Piston ring with annular expander spring

Details Piston ring with annular expander spring Piston ring with annular expander spring

1983-03-09

1984-07-31

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277141, 277142, 267 15, F01C 1908, F16J 906

Patent

active

044626029

ABSTRACT:
A piston ring assembly has a ring-shaped expander spring composed of an annular body defining an axial direction and presenting a circumferential main bending region and a plurality of resilient tongues extending radially outwardly from the main bending region and adjoined, adjacent the main bending region, by generally axially extending parts of the annular body. The assembly further has a lamina lying, at least in part, on the tongues and is radially supported by the axially extending parts. The main bending region is disposed radially inwardly of the lamina.

REFERENCES:
patent: 2621989 (1952-12-01), Norton
patent: 3477732 (1969-11-01), Warrick
patent: 3627333 (1971-12-01), Hill
patent: 3738668 (1973-06-01), Minegishi
patent: 4183544 (1980-01-01), Morsbach et al.

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