| 摘要 |
PURPOSE:To make a fluid circuit in a power steering system and that in an actuator system actuating various car mechanism operatable in a separate manner, by installing both of a valve used for a power cylinder and a valve used for an actuator, belonging to a power steering unit, extendedly in a car width direction. CONSTITUTION:A pressure fluid produced in a first pump 57 is fed to a power cylinder 6 after being controlled by a first valve 55. Likewise, the pressure fluid produced in a second pump 59 is fed to a hydraulic cylinder ranging from alpha-delta of a rear-wheel suspension. With this, both fluid circuits of a power steering system and a rear-wheel system are separately controllable. In addition, a valve spool of a pressure control valve 34 is installed extendedly in a car width direction. With this constitution, there is no need to change a setup state of a steering shaft 37 any more, thus a bent angle capable of using a ball joint being installed interposingly in a point midway in the steering shaft 37 is securable with certainty. |
