PRIORITY SPOOL VALVE WITH A CHECK ORIFICE FUNCTION CAPABLE OF SMOOTHLY TRANSFERRING WORKING FLUID THROUGH A CHECK ORIFICE

摘要

PURPOSE: A priority spool valve with a check orifice function is provided to stably maintain the handling of a steering wheel during the operation of a work device.;CONSTITUTION: A priority spool valve with a check orifice function comprises an input port(11), an output port(12), a housing(10), a first chamber(21), a first cover(20), a second cap(34), and a second cover. Working fluid flows into and out from a control device for a vehicle through the input port. The working fluid supplied by a pump flows in and out through the output port. A working passage(13) in which the working fluid flows is formed in the housing. The first chamber accommodates the working fluid supplied through the input port. A spool, which surrounds the outer periphery of a return spring of which one end is supported inside the first chamber, is formed in the first cover The second cap is attached to one end of the spool and has a second receiving groove at a predetermined depth in one end thereof.;COPYRIGHT KIPO 2013