An investigation of the effect of microflow machining on the spray characteristics of diesel injectors was undertaken. A collection of four VCO injector tips were tested prior to and after an abrasive flow process using a high viscosity media. The injector nozzles were tested on a spray fixture. Rate of injection measurements and high-speed digital images were used for the quantification of the air entrainment rate.Comparisons of the spray characteristics and A/F ratios were made for conditions of before and after the abrasive flow process. Results showed a significant decrease in the injection-to-injection variability and improvement of the spray symmetry. A link between the quantity of air entrained and potential differences in spray plume internal chemical composition and temperature is proposed via equilibrium calculations.
Investigation of MicroFlow Machining Effects on Diesel Injector Spray Characteristics
Sae Technical Papers
SAE 2004 World Congress & Exhibition ; 2004
2004-03-08
Conference paper
English
Investigation of MicroFlow Machining Effects on Diesel Injector Spray Characteristics
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