Quantitative Measurements of Direct-Injection Gasoline Fuel Sprays in Near-Nozzle Region Using Synchrotron X-Ray
Date Published: 2001-03-05
Paper Number:2001-01-1293
DOI: 10.4271/2001-01-1293
Citation:
Yue, Y., Powell, C., Poola, R., Wang, J. et al., "Quantitative Measurements of Direct-Injection Gasoline Fuel Sprays in Near-Nozzle Region Using Synchrotron X-Ray," SAE Technical Paper 2001-01-1293, 2001, doi:10.4271/2001-01-1293.
A quantitative and time-resolved technique has been developed to probe the dense spray structure of direct-injection (DI) gasoline sprays in near-nozzle region. This technique uses the line-of-sight absorption of monochromatic x-rays from a synchrotron source to measure the fuel mass with time resolution better than 1 μs. The small scattering cross-section of fuel at x-rays regime allows direct measurements of spray structure that are difficult with most visible-light optical techniques. Appropriate models were developed to determine the fuel density as a function of time.
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