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http://dx.doi.org/10.3795/KSME-B.2009.33.9.722

The Effect of the Intake Flow on the Spray Structure of a High Pressure 11-Hole Fuel Injector in a DISI Engine  

Kim, Seong-Soo (신라대학교 공과대학 자동차기계공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.33, no.9, 2009 , pp. 722-727 More about this Journal
Abstract
The effect of the intake flow on the spray structure of a high pressure 11-hole fuel injector were examined in a single cylinder optical direct injection spark ignition (DISI) engine. The effects of injection timing and in-cylinder charge motion were investigated using the 2-dimensional Mie scattering technique. It was confirmed that in the homogeneous charge mode, the in-cylinder swirl charge motion played a major role in the fuel spray distribution during the induction stroke rather than the tumble flow. But, in the stratified charge mode, the effect of the in-cylinder charge was not so large that the injected spray pattern was nearly maintained and the increase of in-cylinder pressure by the upward moving piston reduced the fuel spray penetration.
Keywords
Swirl Flow; Tumble Flow; 11-Hole Injector; Direct Injection Spark Ignition; Spray Structure; Mie Scattering Technique;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 0
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