The strengths of Cummins high pressure common rail engine

1. Admitting the ancestor's electronic control device, making the injection history control very convenient, and more controllable parameters, is conducive to the full optimization of the diesel combustion process, electronic control of the piezoelectric implementation of high switching valve frequency, to achieve a quick break Oil control, the control accuracy is very high, there will be no signs of air bubbles and residual pressure in the high-pressure oil circuit, so in the diesel engine operation range, the change of fuel injection volume per cycle is small, and the uneven oil supply of each cylinder is improved.

2. Admitting high-pressure common rail method for oil supply, the pressure of the fuel injection system is small, the mutual influence between the injectors is small, the pressure size is independent of the engine speed, the injection pressure control accuracy is high, the injection quantity control is correct, and the pressure is high. The fuel injection pressure in the common rail system is flexible, and the optimum injection pressure can be determined for differential operating conditions to optimize the comprehensiveness of the diesel fuel.

3.Adoption of electronically controlled high pressure common rail technology comprehensively optimizes the injection discipline of the diesel engine (close to aspiration, easy to achieve pre-injection and multi-injection, can independently control the injection timing flexibly, with full high injection pressure, can be controlled The smaller values ​​of nitrogen oxides and particulates meet the requirements for satisfactory emissions, while at the same time ensuring excellent dynamics and properties.