| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power steering device which can efficiently fill hydraulic fluid, while reducing pressure in a seal chamber formed inside a pump. <P>SOLUTION: A drain passage 65, one end side of which communicates to the seal chamber 63, and which discharges fluid pressure in the seal chamber 63 to a passage aggregate 66 provided drilled on an inner side face 21a of a pump body 21; and a filling passage 67, one end side of which communicates to a first supply and drain port 12a being one supply and drain port, and which performs vacuuming and filling of the hydraulic fluid inside a device through the first supply and drain port 12a, are simultaneously opened. The other end sides of both the passages 65 and 67 are communicated with a reservoir tank 30 outside the pump 20 through a series of combination passages 64 which are constructed of a communication hole 74 penetrating along an axial direction of a cam ring 23 and a hydraulic fluid supply and drain port 75 connecting the inner and outer side faces of a cover member 22. <P>COPYRIGHT: (C)2012,JPO&INPIT |
