Scroll compressor with shaft seal lubrication

Details Scroll compressor with shaft seal lubrication Scroll compressor with shaft seal lubrication

1995-11-13

1996-10-22

Vrablik, John J.

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

418 554, 418 555, 418 556, 418100, F04C 1804, F04C 2700, F04C 2902

Patent

active

055671373

ABSTRACT:
A scroll compressor for compressing a gaseous refrigerant including a lubricant in a mist state, having a stationary scroll member and a movable scroll member, which define pump chambers at an outer wall side of the movable scroll member and an inner wall side of the movable scroll member, which chambers are initially opened to an inlet port via a main intake passageway for introducing a gaseous refrigerant into the chambers when they are radially outwardly located. A sub-intake passageway, in which a shaft seal unit is provided, is diverted from the main intake passageway and is opened to the outer wall sided chamber before the chamber is sealingly closed so that a flow of gas, from the inlet port, is introduced into the chamber, the gas is positively fed to the shaft seal unit, and the shaft seal unit is lubricated.

REFERENCES:
patent: 5240392 (1993-08-01), Fukanuma et al.

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