Scroll compressor with a thrust reduction mechanism

Details Scroll compressor with a thrust reduction mechanism Scroll compressor with a thrust reduction mechanism

1986-09-02

1987-09-29

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 57, 418 88, 418 94, F04C 1804, F04C 2700, F04C 2902

Patent

active

046966307

ABSTRACT:
In a scroll compressor for compressing gas a scroll unit having stationary and orbiting scroll members with interfitting spiroidal wraps is hermetically enclosed in a housing. During operation, a compression chamber defined between the scroll chambers is given a high pressure, and the space in the housing below the orbiting scroll member is given a low pressure atmosphere. A motor housed in the low pressure atmosphere rotates a drive shaft. This drive shaft causes the orbiting scroll member to orbit. A passage is provided in the orbiting scroll member to connect the low pressure atmosphere and the compression chamber. A thrust reduction mechanism is supported by the housing in the low pressure atomophere. The thrust reduction mechanism receives the pressure of the compression chamber via the passage.

REFERENCES:
patent: 3600114 (1971-08-01), Dvorak et al.
patent: 3884599 (1975-05-01), Young et al.
patent: 3994633 (1976-11-01), Shaffer
patent: 4343599 (1982-08-01), Kousokabe
patent: 4431380 (1984-02-01), Utter
patent: 4502852 (1985-03-01), Hazaki
patent: 4645437 (1987-02-01), Sakashita et al.

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