| 摘要 |
PURPOSE: An injector of an engine is provided to change the spraying type of fuel by reinforcing the output of an engine, enhancing fuel efficiency and reducing harmful exhaust gas depending on the operating situation of the engine. CONSTITUTION: An injector of an engine comprises a body(1), an electrical motor(3), a rotating rod(5), a fuel groove(7), and nozzle holes(11). The electrical motor is mounted on the body. The electrical motor consists of a step motor. The rotating rod rotates with the electrical motor in the body. The fuel groove is formed on the surface of the rotating rod. The nozzle hole is communicated with the fuel groove according to the rotation of the rotating rod at a nozzle unit of the body. The nozzle holes are formed in the circumferential direction according to the rotating direction of the rotating rod.
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