VALVE NOZZLE Russian patent published in 2004 - IPC

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: invention relates to valve nozzles designed for direct injection of fuel into engine combustion chamber. Proposed valve nozzle has excited drive element, shutoff element axially movable along longitudinal axis of nozzle interacting with fixed seat to open and close nozzle. Seat is located on seat forming element. Nozzle is provided with swirling disk insert arranged in direction of fuel flow directly over seat. Nozzle is furnished also with guide element arranged in direction of fuel flow higher then said swirling insert. Said guide element has inner guide hole for shutoff element passing through said guide hole. Guide element, swirling insert and seat forming element are rigidly interconnected by permanent joint. EFFECT: easy and accurate assembling of nozzle. 19 cl, 19 dwg