Hydraulic pumps and motors test rig (research)

Manufacturer: Bimal S.r.L

Year: 2007

The test bench allows the acquisition of steady-state and dynamic characteristics of pumps and motors up to 100 kW of power. It is remotely controlled via a National Instruments real-time system. The layout is a closed-loop circuit. For pump testing, the system is equipped with a boost pump and a fluid recirculation circuit for temperature control. A valve is also included to generate sudden load changes in order to assess the dynamic performance of the pump displacement control. For motor testing, the flow is supplied by the laboratory’s power unit, and the shaft line electric motor acts as a brake, regenerating power back into the electrical grid.

Technical data

  • Shaft speed range: 0-5000 rpm
  • Max shaft torque: 450 Nm
  • Max oil temperature - pump test: 70 °C
  • Max delivery flow rate - pump test: 200 L/min
  • Max delivery pressure - pump test: 350 bar
  • Max inlet pressure - pump test: 25 bar
  • Oil temperature - motor test: 40-50 °C
  • Max inlet flow rate - motor test: 160 L/min
  • Max inlet pressure - motor test: 280 bar
  • Minimum outlet pressure - motor test: 2 bar
01 Overall view 02 Particular of the driveline 03 Particular of the hydraulic circuit 04 View from the operator control unit
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