| 摘要 |
An injector for a diesel engine of a vehicle is provided to prevent deterioration of engine output by automatically washing a fuel injector nozzle and reducing the variation of flow rate in the injector. An injector for a diesel engine of a vehicle includes a housing(10), a driving shaft(20), a nozzle(30), and a driving unit. The housing is arranged on a combustion chamber of the engine. The driving shaft is arranged in the housing. The nozzle is arranged on the lower end of the driving shaft such that the nozzle corresponds to a fuel injection hole(32) formed at the lower end of the housing. The nozzle is equipped with a nozzle valve(34) for injecting fuel through a channel varying in accordance with the rotation of the driving shaft. The driving unit includes a rotation gear(43), a driving gear(41), and a bi-directional rotation motor(40). The rotation gear for rotating the driving shaft is rotatably mounted on the top of the driving shaft. The driving gear is engaged with the rotation gear, and the bi-directional rotation motor rotates the driving gear in both directions.
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