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Please use this identifier to cite or link to this item: http://hdl.handle.net/11178/4674

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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