| 제목 |
3중분사가 HSDI 디젤엔진의 성능과 배기에 미치는 영향 |
| 분야 |
엔진 및 연소 |
| 언어 |
Korean |
| 저자 |
최욱(한국과학기술원), 배충식(한국과학기술원), 박철웅(한국과학기술원), 국상훈(한국과학기술원) |
| Key Words |
Triple injection(3중분사), Pilot injection(파일럿분사), Main injection(주분사), After-injection(후분사), Common-rail(커먼레일), Diesel(디젤) |
| 초록 |
The effects of triple (pilot, main and after) injection on combustion and emission characteristics in a HSDI (High-Speed Direct Injection) diesel engine were investigated using a single-cylinder optical diesel engine equipped with a common-rail injection system. The pilot injection affected the spray and combustion evolution of the following main, injection. It was found that the pilot injection reduced the ignition delay, which led to lowered NOx (Nitric Oxides) level, and increased IMEP (Indicated Mean Effective Pressure) due to slow combustion pace during an expansion stroke. The after-injection was shown to be effective in reducing PM (Particulate Matter) even when a small amount of fuel was added. The results suggest that a proper combination of individual injection strategy could bring about a good synergetic effect on engine performance and emission. |
| 원문(PDF) |
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