305 Experiment on Slippers behavior in Swashplate-Type Axial Piston Motors

Abstract

The slippers behavior in swashplate-type axial piston motors was measured by the test rig. The operating conditions were supply pressure of up to 35 MPa and rotational speeds of 0-26.7 s −1. A petroleum-type hydraulic oil with a viscosity grade of 46 was used as the test fluid, and the temperature was maintained at value between 30 and 60 ºC. The experiment examined the influences of supply pressure, rotational speed and oil temperature. The displacement between a slipper and a rotational disk, tilt angle, azimuth angle of a slipper and frictional torque are reported. As the supply pressure increased, the clearance between the slipper and the disk, the slipper tilt angle and the slipper azimuth angle decreased, and the frictional torque increased. As the rotational speed increased, the displacement and the slipper tilt angle increased. As the oil temperature increased, the displacement decreased and the slipper tilt angle increased.