| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hydraulic steering system having at least one steering control actuator 1. <P>SOLUTION: The steering control actuator 1 has a chamber connected to an exit of a direction control valve 4, an accumulator 25, and an electric drive type pump unit 20 connected to an emergency supply device 23. The hydraulic steering system has integrated selector valves 29, 30, 31, 32 executing a changeover between components in a normal operation mode and a changeover operation mode. <P>COPYRIGHT: (C)2003,JPO |
