日本機械学会論文集 C編
Online ISSN : 1884-8354
Print ISSN : 0387-5024
ピストンリングの摩擦特性に関する研究 : ピストンリング諸元の影響
和栗 雄太郎北原 辰巳浜武 俊朗副島 光洋大野 修実
著者情報
ジャーナル フリー

1996 年 62 巻 599 号 p. 2811-2817

詳細
抄録

In internal combustion engines, one of the most important issues is to clarify the friction characteristics between the piston ring and the cylinder liner because of the demand for improved fuel economy through the reduction of friction loss. In the present study, the floating liner method is used to measure the piston assembly friction force in a diesel engine. The piston assembly friction demonstrates that fluid film lubrication is dominant at midstroke, but a friction peak due to boundary lubrication is observed at dead center. A decrease in either the number or the width of piston rings is effective in reducing total friction loss, but this increases the maximum friction peak at the beginning of the power stroke. However, the friction peak can be reduced by using a ceramic-coated piston ring. The influence of the compression ring tension on friction loss is dependent on the oil ring tension.

著者関連情報
© 社団法人日本機械学会
前の記事 次の記事
feedback
Top