摘要 |
PURPOSE:To provide a power steering device which is prevented from exhibiting a power assist force before a steering reaction force is normally generated. CONSTITUTION:In a release valve 101, when a pressure on the steering reaction force generating circuit side is not increased to a given value, a spool 103 is energized in one direction through the force of a resilient member 105. Pressure oil which is to be fed to the power steering control valve 1 side is returned to a tank 67. When a pressure on the reaction force generating circuit side is increased to a given value, the spool 103 is moved in the other direction against the resilient force of the resilient member 105 by dint of a pressure on the steering reaction force generating circuit side, and pressure oil is fed to the power steering control valve side. |