Results 21 to 30 of about 2,895 (256)
The Journal of Engineering, 2018 Based on the theories of heat transfer and the method of computational fluid dynamics, a liquid–solid mathematical model of heat transfer of an axial piston hydraulic motor pump is constructed in this study.
Dianrong Gao +5 more
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Piston rotation and frictional forces between piston and cylinder of piston and motor
Proceedings of the JFPS International Symposium on Fluid Power, 1993 The influence of the piston rotation on the frictional forces between the piston and the cylinder has been studied experimentally for a swash plate type piston pump and motor. In order to measure the rotational speeds of the piston, the capacitance detecting method have been employed for the piston with the slits.
Tanaka, Kazuhiko +2 more
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System study of pneumatic exoskeleton rehabilitation manipulator
The Journal of Engineering, 2018 In this study, biological characteristic of manpower is analysed and then the structural of exoskeleton rehabilitation manipulator is designed base on the thought of modular. First, the overall assembly drawing is drawn by SolidWorks.
Xudong Ma, Ruibo Yuan, Sizhong Fang
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Rekayasa, 2023 The need for electrical energy is very high, but fossil power plants are running low. Consequently, innovations in alternative energy sources are increasing, including sea waves.
Fideryan Axel Pratama +2 more
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The Journal of Engineering, 2018 Comparative investigation on friction and wear properties of SiC, Si(3)N(4), Al(2)O(3), and ZrO(2) lubricated with seawater was carried out on a ring-on-ring contacted tribological test apparatus, and their worn surfaces were observed by an ultra-depth ...
Zhenhua Zhang +4 more
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Programming piston displacements for constant flow rate piston pumps with trigonometric transition functions [PDF]
Mechanical Sciences, 2021 An analytical method for programming piston displacements for constant flow rate piston pumps is presented. A total of two trigonometric transition functions are introduced to express the piston velocities during the transition processes, which can ...
Z. Tian, Z. Tian, X. Lin, X. Lin
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Influence of Piston Number on Churning Losses in Axial Piston Pumps
Chinese Journal of Mechanical Engineering, 2022 Raising the rotational speed of an axial piston pump is useful for improving its power density; however, the churning losses of the piston increase significantly with increasing speed, and this reduces the performance and efficiency of the axial piston ...
Ying Li +4 more
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An Empirical Model for the Churning Losses Prediction of Fluid Flow Analysis in Axial Piston Pumps
Micromachines, 2021 The manufacturing development of axial piston pumps usually takes the trend of high speed and miniaturization, and increases power density. Axial piston pumps are usually characterized as high speed to improve the power density; thus, high-speed churning
Ying Li, Xing Chen, Hao Luo, Jin Zhang
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International Journal of Automotive Science and Technology, 2023 In this study, performance and combustion characteristics of biogas and biogas+hydrogen mixtures were experimentally analysed and compared with baseline diesel fuel in a common-rail diesel engine with and without thermal barrier coated piston. Tests were
Ali Şanlı +2 more
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Radiation Loading on Pistons and Arrays of Pistons [PDF]
The Journal of the Acoustical Society of America, 1956 Expressions are presented whereby the radiation load on a piston or an array of pistons may be determined from physical principles and factors illustrated by various types of well-known radiating surfaces, wave guides, and conical horns. On the assumption that the radiation loading on a piston may be defined sufficiently by its low- and high-frequency ...
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