Examination of the Axial Shape of the Automotive Valvetrain Cam for Engine Friction Reduction
作者： Y. Mabuchi , T. Yamashita , H. Izumi , T. Sekikawa , K. Nishimura
DOI: 10.1080/10402004.2016.1261312
关键词: Surface finish 、 Valvetrain 、 Finite element method 、 Contact area 、 Mechanical engineering 、 Materials science 、 Contact pressure 、 Friction reduction 、 Composite material 、 Tappet 、 Mechanics of Materials 、 Surfaces, Coatings and Films 、 Surfaces and Interfaces
摘要: ABSTRACTFriction tests were conducted with a direct-acting automotive valvetrain to evaluate the effect of axial cross-sectional shape cam on friction using various shapes from concave convex. The results revealed that levels could be understood as function contact ratio between and mating valve lifter regardless shape. A flat high was found have lowest level friction. Compared convex-shaped same height, tended show higher because lower lifter. finite element method (FEM) calculations also showed pressure cams in area factor caused greater
sci-hub.se 参考文章(9)
Carol Grossiord, Jean‐Michel Martin, Karine Varlot, Béatrice Vacher, Thierry Le Mogne, Yasuhisa Yamada, None, Tribochemical interactions between Zndtp, Modtc and calcium borate Tribology Letters. ,vol. 8, pp. 203- 212 ,(2000) , 10.1023/A:1019155822710
W. O. Winer, M. B. Peterson, Wear control handbook Published in <b>1980</b> in New York NY by American Society of Mechanical Engineers. ,(1980)
Yukio Shimada, Sadayuki Abou, Kenichi Okita, Minoru Chuubachi, Development of Friction Prediction Procedure and Friction Reduction Technologies for New Nissan HR and MR Engines SAE 2006 World Congress & Exhibition. ,(2006) , 10.4271/2006-01-0618
Yutaka Mabuchi, Takahiro Hamada, Hiroyuki Izumi, Yoshiteru Yasuda, Makoto Kano, The Development of Hydrogen-free DLC-coated Valve-lifter SAE World Congress & Exhibition. ,(2007) , 10.4271/2007-01-1752
Yoshiteru Yasuda, Makoto Kano, Yutaka Mabuchi, Sadayuki Abou, Research on Diamond-Like Carbon Coatings for Low-Friction Valve Lifters SAE 2003 World Congress & Exhibition. ,(2003) , 10.4271/2003-01-1101
Dumitru M. Beloiu, Modeling and Analysis of Valve Train, Part I - Conventional Systems SAE International journal of engines. ,vol. 3, pp. 850- 877 ,(2010) , 10.4271/2010-01-1198
Michele Calabretta, Diego Cacciatore, Phil Carden, Valvetrain Friction - Modeling, Analysis and Measurement of a High Performance Engine Valvetrain System SAE International journal of engines. ,vol. 3, pp. 72- 84 ,(2010) , 10.4271/2010-01-1492
J.M. Palacios, Films formed by antiwear additives and their incidence in wear and scuffing Wear. ,vol. 114, pp. 41- 49 ,(1987) , 10.1016/0043-1648(87)90014-7
Akira Katoh, Yoshiteru Yasuda, An Analysis of Friction Reduction Techniques for the Direct-Acting Valve Train System of a New-Generation Lightweight 3-Liter V6 Nissan Engine SAE transactions. ,vol. 103, pp. 1594- 1601 ,(1994) , 10.4271/940992