| 摘要 |
PURPOSE:To prevent a flaw to a sealing cup and a piston in a master cylinder, by opening a solenoid valve through a controller in accordance with pressure in the first and the second master cylinders and connecting one of the master cylinders to an oil consumption device. CONSTITUTION:One of the pressure chambers in the first and the second master cylinders 2, 3 is connected to a controller 9 through oil paths 7, 7'. While the path 7 is connected to an oil consumption device 11 through a solenoid valve 10. Then the controller 9, when fluid pressure in the cylinder 3 is higher than fluid pressure in the cylinder 2 further the fluid pressure in the cylinder 2 is at least a preset value, opens the valve 10 to communicate the cylinder 2 to the device 11. |
