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柴油发动机喷油嘴0433172108共轨油咀DLLA138P920

共轨油嘴工作原理GS 5NY3004 83 22 69

‌高压油泵‌将燃油输送到共轨中，形成高压燃油储备。

‌油嘴‌根据发动机的需求，从共轨中抽取燃油并喷入燃烧室。

‌电控单元（ECU）‌实时监测发动机的工作状态，智能调节油嘴的开闭，确保喷油压力、喷油量和喷油时机的精准控制‌。

Inside the nozzle body is the nozzle needle which, when closed, blocks the injection orifices. For fuel injection, the nozzle needle is raised by the hydraulic servo system of the injector so that the injection orifices are opened. The faster the nozzle needle can be opened and re-closed, the more precisely the injection rate can be controlled.

不同类型的喷油嘴具有不同的喷雾锥角，这是由其制造形状所决定的。在检查或更换喷油嘴时，可以通过观察喷雾锥角的变化来判断其是否磨损或型号是否一致。标准的喷雾对比试验也是检验喷雾锥角的重要手段‌。

Injection nozzles for diesel engines inject the fuel into the combustion chamber, atomize it and seal the combustion chamber by means of the nozzle needle. In the Common Rail System, the injection nozzle is part of the injector.