Pumps – Condition responsive control of pump drive motor – Responsive to pump or pump fluid temperature
Patent
1995-10-13
1998-01-13
Thorpe, Timothy
Pumps
Condition responsive control of pump drive motor
Responsive to pump or pump fluid temperature
417292, 417310, 418 554, 418 555, F04B 4910
Patent
active
057072108
ABSTRACT:
A thermally responsive valve assembly for scroll motor-compressor high temperature protection, which causes a high-side to low-side leak when excessive discharge gas temperatures are encountered, thereby causing the motor protector to trip and de-energize the motor. The valve assembly includes means for ducting the excessive temperature discharge gas to the lower portion of the motor/compressor shell to the motor to circulate the high temperature gas throughout the motor cavity. The excessive temperature discharge gas heats the motor stator and windings which will in turn cause the motor protector to trip and de-energize the motor. A secondary flow passage increases the flow rate or the discharge gas to lower the cycle time of the compressor.
REFERENCES:
patent: 4383605 (1983-05-01), Teegarden et al.
patent: 4456435 (1984-06-01), Hiraga et al.
patent: 4496296 (1985-01-01), Arai et al.
patent: 4505651 (1985-03-01), Terauchi et al.
patent: 4514150 (1985-04-01), Hiraga et al.
patent: 4560330 (1985-12-01), Murayama et al.
patent: 4586653 (1986-05-01), Foller et al.
patent: 4596520 (1986-06-01), Arata et al.
patent: 4596521 (1986-06-01), Murayama et al.
patent: 4669962 (1987-06-01), Mizuno et al.
patent: 4714415 (1987-12-01), Mizuno et al.
patent: 4744733 (1988-05-01), Terauchi et al.
patent: 4820130 (1989-04-01), Eber et al.
patent: 4828462 (1989-05-01), McBurnett
patent: 4840545 (1989-06-01), Moilanen
patent: 4846633 (1989-07-01), Suzuki et al.
patent: 4995553 (1991-02-01), Foller et al.
patent: 5090880 (1992-02-01), Mahimo
patent: 5141407 (1992-08-01), Ramsey et al.
patent: 5156539 (1992-10-01), Anderson et al.
patent: 5186613 (1993-02-01), Kotlarek et al.
patent: 5248244 (1993-09-01), Ho et al.
patent: 5290154 (1994-03-01), Kotlarek et al.
patent: 5368446 (1994-11-01), Rode
Caillat Jean-Luc
Kulkarni Sunil S.
Ramsey Jeffery D.
Copeland Corporation
Thai Xuan M.
Thorpe Timothy
LandOfFree
Scroll machine with overheating protection does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Scroll machine with overheating protection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scroll machine with overheating protection will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-321130