INTERNAL COMBUSTION ENGINE ELECTROMAGNETIC NOZZLE Russian patent published in 2002 - IPC

FIELD: mechanical engineering; engines. SUBSTANCE: invention relates to electrically controlled fuel injection devices for gasoline engines. Proposed electromagnetic nozzle for integral combustion engine has body accommodating spray tip and electromagnetic coil with armature and core secured to body. Armature is press-fitted onto spray tip needle shank being installed with clearance relative to core. Shutoff spring pressed to armature is installed in axial hole of core, and interference-fitted self-locking adjusting element is installed in threaded part of core. Shutoff spring and self-locking adjusting element are made in form of single elongated spring, part of which, used for locking, is arranged in threaded hole of core and is provided with radially bent off end coil. Rotary axial displacement of spring in process of adjustment is provided by radially bent end coil. EFFECT: provision of simple and functionally effected device. 1 dwg