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9 papers found.
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Noise Reduction of an Axial Piston Pump by Valve Plate Optimization

? Gan Ye, born in 1989, is currently a post? doctorial at Ocean College, Zhejiang University, China. His main research interest is noise control of axial piston machines Jun?Hui Zhang, born in 1983, is ... Ivantysynova . Heat transfer and thermal elastic deformation analysis on the piston/cylinder interface of axial piston machines . Journal of Tribology , 2012 , 134 ( 4 ): 1 - 15 . [20] Bing Xu , Jun?Hui Zhang

Surficial Failure of Expansive Soil Cutting Slope and Its Flexible Support Treatment Technology

Maintenance Technology, Changsha University of Science and Technology, Changsha 410114, China Correspondence should be addressed to Jun-hui Zhang; moc.361@ueshjz Received 31 July 2017; Revised 17 November

Surficial Failure of Expansive Soil Cutting Slope and Its Flexible Support Treatment Technology

Maintenance Technology, Changsha University of Science and Technology, Changsha 410114, China Correspondence should be addressed to Jun-hui Zhang; moc.361@ueshjz Received 31 July 2017; Revised 17 November

Surficial Failure of Expansive Soil Cutting Slope and Its Flexible Support Treatment Technology

Maintenance Technology, Changsha University of Science and Technology, Changsha 410114, China Correspondence should be addressed to Jun-hui Zhang; moc.361@ueshjz Received 31 July 2017; Revised 17 November

Effect of case drain pressure on slipper/swashplate pair within axial piston pump

This paper pertains to case drain pressure limitation for axial piston swashplate pumps used in open-loop circuits. The critical case drain pressure for pumps of this type is considered from the oil film perspective of the slipper/swashplate pair: (1) height of the lubricating oil film, (2) supporting stiffness, and (3) location of the centroid of the equivalent hydrodynamic...

Effects of index angle on flow ripple of a tandem axial piston pump

A high noise level is one of the prominent shortcomings of an axial piston pump which is widely used in industrial and mobile applications. In this paper, a simulation model of an axial piston pump is developed based on a single piston chamber model, for capturing the dynamic characteristics of the discharge flow rate. The compressibility of fluid and main leakages across...

A new design method for the transition region of the valve plate for an axial piston pump

The optimization of the valve plate transition region is an important way of reducing the noise emission for an axial piston pump. However, the optimized methods through simulation or experiment are actually trial and error, and they cannot indicate the precise structural parameters of the valve plate transition region. In this study, a new design method for the transition region...

Structure-Guided Modification of Rhizomucor miehei Lipase for Production of Structured Lipids

To improve the performance of yeast surface-displayed Rhizomucor miehei lipase (RML) in the production of human milk fat substitute (HMFS), we mutated amino acids in the lipase substrate-binding pocket based on protein hydrophobicity, to improve esterification activity. Five mutants: Asn87Ile, Asn87Ile/Asp91Val, His108Leu/Lys109Ile, Asp256Ile/His257Leu, and His108Leu/Lys109Ile...