Scroll compressor with oil grooves in thrust bearing

Details Scroll compressor with oil grooves in thrust bearing Scroll compressor with oil grooves in thrust bearing

1987-04-24

1988-09-20

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 88, 418 94, 384123, 384368, F04C 1804, F04C 2902, F16C 3310

Patent

active

047721880

ABSTRACT:
A scroll compressor comprises an orbiting scroll and a stationary scroll, both being mutually combined to form a compression chamber therebetween. The scroll compressor is provided with a lubricating oil feeding system to lubricate each bearing constituting a contact-sliding and contact-rotating part. A special arrangement of oil grooves is made in a thrust bearing supporting the orbiting scroll in such a manner that pressure loss in the oil grooves of the thrust bearing is greater than a pressure raised by the third oil pump means so that there causes no negative pressure at the inlet port of a radial oil feeding conduit and the outlet of the vertical oil feeding passage in the main shaft.

REFERENCES:
patent: 2081063 (1937-05-01), Oliver
patent: 4056279 (1977-12-01), McCullough
patent: 4623306 (1986-11-01), Nakamura et al.

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