Analysis on the Side Leakage Amount of the Friction between Piston and Cylinder Block in Axial Piston Pump

Abstract:

The spherical distribution pairs of the plunger and the cylinder friction, has an important influence on the performance of spherical port plate axial piston pump. Based on the analysis of fluid viscosity change with pressure and temperature, considering friction differential pressure flow and shear flow, establishes the mathematics model of the friction pair of leakage. The simulation analysis using MATLAB software, the leakage flow rate is not proportional to pressure, but with the increase of pressure leakage flow was increased, and with the increase of pressure viscosity coefficient and temperature coefficient of viscosity, the leakage flow rate correction coefficient increases obviously, so in the choice of the hydraulic oil cylinder hole, should choose a relatively moving average leakage rate had no effect the piston ring slot.

• Periodical: Applied Mechanics and Materials (Volumes 635-637)
• Pages: 341-345
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.635-637.341
• Online since: September 2014
• Authors: Wei Wang
• Keywords: Axial Piston Pump, Cylinder Block, Friction Pair, Plunger

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