Germany. ROLLS-ROYCE ACQUIRES TECHNOLOGY FOR THE ELECTRICALLY-ASSISTED CHARGING OF ENGINES

Monday, 25 September 2017

Development collaboration between MTU and G+L innotec is to lead technology to series production readiness

Implementation as of 2021 in engines for ships, emergency gensets and land vehicles

FRIEDRICHSHAFEN – Rolls-Royce has acquired from G+L innotec the exclusive rights of use for a new technology for the electrically-assisted charging of off-highway combustion engines in the power range above 450 kW. The new invention from the development and engineering services provider based in Laupheim in southern Germany is protected by patents and has thus not been available on the market to date. Rolls-Royce plans to offer engines of its MTU brand with this technology as of 2021. “Electrically-assisted charging is a milestone on the way to the hybridising of the engine. Using this technology, it will be possible for us to develop agile, low-consumption engines,” said Dr. Johannes Kech, Director of Development Turbocharging & Fluid Systems at MTU. MTU and G+L innotec will complete the next stages of development on the basis of a close partnership.

Electrically-assisted charging technology

The electrically-assisted charging system comprises an electric drive combined with a traditional turbocharger developed and manufactured by MTU. As a result, the turbocharger can be accelerated electrically and the charge pressure built up earlier. In operating conditions, in which the energy required for a faster charge pressure of the turbine would normally not be sufficient, it is also possible to build up with the aid of the electric drive. Using the technology developed by G+L innotec, MTU will be able to increase the acceleration capability of marine engines, for example, and also the load response capabilities of generator drives significantly. In addition it will also be possible to reduce the engine’s fuel consumption and emissions in a variety of different applications. Due to the increased load response capability, emergency standby gensets will be able to deliver their full output even faster than was previously the case. This technology is ideally suited to diesel and gas engines.

Operating principle of the electric drive from G + L innotec

To provide the turbocharger with electrical assistance, a permanent magnet is installed upstream of the compressor wheel and the electrical winding is integrated into the casing of the compressor. With this arrangement, the air drawn in by the compressor is not obstructed and at the same time the electrical components are cooled by the air. The special feature of this arrangement is the large gap between the magnet and winding. This so-called media gap motor requires specially designed power electronics. This ensures that there is no aerodynamic impact on the charger and also that existing chargers can be adapted easily to enable them to make use of this technology.

First applications: ships, emergency gensets and land vehicles

On the basis of a development collaboration agreement with G+L innotec, MTU has equipped turbochargers with this electric drive and has carried out component tests to determine its possible potential. In the next stage, the two partner companies will prepare the new products for series production, so that as of 2021, MTU will be able to launch engines equipped with this technology on the market. The first areas of application suitable for these engines include ships, emergency gensets and land vehicles.

About Rolls-Royce Holdings plc

Rolls-Royce’s vision is to be the market-leader in high performance power systems where our engineering expertise, global reach and deep industry knowledge deliver outstanding customer relationships and solutions. We operate across five businesses: Civil Aerospace, Defence Aerospace, Marine, Nuclear and Power Systems.

Rolls-Royce Power Systems is headquartered in Friedrichshafen in southern Germany and employs around 10,000 people. The product portfolio includes MTU-brand high-speed engines and propulsion systems for ships, power generation, heavy land, and rail and defence vehicles and for the oil and gas industry. Under the MTU Onsite Energy brand, the company markets diesel gensets for emergency, base load and peak load applications as well as cogeneration plants using gas engines for the combined generation of heat and power. Bergen medium-speed engines power ships and power generation applications. L’Orange completes the portfolio with fuel injection systems for large engines.

Rolls-Royce has customers in more than 150 countries, comprising more than 400 airlines and leasing customers, 160 armed forces, 4,000 marine customers including 70 navies, and more than 5,000 power and nuclear customers.

We have three common themes across all our businesses:

Investing in and developing engineering excellence

Driving a manufacturing and supply chain transformation which will embed operational excellence in lean, lower-cost facilities and processes

Leveraging our installed base, product knowledge and engineering capabilities to provide customers with outstanding service through which we can capture aftermarket value long into the future.

Annual underlying revenue was £13.8 billion in 2016, around half of which came from the provision of aftermarket services. The firm and announced order book stood at £80 billion at the end of 2016.

In 2016, Rolls-Royce invested £1.3 billion on research and development. We also support a global network of 31 University Technology Centres, which position Rolls-Royce engineers at the forefront of scientific research.

Rolls-Royce employs almost 50,000 people in 50 countries. More than 16,500 of these are engineers.

The Group has a strong commitment to apprentice and graduate recruitment and to further developing employee skills. In 2016 we recruited 274 graduates and 327 apprentices through our worldwide training programmes.

With best regards,

Silke Rockenstein

Spokeswoman Trade Media

Rolls-Royce Power Systems AG

Communications

Maybachplatz 1

88045 Friedrichshafen/Germany

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