| 제목 |
포트 마스킹에 따른 엔진 부분부하 성능 특성 |
| 분야 |
엔진 및 연소 |
| 언어 |
Korean |
| 저자 |
김형식(서울과학기술대학교), 엄인용(서울과학기술대학교), 박찬준(서울과학기술대학교), 김인옥(서울과학기술대학교) |
| Key Words |
Lean misfire limit(희박연소한계), Port masking(포트 마스킹), Stratification(성층화), Swirl(와류), Brake specific fuel consumption(제동연료소비율) |
| 초록 |
To expand lean misfire limit and improve combustion stability, the effects of port masking were estimated to secure basic data for applying the mechanism to SI engine instead of asymmetrical port and port throttling devises. For this purpose, various shapes and ratios of masking plates were mounted between port and manifold. The masking effects were evaluated by mixture response test under various load and speed conditions. The results showed that lean misfire limits were expended and fast combustion was observed for all masking shapes and ratios, especially, the effect of diagonal 1/4 masking was remarkable. In conclusion, the port masking method could be easily applied to engine without redesign of port for improving part load performance. |
| 원문(PDF) |
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