Common Rail System 11.5

Liebherr offers the 11.5 system for large engines with an output range between 1,000kW and 5,000kW. The injectors make a maximum injection quantity of 1,200mm³ available per cycle, ensuring a reliable fuel supply to engines with a power output of up to 300kW per cylinder. Two high pressure pumps are available – the 5-cylinder in-line pump delivers 750 litres of fuel at 2,200 bar. Delivery is up to 900 litres per hour for the 6-cylinder pump.
Gallery loading.
System pressure 400 - 2,200 bar
Number of injections 4
Rate shape ramp / square
Emission standards EPA Tier 2 / IMO III / TA Luft / EPA Tier 4f
Areas of application Decentral energy systems / Maritime applications / Mining / Building construction and civil engineering / Railway
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Technical data

System pressure 400 - 2,200 bar
Engine power range 1,000 - 5,000 kW
Number of injections 4
Rate shape ramp / square
Hydraulic flow rate 1,400 - 4,000 ml/30sec
Nozzle diameter 13 mm
Max. injection quantity (mm³) 1,200 mm³
Max. injection quantity (mg) 1,000 mg
Max. pump speed 4,500 rpm
Max. hydraulic flow (pump) 825 l/h
Displacement 4.0 - 6.0 l/cyl
Max. engine power/displacement 250 kW/cyl.
Emission standards EPA Tier 2 / IMO III / TA Luft / EPA Tier 4f
Control leakage/injector < 50 ml/min at 2,200 bar
Injector configuration top feed
Engine control unit ECU2-HD / ECU3
Areas of application Decentral energy systems / Maritime applications / Mining / Building construction and civil engineering / Railway

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