Technologies for the future
Constant investment into research and development play a key role in our long-term vision and strategy. This allows Liebherr-Aerospace and Transportation Systems to develop technologies that are employed in next generation aircraft and rail vehicles as well as in the automotive industries.
Next Generation Aircraft
For several years, there has been a strong trend towards more electric systems for the next generation of aircraft. This approach will allow to improve safety and to increase the overall efficiency of the airplane while decreasing noise emissions and fuel burn.
The more electric systems developed by Liebherr are designed to achieve such challenges, decreasing weight and engine consumption thanks to the ability to adjust, for each flight phase, the energy generation to the precise needs of the onboard consumers.
Technologies for tomorrow
To be ready for the aircraft that will enter service in the future, Liebherr-Aerospace, in line with the long-term vision of the Liebherr Group, consistently invests above industry-average ratios into the R&D activities in its fields of expertise: landing gears, flight controls, actuation, gears and gear boxes and air management systems.
In particular, Liebherr works on such topics as next generations of electric actuators, e-taxiing, electric wing, electric environmental control system, auxiliary power generation systems, hydraulic power supply, and thermal and power management on-board the aircraft.
Video: Clean Sky - All Electrical Aircraft Flight Test Campaign
Originally, air cycle air conditioning technology was developed for the aerospace industry, where it has been used for more than four decades for air conditioning in aircraft. As one of the very first companies, Liebherr also began employing this technology in rail vehicle equipment. In 2002, Liebherr-Transportation Systems fitted a train of German operator Deutsche Bahn AG (DB) – an ICE 3 – with air cycle air conditioning systems for test runs. Additional fittings for the first model series as well as 13 eight-car trains of the second model series of the ICE 3 followed.Learn more about Liebherr’s participation in the ICE 3
Environment-friendly and successful
Since then, the systems have proven extremely successful in DB's daily passenger transport operations. They are characterized, in particular, by their environmental friendliness, their robustness and their low operating costs. Furthermore, the energy consumption of air cycle air conditioning systems is extremely low compared with conventional systems. This has been verified, among other ways, through comparative measurements by DB.
The very successful results of the air cycle air conditioning systems are not only an affirmation for Liebherr-Transportation Systems, but also an incentive to work intensively on further developing air cycle technology and to make it usable for a wider spectrum of applications.
For more than one decade, Liebherr has been collaborating with major automotive manufacturers to develop the future generation of fuel cell vehicles.
Liebherr-Aerospace’s air bearings technology for centrifugal compressor developed for aerospace activities powered by a high-speed electric motor has been identified as the best candidate to supply compressed and pressurized air to the fuel cell system.
Robust, reliable and efficient
Liebherr’s motorized compressor complies with the severe requirements of fuel cell systems for the automotive industry: very robust and reliable, it does not require oil, it is compact in size, highly efficient, optimized in cost and noise emissions, and it features a fast dynamic response.
This has been demonstrated in the field where more than one hundred vehicles using motorized turbo compressors by Liebherr have run millions of miles without any failure since 2007.