The present invention provides a hydraulic control valve and a power
steering apparatus using the same in which chamfer portions are provided
only on throttle portions between oil supply chambers and first oil feed
chambers and between the oil supply chambers and second oil feed
chambers, or only throttle portions between oil discharge chambers 11 and
the first oil feed chambers and between the oil discharge chambers 11 and
the second oil feed chambers. With this design, even if six or more oil
grooves of each of a valve body and a valve spool are disposed at equal
distances from one another, when the minimum flow rate to be controlled
is reduced as small as possible, a distribution amount for one portion
where the flow rate is controlled can be doubled as compared with a
conventional structure, it is possible to stabilize the hydraulic
characteristics in a region where the flow rate to be controlled is
minimum, and to eliminate the discontinuity of the hydraulic
characteristics.