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ID 51076
file
creator
Uchitomi, Shintaro
Zhang, Wu
Fujikawa, Tatsuya
subject
Gasoline engine
fuel adhesion
impinging spray
impingement distance
injection pressure
abstract
Direct injection is an attractive technology for improving fuel economy and engine performance in gasoline engines. However, the adhered fuel formed on the piston surface has significant influence on the combustion efficiency and emissions. To obtain a better understanding of fuel adhesion, this work involved investigation of the spray and impingement on a flat wall through a mini-sac injector with a single hole. Different impingement distances and injection pressures were investigated. The evolution of the impinging spray was obtained by the Mie scattering method. The refractive index matching method was applied to measure fuel adhesion. The mass, area, and thickness of adhesion under different conditions were compared. The experimental results show that the fuel adhesion on the wall increases significantly with a large impingement distance. Moreover, the maximum thickness increases and the thickness uniformity of the fuel adhesion declines under a large impingement distance condition.
journal title
International Journal of Engine Research
volume
Volume 21
issue
Issue 5
start page
742
end page
754
date of issued
2020-06-01
publisher
SAGE Publications
issn
1468-0874
2041-3149
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Luo H, Nishida K, Uchitomi S, Ogata Y, Zhang W, Fujikawa T. Effect of spray impingement distance on piston top fuel adhesion in direct injection gasoline engines. International Journal of Engine Research. 21(5), pp.742-754. Copyright © 2020 Authors. doi:10.1177/1468087418774175
This is not the published version. Please cite only the published version. この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。
relation url
department
Graduate School of Advanced Science and Engineering