ELECTROMAGNETIC VALVE Russian patent published in 1994 - IPC

FIELD: manufacture of fittings. SUBSTANCE: suction line of fuel injection pump connects working chamber of pump with fuel reservoir. Arranged movably inside housing provided with electromagnet coil with fixed pole are armature and main shut-off member connected with it. Armature and shut-off member are pressed to the seat by means of spring. Shutoff member is provided with passage with brings in communication sections of suction line before and after the seat. Mounted in this passage is additional shut-off member loaded by additional spring against pressure in the section of suction line on side of pump working chamber. main shut-off member is provided with bearing surface for additional spring. EFFECT: enhanced efficiency. 6 cl, 3 dwg