ELECTROHYDRAULIC NOZZLE WITH ADDITIONAL CONTROL CHAMBER FOR INCREASED STABILITY OF OPERATION Russian patent published in 2024 - IPC F02M61/20 F02M47/00 F02M47/02 F02M57/02 F02M61/10 F02M61/16 

FIELD: engine building.

SUBSTANCE: invention relates to power supply systems of internal combustion engines of accumulator type with electronic control. Proposed electrohydraulic nozzle comprises body 2 with a group of body parts, in which there are fuel supply 3 and drain 4 channels, valve 14 with electric drive and inlet channel 15. Valve has the possibility of connecting the inlet channel with the drain channels. Nozzle has a sprayer with at least one spraying hole 16 and needle 17. Nozzle comprises control chamber 21 arranged between needle end face and body 2 with body parts. By means of inlet channel 22 with inlet jet 23, control chamber 21 is connected with fuel supply channels 3, and through outlet channel 24 with outlet jet 25, control chamber 21 communicates with inlet channel 15. In addition, the nozzle is equipped with an additional blind control chamber 40, an additional plunger multiplier 41 for locking the needle, to form a movable precision interface with body parts, located so that one end of additional multiplier 41 faces the additional control chamber 40, and the other end rests against needle 17.

EFFECT: more stable formation of a given, in particular hollow, front profile and a steep rear profile of the law of supply, to reduce emission of harmful substances with exhaust gases and increase efficiency of piston engines.

1 cl, 4 dwg