FIELD: machine building.
SUBSTANCE: invention can be used in the internal combustion engines fuel supply systems. In one example, a fuel injector system includes nozzle needle 205 with nozzle 210 of a nozzle with a curved fuel channel 204 of a non-uniform width along an outer circumference of injector pin 210, hydraulically connected along length of curved fuel channel 204 with fuel tank 212 inside nozzle pin. Drive 202 connected with nozzle needle 205 may move and position injector needle 205 in series to establish hydraulic connection between curved fuel channel 204 and one or more nozzle orifices 230–245 of fuel injector in every position.
EFFECT: duration of hydraulic connection in each position is based on width of curvilinear fuel channel and can define volume of fuel released only from these nozzle holes, thus reducing interaction of fuel jet and increasing degree of spraying of fuel jet, which contributes to improvement of fuel combustion and reduction of toxicity of spent gases.
7 cl, 11 dwg
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