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The new BMW four-cylinder diesel engine

Part 1: Concept, mechanics and mixture formation

Der neue Vierzylinder-Dieselmotor von BMW

Teil 1: Konzept, Mechanik und Gemischbildung

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The 2.0 l four-cylinder diesel engine is one of the most important engine variants for BMW in Europe. It is used extensively throughout the model ranges. In addition to the 1 Series, 3 Series and 5 Series, it is also a popular choice of engine in the BMW X3. In order to expand on the strong competitive position achieved to date and to create the best possible prerequisites for meeting the demanding requirements of the future, a completely new engine has been developed for this important segment. Besides increasing the power output, by fitting an all-aluminium crankcase, it also has been possible to significantly reduce weight. According to the BMW philosophy of “efficient dynamics”, the new engine concept has been focused on minimising frictional loss and providing unsurpassed thermodynamic efficiency. As a world first, a piezo-common rail fuel injection system with a maximum injection pressure of 2000 bar is used for the first time in a passenger car diesel engine, i.e. as on the top variant of the new four-cylinder diesel engine family.

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  1. [1]

    Steinparzer, F.; Mattes, W.; Nefischer, P.; Wichtl, R.: Der neue 2.0l 4-Zylinder Dieselmotor von BMW. 28. Internationales Wiener Motorensymposium, 2007

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    Steinparzer, F.; Kratochwill, H.; Mattes, W.; Stütz, W.: Zweistufige Abgasturboaufladung am BMW 3,0 Liter Sechszylinder-Dieselmotor. Aachener Kolloquium Fahrzeug- und Motorentechnik, 2004

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    Mattes, W.; Nefischer, P.; Steinparzer, F.: Neu überarbeitete Dieselmotoren für die BMW 7er Reihe. 26. Internationales Wiener Motorensymposium, 2005

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Steinparzer, F., Mattes, W., Nefischer, P. et al. The new BMW four-cylinder diesel engine. MTZ Worldw 68, 6–10 (2007). https://doi.org/10.1007/BF03226865

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