| 摘要 |
PURPOSE:To prevent an automotive flow distributing valve from vibrating by normally operating the spool of the valve. CONSTITUTION:The downstream passages of first and second orifices 34, 33 of a flow distributing valve 1 are shorted, and a valve d is provided in this hydraulic circuit. The exhaust fluid from a pump 5 is introduced from an inlet 2 through the first orifice 34 into an outlet 3 and partially flown through the second orifice 33 into an outlet 4. When the valve 10 is locked, a relief valve 8 is opened to stop flowing out from the outlet 4 to thereby eliminate fluid pressure difference between chambers 16 and 17 to cause a spool 14 to move by a spring 18 so as to open the valve d. The spool 14 moves responsive to the fluid pressure difference when the fluid flow passes through the orifices 33, 34 to thereby control the opening of the orifice c so as to thus control the fluid flow at the outlet 3. |
