Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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An Experimental Study on Exhaust Emission in a Gasoline Engine Using PDA and Spark Plug Location

점화플러그 삽입위치와 PDA 밸브를 이용한 가솔린엔진의 배출가스에 대한 실험적 연구

  • 김대열 (국민대 자동차공학전문대학원) ;
  • 한영출 (국민대 자동차공학부) ;
  • 김양술 (홍익대 기계정보공학과)
  • Published : 2005.08.01
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Abstract

The purpose of this study is to investigate variation of spark plug protrusion and PDA valve on the exhaust emission in a gasoline engine. Swirl is one of the important parameters that affects the characteristics of combustion. PDA valve has been developed to satisfy requirements of sufficient swirl generation for improving the combustion and reducing of emission level. Also, especially, the variation of spark plug protrusion have an important effect to the early flame propagative process. This is largely due to the high flame speed by short of flame propagation distance. So, this is forced that injection timing, spark timing and intake air motion govern the stable combustion. As a result, using two combustion chamber, without charge of engine specification and the variable spark plug location and PDA valve could be reduced exhaust gas at a part load engine conditions(1500rpm imep 3.9bar, 2000rpm imep 3.2bar, 2400rpm imep 3.9bar).

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References

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