Research on the Pressure Ratio Characteristics of a Swash Plate-Rotating Hydraulic Transformer

Chongbo Jing, Junjie Zhou, Shihua Yuan and Siyuan Zhao
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Chongbo Jing: School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
Junjie Zhou: School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
Shihua Yuan: School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
Siyuan Zhao: School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China

Energies, 2018, vol. 11, issue 6, 1-11

Abstract: This paper presents a theoretical model and its experimental validation for the pressure ratio of a swash plate-rotating hydraulic transformer. The structure and principle of the new type of transformer are described. The swash plate-rotating type can reduce the throttling loss caused by the valve plate in traditional hydraulic transformers. The theoretical model of the pressure ratio was derived based on the displacements functioning as the pump and motor in the transformer, accounting for the friction losses. A specific experimental setup including the prototype was established to validate the principle and pressure ratio of the machine. The results show that the transformer has a wider pressure range. The increase in pressure at port A and the rotating speed of the cylinder can reduce the pressure ratio slightly due to the torque loss. The present work indicates the useful potential of the swash plate-rotating hydraulic transformer.

Keywords: hydraulic transformer; pressure ratio; swash plate; experimental; energy saving (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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