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Optimization of a spool valve to reduce pressure ripple in a collaborative rectification pump
2015 International Conference on Fluid Power and Mechatronics (FPM), 2015This paper presents structure optimization of a spool valve to reduce pressure ripple in a novel linear collaborative rectification pump (CRP). The CRP is with two units, which consists of a cylinder to compress fluid and a spool valve for rectification.
Zongxia Jiao
exaly +3 more sources
Influence of leakage flow variation on delivery pressure ripple in a vane pump
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2014This article describes the theoretical analysis and experimental verification of the influence of variations of leakage flow as well as ideal flow on delivery pressure ripple in a balanced vane pump. The analytical model for simulating the delivery pressure ripple of the pump is simplified.
Y. Inaguma, Keiichi Nakamura
exaly +3 more sources
A Model for the Estimation of Pressure Ripple in Tandem Gear Pumps
Volume 10: ASME 2015 Power Transmission and Gearing Conference; 23rd Reliability, Stress Analysis, and Failure Prevention Conference, 2015The present paper addresses the development of a lumped parameters model used to analyze the dynamic behavior of a so-called tandem gear pump. The pump is composed of two coaxial stages, both with external gears: a high pressure stage with spur gears and a low pressure one with helical gears.
M. Battarra, E. Mucchi, G. Dalpiaz
semanticscholar +3 more sources
Reduction of axial piston pump pressure ripple
Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 2000The reduction in source flow ripple in hydraulic systems is the most effective method of reducing pump-generated pressure ripple and system noise. This paper describes reductions in axial-piston pump delivery flow ripple achieved using a novel timing mechanism which is inherently speed, flow and pressure sensing.
K. Harrison, K. Edge
semanticscholar +2 more sources
Positive Displacement Machines, 2019
The development of a zero-dimensional model for analysing pressure phenomena in multiple stage external gear pumps is addressed in the present work. The tandem pump is composed of two coaxial stages: the high pressure one, made by spur gears, and the low
Emiliano Mucchi +2 more
exaly +2 more sources
The development of a zero-dimensional model for analysing pressure phenomena in multiple stage external gear pumps is addressed in the present work. The tandem pump is composed of two coaxial stages: the high pressure one, made by spur gears, and the low
Emiliano Mucchi +2 more
exaly +2 more sources
The Reduction of Gear Pump Pressure Ripple
Proceedings of the Institution of Mechanical Engineers, Part B: Management and engineering manufacture, 1988Pressure fluctuations in a hydraulic system may be substantially reduced by cancelling the flow ripple produced by the pump. This paper describes a secondary flow ripple generating mechanism which introduces an equal and opposite flow fluctuation to that generated by the pump.
K. Edge, B. R. Lipscombe
semanticscholar +2 more sources
Power performance improvements for high pressure ripple energy harvesting
Smart Materials and Structures, 2013A hydraulic pressure energy harvester (HPEH) device, which utilizes a housing in order to isolate a piezoelectric stack from the hydraulic fluid via a mechanical interface, generates power by converting the dynamic pressure within the system into electricity.
E. Skow, K. Cunefare, A. Erturk
semanticscholar +2 more sources
The Measurement of the Fluid Borne Pressure Ripple Characteristics of Hydraulic Components
Proceedings of the Institution of Mechanical Engineers, Part B: Management and engineering manufacture, 1983Pressure pulsations generated by pumps and motors can often be a major source of noise in hydraulic systems. In this paper two test methods for the determination of the pressure ripple characteristics of pumps are described. The first method enables a pump to be characterized by a frequency spectrum or a single figure or merit, enabling simple ...
K. Edge, T. Wing
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Gerotor Oil Pump Performance and Flow/Pressure Ripple Study
SAE Technical Paper Series, 2006<div class="htmlview paragraph">A three-dimensional CFD methodology has been developed and applied to predict the pump performance, to understand pump flow dynamics, and to investigate pump flow/pressure ripple for gerotor pumps equipped in automatic transmission systems. The methodology is based on the commercial code CFD-ACE+ and the analytical
Dengfu Zhang, C. Perng, Mireille Laverty
semanticscholar +2 more sources