LI2
Common rail injector
Highlights
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 (7 and 9 mm) 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.
Pressure - 250 - 2,200 bar
250 - 2,200 bar
Control leakage/injector - < 30 ml/min at 2,200 bar
< 30 ml/min at 2,200 bar
Service life off-highway - 7,500 h (B10)
7,500 h (B10)
Injector configuration - side feed / top feed
side feed / top feed
Highlights
Continuous leak-free operation
Extremely robust against aggressive fuels
Different injection rates possible due to a 3-way valve
Euro VI, US 10, EU Stage V, US EPA Tier 4f compatible
Photo gallery
Technical data
| 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 |
Variants
| 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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Learn more about our production site for injectors, high pressure pumps, and injection solutions for diesel and alternative fuels in Deggendorf, Germany.
In addition to individual components and system solutions, Liebherr also offers comprehensive customer service to ensure the performance of our components throughout their entire lifecycle.
Decades of experience in the development and manufacture of diesel engines result in self-manufactured components and common rail solutions used in heavy-duty and large engines.