Scroll compressor with pressure-equalizing passage and gas vent

Details Scroll compressor with pressure-equalizing passage and gas vent Scroll compressor with pressure-equalizing passage and gas vent

1987-10-20

1988-12-20

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 88, 418 94, 184 623, F04C 1804, F04C 2902

Patent

active

047922966

ABSTRACT:
A scroll compressor is provided with a main shaft to drive an orbiting scroll whereby fluid in a compression chamber which is formed by combining a stationary scroll with the orbiting scroll is compressed and then is discharged from the scroll compressor. To prevent a refrigerant gas in an eccetric recess formed in the main shaft from mixing with a lubricating oil, a conduit is formed in the main shaft to communicate the eccentric recess with a space between the lower part of the orbiting scroll and the upper part of the main shaft.

REFERENCES:
patent: 4065279 (1977-12-01), McCullough
patent: 4343599 (1982-08-01), Kousokabe
patent: 4488855 (1984-12-01), Butterworth et al.
patent: 4623306 (1986-11-01), Nakamura et al.

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