Common Rail Systems to Achieve Oncoming EU Emission Standards

Authors

Dr.-Ing. S. Kampmann, Dr.-Ing. U. Dohle, Dr.-Ing. J. Hammer, Dipl.-Ing. F. Boecking, Robert Bosch GmbH, Stuttgart

Year

2005

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 595

Summary

Lowest raw emissions in combination with highest engine performance, a gasoline engine like noise level at still unbeatable low fuel consumption – these are the requirements for future Diesel applications. In this context surely one of the highest challenges will be the oncoming EU emission legislation. To match these requirements highest accuracy in metering fuel injection quantities into the combustion chamber are required. Here also in future modern Common Rail injection systems will play a key role in the Diesel technology. The functional range of the BOSCH Common Rail systems from the second up to the fourth generation supplies a vehicle manufacturer with an extensive portfolio of injection technology to match those targets in combination with engine and exhaust gas treatment measures. Minimizing the raw emissions over the vehicle lifetime additional measures for further im-provement of the Common Rail system’s robustness are necessary. An overall approach is introduced and, employing the example of the 3rd generation CRS from BOSCH, the main features on component, process and system level are discussed.

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