Steuerventilbaueinheit mit elektromagnetischem Dosierungs-Druckreduzierventil

摘要

PCT No. PCT/JP93/01860 Sec. 371 Date Jun. 7, 1995 Sec. 102(e) Date Jun. 7, 1995 PCT Filed Dec. 22, 1993 PCT Pub. No. WO94/15128 PCT Pub. Date Jul. 7, 1994An operating valve assembly with an electromagnetic proportioning pressure reduction valve comprises an operating valve constructed by slidably disposing a spool in a spool bore opening to an end face of a valve body, mounting a spring case including a case body having a blind bore and a housing having a spool bore for a pressure reduction valve on the end face in a manner such that the spool bore and the blind bore are matched to each other, and defining a pressure receiving chamber between the interior wall of the blind bore of the spring case and the end portion of the spool, and the electromagnetic proportioning pressure reduction valve constructed by disposing a spool for the pressure reduction valve in the spool bore for the pressure reduction valve, and mounting a solenoid for driving the spool for the pressure reduction valve on the housing, and an output port of the electromagnetic proportioning pressure reduction valve is communicated with the pressure receiving chamber.