Effects of flow inertia modelling and valve-plate geometry on swash-plate axial-piston pump performance

2011 ◽  
Vol 226 (4) ◽  
pp. 451-465 ◽  
Author(s):  
N P Mandal ◽  
R Saha ◽  
D Sanyal
Keyword(s):  
Valve Plate ◽  
Piston Pump ◽  
Axial Piston Pump ◽  
Pump Performance ◽  
Swash Plate ◽  
Flow Inertia ◽  
Axial Piston ◽  
Plate Geometry

SimulationX<sup>Ⓡ</sup> –based Modeling for Valve-Plate Notch Design of Variable Swash-Plate Axial Piston Pump

2018 ◽  
Vol 17 (4) ◽  
pp. 104-112 ◽  
Author(s):  
San Seong Lee ◽  
◽  
Won Jee Chung ◽  
Dong Jae Lim ◽  
Tae Hyung Cha ◽  
...  
Keyword(s):  
Valve Plate ◽  
Piston Pump ◽  
Axial Piston Pump ◽  
Swash Plate ◽  
Axial Piston

Research on lubrication mechanism with fluid–solid coupling of port plate pair in swash plate axial piston pump

2019 ◽  
Vol 234 (4) ◽  
pp. 515-527 ◽  
Author(s):  
Zhaoqiang Wang ◽  
Yanfei Xu ◽  
Shan Hu ◽  
Hong Ji ◽  
Jian Yang
Keyword(s):  
High Pressure ◽  
Structural Parameters ◽  
Valve Plate ◽  
Piston Pump ◽  
Fluid Viscosity ◽  
Pressure Side ◽  
Axial Piston Pump ◽  
Oil Film ◽  
Swash Plate ◽  
Axial Piston

When a swash plate axial piston pump operates under high-pressure conditions, the valve plate will undergo warping deformation. Based on the theory of elastic fluid dynamic lubrication, this work establishes a fluid–solid coupling model of a swash plate axial piston pump and solves the governing equations of the lubrication with respect to the port plate pair. Cylinder speed, cylinder angle, fluid viscosity, oil film thickness, seal belt width, and structural parameters are also considered to observe their influence on the valve plate warpage deformation with the swash plate axial piston pump. The results show that the deformation cloud of the valve plate on the axial piston pump is symmetrical, with the axis line of the waist groove as the axis. The deformation of the outer seal zone on the high-pressure side of the valve plate is the largest, and the deformation of the outer seal zone on the low-pressure side of the valve plate is the smallest. Under the same conditions, the material and structure of the valve plate affect the thickness and shape of the oil film. This study provides a theoretical basis for the high pressure of the swash plate axial piston pump.

The Analysis of Cavitation Problems in the Axial Piston Pump

2010 ◽  
Vol 132 (7) ◽  
Author(s):  
Shu Wang
Keyword(s):  
Vapor Pressure ◽  
Control Volume ◽  
Low Pressure ◽  
Valve Plate ◽  
Piston Pump ◽  
Axial Piston Pump ◽  
Axial Piston Pumps ◽  
Design Guide ◽  
Axial Piston ◽  
Plate Geometry

This paper discusses and analyzes the control volume of a piston bore constrained by the valve plate in axial piston pumps. The vacuum within the piston bore caused by the rise volume needs to be compensated by the flow; otherwise, the low pressure may cause the cavitations and aerations. In the research, the valve plate geometry can be optimized by some analytical limitations to prevent the piston pressure below the vapor pressure. The limitations provide the design guide of the timings and overlap areas between valve plate ports and barrel kidneys to consider the cavitations and aerations.

Impact of Valve Plate Design on Noise, Volumetric Efficiency and Control Effort in an Axial Piston Pump

2006 ◽  
Author(s):  
Ganesh Kumar Seeniraj ◽  
Monika Ivantysynova
Keyword(s):  
Volumetric Efficiency ◽  
Valve Plate ◽  
Piston Pump ◽  
Design Parameters ◽  
Axial Piston Pump ◽  
Control Effort ◽  
Flow Ripple ◽  
Swash Plate ◽  
Plate Design ◽  
Axial Piston

In designing an axial piston pump, lot of attention is given to the design of the valve plate. A well designed valve plate can reduce both flow pulsations as well as oscillating forces on the swash plate. In the presented study, a computational tool, CASPAR, has been used for investigating the effect of valve plate design on flow ripple (fluid borne noise), oscillating forces (structure borne noise) and volumetric efficiency. The impact of various valve plate design parameters such as precompression grooves, cross port, indexing and additional precompression volume will be presented using simulation results from CASPAR. The study also details how rate of pressurization and decompression inside the displacement chamber directly relate to the flow ripple, forces applied on swash plate and the control effort needed to stroke the swash plate. The effect of noise reduction techniques on volumetric efficiency will also be presented with simulated results.

scholarly journals Novel design of hydrodynamic–magnetic compound support for cylinder block–valve plate in axial piston pump

AIP Advances ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 115221
Author(s):  
Jihai Jiang ◽  
Boran Du ◽  
Jian Zhang ◽  
Geqiang Li
Keyword(s):  
Valve Plate ◽  
Piston Pump ◽  
Cylinder Block ◽  
Axial Piston Pump ◽  
Axial Piston ◽  
Novel Design

scholarly journals Load of the slipper-swash plate kinematic pair of an axial piston pump

2018 ◽  
Vol 157 ◽  
pp. 08013 ◽  
Author(s):  
Tadeusz Złoto ◽  
Konrad Kowalski
Keyword(s):  
Piston Pump ◽  
Geometrical Parameters ◽  
Kinematic Pair ◽  
Axial Piston Pump ◽  
Swash Plate ◽  
Axial Piston

The paper presents problems related to the twisting moment of the slipper. The load of the slipper and the piston has been presented and the complex formula of twisting moment of the slipper has been established. Achieved results has been presented graphically. The conducted research has indicated that the value of the twisting moment relays on both the exploitation and geometrical parameters.

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