Pumps – With condition responsive pumped fluid control – Inlet throttle or stop valve
Patent
1997-09-22
2000-05-09
Freay, Charles G.
Pumps
With condition responsive pumped fluid control
Inlet throttle or stop valve
417228, 418 552-55.6, F04B 4900
Patent
active
06059540&
ABSTRACT:
A scroll-type fluid displacement apparatus has two interfitting spiral-shaped scroll members which have predetermined geometric configurations. The novel design provides an oil-gas separation and circulation system in which the oil, through a reservoir in the close proximity of the thrust bearing and metering orifices network, is properly and promptly directed to the scroll compression chamber, Oldham ring and bearings to provide lubrication and cooling. This invention also provides a notch mechanism at the tip of the orbiting scroll member during operation to avoid the orbiting scroll wrap from completely blocking the oil injection ports of small size on the fixed scroll base. This invention further relates to a gas intake system which directs gas from the oil-gas separator/sump to close the intake control valve and maintain low power consumption during unload mode. When the compressor shuts off, the system enable pressure inside scroll compressor to quickly reach balance and makes the compressor ready for restart.
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Freay Charles G.
Lione Richard G.
Mind Tech Corp.
Tyler Cheryl J.
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