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조기 흡기 밸브 닫힘과 분사시기 변경을 통한 가솔린 직분사 엔진에서의 혼합기 형성 및 난류특성에 관한 수치적 연구

Title
조기 흡기 밸브 닫힘과 분사시기 변경을 통한 가솔린 직분사 엔진에서의 혼합기 형성 및 난류특성에 관한 수치적 연구
Other Titles
Numerical Study on Mixture Formation and Turbulent Characteristics in a GDI Engine for Various Intake Valve Closing and Injection Timings
Author
박성욱
Keywords
Gasoline Direct Injection; Early Intake Valve Closing; Injection Timing; Spark Ignition Engine; Fuel-Air Mixture
Issue Date
2014-05
Publisher
한국연소학회
Citation
2014년도 한국연소학회 제48회 춘계학술대회 KOSCO SYMPOSIUM 초록집, 2014, 2014(5), P.169-170
Abstract
Early intake valve closing was purposed to reduce pumping lose in a gasoline directinjection engine. Reduced turbulence intensity was supplemented by injecting fuel. To compare effects of applying early intake valve closing, throttling case was alsoinvestigated. Early intake valve closing induces high turbulence kinetic energy. However, throttling case has higher turbulence kinetic energy than throttling case at TDC. Late injection intensifies turbulence intensity in both case while it reduces fuel-air mixture homogeneity.
URI
http://www.dbpia.co.kr/Journal/ArticleDetail/NODE02440186http://hdl.handle.net/20.500.11754/54187
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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