Gasoline Distribution Measurements with PLIF in a SI Engine

Paper #:
  • 922355

Published:
  • 1992-10-01
Citation:
Baritaud, T. and Heinze, T., "Gasoline Distribution Measurements with PLIF in a SI Engine," SAE Technical Paper 922355, 1992, https://doi.org/10.4271/922355.
Pages:
15
Abstract:
A laser induced fluorescence (LIF) technique to visualize the gasoline distribution in port injection spark ignition engines is presented. A dopant is selected according to a list of criteria required to make it a good tracer of the gasoline. This dopant, biacetyl, is shown to provide quantitative measurement in relative value. The LIF technique is applied for two-dimensional laser sheet imaging in a model engine with optical access. Extensive data processing is developped and used for a quantitative characterization of the mixing level. The effect of compression, injection timing, engine speed, and type of flow field on the mixture homogeneity is investigated.
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