| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control valve which instantly achieves a maximum flow rate, in a flow control valve. <P>SOLUTION: This cooling medium flow control valve 1 includes a motor-operated valve 100 arranged on a valve body 10, wherein the motor-operated valve 100 controls the flow rate of a cooling medium flowing between cooling medium passages 12, 22 by moving a needle valve 110 forward/backward with respect to a valve seat part 222. An electromagnetic attraction device 200 arranged in an opening 16 of the valve body 10 includes an attractor 230 generating magnetic force by a coil 250, attracts a plunger 220 in carrying current to the coil 250, and separates the valve seat part 222 from the needle valve 110 to instantly increase the flow rate of the cooling medium. <P>COPYRIGHT: (C)2012,JPO&INPIT |
