Scroll-type positive fluid displacement apparatus with oil compa

Details Scroll-type positive fluid displacement apparatus with oil compa Scroll-type positive fluid displacement apparatus with oil compa

1985-02-11

1986-11-11

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 88, 418 94, 184 618, 184 623, 62469, F01C 104, F01C 2104, F01M 102, F01M 1100

Patent

active

046219935

ABSTRACT:
A scroll-type pumping apparatus comprising a stationary scroll 1, an orbiting scroll 2 and a drive shaft 6 driving the orbiting scroll. A bottom end portion of the drive shaft is dipped in oil in a basin 150 formed at the bottom side of the apparatus. A compartment plate 30 is arranged between the basin and a motor 10 and 11 driving the drive shaft. Flow preventing means allows flow only in the direction from an upper side to a lower side of the compartment plate.

REFERENCES:
patent: 2239723 (1941-04-01), Limpert et al.
patent: 3066857 (1962-12-01), McCloy
patent: 4488855 (1984-12-01), Butterworth et al.

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