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Lean Combustion Characteristics in a S.I Engine with SCV by Operating Conditions
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 Title & Authors
Lean Combustion Characteristics in a S.I Engine with SCV by Operating Conditions
Choi, Su-Jin; Jeon, Chung-Hwan; Chang, Young-June;
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Lean combustion in a SI engine is one of the best solution for the improvement of fuel economy and reduction of pollutant emission. In order to access a lean combustion engine, stable combustion at lean AlF ratio is needed. In this paper, the effect of fuel injection timing on lean misfire limit has been investigated in an MPI engine. To investigate the interaction of injection timing and intake flow characteristics, three different swirl generating SCV(swirl control valve) configurations were considered, and investigated their effects on lean misfire limit and torque at full load operation. Also the effects of spark timing on lean combustion has been investigated. Lean combustion has been examined and the results are reported in this paper. SCV B has been developed to satisfy the requirements of sufficient swirl generation to improve lean combustion and stable performance. It is found that injection timing, spark timing and intake air motion govern the stable lean combustion.
Lean Combustion;Swirl Control Valve;Fuel Injection Timing;Spark Timing;
 Cited by
SCV를 장착한 2밸브 Sl 가시화기관의 연소특성에 관한 연구,정구섭;전충환;장영준;

대한기계학회논문집B, 2001. vol.25. 12, pp.1692-1701 crossref(new window)
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