Common rail injector LI2

Liebherr engineers used solid materials and a flat-seat control valve in the design of the LI2 common rail injector. The resulting injector is particularly robust against aggressive fuels and thus ideally suited for demanding use in off-highway applications. The permanently leak-free injector is tuned to minimal control leakage and is thus very efficient despite low fuel consumption. Two different nozzle diameters and different housing sizes are available for the LI2 injector. The function-related micro-precision parts are produced in-house and so the injector is custom-adapted to the needs of each customer and application.
System pressure 250 - 2,200 bar
Control leakage/injector < 30 ml/min at 2,200 bar
Service life off-highway 7,500 h (B10)

System pressure 250 - 2,200 bar
Number of injections 5
Min. injection separation 250 µs
Control leakage/injector < 30 ml/min at 2,200 bar
Injector configuration side feed / top feed
Weight 0.450 kg
Service life on-highway 1.60 Mil km
Service life off-highway 7,500 h (B10)
No. of holes 6 - 10
K-factor 0.0 - 2.5
HE factor 10 - 35 %
Ambient temperature -30 to 125 °C
Vibration specification ISO 10816-6 / VDI 3838
Nozzle diameter 7 mm 9 mm
Nozzle flow 600 - 1,300 ml/30 sek 1,400 - 2,600 ml/30 sek
Max. power per engine cylinder [kW/cyl.] 85 145
Injection quantity (mg) 370 mg 600 mg

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