Oil seal ring for internal combustion engine

Details Oil seal ring for internal combustion engine Oil seal ring for internal combustion engine

1973-05-30

1976-03-30

Rothberg, Samuel B.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 81P, 277236, 418178, F16J 1500, F04C 1500

Patent

active

039470466

ABSTRACT:
An oil seal ring is obtained which can maintain its oil scraping performance at a satisfactory level despite the frictional wear it undergoes. It is formed with a tapered sliding surface having a hardness maximized at its oil scraping edge and decreasing with the distance therefrom. It can be manufactured by casehardening a ring blank through one end surface thereof which is oppositely tapered and subsequently finishing the end surface to shape.

REFERENCES:
patent: 2404616 (1946-07-01), Bramberry
patent: 3658451 (1972-04-01), Gomada
patent: 3787152 (1974-01-01), Mitsuyama
patent: 3830601 (1974-08-01), Yamazaki

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