The Water-Cooled Volkswagen PCI-Stratified Charge Engine 750869

The development of a 1600 can SCE with a divided combustion chamber and fuel injection into the prechamber ist described. Mathematical simulation was used to study the influence of several parameters. Single and multi-cylinder engine tests were carried out to determine the most suitable fuel mass fraction for the prechamber. The effectiveness of the lean thermal reactor was measured. Vehicles were tested accordingly to the CVS-procedure. PNA emissions and octane requirements were also determined. Some limited testing was done with methanol fuel. During the test Programm no specific problems on components were encountered.


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