VALVE WITH COMBINATION SEAT AND DISK SPRAYER Russian patent published in 2002 - IPC

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: invention relates to valve nozzles for fuel injection system of internal combustion engines. Valve, particularly, valve nozzle has seat made on body and engaging with controllable shutoff element to provided tight fitting, and disk sprayer with at least one spray hole. Seat body and disk sprayer are made integral from flat pressure-molded blank being sheet metal part molded into cup to which idle shutoff element tightly fits in seat zone when valve is closed. Part forms disk sprayer on section along flow path behind the seat. Sprayer has at least one spray hole. Seat body on section of seat location has support surface. Flat blank in direction of flow path before support surface is formed into guide section providing directed displacement of shutoff element being set into action. EFFECT: simplified design, reduced cost and material usage, improved sealing. 11 cl, 4 dwg