Fuel Distribution and Mixture Formation Inside a Direct Injection SI Engine Investigated by 2D Mie and LIEF Techniques 1999-01-3659
Two-dimensional Mie and LIEF techniques were applied to investigate the spray propagation, mixture formation and charge distribution at ignition time inside the combustion chamber of a direct injection SI engine. The results obtained provide the propagation of liquid fuel relative to the piston motion and visualize the charge distribution (liquid fuel and fuel vapor) throughout the engine process. Special emphasis was laid on the charge distribution at ignition time for stratified charge operation. By means of a LIEF technique it was possible to measure cyclic fluctuations in the fuel vapor distributions which explain the occurrence of misfiring.
Citation: Wagner, V., Ipp, W., Wensing, M., and Leipertz, A., "Fuel Distribution and Mixture Formation Inside a Direct Injection SI Engine Investigated by 2D Mie and LIEF Techniques," SAE Technical Paper 1999-01-3659, 1999, https://doi.org/10.4271/1999-01-3659. Download Citation
Volker Wagner, Wolfgang Ipp, Michael Wensing, Alfred Leipertz
International Fuels & Lubricants Meeting & Exposition
Gas Direct Injection Engines-SP-1475, SAE 1999 Transactions - Journal of Fuels and Lubricants-V108-4