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Gerotor Performance

Pump performance can be simulated and analysed from within GDS. The performance is based on the designed gerotors and porting, but further information regarding the gerotor material properties and the fluid properties must also be entered.

Initial performance results showing the maximum tool size which can be used for manufacture; maximum pump speed to avoid cavitation; the size and direction of the shaft side load and the pressure ripple are given on the desktop.

Additionally a number of charts can be produced showing:

  • Flow vs Pressure
  • Drive Power
  • Contact Stress between rotors
  • Pressure Ripple
  • Volumetric, Mechanical and Overall Efficiencies

These can be resized and copied, printed or saved to a file for future use. The charts and data can also be exported directly to Microsoft Excel.

Detailed performance data can also be produced in .csv format, from which further analysis can be made. This type of data is available for:

  • Torque and Power
  • Lobe sliding velocities, Contact Force & Stress
  • Volumetric, Mechanical & Overall Efficiency
  • Volumetric data (pump filling, pressure ripple)

All of the performance data can be used in a design-analysis loop to optimise your gerotor / porting design to achieve the results you desire. The effects of tip and axial clearances, gerotor size and speed, fluid viscosity, vapour pressure and delivery pressure can be seen instantly.

 

 

Home
Gerotor Design
CAD Modelling
Manufacture
Performance
Licensing
Free Trial
Prototypes
Future
Contact

 

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