A review of high-speed electro-hydrostatic actuator pumps in aerospace applications: challenges and solutions

Q Chao, J Zhang, B Xu… - Journal of …, 2019 - asmedigitalcollection.asme.org
The continued development of electro-hydrostatic actuators (EHAs) in aerospace
applications has put forward an increasing demand upon EHA pumps for their high power …

Challenges and solutions for high-speed aviation piston pumps: A review

C Zhang, C Zhu, B Meng, S Li - Aerospace, 2021 - mdpi.com
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 …

[HTML][HTML] A complete analysis of axial piston pump leakage and output flow ripples

JM Bergada, S Kumar, DL Davies, J Watton - Applied mathematical …, 2012 - Elsevier
The paper is focused on understanding the flow losses and the resulting flow/pressure
dynamics in a piston pump. Initially, equations to evaluate leakages in all piston pump gaps …

[HTML][HTML] Capped piston: A promising design to reduce compressibility effects, pressure ripple and cavitation for high-speed and high-pressure axial piston pumps

Q Chao, Z Xu, J Tao, C Liu - Alexandria Engineering Journal, 2023 - Elsevier
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 …

The theoretical flow ripple of an external gear pump

ND Manring, SB Kasaragadda - J. Dyn. Sys., Meas …, 2003 - asmedigitalcollection.asme.org
In this paper, the theoretical flow ripple of an external gear pump is studied for pumps of
similar size using different numbers of teeth on the driving and driven gears. In this work, the …

Design, simulation and experiment for a piezoelectric energy harvester based on fluid pressure pulsation in water hydraulic system

W Shi, C Yang, H Zhao, C Chen, Y Gao, X Luo - Ocean Engineering, 2023 - Elsevier
Water hydraulic pump is an essential component of water hydraulic system, and periodic
pressure pulsation is generated during its operation. A hydraulic piezoelectric energy …

Vertical axis wind turbine aerodynamics: summary and review of momentum models

AA Mohammed, HM Ouakad… - Journal of …, 2019 - asmedigitalcollection.asme.org
Momentum models or streamtube models represent one of the fundamental approaches in
modeling the aerodynamics of straight bladed vertical axis wind turbine (SB-VAWT) of …

Research on the pressure and flow characteristics of seawater axial piston pump considering cavitation for reverse osmosis desalination system

F Yin, X Kong, H Ji, S Nie, W Lu - Desalination, 2022 - Elsevier
Seawater axial piston pump (SWAPP) has been widely used as the power component in the
seawater reverse osmosis (SWRO) desalination systems, whose flow quality could result in …

Influence of fluid compressibility and movements of the swash plate axis of rotation on the volumetric efficiency of axial piston pumps

P Załuski - Energies, 2022 - mdpi.com
This paper describes the design of a swash plate axial piston pump and the theoretical
models describing the bulk modulus of aerated and non-aerated fluids. The dead space …

[HTML][HTML] Theoretical study of flow ripple for an aviation axial-piston pump with damping holes in the valve plate

C Guan, Z Jiao, S He - Chinese journal of aeronautics, 2014 - Elsevier
Based on the structure of a certain type of aviation axial-piston pump's valve plate which
adopts a pre-pressurization fluid path (consisting a damping hole, a buffer chamber, and an …