ELECTROMAGNET VALVE FOR FUEL INJECTION Russian patent published in 1994 - IPC

FIELD: engine engineering. SUBSTANCE: electromagnet valve for fuel injection has case 3 with space 4 and sprayer secured in case 3. The sprayer is provided with guide cylindric passage 7, conical seat 8 and at least one spraying opening 9 which is in communication with guide cylindrical passage 7. Valving member 10 provided with ball member 12 is positioned within space 4 of case 3 for axial movements and overlapping of the sprayer opening. The sprayer is provided with ring groove 22 positioned between conical seat 8 and guide cylindrical passage 7 on internal surface of the passage. Swirling grooves 16 can be provided on internal surface of guide cylindrical passage 7 using pressing. EFFECT: enhanced reliability. 3 cl, 2 dwg