Experimental Analysis of Cylinder-bore Corrosive Wear by Utilizing a Radioisotope Tracer (Second Report)

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  • RIトレーサー法を用いたシリンダボア腐食摩耗解析（第2報）
  • RIトレーサー法を用いたシリンダボア腐食摩耗解析(第2報)硫黄含有燃料による硫酸生成の摩耗影響
  • RI トレーサーホウ オ モチイタ シリンダボア フショク マモウ カイセキ(ダイ2ホウ)イオウ ガンユウ ネンリョウ ニ ヨル リュウサン セイセイ ノ マモウ エイキョウ
  • -Influence of sulfuric acid generated from sulfur-containing fuels on wear-
  • －硫黄含有燃料による硫酸生成の摩耗影響－

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Abstract

In the previous study, it had been found that bore wear increases with sulfur-containing fuels, which was assumed to be due to the corrosive wear caused by sulfuric acid generation. A hypothesis was also proposed that bore wear increases as increasing volume, acidity and reaction speed of the acid. In this study, the hypothesis was verified by investigating the influence of the bore-wall temperature on bore wear, and a wear measurement with in-cylinder injection of an acidic solution containing sulfuric acid. Furthermore, it was confirmed that those tendencies of corrosive wear does not depend on fuel injection types of engine.

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