| 摘要 |
PROBLEM TO BE SOLVED: To achieve both the suppression of distribution of air from the outlet of a reserve tank to the electric pump side and the reduction of load of the electric pump.SOLUTION: A circulation flow path 30 has a bypass section 36 interconnecting a branch point P1 on an inlet 27 side of a reserve tank 26 and a confluence P2 on an outlet 28 side of the reserve tank 26 without going through the reserve tank 26. The circulation flow path 30 is formed so that the cross-sectional area of a tank inlet 32 between the branch point P1 and the inlet 27 of the reserve tank 26 is smaller than the cross-sectional area of the bypass section 36. |
