| 摘要 |
<p>A hydraulic control valve and a power steering device using the valve, wherein a chamfered part is provided only in restricted parts between an oil supply chamber and first and second oil feed chambers or between an oil drain chamber (11) and first and second oil feed chambers, whereby, even if oil grooves of a valve body and a valve spool are positioned at six or more equal intervals in circumferential direction, respectively, the amount of oil distribution per flow control position can be doubled as compared with the conventional amount when the minimum control flow is reduced as far as possible so as to stabilize the hydraulic characteristics in the minimum control flow region and thus eliminate the discontinuity of the hydraulic characteristics.</p> |
