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Dry Calibration and Test of Gasoline Injectors

The automatic production line calibrates and tests PFI injectors.
A robot loads the injectors from pallets and puts them onto pucks at a conveyor system.
This conveyor connects all substations at the line.
The first substation at the conveyor is a code reading station where the part is identified.
After that, the parts are moved to the rotary table where the test substations are located.
Before the part arrives at the final dressing stations at the conveyor it can be transferred to the hydraulic audit cell. Within the audit cell the part is supplied with test fuel and tested in static and dynamic mode again.
These results are used as reference values to align the dry process to the wet conditions.
Before the robot finally offloads the injector the lower O-ring is mounted and the electrical pins of the terminal are checked by a camera.

 

GDI High Pressure Pump Performance Test Bench

The system is used to test cam driven high-pressure fuel pumps. The test bench simulates the mechanical drive and the low and high-pressure circuit.
The high-pressure pump is mounted manually on the CAM box and contacted by hand.
A change to other types of pumps is realized by changing the CAM-Box and the connection devices. The serial number of the pump can be read by a hand scanner.
There is also the possibility at the high-pressure output side of the pump to connect a customer specific rail, which is equipped with up to four injectors. These injectors can be controlled through the software or with a custom AUTO ECU. Measured signals are torque, current / voltage of the control valve, pressure and flow rates of the pump and injectors.
The inspection specifications are carried out by a database-flexible test plan system.
Individual test steps can be configured in any order and number and with different parameter settings to a flowchart. The results are recorded in a central database.

 

GDI Injector Flow and MOP

This test bench is used for the function testing of GDI-Injectors. Different injector types can be tested be means of adapters.
The bench is divided into two independent stations. In the flow station the injection quantity is tested by a Coriolis sensor and the injection timing is tested by a shotto-
shot system.
The spray station evaluates the injector spray. Not only ray, but also bottom view measurements are possible. The station allows manual tests and fully automatic test
sequences. All test parameters, like operating pressure, pulse width, injection frequency, can be set over the software.

 

GDI Injector Flow and Leak Test

This test rig provides the possibility to test the flow and leak values of a GDI-Injector. The rig has one central high-pressure supply and two separate stations.
The rig is realized with ATEX components and can be used with potentially explosive fluids.
A fast data acquisition all