| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power steering device having a pump structure to be simplified. <P>SOLUTION: An oil pump 11 for feeding/discharging working fluid to/from a pair of pressure chambers of a power cylinder in this power steering device is made to have a structure in which first and second suction ports 27 and 28 connected to first and second suction passages 23 and 24, for instance, are opened and formed to face the inside of a reservoir tank 13 on an end face 14a opposed to a cam ring 15 of the pump body 14, and first and second check valves 29 and 30 are provided in each of the suction ports 27 and 28. As a result, each of the check valves 29 and 30 can be constituted by utilizing the cam ring 15, and the structure of the oil pump 11 is simplified. <P>COPYRIGHT: (C)2011,JPO&INPIT |
