What is high pressure common rail?
High-pressure common rail technology refers to a fuel supply method that completely separates the generation of injection pressure and the injection process in a closed-loop system composed of high-pressure fuel pumps, pressure sensors and ECUs. The high-pressure fuel pump delivers high-pressure fuel to the public fuel supply. Through precise control of the oil pressure in the common oil supply pipe, the pressure of the high-pressure oil pipe has nothing to do with the engine speed, which can greatly reduce the change of the diesel engine oil supply pressure with the engine speed, thus reducing the defects of the traditional diesel engine. . The ECU controls the fuel injection volume of the fuel injector. The fuel injection volume depends on the pressure of the fuel rail (common fuel supply pipe) and the opening time of the solenoid valve.
What is the use of high pressure common rail?
The high-pressure fuel pump delivers the fuel to the public fuel supply pipe, and directly injects the fuel into the cylinder by controlling the fuel injector. The high-pressure common rail completely separates the injection process and the generation of oil pressure, so that the oil supply pressure will not be affected by the engine speed.