Pressure control valve for a power steering apparatus

摘要

A pressure control valve for a power steering apparatus comprises a pin extending along the movement of a spool and contacting on a solenoid with one end of the pin, a bore provided slidably in the spool and having a longer length than the pin, a first annular groove communicated with an oil passage change valve, and a second annular groove communicated with a reaction chamber as well as the first groove, and the second groove communicating with the bore.