Heat pump refrigeration circuit with liquid heating capability

Details Heat pump refrigeration circuit with liquid heating capability Heat pump refrigeration circuit with liquid heating capability

1984-09-07

1985-07-16

King, Lloyd L.

Refrigeration

Disparate apparatus utilized as heat source or absorber

With vapor compression system

622386, 623241, 623244, F25B 2702

Patent

active

045288224

ABSTRACT:
A heat pump refrigeration circuit utilizes an indoor heat exchange unit, an outdoor heat exchange unit and a refrigerant-liquid heat exchange unit all connected serially to accomplish space heating, space cooling, liquid heating or simultaneous space cooling and liquid heating. A refrigerant charge reservoir is selectively incorporated into the circuit to control the refrigerant charge in the two liquid heating modes of operation by removing excess liquid refrigerant from the circuit. In the two non-liquid heating modes of operation the reservoir is isolated from all but the suction port of the compressor within the circuit. Liquid refrigerant previously deposited in the reservoir during a liquid heating mode of operation is vaporized and returned to the circuit for use in the selected non-liquid heating mode of operation. Refrigerant charge control is thereby maintained in all modes of operation without the necessity of evacuating an inactive heat exchanger.

REFERENCES:
patent: 3916638 (1975-11-01), Schmidt
patent: 3994142 (1976-11-01), Kramer
patent: 4134274 (1979-01-01), Johnsen
patent: 4249390 (1981-02-01), Jones
patent: 4253312 (1981-03-01), Smith
patent: 4299098 (1981-11-01), Derosier
patent: 4356706 (1982-11-01), Baumgarten
patent: 4399664 (1983-08-01), Derosier
patent: 4409796 (1983-10-01), Fisher
patent: 4493193 (1985-01-01), Fisher

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