Combined oil ring

Details Combined oil ring Combined oil ring

1982-06-11

1983-10-04

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277141, F16J 904, F16L 906

Patent

active

044075154

ABSTRACT:
A combined oil ring comprising a steel spacer expander and two steel side rails is described, which has excellent wear resistance and can be used in, for example, an internal combustion engine. The spacer expander and the side rail have specific structures procuded by applying a low temperature gas nitriding treatment.

REFERENCES:
patent: 3467397 (1969-09-01), Sugahara
patent: 3488060 (1970-01-01), Prasse
patent: 3522949 (1970-08-01), Wells
patent: 3695622 (1972-10-01), Davis et al.

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