Internal Gear Pump

Internal Gear Pump

Product Details:


Product Description

Internal Gear Pump

Internal gear pumps, or crescent pumps, are characterised by their low pulsation, high efficiency, low level of noise, and high operating pressures. An internal gear drives an external toothed ring. Since the driving gear is mounted on an eccentric bearing, clearances result in the gaps between the gear and ring. These clearances form the delivery volume. A crescent-shaped seal between the gear and the ring forms the enclosed volume that is necessary to reach the required pressure.

Learning objectives/experiments

  1. Recording of pump characteristics, system characteristics and operating point
  2. Power requirement, hydraulic power, pump efficiency


  1. Investigation of an internal gear pump
  2. Operation with oil pump supply unit
  3. Powered by Universal Drive and Brake Unit
  4. Safety valve protects against overpressure in the system
  5. Display of temperature, pressures and flow rate on the display unit 


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