Electromagnetic valve

Claim 1

An electromagnetic valve comprising: a valve case having a fluid inlet, a fluid outlet and a channel holding the inlet in communication with the outlet, the channel being provided with a valve seat, a valve stem having a closing member for blocking the channel by contact with the valve seat, a movable core supporting the valve stem movably to bring the closing member into or out of contact with the valve seat, a spring biasing the valve stem in a direction to bring the closing member into contact with the valve seat, a support comprising a hollow cylindrical portion and an attaching portion fixed to the valve case for supporting the movable core movably, a stationary core aligned with the movable core, an exciting coil surrounding the movable core and the stationary core, and a shading coil provided on an end surface of the stationary core which surface is opposed to the movable core, the stationary core having a small diameter at the end thereof provided with the shading coil, the cylindrical portion of the support extending toward the stationary core, the cylindrical portion being integrally formed with a disk portion in contact with the end surface of the stationary core and a projecting edge covering the periphery of the small-diameter end of the stationary core, the small-diameter end fitting in the projecting edge with the forward end of the projecting edge welded to the stationary core.