ELECTROMAGNETIC FUEL NOZZLE Russian patent published in 1999 - IPC

FIELD: mechanical engineering; fuel devices of internal combustion engines. SUBSTANCE: electromagnetic nozzle has case 1, coil 2, core 3, armature 4 connected with valve 6 and diaphragm 5 placed in between. Nonmagnetic ring spacer 10 is installed between core and case. End of spacer projects beyond core end face 11 and provides preset travel of armature preventing its sticking. Valve is made spherical and is rigidly secured in armature locking it on diaphragm. Magnetic ring insert surrounds armature whose diameter exceeds diameter of core end face. EFFECT: improved dynamic characteristics of nozzle owing to prevention of sticking of armature, increased service life and enhanced tightness of nozzle. 4 cl, 1 dwg