Oil feeding device for scroll fluid apparatus

Details Oil feeding device for scroll fluid apparatus Oil feeding device for scroll fluid apparatus

1982-04-07

1985-03-05

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 94, F01C 102, F01C 2104

Patent

active

045028524

ABSTRACT:
Oil feeding device for feeding lubricant oil to bearings journalling a crank shaft connected to an orbiting scroll member of scroll fluid apparatus including recessed oil flow passages formed on the outer peripheral surface of the crank shaft in positions corresponding to a first plain bearing journalling a crank portion of the crank shaft and second and third plain bearings for journalling a shaft portion of the crank shaft respectively. The oil flow passage for the third plain bearing offers a lower resistance to the flow of fluid than the oil flow passages for the first and second plain bearings, to thereby avoid wear and seizure of the bearings.

REFERENCES:
patent: 3848702 (1974-11-01), Bergman
patent: 4065279 (1977-12-01), McCullough
patent: 4216661 (1980-08-01), Tojo et al.
patent: 4343599 (1982-08-01), Kousokabe

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