Patent ID: 6808160
Filing Date: 2004-10-26
Classification: B60T,F16K,H01F

Abstract:
A solenoid valve comprising:a sleeve formed in a cup-like shape having a cylindrical portion and a bottom face, with one end side of the sleeve being an opening portion; a coil provided on an outer periphery of the sleeve; a plunger that is housed in the sleeve and for performing a sliding movement in the sleeve by applying current to the coil, wherein the plunger includes a vertical groove formed on an outer peripheral surface thereof along a sliding direction and a groove portion that is formed on an outer peripheral surface of the plunger around an outer periphery thereof; a valve body which moves in accordance with the sliding movement of the plunger; a seat valve having a valve seat which the valve body seats on and separates from, and a communication path that is opened and closed when the valve seat seats on and separates from the valve seat; a cylindrical member provided with a communication path having an orifice that enables fluid to move in a sliding direction of the plunger is fitted into the groove portion; and a positioning portion restricting movement of the cylindrical member in a peripheral direction of the plunger is provided in at least one of the plunger and the cylindrical member, wherein the cylindrical member is assembled to the plunger such that the positioning portion aligns the vertical groove with the communication path having the orifice.