An Optical Method for Measuring the Dynamic Parameters of an Engine Injector
نویسنده
چکیده
An optical method to determine the dynamic parameters of the transient response of an engine injector during its opening has been presented in this article. The method is based on measuring the transparency of a space into which the fuel is injected. The transparency measurements are realised by an optical instrument, which consists of both a transmitter and a detector oflR. radiation. A pair of these devices is called an "optical barrier" in this paper. The velocity of a sprayed fuel charge from an injector can also be measured using two such "optical barriers". Furthermore, time signals from the photo-detector in the optical barrier have been presented. Information, obtained from these signals, determines the velocity ofthe injected fuel and the transient response of the injector.
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