1. Determination of Hydraulic Motor Displacement
Reported to US TAG to ISO TC131/SC8
July 17, 2018
Paul Michael
Milwaukee School of Engineering

2. Background Motor was received via donation
Did not have serial number or nameplate
Known to be of a certain Make and Model
Displacement unknown

3. Circuit Schematic

4. Experimental Design
Orthogonal
Latin Hypercube

5. Motor Inlet Flow Rate
Orthogonal
Latin Hypercube

6. Displacement vs Pressure
Orthogonal
Latin Hypercube

7. Displacement vs Pressure – High Speed
Orthogonal
Latin Hypercube

8. Displacement vs Pressure – Low Speed
Orthogonal
Latin Hypercube

9. Torque Losses
Orthogonal
Latin Hypercube

10. Observation
Motor should be in hydrodynamic lubrication regime when displacement is determined.