| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic pressure supply device which suppresses the clogging of a filtration means for catching foreign matter included in operating oil supplied to an automatic transmission.SOLUTION: The hydraulic pressure supply device 10 includes switching valves connected to first to fourth branch passages. The first branch passage 81 is connected to a first strainer 71 and the second branch passage 82 is connected to a second strainer 72. The third branch passage 83 is connected to an ejection port 312 of an electric pump 30 and the fourth branch passage 84 is connected to a relief port 42 of a line pressure control valve 40. When the switching valve 60 is operated on a first position, the operation oil ejected from the electric pump 30 passes through the third branch passage 83 and the first branch passage 81 and flows into the first strainer 71. On the other hand, when the switching valve 60 is operated on the second position, the operation oil discharged from the line pressure control valve 40 passes through the fourth branch passage 84 and the second branch passage 82 and flows into the second strainer 72. |
