FLUID CONTROL VALVE

PROBLEM TO BE SOLVED: To provide a fluid control valve capable of being quickly and surely opened and closed.SOLUTION: A fluid control valve includes a housing 4 having an inflow port 43a and an outflow port 41a for a fluid, a first magnetic body 8 provided with a circulation hole 81 for circulating the fluid, a solenoid B making magnetic flux flow to the first magnetic body 8, a second magnetic body 7 kept into contact with a peripheral edge portion of the circulation hole 81 to close the circulation hole 81 by being attracted to the first magnetic body 8 by the flowing of the magnetic flux generated from the solenoid B, an energization member S for energizing the second magnetic body 7 in a direction to separate from the first magnetic body 7, and a stopper 9 fixed to the housing 4 at a side of the outflow port 41a and preventing the movement of the second magnetic body 7 by energization force of the energization member S. Flow channel throttle portions 45, 92b for throttling a flow channel area in valve opening when the second magnetic body 7 is separated from the first magnetic body 8, are formed between a back face 7a kept into contact with the stopper 9, of the second magnetic body 7 and an inner face of the housing 4.SELECTED DRAWING: Figure 2 【課題】迅速且つ確実に開閉動作させることができる流体制御弁を提供する。【解決手段】流体の流入口４３ａと流出口４１ａとを有するハウジング４と、流体が流通する流通孔８１が設けられた第一磁性体８と、第一磁性体８に磁束を流すソレノイドＢと、ソレノイドＢから発生した磁束が流れることで第一磁性体８に吸引されることにより、流通孔８１の周縁部に当接して流通孔８１を閉塞する第二磁性体７と、第二磁性体７を第一磁性体７から離間する方向に付勢する付勢部材Ｓと、流出口４１ａの側でハウジング４に対して固定され、付勢部材Ｓの付勢力による第二磁性体７の移動を阻止するストッパ９と、を備え、第二磁性体７のストッパ９に当接する背面７ａとハウジング４の内面との間には、第二磁性体７が第一磁性体８から離間した開弁時に流路面積を絞る流路絞り部４５，９２ｂが形成されている。【選択図】図２