The piston pump is the key power component in the civil aircraft hydraulic system, and the
most common pump used in the aviation field is the pressure compensated variable …

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 …

Axial piston pumps have been widely used in aircraft hydraulic systems to supply the system
with pressurized fluid. The continuous improvement of the aircraft performance has put …

Increasing the rotating speed of the axial piston pump is effective in improving the power-to-
weight ratio. However, the cylinder block tilts severely at high speed, which causes …

Axial piston pumps are widely used in construction machinery due to the high power density.
The leakage performance of the spherical valve plate pair is of great significance to the large …

Abstracts High-speed axial piston pumps are the key components of electro-hydrostatic
actuators (EHA). Pumps of this kind have been used in large civil aircraft like the Airbus …

Electro-hydrostatic actuator (EHA) pumps are usually characterized as high speed and small
displacement. The tilting inertia moment on the cylinder block produced by the inertia forces …

An optimization model is established for the multi-scale textured cylinder/valve plate
interface in axial piston pumps by coupling the lubrication model of the oil film, the cylinder …

The purpose of this paper is to investigate the variation in the coefficient of friction (CoF) and
also the wear in a lead bronze coating under different texture conditions. The tribological …

To improve its working performance, the flow ripple characteristics of an axial piston pump
were investigated with software which uses computational fluid dynamics (CFD) technology …