Multi-hole fuel injector with sequential fuel injection
Abstract:
Methods and systems are provided for direct fuel injection. In one example, a fuel injector system includes an injector needle with an injector pin with a curved fuel channel around the outer circumference of the injector pin, fluidically connected along the length of the curved fuel channel with a fuel reservoir inside the injector pin. An actuator coupled to the injector needle may sequentially move and position the injector needle to establish fluidic connection between the curved fuel channel and with one or more nozzle holes of the fuel injector at each position, discharging fuel from only those nozzle holes, thereby minimizing fuel spray interaction.
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