Patent ID: 7040596
Filing Date: 2006-05-09
Classification: F16K,Y10T

Abstract:
1. A solenoid valve for discharging a reactant gas from a fuel cell, comprising: a valve housing having a first port for introducing the reactant gas and a second port for discharging the reactant gas introduced from said first port; a solenoid unit disposed in a casing joined to said valve housing, said solenoid unit being energizable by a current; a shaft axially displaceable when said solenoid unit is energized; a valve head disposed in said valve housing and engaging an end of said shaft; a valve seat, said valve head being seatable on and unseatable from said valve seat when said shaft is displaced; a diaphragm attached to said shaft, said diaphragm being flexible in response to displacement of said shaft; and a restriction disposed in said first port and having an orifice for restricting a flow rate of the reactant gas introduced into the first port, wherein said first port has a passage defined therein in communication with a chamber in which said valve head is disposed, said passage housing a filter disposed therein, said restriction being disposed adjacent to said filter upstream thereof.