Diesel high pressure common rail EFI

The common rail technology refers to a kind of oil supply method, the injection pressure is generated and the injection process is completely separated from each other in a closed loop system composed of a high pressure oil pump, a pressure sensor and an ECU,and the high pressure fuel pump delivers the high pressure fuel to the common fuel supply pipe through the high pressure oil pump. The oil pressure in the common fuel supply pipe is precisely controlled,so that the pressure of the high pressure fuel pipe is independent of the engine speed,and the diesel fuel supply pressure can be greatly reduced as the engine speed changes, thereby reducing the defects of the conventional diesel engine.The EDU controls the fuel injection amount of the injector,and the amount of fuel injection depends on the length of the fuel rail(common fuel supply pipe)and the opening time of the solenoid valve.