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Investigations of constant-flow valves for hydrostatic bearings

Yuan Kang (Department of Mechanical Engineering, Chung Yuan Christian University, Chung-Li, Taiwan, Republic of China)
De-Xing Peng (Department of Vehicle Engineering, Army Academy, Chung-Li, Taiwan, Republic of China)
Hsing-Han Lee (Department of Mechanical Engineering, Chung Yuan Christian University, Chung-Li, Taiwan, Republic of China)
Sheng-Yan Hu (Department of Mechanical Engineering, Chung Yuan Christian University, Chung-Li, Taiwan, Republic of China)
Yeon-Pun Chang (Department of Mechanical Engineering, Chung Yuan Christian University, Chung-Li, Taiwan, Republic of China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 16 September 2013

147

Abstract

Purpose

Constant flow valves have been presented in industrial applications or academic studies, which compensate pressures of bearing recesses as load fluctuates. The flow rate of constant-flow valves (CFVs) can be constant in spite of the pressure changes in recesses. However, specific condition of design parameters must be satisfied. The paper aims to discuss these issues.

Design/methodology/approach

This paper utilizes analytical method to study the static characteristics of CFVs, three types belong to traditional design of CFV are reviewed afresh. Moreover, an innovative design for constant flow is presented and studied.

Findings

The review and study results reveal that appropriate relationships among design parameters for these types of CFVs.

Originality/value

The numerical simulation is used to investigate the influence of design parameters on the change of flow rate when pressure ratio of recess is changed.

Keywords

Acknowledgements

Thanks for that this study was supported by National Science Council via the fund NSC92-2212-E-033-016.

Citation

Kang, Y., Peng, D.-X., Lee, H.-H., Hu, S.-Y. and Chang, Y.-P. (2013), "Investigations of constant-flow valves for hydrostatic bearings", Industrial Lubrication and Tribology, Vol. 65 No. 6, pp. 379-389. https://doi.org/10.1108/ILT-05-2011-0034

Publisher

:

Emerald Group Publishing Limited

Copyright © 2013, Emerald Group Publishing Limited

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