Nissan Motor Company Limited

Takahisa Takeoka

Yukio Shimada

Yutaka Obata

Toyotoshi Katoh

A cooling system for radiator and condenser with an air conditioner having first and second electrically driven blowers for cooling the radiator and condenser, and a cooling cycle operation switch which comprises a control circuit provided on at least one side of the first and second blowers for either stopping or operating at low speed the one of the first and second blowers when any electrical equipment of vehicle such as headlights, wipers, is operated during the cooling cycle, an engine cooling water temperature switch operative to turn on and off the first blower by releasing the control of the control circuit when any of the electrical equipments is operated, and/or a thermal load switch operative to turn of and off the second blower in accordance with the outside temperature conditions by releasing the control of the control circuit, when any of the electrical equipments is operated. With this construction, the blowers for the radiator and condenser can be efficiently operated in accordance with the conditions of the engine cooling water temperature, the outdoor temperature, and the operated or non-operated conditions of the electrical equipments of a vehicle, so as to save electrical power generated by a generator or batteries of the vehicle.

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Ebina, Japan

Takahisa Takeoka