fuel injection technology Test Bench High Pressure Pump GDI


The Test Bench High Pressure Pump GDI offers a full automatic testing of cam-driven high pressure fuel pumps. The mechanic drive and the low- and high-pressure proof-circuit are simulated by the test bench.
The test devices are manually supplied to the machine. Inside the test bench a gripper handling is used for the transport of the pumps. There is also a camera for detection of the serial numbers of the pumps. The test is carried out in two independent working stations.
The automatic contacting of the test device inside the machine takes place on an easy changeable workpiece carrier. The changeover to a different pump type happens by changing of this pump-specific workpiece carrier. Hereby a high flexibility of the test bench to different geometries of the low-and high-pressure connector and to the electrical contacting of the test device is assured. Sliding protection separations of the stations allow to run a half machine in production mode during maintenance works.
The test parameters are adjusted through a data-based flexible test plan system. The individual test steps can be positioned in any order and number and with different set-point limits.
By means of the central data base on a separate server-PC it is possible to easily connect several test benches of the same type. On the server all results are automatically stored and archived.


  • Comfortable PC user interface
  • Water-cooled servo drive with very exact speed regulation
  • Variable current signal generation for control of the pump internal volume-control-valve via Sonplas universal solenoid driver board
  • Data-based, flexible proofplan setting and storage of results on a separate server-PC
  • Sonplas Report-Tool for statistical analysis and export of results
  • Operation and maintenance of single station due to sliding protection walls possible

Technical data  

  • Medium Exxsol D60
  • Flow: 3,7 l/min
  • Low pressure supply test device: 1 – 9 bar
  • High pressure test device: 10 – 300 bar
  • Air supply: > 6 bar
  • Voltage supply: 3 ~ 400 V / 50 Hz (3P / N / PE)
  • Cooling water supply: min.20 l/min, < 17°C, > 2,5 bar
  • Exhaust: 60 m³/h