Split piston ring having stepped ends

1981-12-15

1984-05-22

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277222, F16J 900

Patent

active

044497210

ABSTRACT:
A piston ring working in a cylinder and receiving a higher pressure on one axial side thereof than one the other and having axially overlapping stepped ends, wherein a circumferentially extending resilient lip is provided on one of the stepped ends of the low pressure side, and a circumferentially extending projection is provided on the other of the stepped ends of on the low pressure side and is located radially outwards of the lip to radially overlap therewith at least partially. In use, the lip resiliently deforms to engage with the projection in response to pressure acting on the radially inner surface of the piston ring.

REFERENCES:
patent: 1206691 (1916-11-01), Frykman
patent: 1355237 (1920-10-01), Maloney
patent: 1363239 (1920-12-01), Ekman
patent: 1381668 (1921-06-01), Schaap
patent: 1384158 (1921-07-01), Setter
patent: 3373999 (1968-03-01), Jepsen
patent: 3455565 (1969-07-01), Jepsen
patent: 3655208 (1972-04-01), Walker

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