Heat pump systems for residential use

Details Heat pump systems for residential use Heat pump systems for residential use

1982-09-02

1984-04-24

King, Lloyd L.

Refrigeration

Processes

Circulating external gas

62402, F25D 1706

Patent

active

044440219

ABSTRACT:
An air conditioning system of the air cycle heat pump type for selectively heating and cooling a residence or similar space environment. In one embodiment, a combustor and associated Brayton cycle turbine provide the primary drive to a compressor constituting the heat pump. In a second embodiment, the Brayton turbine is replaced by an electric motor coupled to drive the compressor shaft. An auxiliary turbine is also coupled to the drive shaft to provide auxiliary drive derived from the operation of a portion of the system at sub-atmospheric pressure. In this portion, during the cooling mode, water is evaporated into the system to further assist in cooling by removing the latent heat of vaporization.

REFERENCES:
patent: 3878692 (1975-04-01), Steves
patent: 4265397 (1981-05-01), Rannenberg
patent: 4295518 (1981-10-01), Rannenberg
patent: 4334411 (1982-06-01), Payne

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