ディーゼル燃料噴射装置のボディーシート部摩耗機構に関する研究

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タイトル別名
  • A Study on Mechanism of Wear of Nozzle Body Seat of Diesel Fuel Injector
  • ディーゼル ネンリョウ フンシャ ソウチ ノ ボディーシートブ マモウ キコウ ニ カンスル ケンキュウ

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Mechanism of wear and deformation of nozzle body seat is studied with wear testing machine which was developed　based on a commercially used injection system. Observations of the surface and cross section of worn nozzle body seat　using SEM, and by element analysis of the worn surface with EPMA indicate that the wear of the nozzle body seat is　probably due to formation and exfoliation of oxide scale on the nozzle body seat. The lubricant additives promote the　exfoliation of oxide scale by their absorption and elimination with the oxide scale on the surface of the nozzle body seat.

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