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Abstract
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Jihai Jiang, Wei-Peng Yan and Ge-Qiang Li
The purpose of this paper is to analyze the micro-motion of the cylinder block.
Abstract
Purpose
The purpose of this paper is to analyze the micro-motion of the cylinder block.
Design/methodology/approach
Based on the elasto-hydrodynamic lubrication, a numerical model for the cylinder block/valve plate interface is proposed, with consideration of the elastic deformations, the pressure-viscosity effect and asperity contacts. The influence-function method is applied to calculating the actual deformations of the cylinder block and the valve plate. The asperity contact model simplified from Greenwood assumption is introduced into the numerical model. Furthermore, the relationship between the micro-motion and the operating condition, the sealing belt width is discussed, respectively.
Findings
The results show an increase in the discharge pressure causes the tilt state and the vibrating motion getting worse, which can be eased by improving the rotational speed, the sealing belt width and the ratio of external and internal sealing belt width.
Originality/value
The proposed research can provide a theoretical reference for the optimizing design of cylinder block/valve plate pair.
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