Electromagnetic valve

摘要

An electromagnetic valve comprising has a valve seat, a valve element movable relative to the valve seat so as to open or close a hydraulic fluid passage interposed therebetween and a plunger movable together with the valve element relative to the valve seat, wherein the valve element includes a sealing portion having an arc-shaped vertical cross section that contacts with the valve seat and an expanding diameter portion having a diameter gradually increasing in a direction from the sealing portion toward the plunger.