Air conditioning apparatus for vehicle, using a flammable refrig

Details Air conditioning apparatus for vehicle, using a flammable refrig Air conditioning apparatus for vehicle, using a flammable refrig

1996-09-27

1999-07-06

Kilner, Christopher

Refrigeration

Automatic control

Of external fluid or means

62244, 62126, 62127, 62129, F25D 1704, B60H 132, F25B 4900

Patent

active

059184752

ABSTRACT:
According to the present invention, when leakage of refrigerant is detected during operation of an air conditioning apparatus for a vehicle, air outlets for a passenger and a solenoid valve for an air passage are closed. Accordingly, a compressor is stopped after a predetermined time has elapsed since the solenoid valve is closed. In this way, refrigerant within an evaporator is sucked and discharged. Consequently, an amount of refrigerant leaking from an air conditioner casing due to damage of the evaporator can be reduced.

REFERENCES:
patent: 4138856 (1979-02-01), Orlowski
patent: 4711096 (1987-12-01), Krantz
patent: 5385028 (1995-01-01), Gavlak
patent: 5461875 (1995-10-01), Lee et al.
Patent Abstracts of Japan, vol. 12, No. 332, Sep. 8, 1988, JP 63 093613.
Patent Abstracts of Japan, vol. 11, No. 368, Dec. 2, 1987, JP 62 143712.

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