Investigations of constant-flow valves for hydrostatic bearings

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...

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Bibliographic Details
Published in:Industrial lubrication and tribology 2013-09, Vol.65 (6), p.379-389
Main Authors: Kang, Yuan, Peng, De-Xing, Lee, Hsing-Han, Hu, Sheng-Yan, Chang, Yeon-Pun
Format: Article
Language:English
Subjects:
Bearings
Computer simulation
Design parameters
Engineering
Flow rate
Flow velocity
Industrial applications
Lubricants & lubrication
Lubrication
Mechanical engineering
Pneumatics
Pressure ratio
Product design
Recesses
Static characteristics
Studies
Tribology
Valves
Viscosity
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Summary: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.
ISSN:0036-8792
1758-5775
DOI:10.1108/ILT-05-2011-0034