Optimization of radial flexible mechanism in scroll compressor based on oil film lubrication analysis
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 14 March 2022
Issue publication date: 30 May 2022
Abstract
Purpose
The leakage problem caused by machining error, assembly error, wearing and thermal deformation has been the main factor hindering the development of scroll compressor. This paper aims to investigate the lubrication characteristics of radial clearance and further optimize the radial clearance, which can reduce the leakage in the tangential direction of the working chamber.
Design/methodology/approach
This paper establishes a model of radial clearance oil film lubrication in scroll compressor. And, the method to solve the Reynolds and energy equations is presented, as well as the dimensionless and discretization by finite element difference method. To verify the established model, performance experiment of scroll compressor for electric vehicle air conditioning system is also carried out.
Findings
Based on the presented model, the temperature field and distribution of the oil film in the radial clearance are analyzed. And the influence of the structural parameter on the radial clearance is further discussed. The optimum radial clearance could be achieved at β = 40°–42°, where the orbiting scroll is in the state of rotary balance. And, the simulation results coincide well with the experimental results.
Originality/value
This work provides an effective model to evaluate the lubrication characteristics of radial clearance in scroll compressor, which can provide guidance for the design of scroll compressor.
Keywords
Acknowledgements
This work is jointly supported by the State Key Laboratory of Compressor Technology (Anhui Laboratory of Compressor Technology, SKL-YSJ201914), project funded by China Postdoctoral Science Foundation (2020M681983) and the Fundamental Research Funds for the Central Universities (JZ2021HGTB0093, JZ2020HGQA0211).
Declaration of interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. The authors declare the following financial interests/personal relationships which may be considered as potential competing interests.
Citation
Sun, D., Tang, J., Zhang, X., Yuan, X., Qian, Y., Ye, F., Ye, B. and Jiang, B. (2022), "Optimization of radial flexible mechanism in scroll compressor based on oil film lubrication analysis", Industrial Lubrication and Tribology, Vol. 74 No. 5, pp. 514-521. https://doi.org/10.1108/ILT-10-2021-0419
Publisher
:Emerald Publishing Limited
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