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An Empirical Model for the Churning Losses Prediction of Fluid Flow Analysis in Axial Piston Pumps [PDF]
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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Alexandria Engineering Journal, 2023 Raising rotational speed and operating pressure is an effective way to increase the power density of axial piston pumps. However, the axial piston pump with standard hollow pistons suffers from problems of volumetric losses, pressure ripple, and ...
Qun Chao +3 more
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Energies, 2018 The loss of kinetic energy of moving parts due to viscous friction of lubricant causes the reduction of piston pump efficiency. The viscosity of lubricant film is mainly affected by the thermal effect. In order to improve energy efficiency of piston pump,
Yueheng Song, Jiming Ma, Shengkui Zeng
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Applied Sciences, 2023 Axial piston pumps provide a number of benefits, including strong pressure resistance, high efficiency, high transmission power, a broad speed range, and a long lifespan.
Yuan Feng +5 more
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Mathematics, 2022 Cavitation will increase the leakage and discharge pressure fluctuation of axial piston pumps. In particular, specific cavitation damage may aggravate the pressure impact and performance degradation. The influence of the specific cavitation damage on the
Shiqi Xia, Yimin Xia, Jiawei Xiang
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Applied Sciences, 2021 The friction in the swash plate type axial piston pumps is mainly influenced by the fluid film in the friction interface. The piston–cylinder interface is one of the key friction interfaces in the pumps. The film geometry is determined by the gap between
Junjie Zhou, Tianrui Li, Dongyun Wang
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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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Challenges and Solutions for High-Speed Aviation Piston Pumps: A Review
Aerospace, 2021 As a core power component, aviation piston pumps are widely used in aircraft hydraulic systems. The piston pump’s power-to-weight ratio is extremely crucial in the aviation industry, and the “ceiling effect” of the PV value (product of compressive stress
Chenchen Zhang +3 more
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CAAI Transactions on Intelligence Technology, 2023 The cavitation in axial piston pumps threatens the reliability and safety of the overall hydraulic system. Vibration signal can reflect the cavitation conditions in axial piston pumps and it has been combined with machine learning to detect the pump ...
Qun Chao +4 more
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Condition monitoring of axial piston pumps based on machine learning-driven real-time CFD simulation
Engineering Applications of Computational Fluid MechanicsCondition monitoring of axial piston pumps is essential for the stable and safe operation of the entire hydraulic system in various electro-hydraulic equipment.
Wentao Wang +3 more
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