Lubrication system for a scroll compressor

Details Lubrication system for a scroll compressor Lubrication system for a scroll compressor

1989-08-30

1991-05-07

Vrablik, John J.

Rotary expansible chamber devices

Methods

418 556, 418 88, 418 94, 418 97, 418DIG1, F04C 1804, F04C 2902

Patent

active

050132253

ABSTRACT:
A hermetic scroll compressor is disclosed including within a hermetically sealed housing a fixed scroll member, an orbiting scroll member, and a crankshaft operably coupled to the orbiting scroll member and driven by a motor. The crankshaft has an axial passageway therein that is in fluid communication with an oil sump located in a discharged pressure chamber within the housing. Upon rotation of the crankshaft, a centrifugal oil pump delivers oil through the axial passageway to the bottom surface of a plate portion of the orbiting scroll member. An oil passage extends through the orbiting scroll plate to introduce oil into a discharge compression chamber established by the intermeshing fixed and orbiting scroll members. Accordingly, oil is introduced into the compression chamber and intermediate the scroll members without the creation of an intentional pressure leak. The size of the oil passage can be varied to affect the amount of oil introduced into the compression chamber.

REFERENCES:
patent: 4314796 (1982-02-01), Terauchi
patent: 4457675 (1984-07-01), Inagaki et al.
patent: 4496296 (1985-01-01), Arai et al.
patent: 4555224 (1985-11-01), Hazaki et al.
patent: 4596520 (1986-06-01), Arata et al.
patent: 4669962 (1987-06-01), Mizuno et al.
patent: 4696630 (1987-09-01), Sakata et al.
patent: 4865530 (1989-09-01), Nishida et al.

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