Open AccessNovel study on the pressure pulsation of the axial piston machines with even number of pistons
Author(s) -
Zhou Junjie,
Jing Chongbo,
Bao Qianqian,
Wu Wei
Publication year - 2020
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2020.0046
Subject(s) - piston pump , radial piston pump , axial piston pump , piston (optics) , cylinder , mechanics , plunger pump , mechanical engineering , flow (mathematics) , variable displacement pump , position sensing hydraulic cylinder , volumetric flow rate , reciprocating pump , materials science , physics , engineering , optics , hydraulic cylinder , wavefront , plunger
Flow and pressure ripples of axial piston machines have received sustained attentions by researcher in flow power domain. Traditionally, almost all the axial piston pumps have been designed with odd number of pistons. This study presents a novel study focusing on the actual flow and pressure pulsations of even number piston pump. A fluid dynamic model based on lumped parameter approach is presented to predict the flow and pressure performance of axial piston pumps. Particularly, the cylinder and valve plate are re‐designed to fit the ten‐piston pump based on a commercial pump. Both the simulation and test results show that the pressure pulsation rate of ten‐piston pump is actually few percent bigger than that of nine‐piston pump. The relative difference is much smaller than what has been expected by the theoretical flow calculation. Therefore, the design of axial piston machines with even number of pistons may be feasible in some circumstances.