INTERNAL COMBUSTION ENGINE FUEL INJECTION DEVICE Russian patent published in 2001 - IPC

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: valve nozzle of proposed device has pusher to control nozzle valve member and to limit distributing space into which fuel at high pressure is constantly delivered through throttle. Pressure from this space can be relieved through distributing valve and drain channel. Distributing valve has valve member also. This valve member is controlled by piezoelectric drive to make valve member move towards distributing space when drain valve is opened. In closed position, pressure in distributing space acts onto valve member to provide its closing. EFFECT: reduced overall dimensions of piezoelectric drive, reduced consumption of energy. 19 cl, 10 dwg