Patent ID: 7520488

Claim:
A two-port solenoid valve comprising: a solenoid-operation portion including an exciting coil wound around a bobbin, a fixed core accommodated inside a central hole of the bobbin, a cross-sectional shape of the fixed core being a rectangle extending in one direction, and a rectangular pole face provided at an end portion of the fixed core; a main valve portion including an elongate output orifice facing the interior of a valve chamber formed between the main valve portion and the solenoid-operation portion, a valve seat enclosing the circumference of the output orifice, and an input orifice facing the circumference of the valve seat; and a movable slender tabular valve member extending in one direction and accommodated inside the valve chamber, the valve member being attracted to the pole face of the fixed core so as to open the output orifice during energization of the exciting coil and being pressed against the valve seat by action of fluid pressure so as to close the output orifice when the energization is stopped, wherein a fluid chamber is formed for introducing pressurized fluid from the input orifice and being operated to apply the pressurized fluid to the valve member at a central position of a longer direction in the end portion of the fixed core, so as to divide the pole face into two by crossing the end portion in a shorter direction.