| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling auxiliary device capable of effectively suppressing pressure loss of a cooling system in a low engine speed while effectively keeping cooling auxiliary performance at a high engine speed. ! SOLUTION: A cooling auxiliary device includes: a cylindrical gas-liquid separator body 21 disposed in a cooling water circulation passage and capable of separating a mixed gas by generating swirl flow in cooling water introduced therein; a flap member 22 disposed in the gas-liquid separator body 21, and rotatable to a first position for suppressing the swirl flow of the cooling water and a second position for permitting the swirl flow of the cooling water; and a torsion spring 23 for biasing the flap member 22 from the second position toward the first position. The flap member 22 is retained at the first position by the torsion spring 23 when a fluid pressure of the cooling water force-fed by a cooling water pump 14 is less than a prescribed pressure, and the flap member 22 is |
