| 摘要 |
<P>PROBLEM TO BE SOLVED: To finely control circulation of a coolant water while reducing the number of actuators. <P>SOLUTION: A cooling device includes: a first coolant water passage for communicating between an outlet of a water pump and the internal combustion engine; a second coolant water passage for communicating between an inlet of the water pump and a radiator bypass passage; a first control valve disposed in the first coolant passage; and a second control valve disposed in the second coolant water passage. A single actuator controls states of the first control valve and the second control valve. The first control valve includes a collision plate with which a flow of the coolant water in the first coolant water passage collides, and the collision of the coolant water with the collision plate changes an opening/closing state of the first control valve. <P>COPYRIGHT: (C)2013,JPO&INPIT |
