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九州産業大学工学部研究報告(Bulletin of the Faculty of Engineering Kyushu Sangyo University) >
第43号 >
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http://hdl.handle.net/11178/4674
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Title: | Low-SAPSディーゼルエンジン油の摩擦摩耗特性に関する研究(機械工学科) |
Other Titles: | Study on Friction and Wear Characteristics of Low-SAPS Diesel Engine Oils(DEPARTMENT OF MECHANICAL ENGINEERING) |
Authors: | 副島, 光洋 松下, 祐樹 Soejima, Mitsuhiro Matsushita, Yuki ソエジマ, ミツヒロ マツシタ, ユウキ 九州産業大学工学部機械工学科 / 九州産業大学工学部機械工学科 |
Keywords: | IC Engine Tribology Friction Wear Low-SAPS Lubricant Low Viscosity Oil Soot Contamination Valve Train Cam Follower Total Friction Loss |
Issue Date: | Dec-2006 |
Publisher: | 九州産業大学工学部 |
Abstract: | Low viscosity engine oils lower in sulfated ash, phosphorous and sulfur named as Low-SAPS oils have been evaluated regarding the influences on the friction and/or wear characteristics for the cam follower in valve train and the power loss of a working engine. The following study results were made obvious. (1) The power loss in the valve train with a roller follower supported with a needle bearing becomes larger than that in the one with a roller follower supported with a slide bearing. There, the ultra low sulfur oils (ULS) are lower in friction than DH-2 formulated oils, but the lubrication becomes severer under the high rotation speed. (2) Under the slide contact of a slipper follower, however, the ULS oil is higher in friction than the DH-2 oil, where the wear rate for the ULS oil is as high as that for the DH-2 oil when contaminated with soot. (3) The ULS oil made the piston ring scuffed under the high load and temperature conditions of engine operation. |
URI: | http://hdl.handle.net/11178/4674 |
Appears in Collections: | 第43号
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