Electronically Controlled High Pressure Unit Injector System for Diesel Engines 911819
To achieve the future emissions regulations with low particulate and Nox levels, both the engine combustion system and the fuel injection equipment will have to be improved. For the fuel injection equipment, high injection pressure and variable injection timing as a function of engine speed, load, and temperature are of great importance. BOSCH is developing two different solutions:
electronically controlled unit injector and single cylinder pump systems,
high-pressure inline pumps with control sleeve and electronic control.
This paper describes:
the unit injector and its high-pressure solenoid valve
the requirements for the mounting of the unit injector in the engine
the low-pressure system
the electronic control unit and the metering strategy
Citation: Lauvin, P., Löffler, A., Schmitt, A., Zimmermann, W. et al., "Electronically Controlled High Pressure Unit Injector System for Diesel Engines," SAE Technical Paper 911819, 1991, https://doi.org/10.4271/911819. Download Citation
Author(s):
Pierre Lauvin, Alf Löffler, Alfred Schmitt, Werner Zimmermann, Walter Fuchs
Affiliated:
Robert Bosch GmbH
Pages: 15
Event:
International Off-Highway & Powerplant Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1991 Transactions - Engines-V100-3
Related Topics:
Electronic control units
Fuel injection
Environmental regulations and standards
Pumps
Combustion and combustion processes
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