| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a damper valve which effectively prevents a valve plate from adhering to and hardly separating from a contact surface, stabilizes an operation of the valve plate, and provides well steering feeling, and also to provide a hydraulic power steering device using it. <P>SOLUTION: An annular groove 23b communicating with a plurality of communication passages 23a of a valve sleeve 23 is disposed on the end surface of the valve sleeve 23 facing the valve plate 25. <P>COPYRIGHT: (C)2004,JPO |
