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http://dx.doi.org/10.15435/JILASSKR.2020.25.4.145

Study on Spray Characteristics of Single-Hole GDI Injector according to Nozzle Hole Diameter - (1) Comparison of Injection and Macroscopic Spray Characteristics  

Park, Jeonghyun (전남대학교 일반대학원 기계공학과)
Ro, Seungcheon (현대케피코, 제품설계 2팀)
Chang, Mengzhao (전남대학교 일반대학원 기계공학과)
Park, Suhan (전남대학교 기계공학부)
Publication Information
Journal of ILASS-Korea / v.25, no.4, 2020 , pp. 145-153 More about this Journal
Abstract
The purpose of this study is to compare the injection and spray characteristics of single-hole GDI injectors using injection rate and mie-scattering spray images. Five types of single-hole injectors with different nozzle hole diameters were used, and the spray rate, spray tip penetration, spray area, and spray width were analyzed. As a result, the diameter of the nozzle hole had a direct effect on the injection and spray characteristics. It was confirmed that the larger the diameter of the nozzle hole, the higher the injection quantity, the spray tip penetration, the spray area, and the spray width. In addition, it was confirmed that the near-field spray, which has little influence of ambient air, has a great correlation with the injection rate.
Keywords
Gasoline direct injection(GDI); Single-hole injector; Injection rate; Bosch method; Mie-scattering; Spray characteristics;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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