Analysis on Piston Skirt Friction


Understanding of piston skirt friction is important for reducing piston friction in internal combustion engines. For this purpose, the oil film distribution on the piston skirt is visualized and observed in a gasoline engine with a transparent sapphire cylinder. In this study, friction calculations are carried out for the striated oil film area of skirt. It is supposed that the area has a Couette flow by analyzing oil film images. It is found that the friction of the striated oil film area is around 3.5 to 9.9% of the friction of whole skirt.油膜の可視化からスカート摺動部両端のクリアランスが大きい部分の筋状の油膜を観察した.この領域は画像解析から潤滑油で満たされており,フリクションの発生している領域と判断できた.本研究ではこの領域でのフリクションの予測計算を行った.


  • English
  • Japanese

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01666802
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: Jan 31 2018 3:19PM