ELECTROMAGNETIC VALVE FOR INJECTION OF FUEL Russian patent published in 1997 - IPC

FIELD: manufacture of engines; electromagnetic injectors for pulse feed of fuel. SUBSTANCE: electromagnetic valve has casing, spring-loaded pusher with shut-off members mounted in bush with seat and movable stem connected with armature. Bush is provided with longitudinal splined bores. Pusher is cruciform in cross section forming four ribs provided with bores. Magnetic circuit has armature and housing made from electrical-sheet common steel. Surface layer of steel is saturated with nitrogen, carbon and oxygen. Parts of magnetic circuit are made with magnetic anisotropy in direction of working magnetic flux. Casing, bush, stem and pusher are made from aluminium alloy with surface layer of aluminium oxide. EFFECT: enhanced reliability. 2 dwg