Power plants – Motor operated by expansion and/or contraction of a unit of... – Unit of mass is a gas which is heated or cooled in one of a...
Patent
1981-12-30
1984-07-31
Ostrager, Allen M.
Power plants
Motor operated by expansion and/or contraction of a unit of...
Unit of mass is a gas which is heated or cooled in one of a...
62 6, F25B 900, F02G 104
Patent
active
044622120
ABSTRACT:
A system for providing thermal energy output at intermediate levels below about 120.degree. C. uses both a conventional heat source input and an ambient heat source input to the hot and cold ends, respectively, of a Vuilleumier cycle machine. While converting thermal energy to work in both a heat engine process and a heat pump process, an intermediate working chamber integral with both processes is arranged to provide thermal output at the desired intermediate level. By maintaining the pressure ratio within predetermined limits and observing a number of temperature relationships desirably high coefficients of performance are provided with useful levels of output in a reliable system having long operating life.
REFERENCES:
patent: 3379026 (1968-04-01), Cowans
patent: 3845624 (1974-11-01), Roos
patent: 3858802 (1975-01-01), Stobart
Symposium Papers, "Future Alternatives in Residential/Commercial Space Conditioning," Jun. 12-14, 1980, Chicago, Ill., 4 pp.
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