Research on the Effect of Fuel Properties on Knocking Performance of Boosted Engines


The characteristics of knocking performance under turbocharged conditions were studied. To clarify the mechanism from the viewpoint of auto ignition processes of fuel/air mixtures, fuels with independently different Research Octane Number (RON), Motor Octane Number (MON), and ethanol content were prepared. The knocking performance of these fuels, under both natural aspirated and turbocharged condition, were experimentally evaluated in a single cylinder research engine. Results show that contributions of RON and MON to knocking performance changes with engine operating conditions. For further analysis, elementary reaction calculations with reaction schemes which can simulate given RON and MON properties were performed. The mechanism was explained with characteristics of low temperature oxidation with each fuel.火花点火機関の過給条件におけるノッキング特性について,オクタン価特性やエタノール含有率が異なる燃料群を用いて,単気筒エンジンにて実験的に評価した.RON とMON の寄与度が運転条件によって変化する実験結果が得られ,素反応計算による解析から,寄与度変化が低温酸化反応の活性度合いに影響されていることが示唆された.


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  • Accession Number: 01666797
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: Jan 31 2018 3:19PM