カーボンニュートラルに貢献する内燃機関用シリンダブロックの技術動向

DOI

書誌事項

タイトル別名
  • Recent Trends of Cylinder Block in Internal Combustion Engine Contributing towards Carbon Neutrality
  • ―Improvement in Diesel Engine Performance by Improving Cylinder Bore Profile under Firing Conditions―
  • ―実働時のシリンダボア形状改善によるディーゼル機関の性能向上―

抄録

<p>A cylinder block involves bore deformation due to assembling stress of cylinder head and thermal stress. Friction analysis method of a piston skirt was established and the bore deformation effect on engine performance was clarified. Bore distortion analysis revealed the bore profile of constriction at bottom side and expansion toward upper side in the case of normal bore. This distortion is found to be the cause of exacerbation of the trade-off between skirt friction and piston slap. As a result of CAE prediction, ideal cylindrical bore under the highest thermal load condition significantly improved skirt friction, blow-by gas flow and LOC. Simulation results indicated that the change of design parameters for piston and rings lead to additional improvement of engine performance.</p>

収録刊行物

  • トライボロジスト

    トライボロジスト 69 (4), 276-283, 2024-04-15

    一般社団法人 日本トライボロジー学会

キーワード

詳細情報 詳細情報について

  • CRID
    1390018351898099584
  • DOI
    10.18914/tribologist.69.04_276
  • ISSN
    21899967
    09151168
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
  • 抄録ライセンスフラグ
    使用不可

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