FIELD: machine building.
SUBSTANCE: invention can be used in the internal combustion engines fuel supply systems. Disclosed are methods and systems for direct fuel injection. According to the invention, the fuel injector system comprises injector needle 205 with injector pin 210, note here that curvilinear fuel channel 204 communicated with fuel tank 212 arranged inside injector pin 210 along the entire length of curved fuel channel passes along injector pin outer surface. Drive 202 connected to injector needle 205 allows successive displacement and positioning of injector needle for setting in each of its positions of fluid communication between curvilinear fuel channel 204 and one or more nozzle openings 230, 238 of fuel injector with fuel outlet only through these nozzle holes.
EFFECT: invention minimizes interaction between fuel jets, improves fuel spraying, increases degree of mixing of fuel with air and combustion efficiency of fuel-air mixture.
20 cl, 8 dwg
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