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Tomography of a GDI Spray by PolyCO Based X-Ray Technique
Technical Paper
2013-24-0040
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In this paper the investigation with X-ray Tomography on the structure of a gasoline spray from a GDI injector for automotive applications based on polycapillary optics is reported. Table-top experiment using a microfocus Cu Kα X-ray source for radiography and tomography has been used in combination with a polycapillary halflens and a CCD detector. The GDI injector is inserted in a high-pressure rotating device actuated with angular steps Δθ = 1° at the injection pressure of 8.0 MPa. The sinogram reconstruction of the jets by slices permits a 360° spray access to the fuel downstream the nozzle tip. A spatial distribution of the fuel is reported along the direction of six jets giving a measure of the droplet concentration in a circle of 16 mm2 below the nozzle tip at atmospheric backpressure and ambient temperature.
Authors
Citation
Allocca, L., Dabagov, S., Hampai, D., Marchitto, L. et al., "Tomography of a GDI Spray by PolyCO Based X-Ray Technique," SAE Technical Paper 2013-24-0040, 2013, https://doi.org/10.4271/2013-24-0040.Also In
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