ELECTROPNEUMATIC VALVE Russian patent published in 1995 - IPC

FIELD: valving. SUBSTANCE: flanges made of a nonmagnetic material are provided at the middle part and at the one of the ends of the cylindric-conical housing. The flanges are interconnected through a nonmagnetic spacer. The winding is interposed between the flanges. The winding is provided with one or several leads made up as a plug or an electric cable. The winding is enclosed by magnetically conducting frame mated with the flange surfaces. The step through bore is made in the housing. The armature is mounted in the bore for permitting axial movement and shift with respect to the face of the winding. One end of the armature bears on the table secured at the one end of the housing. The other end of the armature abuts against a flexible member (spring). The other end of the spring is mated with the housing and arranged in the zone of the passageways for supplying and discharging air. The passageways are made up as one or several openings or grooves. The stop surface is made on the armature from the side of the flexible member. The surface is in contact with the answered surface of the housing when the valve is set in operation. As a result, the magnetic flux is closed and the passageways for supplying and discharging air are disconnected. EFFECT: enhanced reliability. 6 cl, 5 dwg