Refrigeration – Gas compression – heat regeneration and expansion – e.g.,...
Patent
1980-05-28
1982-10-12
Capossela, Ronald C.
Refrigeration
Gas compression, heat regeneration and expansion, e.g.,...
62118, 623246, 62467R, F25B 900
Patent
active
043532187
ABSTRACT:
A heat transfer device is described that can be operated as a heat pump or refrigerator, which utilizes a working fluid that is continuously in a liquid state and which has a high temperature-coefficient of expansion near room temperature, to provide a compact and high efficiency heat transfer device for relatively small temperature differences as are encountered in heating or cooling rooms or the like. The heat transfer device includes a pair of heat exchangers that may be coupled respectively to the outdoor and indoor environments, a regenerator connecting the two heat exchangers, a displacer that can move the liquid working fluid through the heat exchangers via the regenerator, and a means for alternately increasing and decreasing the pressure of the working fluid. The liquid working fluid enables efficient heat transfer in a compact unit, and leads to an explosion-proof smooth and quiet machine characteristic of hydraulics. The device enables efficient heat transfer as the indoor-outdoor temperature difference approaches zero, and enables simple conversion from heat pumping to refrigeration as by merely reversing the direction of a motor that powers the device.
REFERENCES:
patent: 3816029 (1974-06-01), Bowen et al.
patent: 4044567 (1977-08-01), Dix et al.
patent: 4107935 (1978-08-01), Steyert, Jr.
Allen; P. C. et al. "Principles of Liquids Working in Heat Engines," Proc. Nat. Acad. Sci. vol. 77, p. 39, 1/80.
Allen Paul C.
Knight William R.
Paulson Douglas N.
Warkentin Paul A.
Wheatley John C.
Besha Richard G.
Capossela Ronald C.
Carnahan L. E.
Gaither Roger S.
The United States of America as represented by the United States
LandOfFree
Heat pump/refrigerator using liquid working fluid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Heat pump/refrigerator using liquid working fluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat pump/refrigerator using liquid working fluid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-218176