| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power steering device excellent in the responsiveness in steering. <P>SOLUTION: The power steering device is structured so that its first 9a and second oil passage 9b are furnished with a first 15a and a second branch passage 15b having communication with a reserver tank 12, and on the branch passages 15a and 15b, a first 16a and a second solenoid selector valve 16b are installed. A steering control unit 7 puts the pressurization side pressure chamber in a closed circuit at the time of steering assist and puts the non-pressurization side pressure chamber in communication with the reserver tank 12. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
