The System Test Bench GDI has been designed for testing fuel injection systems (high pressure pump, rail with injectors) at different ambient- and fluid temperatures. The test bench simulates the mechanical drive, supply- and return circuits. It measures supply flow, pump torque, flow capacity and operating pressure of the injection system depending upon supply pressure, rotation frequency of the pump, ambient- and fluid temperature and injection times. The test bench is designed for semi-automatic operation with manual loading, unloading and automatic test sequence, predefined by flexible test plan. Manual operations and measurements are possible as well.
Highlights
- Precise coriolis flow sensor technology (upstream and downstream) (sensor accuracy ± 0.1 % of measured value)
- Precise injection quantity measurement by injection analyzer
- Comfortable Windows-PC user interface
- Flexible test plan creation and result storage with “Oracle” database
- Water-cooled servo motor with highly accurate rotation speed regulation
- Creation of cam signals for triggering of car ECU
- Thermal isolated test chamber with temperature regulation
- Fixture plate and numerous electric and hydraulic connection possibilities for flexible test arrangements
- Lubrication oil circuit for permanent lubrication of cambox
- Primary explosion protection by technical ventilation, inertization by nitrogen, HC-detection
- Energy saving high power LED-illumination inside the thermochamber:
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- Durable and low-maintenance due to external aluminum heat sinks
- Suitable for the most extreme operating temperatures
- Light source positioned externally
- No potential source of ignition inside of thermo chamber
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Technical data
- Supply pressure: 3…10 bar
- Flow rate: 1000 kg/h
- Rotation speed: 0…6000 1/min
- Torque meas. range: ± 20 Nm / 100 Nm selectable
- Counter pressure regulation: 0…5 bar
- Tempering of test fluid: -40…120 °C
- Tempering of test chamber: -40…140 °C
- Test fluids: n-heptane, ethanol blends, gasoline, ExxsolD40