LPLi 엔진 인젝터에서의 Icing 가시화 및 이의 유입이 연소와 배기가스에 미치는 영향 = Visualization of the Icing at LPLi engine injector and the effect of the inflow of icing into cylinder on the combustion and the exhaust gas

다국어 초록 (Multilingual Abstract)

Ever since air pollution issues have risen globally, each automobile manufacturer has been undergoing vigorous development for low emission vehicles. One of these researches is the use of clean fuel to reduce emission. And the development of the LPLi system is one of them. Compared to the conventional mixer system, the LPLi system can fine control the air fuel ratio, and thus resulting in outstanding emission reduction and power. But there are a few problems in the development. One of them is the Icing that occurs at the tip of the injector.<br/>
If an Icing particle enters the combustion chamber, it effects the combustion and has the following problems; When the Icing particles enter the cylinder, the visualization has been performed the intake manifold and the injector tip. And the analysis of the exhaust gas shows that HC, CO, and O₂ increases while CO₂ and NOχ decreases after the Icing particle flows in the cylinder. These results are similar to when the combustion is unstable, and a rich value of the air-fuel ratio also proves incomplete combustion.<br/>

목차 (Table of Contents)

• ABSTRACT
  
• 1.서론
  
• 2.실험 장치 및 방법
  
• 3.실험결과 및 고찰
  
• 4.결론
  
• 후기
  
• 참고문헌