| 摘要 |
<p>Provided is an engine cooling apparatus that can be readily formed compact and that does not easily invite increase of power consumption. An engine cooling apparatus includes an engine for vehicle traveling, a pump driven by the engine, a heat exchanger, a circulation passage for circulating cooling liquid between the engine and the heat exchanger by driving of the pump, a solenoid valve capable of opening/closing the circulation passage, and a controller for controlling operations of the engine. The solenoid valve includes a valve body movable between a position away from a valve seat and a position contacting the valve seat and held to contact the valve seat and a solenoid capable of maintaining the contact between the valve body and the valve seat in response to supply of power thereto. At the time of driving of the pump under a non-energized state of the solenoid, the valve body is movable to the position away from the valve seat by the fluid pressure of the cooling liquid. The controller is configured to be controllable such that power supply to the solenoid is initiated before start-up of the engine.</p> |
