METHOD OF FUEL SUPPLY CONTROL AND FUEL SUPPLY CONTROL UNIT Russian patent published in 2017 - IPC F02M61/16 F02M47/02 F02D7/00 F02M45/08 

FIELD: engines and pumps.

SUBSTANCE: invention can be used in internal combustion engine fuel feed systems. Diesel proposed method and device for controlling fuel delivery to mobile or stationary equipment truck. An apparatus for controlling the fuel supply nozzle includes a needle spring 4 without, with multiple mechanical valves 19-22 to shift from one position to another, the sprayer 1 with two levels of holes 2, 3. The nozzle is connected to a hydraulic accumulator of low pressure (HALP) through the channel 9, 19 overlap the first valve. The camera control unit 13 of the nozzle sleeve is connected with HALP through the channel 15, overlaps the second 20 valve, spring-loaded with the ability to perform a joint movement to the upper-end position with the first valve. Camera Control 6 under the needle injectors 4 connected to a hydraulic accumulator with high pressure (HAHP) through the channel, overlapped the third valve 21. Camera control 12 a sleeve 10 is connected to a nozzle through a channel HAHP overlapped fourth valve 22, made a spring-loaded with a joint motion to the upper-end position with the third valve. Mechanical valves 19-22 are connected to the lever 18 with the drive shaft 17, which is controlled by a shaft 31 provided with cams 32-34 different profiles. Each of the cams for one of the stages of the multistage injection.

EFFECT: device for better dynamics of fuel feed, higher indicated efficiency and controlled injection using simple mechanical means.

2 cl, 4 dwg