Pumps – Motor driven – Including means utilizing pump fluid for augmenting cooling,...
Patent
1997-09-10
2000-08-15
Freay, Charles G.
Pumps
Motor driven
Including means utilizing pump fluid for augmenting cooling,...
417369, 417370, F04B 3504
Patent
active
061026727
ABSTRACT:
A motor-driven compressor comprises a motor that is carried by a motor-enclosing housing portion, a compressor wheel that is driven by the motor within a second housing portion forming a pressurized enclosure, and means for providing a flow of cooling air for the motor from the pressurized compressor housing portion to the motor-enclosing housing portion. In this motor-driven compressor a small portion of the air flowing through the compressor is directed to the motor housing as cooling air for the motor windings and then is either exhausted to atmosphere or recirculated to the compressor air inlet. As a result, a portion of the internal heat generated in the windings is carried away, permitting a higher level of power to be produced reliably by the motor on a continuous basis and, in turn, allowing the compressor to deliver more compressed air at higher pressure to the receiving entity.
REFERENCES:
patent: 2301063 (1942-11-01), McConaghy
patent: 3341113 (1967-09-01), Sebok et al.
patent: 4616980 (1986-10-01), Carpenter
patent: 4684329 (1987-08-01), Hashimoto
patent: 4699573 (1987-10-01), Petrie et al.
patent: 4767285 (1988-08-01), Jyoraku et al.
Halimi Edward M.
Woollenweber William E.
Freay Charles G.
Turbodyne Systems Inc.
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