View in EDS

Study on the effects of the textured surface to improve the performance of cylinder block/valve plate interfaces.

Saved in:
Bibliographic Details
Title: Study on the effects of the textured surface to improve the performance of cylinder block/valve plate interfaces.
Authors: Lv, Qibing, Wang, Dongyun, E, Shiju, Chen, Haojie, Hu, Bingyan
Source: AIP Advances; Apr2019, Vol. 9 Issue 4, pN.PAG-N.PAG, 15p
Subject Terms: SURFACE texture, LUBRICATION & lubricants, VALVES, PLATING, MATHEMATICAL models, CAVITATION
Abstract: This paper discovers how the surface texture of micro-dimples impacts the tribological performance of the interface between cylinder block and valve plate. For this, a mathematical model which considers the cavitation effect for calculating oil film pressure and oil leakage is established. The radius of the micro dimples is considered for studying the influence of the pressure field and the leakage flow. Then a simulation model is built up according to the mathematical model. Meanwhile, a particular test rig was designed and established to verify the theoretical results. Both simulation and experimental results show that a good designed surface texture of micro-dimples could improve the lubrication performance a lot and the structure parameters could be optimized. The leakage flow of the port plate pair will be greatly decreased by micro dimples and it is positive correlated with the radius of the micro dimples. [ABSTRACT FROM AUTHOR]
Copyright of AIP Advances is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Complementary Index
Description
Abstract:This paper discovers how the surface texture of micro-dimples impacts the tribological performance of the interface between cylinder block and valve plate. For this, a mathematical model which considers the cavitation effect for calculating oil film pressure and oil leakage is established. The radius of the micro dimples is considered for studying the influence of the pressure field and the leakage flow. Then a simulation model is built up according to the mathematical model. Meanwhile, a particular test rig was designed and established to verify the theoretical results. Both simulation and experimental results show that a good designed surface texture of micro-dimples could improve the lubrication performance a lot and the structure parameters could be optimized. The leakage flow of the port plate pair will be greatly decreased by micro dimples and it is positive correlated with the radius of the micro dimples. [ABSTRACT FROM AUTHOR]
ISSN:21583226
DOI:10.1063/1.5088851