Piston ring

Details Piston ring Piston ring

1977-04-20

1978-12-19

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

F16J 906

Patent

active

041302885

ABSTRACT:
The disclosure embraces a piston ring particularly an oil control ring comprising a spacer-expander ring in association with one or more rails, ring segments or sealing rings wherein the spacer-expander ring component is configurated for preventing or minimizing necklacing during installation of the ring construction in the ring groove of a piston.

REFERENCES:
patent: 3261612 (1966-07-01), Games
patent: 3695622 (1972-10-01), Davis et al.

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