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Surface Texturing of Cylinder Liners: A Review
Pawel Pawlus1, Waldemar Koszela1, Rafal Reizer2
1Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 8 Street, 35-959 Rzeszow, Poland.
Materials (Basel, Switzerland)
|December 11, 2022
Summary
Engine cylinder liner surface texturing significantly improves performance by enhancing lubrication. This leads to reduced friction, wear, fuel consumption, and emissions in internal combustion engines.
Area of Science:
- Tribology
- Mechanical Engineering
- Surface Engineering
Background:
- Cylinder liners are critical engine components affecting performance.
- Traditional plateau honing is being augmented with surface texturing (dimples, grooves).
- Surface texturing aims to optimize lubrication and reduce wear.
Purpose of the Study:
- To review and discuss the tribological impacts of textured cylinder liner surfaces.
- To analyze experimental and modeling results of surface texturing.
- To highlight the benefits of optimized surface topography for internal combustion engines.
Main Methods:
- Literature review of experimental research from test rigs and fired engines.
- Critical review of published modeling results.
- Analysis of various texturing patterns, including circular oil pockets and grooves.
Main Results:
- Surface texturing increases oil film thickness, especially near piston reversal points.
- Reduced friction force and wear are observed with textured surfaces.
- Textured liners lead to decreased fuel consumption, increased power/torque, and lower oil consumption, blow-by, and emissions compared to plateau-honed surfaces.
Conclusions:
- Surface texturing of cylinder liners is a key strategy for improving internal combustion engine efficiency and durability.
- Optimized texturing patterns, considering oil capacity, enhance lubrication and reduce detrimental effects.
- Future research should focus on further understanding and optimizing surface topography for advanced engine designs.
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