This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Development of Hydrogen-free DLC-coated Valve-lifter
Technical Paper
2007-01-1752
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Due to its lower friction property, a hydrogen-free diamond-like carbon coating (DLC) obtained by an ion-plating physical vapor deposition (PVD) process as an amorphous carbon film (a-C) was applied to an engine valve lifter to reduce mechanical losses. The effect of the a-C coating on reducing friction was evaluated with an engine motoring tester using actual engine parts. To meet the specifications of the valve lifter, a study was made of the typical topography of the a-C coating surface profile and the effect of the film thickness against abrasive wear.
Recommended Content
Technical Paper | Wear Analysis of DLC Coating in Oil Containing Mo-DTC |
Journal Article | Friction Behavior of Different DLC Coatings by using Various Kinds of Oil |
Technical Paper | Durability Improvement of Engine Valves and Interfacing Systems |
Authors
Citation
Mabuchi, Y., Hamada, T., Izumi, H., Yasuda, Y. et al., "The Development of Hydrogen-free DLC-coated Valve-lifter," SAE Technical Paper 2007-01-1752, 2007, https://doi.org/10.4271/2007-01-1752.Also In
References
- Schamel A.R. Grischke M. Bethke R. “Amorphous Carbon Coatings for Low Friction and Wear in Bucket Tappet Valvetrains” SAE Paper 970004 1997
- Williamson B.P. Bell J.C. “The Effects of Engine Oil Rheology on the Oil Film Thickness and Wear Between a Cam and Rocker Follower” SAE Paper 962031 1996
- Katoh A. Yasuda Y. “An Analysis of Friction Technique for the Direct-Acting Valve Train System of a New-Generation Lightweight 3-Liter V6 Nissan Engine” SAE Paper 940992 1994
- Masuda M. Ujino M. Shimoda K. Nishida K. Marumoto I. Moriyama Y. “Development of Titanium Nitride Coated Shim for a Direct Acting OHC Engine” SAE Paper 970002 1997
- Yasuda Y. Kano M. Mabuchi Y. Abou S. “Research on Diamond-Like Carbon Coatings for Low-Friction Valve Lifters” SAE Paper 2003-01-1101 2003
- Kano M. Yasuda Y. Mabuchi Y. Ye J. Konishi S. “Ultra-low Friction Properties of DLC Lubricated with Ester-Containing Oil --Part 1: Pin-on-disk and SRV Friction Tests--” Proc. of 30 th Leeds-Lyon Symposium on Tribology 2003
- Bowden F.D. Tabor D. The Friction and Lubrication of Solids Maruzen, Tokyo 1961 209