Air-conditioning apparatus

Details Air-conditioning apparatus Air-conditioning apparatus

1994-09-20

1996-06-18

Wayner, William E.

Refrigeration

Automatic control

Refrigeration producer

62 90, F25D 1702, F25B 4104

Patent

active

055266509

ABSTRACT:
An air-conditioning apparatus that prevents a state of blowing temperature fluctuation due to magnitude of vehicle speed in a dehumidification mode. A condenser and evaporator are disposed within an air duct, and an exterior heat exchanger is disposed externally. A capillary and check valve are provided in a refrigerant passage between the condenser and exterior heat exchanger, and a capillary is provided in a refrigerant passage between the exterior heat exchanger and evaporator. During dehumidification mode, a four-way switching valve is switched so that the flow passage of refrigerant is from the condenser to the capillary, to the check valve, to the exterior heat exchanger, to the capillary, to the evaporator, and then to an accumulator. In this case, the condenser and exterior heat exchanger function as a refrigerant condenser in a series-connected state, but because in actuality the capillary is provided, the majority of refrigerant discharged from a compressor is condensed by the condenser.

REFERENCES:
patent: 3738117 (1973-06-01), Engel
patent: 3798920 (1974-03-01), Morgan
patent: 4920756 (1990-05-01), Howland et al.
patent: 5052189 (1991-10-01), Akiike
patent: 5299431 (1994-04-01), Iritani et al.
Patent Abstract of Japan, vol. 17, No. 645 (M-1517) Aug. 1993 re JP-A 5203274.

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