Common-rail system with piezo injectors

CRS3-27 – powerful, economical and designed for the future

Diesel drive systems with common-rail injection systems combined with efficient exhaust-gas treatment can form the basis for economical vehicles. The primary advantage of the diesel common-rail system is the enormous flexibility of the injection pressure and the injection timing, which is achieved by separating the pressure generation and injection systems.

The fuel is permanently maintained at a high pressure ready for injection. The pressure is generated by the high-pressure pump. The fuel rail mounted on the engine serves as a high-pressure accumulator. From here, the fuel is distributed to the individual injectors. An injector with injection nozzle is integrated into each engine cylinder. The injection timing and fuel quantity are calculated and controlled individually for each cylinder.

Pre-heat systems

Diesel engines can start even faster and quieter with Bosch pre-heat systems. In combination with an optimized injection strategy, pre-heat systems can improve the performance of cold engines and reduce emissions. They can also assist heating of the particle filter during regeneration.

Fuel supply

The electronic engine control can enable the delivery of the required quantity of fuel from the tank to the high-pressure pump at a pressure of 5 to 6 bar in line with requirements.