Fabrication and Characterization of Micro-Orifices for Diesel Fuel Injectors

Event
2008 SAE International Powertrains, Fuels and Lubricants Congress
Authors Abstract
Content
Stringent emission standards are driving the development of diesel-fuel injection concepts to mitigate in-cylinder formation of particulates. While research has demonstrated significant reduction in particulate formation using micro-orifice technology, implementation requires development of industrial processes to fabricate micro-orifices with diameters as low as 50 μm and with large length-to-diameter ratios. This paper reviews the different processes being pursued to fabricate micro-orifices and the advanced techniques applied to characterize the performance of micro-orifices. The latter include the use of phase-contrast x-ray imaging of electroless nickel-plated micro-orifices and laser imaging of fuel sprays at elevated pressures. The experimental results demonstrate an industrially viable process to create small uniform orifices that improve spray formation for fuel injection.
Meta TagsDetails
DOI
https://doi.org/10.4271/2008-01-1595
Pages
10
Citation
Fenske, G., Woodford, J., Wang, J., El-Hannouny, E. et al., "Fabrication and Characterization of Micro-Orifices for Diesel Fuel Injectors," SAE Int. J. Fuels Lubr. 1(1):910-919, 2009, https://doi.org/10.4271/2008-01-1595.
Additional Details
Publisher
Published
Jun 23, 2008
Product Code
2008-01-1595
Content Type
Journal Article
Language
English