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논문 기본 정보

자료유형
학술대회자료
저자정보
홍순성 (한국지엠) 심성훈 (한국지엠) 이재욱 (한국지엠)
저널정보
한국자동차공학회 한국자동차공학회 춘계학술대회 2013 KSAE 부문 종합학술대회
발행연도
2013.5
수록면
22 - 28 (7page)

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초록· 키워드

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These days many automakers are trying to improve both fuel consumption efficiency and performance through engine downsizing. To achieve the objective, it is very efficient to apply the turbo charger system to provide a large amount of air to increase an engine performance. The intake system including a manifold and a port plays a role to make a tumble flow as well as provide an air mass flow to the combustion chamber. A high tumble flow is necessary in a turbocharged engine to prevent knock and SPI(Stochastic Pre-Ignition) due to the high pressure and temperature in a chamber. CMCV(Charge Motion Control Valve) is recently applied to many engines for a tumble flow, but it requires high cost, so the high tumble intake port without CMCV was developed in this study. TACM(Tumble Axis Control Method) was applied to develop a high tumble port, and as a result, the flame propagation speed got faster by average 9.1% compared to the base port. A combustion chamber with the flat squish was adopted to help a strong tumble motion and augment combustion. This paper shows how to develop the high performance PFI turbocharged engine by CFD analysis which was performed to optimize an intake port.

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Abstract
1. 서론
2. 흡기포트의 개발
3. 결론
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UCI(KEPA) : I410-ECN-0101-2014-550-002595346