Qualification of Common Rail injectors
Qualification of new and used gas, gasoline and diesel injectors
EFS has been an expert in testing injection systems for internal combustion engines for over 35 years, and now has more than 80 test benches installed worldwide
Its comprehensive range of equipment enables us to test and characterize all the common rail gasoline and diesel injectors on the market, whether new or used, over their entire operating range.
We have a reference test bench enabling us to offer you all these services.
Tests to study your injectors:
- Measurement to determine clogging (measurement before and after running)
- Measurements to compare injectors (old and new generation)
- Measurement to characterize the injector (reference injector or prototype)
- Measurement with specific fluid (for effect on injection generation)
- Determination of injector failures (analysis of instabilities in flow rate or spray generation, spray deformation, etc.).
Injector’s flow qualification
Generation of an injector map
INJECTOR SPRAY QUALIFICATION
Spray visualisation. Jet analysis
MEASUREMENT FOR INJECTOR COMPARISON OR DEDICATED QUALIFICATION
Full detailed test report
INJECTOR FLOW QUALIFICATION
Measurements with the IFR, a single-shot injection volume measurement device
- Measurement of the instantaneous injected flow rate (volume and mass) in instantaneous, averaged and cumulative values for up to 10 injections per revolution
- Real-time display of the injection rate curve (standard deviation on the injection rate to study injection stability)
- Injector control study: measurement of injector opening and closing times (injector opening and closing faults, etc.).
- Injector mapping (MAP)
- Measurement of injector leaks (temperature and flow rate in g/min of injector leak).
INJECTOR SPRAY QUALIFICATION
Measurements with INJETVISION, a vision chamber for studying jets from high-pressure injectors under inert atmosphere (nitrogen or CO2 ) up to 50 bar (±0.5 bar).
Parameters measured:
• Jet penetration (mm)
• Percentage of jet penetration (%)
• Jet opening angle (degrees)
• Jet surface area (mm²)
• Jet volume (mm³)
• Symmetry
• Spray cone angle in lambda view (degrees)
• Angle λ of a spray in lambda view (degrees)
• Angle α of a spray (degrees)
• Inter-spray angle (degrees)
• Circularity.
If you need to characterize your injector but don’t have the test equipment, or if you’re carrying out fouling measurements on a vehicle and would like to see the before and after impact on the injector, CONTACT US.
An independent and confidential report will be sent to you for all services.
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