What is diesel high pressure common rail system?

In our world, there are hundreds of diesel engine manufacturers, each brand of diesel engine fuel, its fuel injection system is not only two kinds, one is mechanical fuel injection system, the other is electronically controlled fuel High pressure common rail injection system. The mechanical fuel injection system uses a traditional mechanical fuel pump, which is driven by a camshaft. The pressure of the fuel injection increases with the increase of engine speed and fuel injection. The diesel system has unstable atomization effect and cold start. Difficulties and other issues, but also unable to meet the increasingly stringent emission standards and the desire to reduce fuel consumption. Electronically controlled diesel high pressure common rail system. It has a higher injection pressure, better atomization, lower fuel consumption and cleaner emissions.

The function of the high pressure pump is to compress the fuel from a low pressure state through a plunger to a high pressure state to meet the fuel injection pressure and fuel injection requirements of the system and the engine.