A Impact Study on Combustion Characteristics of the Engine by Changing the Gasoline Properties

휘발유 물성변화가 엔진의 연소특성에 미치는 영향 연구

Noh, Kyeong-ha;Im, Sang-bin;Lee, Min-ho;Kim, Ki-ho;Ha, Jong-han

  • Received : 2015.08.10
  • Accepted : 2015.12.10
  • Published : 2015.12.31


This study examined combustion characteristics by selecting the fuel which have a different physical properties compared to gasoline in order to examine the effects of vehicle performance and environment depending on the physical properties. The experiment examined the combustion characteristic in the optimum ignition timing according to the physical properties change and the lean burn by performing control about ignition timing and air-fuel ratio for each fuel, and it was also evaluated the exhaust gas according to the experiment. We used a single-cylinder engine for the experiment, and tested for gasoline properties change by selecting a fake fuel that beyond the fuel quality standards in 석대법. As a result, in the case of the selected fuel showed a difference in Octane and distillation characteristics, vapor pressure and it was also found to unstable combustion, and leads to a large amount of harmful exhaust gas.


gasoline;ignition timing;lean burn;physical property;combustion characteristc


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