Technical Paper
Influence of Nozzle Parameters on Single Jet Flow Quantities of Multi-Hole Diesel Injection Nozzles
2006-03-01
2006-01-1983
A separate measurement of these single jet flow injection quantities is absolutely necessary for the evaluation of the injection nozzles. However, so far this has not been possible in a satisfying way [7, 9]. A measuring adapter for determination of the injection quantities for individual spray hole was developed here. With measuring adapter the influence of variation in shape and geometry of the individual nozzle components on single jet flow injection quantities can be determined. The measurements are supported by simulation results. The spray hole shape is crucial for flow coefficient and cavitation in the spray hole. During fuel atomization the diameter and shape of the injecting holes and the pattern realized by the nozzle needle in addition to the injection pressure play a substantial role.
