The common rail system is one of the most sustainable fuel injection systems due to its unique advantages. The high-pressure common rail system realizes the separation of pressure build-up and injection process, so that the control process is more flexible, can more accurately realize the precise control of small oil volume, and better realize multiple injections.

The suction control valve (fuel inlet metering valve) is one of the most important components in the diesel engine fuel supply system, and it is the most important part of the throat.