Air conditioner

Details Air conditioner Air conditioner

1993-07-15

1994-11-08

Bennet, Henry A.

Refrigeration

Reversible, i.e., heat pump

With flow control or compressor details

62160, 165 29, 165 62, 237 2B, F25B 1300, F25B 2900

Patent

active

053616014

ABSTRACT:
An air conditioner is selectively operable in a main heating mode, a cooling mode and an auxiliary heating mode. In the main heating and cooling modes, refrigerant is circulated through a main line which includes a compressor, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger. In the auxiliary heating mode, the compressor is not activated, and the refrigerant is circulated through an auxiliary line having opposite ends connected by valves to the main line at opposite sides of the indoor heat exchanger. A pump and heater are disposed in the auxiliary line so that in the auxiliary heating mode, refrigerant is circulated by the pump through the heater and the indoor heat exchanger and back to the pump.

REFERENCES:
patent: 2134188 (1938-10-01), Haywood
patent: 2893218 (1959-07-01), Harnish
patent: 3777508 (1973-12-01), Imabayashi et al.
patent: 4506521 (1985-03-01), Asano et al.
patent: 4569207 (1986-02-01), James
patent: 4918933 (1990-04-01), Dyer
patent: 5174365 (1992-12-01), Noguchi et al.

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