| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To secure the output amount to be required, while restricting the discharge amount, in a bleed type solenoid valve. <P>SOLUTION: This solenoid valve 20 is a bleed type solenoid valve formed with a flow passage A, in which the hydraulic oil flowing into a sleeve 42 through an input port 52 flows into a flow passage changeover section 60 through a restrictor by means of by a restriction opening 64, thereafter being output from an output port 54 along with the associated drainage from a drain port 56, and a flow passage B, in which the hydraulic oil flows between the outer peripheral surface of the flow passage changeover section 60 and the inner peripheral surface of the sleeve 42 without passing through the restrictor to be output from the output port 54. According to the output amount required to be output from the output port 54, the flow passage A and the flow passage B can be made to open, or the flow passage A can be only made to open with the associated drainage from the drain port 56 in a manner to move a valve shaft 70 and the flow passage changeover section 60 by driving an electromagnetic section 30 for shutting off the flow passage B. With this structure, since the input quantity is restricted in adjustment of the discharge quantity, the output amount to be required can be secured, restricting the discharge amount. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
