VEHICLE COOLING DEVICE

• Main Authors: TAKANO HIROHISA, MATSUSAKA MASANOBU, SATO TADAYOSHI
• Format: Patent
• Language: English; French; German
• Published: 19.02.2014
• Subjects: BLASTING; COOLING OF INTERNAL-COMBUSTION ENGINES; COOLING OF MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

Provided is a vehicle cooling device that is easily downsizable and unlikely to increase power consumption. The vehicle cooling device is provided with a pump, a plurality of circulation paths connected to the pump for circulating coolant between a vehicle's object of cooling and a heat exchanger, a solenoid valve capable of opening and closing at least one of the plurality of circulation paths, and a control unit for controlling the operation of the pump. The solenoid valve includes a valve body that is movable between a position in which the valve body is separated from a valve seat and a position in which the valve body is in abutment with the valve seat, the valve body being held in abutment with the valve seat, and a solenoid capable of maintaining the abutment between the valve body and the valve seat due to energization thereof. The valve body is provided in a manner that allows the fluid pressure of the coolant to move the valve body to the position in which the valve body is separated from the valve seat when the solenoid is not energized and the pump is in operation, and the control unit is configured to be able to perform controlling to stop the pump and start energization of the solenoid when determining that conditions are ready for stopping the circulation of the coolant through the circulation path in which the solenoid valve is disposed.