Original new diesel engine spare part fuel injector 0445120273

The common rail injection fuel supply system is composed of high-pressure oil pump, common oil supply pipe, injector, electronic control unit (ECU) and some pipeline pressure sensors. Each injector in the system is connected with the common oil supply pipe through its own high-pressure oil pipe, and the common oil supply pipe plays a role of hydraulic pressure storage for the injector. During operation, the high-pressure oil pump delivers the fuel to the common oil supply pipe with high pressure. The high-pressure oil pump, pressure sensor and ECU work in a closed-loop manner, which can accurately control the oil pressure in the common oil supply pipe, and completely change the phenomenon that the fuel supply pressure changes with the engine speed. Its main characteristics are as follows:

1. The fuel injection timing and fuel metering are completely separated, and the injection pressure and injection process are timely controlled by ECU.

2. According to the working conditions of the engine, the injection pressure, injection starting point and duration can be adjusted to achieve the best control point.

3. It can realize high injection pressure and pre injection of diesel

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