Diesel Kiki Co., Ltd.

Katumi Iida

Shinji Sutoh

Toshizo Hara

An automotive air-conditioning apparatus has an air blower and an air mixing damper for adjusting the ratio of a mixture of cool air and hot air. The temperature of air in the automobile cabin is controlled dependent on the amount of air fed from the air blower and the opening of the air mixing damper. In a demisting mode, the amount of air from the air blower is greater than that in a normal temperature adjusting mode, and the opening of the air mixing damper is controlled dependent on ambient-air conditions.

Automotive air-conditioning apparatus with demist control

An air conditioning system for preventing the fogging of vehicle windows includes a defroster switch which is closed to turn on a compressor when the temperature at or around the surfaces of an evaporator drops down to a predetermined off mode level. When the temperature outside the vehicle passenger compartment drops from a relatively high level to a first predetermined level, the off mode level becomes saturated to a constant (maximum) level. As the outside temperature further drops to reach a predetermined second temperature level, the off mode level is progressively lowered from the maximum level to a lower level. With this control, the compressor is turned on again after being closed by closing of the defroster switch, thereby permitting the vehicle windows to be cleared of the fogging from their inner surfaces.

Growing community of inventors

Konan, Japan

Katumi Iida