VALVE-TYPE NOZZLE Russian patent published in 2002 - IPC

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: invention relates to fuel devices of internal combustion engine and can used in automotive industry. Proposed nozzle has working space, locking member with valve and plunger part, valve seat in form of box, locking member drive and mechanism for tuning locking member around longitudinal axis. Plunger sleeve is secured on valve stem. Sleeve rests against valve head and it provided with semiblind slots whose open end is pointed to valve head. Box enclosing plunger sleeve is provided with semiblind slots pointed with open end to working space. Slots of plunger sleeve can be connected with slots of box at turning of locking member. EFFECT: increased economy in operation at partial loads by changing optimum injection of fuel into combustion chamber to suit operating conditions. 2 cl, 12 dwg