scholarly journals Surface Nano-structured Coating for Improved Performance of Axial Piston Pumps

2019 ◽  
pp. 295-314 ◽  
Author(s):  
Antonino Bonanno ◽  
Mariarosa Raimondo ◽  
Stefano Zapperi
Keyword(s):  
Axial Piston Pumps ◽  
Improved Performance ◽  
Axial Piston

scholarly journals Computational Valve Plate Design in Axial Piston Pumps/Motors

2019 ◽  
Author(s):  
Paul Kenneth Kalbfleisch ◽  
Monika Ivantysynova
Keyword(s):  
Design Methodology ◽  
Valve Plate ◽  
Strong Positive Correlation ◽  
Axial Piston Pumps ◽  
Plate Design ◽  
Improved Performance ◽  
Compact Design ◽  
Physical Phenomena ◽  
Axial Piston ◽  
Modern Optimization

Many industries utilize axial piston machines for the compact design, highoperating pressures, variable displacements, and high efficiencies that faroutweigh the machines’ manufacturing costs. For all axial piston machines,the valve plate functions as an essential determinant of performance. Theaim of this research is to develop a design methodology generalizable to alltypes of valve plates while remaining accessible to users without advancedtechnical knowledge. The proposed design methodology is organized to fit theform of the standardized optimization problem statement. This organizationenables the use of any modern optimization algorithm. Specifically, the designmethodology utilizes a previously developed computer model, which is basedon the main physical phenomena influencing the design of flow passagesfrom the pump port to the displacement chambers and vice versa. The chosendesign methodology allows the precise optimization of the valve plate designby simulations rather than expensive trial and error processes. A recent casestudy demonstrated the strong positive correlation between application of themethodology and improved performance of the valve plate design.

Improving the Volumetric Efficiency of the Axial Piston Pump

2012 ◽  
Vol 134 (11) ◽  
Author(s):  
Shu Wang
Keyword(s):  
Operating Conditions ◽  
Volumetric Efficiency ◽  
Valve Plate ◽  
Piston Pump ◽  
Efficient Design ◽  
Axial Piston Pumps ◽  
Definition Of ◽  
Engineering Practices ◽  
First Time ◽  
Axial Piston

The volumetric efficiency is one of the most important aspects of system performance in the design of axial piston pumps. From the standpoint of engineering practices, the geometric complexities of the valve plate (VP) and its multiple interactions with pump dynamics pose difficult obstacles for optimization of the design. This research uses the significant concept of pressure carryover to develop the mathematical relationship between the geometry of the valve plate and the volumetric efficiency of the piston pump. For the first time, the resulting expression presents the theoretical considerations of the fluid operating conditions, the efficiency of axial piston pumps, and the valve plate designs. New terminology, such as discrepancy of pressure carryover (DPC) and carryover cross-porting (CoCp), is introduced to explain the fundamental principles. The important results derived from this study can provide clear recommendations for the definition of the geometries required to achieve an efficient design, especially for the valve plate timings. The theoretical results are validated by simulations and experiments conducted by testing multiple valve plates under various operating conditions.

scholarly journals Results of identification and optimization of the parameters of axial piston pump

2021 ◽  
Author(s):  
Radovan Petrović ◽  
Nenad Todić ◽  
Slobodan Savić ◽  
Maja Andjelković
Keyword(s):  
High Resolution ◽  
Input Data ◽  
Simultaneous Presentation ◽  
Axial Piston Pump ◽  
Optimization Of Parameters ◽  
Axial Piston Pumps ◽  
Hydrodynamic Processes ◽  
3D Software ◽  
2D And 3D ◽  
Axial Piston

In the development of applicative software for mathematical modelling, identification, and optimization of parameters of axial piston pumps, special attention is paid to the real need of the engineers' practice. We used the original graphical 2D and 3D software for the application in real-time with a simultaneous presentation and processing in 24 windows of high resolution. Here it is mentioned that during optimization and identification of axial piston pump's parameters, we automatically form and present several hundreds of the complex 2D diagrams, which enables to intervene at any point in the study of hydrodynamic processes by the change of input data, where the following flow of identification and optimization is changed.

Benchmark Trials of Axial-Piston Pumps at Different Levels of Oil-with-Water Fouling

2019 ◽  
Vol 40 (5) ◽  
pp. 416-419
Author(s):  
O. P. Budarova ◽  
S. V. Boldyrev
Keyword(s):  
Axial Piston Pumps ◽  
Axial Piston ◽  
Different Levels

Wear and Friction of ZRCG-Coated Pistons of Axial Piston Pumps

2006 ◽  
Vol 7 (3) ◽  
pp. 13-20 ◽  
Author(s):  
Hubertus Murrenhoff ◽  
Stephan Scharf
Keyword(s):  
Axial Piston Pumps ◽  
Wear And Friction ◽  
Axial Piston

Novel Piston Pressure Carryover for Dynamic Analysis and Designs of the Axial Piston Pump

2012 ◽  
Vol 135 (2) ◽  
Author(s):  
Shu Wang
Keyword(s):  
Piston Pump ◽  
Axial Piston Pump ◽  
Pump Performance ◽  
Axial Piston Pumps ◽  
Bottom Dead Center ◽  
Pump Pressure ◽  
Definition Of ◽  
And Control ◽  
Axial Piston ◽  
The Relationship

The timing definition of valve plates is one of the most complex topics in the piston pump designs because it affects many pump characteristics (such as efficiency, swashplate stroking, stabilities, noise, etc.). In the study, the pressure carryover is introduced and defined as the average angular positions to locate piston pressure transitions from the top dead center (TDC) or bottom dead center (BDC) in the piston pump. Pressure carryover presents the overall outcome of the pressure transitions within piston bores. The new pressure carryover definition is derived by the timing angles and other geometrics of valve plates that is an approximation of the practical pressure transitions. The pressure carryover also determines the containment forces and moments on the swashplate produced by the pumping pistons. The relationship between the pressure carryover angle and the containment moment has been developed and analyzed in the study. The amplitudes and frequencies of the forces and moments can be changed by varying the pressure carryover angle that produce different tonalities and control efforts for the swashplate type axial-piston pumps. Therefore, the pressure carryover is the most important and straightforward connection between pump dynamics and valve plate designs. In order to optimize the pump performance, the piston pressure carryover might be investigated thoroughly for the pump and its controller designs.

Efficacy of coatings and thermochemical treatments to improve wear resistance of axial piston pumps

2018 ◽  
Vol 126 ◽  
pp. 376-385 ◽  
Author(s):  
G. Schuhler ◽  
A. Jourani ◽  
S. Bouvier ◽  
J.-M. Perrochat
Keyword(s):  
Wear Resistance ◽  
Axial Piston Pumps ◽  
Improve Wear Resistance ◽  
Axial Piston
Sign in / Sign up

Export Citation Format

Share Document