Heat exchange – With alarm – indicator – signal – register – recorder – test or... – Remotely controlled inspection means
Patent
1981-10-19
1985-05-28
Davis, Jr., Albert W.
Heat exchange
With alarm, indicator, signal, register, recorder, test or...
Remotely controlled inspection means
621765, 165 16, 165 43, 98 208, 98 209, B60S 154
Patent
active
045194432
ABSTRACT:
This invention relates to a vehicle air conditioning device and defroster having a control circuit for controlling a compressor, an outdoor air/inner air change-over door and a blower fan for air conditioning the vehicle room. A control switch is provided for a rear window heater wire for defrosting the window pane of the vehicle containing the wire. The vehicle air conditioner is operated in response to the operation of the rear window heater when it is energized. The rear window heater wire is turned on manually or automatically in response to an outdoor frost sensor. The compressor is operated to defrost when the outdoor air temperature is higher than the allowable operating temperature in the compressor. During operation of the control switch, the outdoor air/inner air change-over door is controlled, when the air temperature is lower than a selected allowable operating temperature, so as to increase the feeding rate of the outdoor air or to increase the feeding volume of the outdoor air. When the rear window heater wire is set to a turned on-mode by the rear window heater wire control switch, a defrosting operation it is performed simultaneously with reference to the operation of the compressor or outdoor air/inner air change-over door or blower fan, so that it is possible to prevent frosting either at a front glass or side window panes, to defrost the window panes and to economize on power consumption by the heater wire.
REFERENCES:
patent: 4004126 (1977-01-01), Boaz
patent: 4183397 (1980-01-01), d'Orsay et al.
patent: 4261179 (1981-04-01), Dageford
patent: 4324286 (1982-04-01), Brett
Hara Toshizo
Sutoh Shinji
Takahashi Akiyoshi
Davis Jr. Albert W.
Diesel Kiki Kabushiki Kaisha
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