Journal of ILASS-Korea (한국분무공학회지)
- Volume 4 Issue 4
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- Pages.9-16
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- 1999
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- 1226-2277(pISSN)
- /
- 2288-9051(eISSN)
Comparision of Spray Angles of Pintle-Type Gasoline Injector with Different Measuring Methods
측정방법에 따른 핀틀형 가솔린 인젝터의 분무각 비교
- Kim, K.J. ;
- Rhim, J.H. ;
-
No, S.Y.
;
- Moon, B.S. ;
- Kim, J.Y. ;
- Kang, K.G.
- 김재호 (충북대학교 대학원) ;
- 임정현 (충북대학교 대학원) ;
-
노수영
(충북대학교 농업기계공학과) ;
- 문병수 (충북대학교 기계공학과) ;
- 김주영 (KEFICO 기술연구소) ;
- 강경균 (KEFICO 기술연구소)
- Published : 1999.12.31
Abstract
Spray angle, a parameter which is most commonly used to evaluate. spray distribution, is important because it affects the axial and radial distribution of the fuel. Spray angles were measured and compared for the pintle-type gasoline fuel injector with n-heptane as a test fuel with the three different measuring techniques, i.e. digital image processing, shadowgraphy and spray patternator, respectively. Fuel was injected with the injection pressures of 0.2-0.35MPa into the room temperature and atmospheric pressure environment. In digital image processing method, the transmittance level greatly influences the spray angle with the axial distance from the injector. From the experimental results by the shadowgraphy technique, it is obvious that the spray angle vary during the injection period. The results of spray angle from the spray patternator show that there exist the different spray angles in the different areas. The spray angles increase with the increase in the injection pressure for the three measurement techniques considered in this study. The spray angle is widely different, especially in the near region from the injector, according to the measurement techniques used in this experimental work.
Keywords