Lubricating Condition of Piston Ring and Cylinder for Significantly Reducing Piston Friction Loss (Lubricating Condition of Plateau-Honing and Single-Honing Cylindersduring Break-in)

2009-01-0188

04/20/2009

Event
SAE World Congress & Exhibition
Authors Abstract
Content
The relationship between piston ring and out side of diameter (hereon referred to as OD) wear of ring has not been fully analyzed. In this study, the relationship between the ring OD wear and ring friction force during the break-in period, where ring OD wear occurs in a short period of time, was analyzed. After 20 hours of firing test, Friction mean effective Pressure (hereon referred to as FMEP) of nitrided ring having OD wear was 1.6kPa higher than that of Physical Vapor Deposition (hereon referred to as PVD) ring having little amount of wear (hereon referred to as “no OD wear”).
In addition, lubricating condition of piston system during break-in period was also analyzed in this study.
When plateau-honing cylinder was used, the FMEP showed an increasing trend over a 20-hour period of firing test. The cause of this increasing trend is the deterioration of lubricating condition of the piston skirt.
Meta TagsDetails
DOI
https://doi.org/10.4271/2009-01-0188
Pages
10
Citation
Wakabayashi, R., Mochiduki, K., and Yoshida, H., "Lubricating Condition of Piston Ring and Cylinder for Significantly Reducing Piston Friction Loss (Lubricating Condition of Plateau-Honing and Single-Honing Cylindersduring Break-in)," SAE Technical Paper 2009-01-0188, 2009, https://doi.org/10.4271/2009-01-0188.
Additional Details
Publisher
Published
Apr 20, 2009
Product Code
2009-01-0188
Content Type
Technical Paper
Language
English