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Liebherr Excavators
iebherr Common Rail solutions for commercial vehicles and machinery for on- and off-highway applications

iebherr Common Rail solutions for commercial vehicles and machinery for on- and off-highway applications

Product catalog summary

Technical Specifications
The Liebherr Common Rail solutions offer system pressures ranging from 250 to 2,500 bar, supporting engine power of approximately 95 kW per cylinder. The system allows for 5 to 7 injections with a hydraulic flow rate between 400 to 1,300 ml per 30 seconds and a nozzle diameter of 7 mm. The maximum hydraulic flow for the pump is 265 l/h, with control leakage per injector being less than 15 ml/min.

Flexible System Solutions
Liebherr provides modular Common Rail System solutions for medium- and heavy-duty engines in both on- and off-highway sectors. These systems can achieve power ranges up to 600 kW and are designed for pressures from 1,800 to 2,500 bar. The injectors are designed to be leak-free with minimal control rates, ensuring high efficiency and low fuel consumption. The engine control unit optimizes injection control.

Modular Design
The system's modular design allows for easy combination and adaptation to specific engine designs. Various design variants and interfaces enhance the flexibility of Liebherr’s Common Rail Systems.

Precision Manufacturing
Liebherr manufactures most of the functional micro-precision parts in-house, allowing for flexibility in meeting customer-specific requirements for fuel injection.

Stable Performance
The injection components are designed for dynamic loads in various vehicles and are validated in-house, supporting the use of alternative fuels.

Engineering Competence
Liebherr experts define specific functionalities and requirements for injection processes, drawing on extensive experience in diesel engine development and production.

Component Details

Injector LI1: System pressure 250 – 2,500 bar, hydraulic flow rate 400 – 1,200 ml/30 sec.
High Pressure Pump LP7.2: System pressure 250 – 2,500 bar, max hydraulic flow 265 l/h, rated pump speed 3,500 rpm.
Injector LI2: System pressure 250 – 2,500 bar, hydraulic flow rate 600 – 1,300 ml/30 sec.
High Pressure Pump LP9.2: System pressure 2,200 bar, max hydraulic flow 220 l/h, rated pump speed 3,750 rpm.
Engine Control Unit ECU3: Supports Euro V/VI, EPA Tier 4f, EU Stage IV/V standards, and diesel/mobile gas engines with up to 6 cylinders.

Liebherr Components Overview
Liebherr offers a wide range of solutions in mechanical, hydraulic, electric, and electronic drive systems and control technology. Their components are produced globally to high-quality standards, with central contact points available for customer support.

Catalog excerpts

iebherr Common Rail solutions for commercial vehicles and machinery for on- and off-highway applications-1

Liebherr Common Rail solutions for commercial vehicles and machinery for on- and off-highway applications

Open the catalog to page 1

iebherr Common Rail solutions for commercial vehicles and machinery for on- and off-highway applications-2

Liebherr offers complete Common Rail System solutions in a modular design for medium- and heavy-duty engines of commercial vehicles and machines in the on- and off-highway sector. The flexibly combinable injection components are designed for system pressures from 1,800 to 2,500 bar. Combined as system solutions, power ranges up to approximately 600 kW are achieved. Permanently leak-free injectors with minimal control rates combined with high pump efficiencies produce an efficient hydraulic system with above-average low fuel consumption. The Liebherr engine control unit ensures optimum injection...

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iebherr Common Rail solutions for commercial vehicles and machinery for on- and off-highway applications-3

Modular design Thanks to intelligent design and flexible connections, the modular individual components can be easily combined and adapted to specific engine designs. Different design variants, variable drive flanges and individual interfaces make Liebherr’s Common Rail Systems so flexible. Precision parts produced in-house Liebherr manufactures a major part of the functional microprecision parts in-house. The high degree of vertical integration and the corresponding technical expertise allow us to flexibly respond to customer-specific special requirements for fuel injection. Stable performance...

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iebherr Common Rail solutions for commercial vehicles and machinery for on- and off-highway applications-4

Liebherr Components Slewing bearings Diesel engines Fuel injection systems Human-machine interfaces Control electronics and and gateways sensor technology Electric machines Power electronics From A to Z – the components division of the Liebherr Group offers a broad range of solutions in the area of mechanical, hydraulic, electric and electronic drive system and control technology. The efficient components and systems are produced at a total of ten production sites around the world to the highest standards of quality. Central contact persons for all product lines are available to our customers...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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