Tuesday, September 5, 2017

Rolls Royce UltraFan engine development reach new milestone

Rolls Royce's under development UltraFan® geared turbofan engine have reached a new developmental milestone, almost a year after commencing testing in October 2016.

The planetary Gearbox for the engine successfully reached 70,000 horsepower while on test at Rolls-Royce’s dedicated facility in Dahlewitz, Germany.


Eventually the gearbox will reach up to 100,000 horsepower – the equivalent of more than 100 Formula 1 cars.

UltraFan is one of the two new generation engines which Rolls Royce is developing. Equipped with a intermediate gear box, the UltraFan will offer a 25% fuel efficiency improvement over the first generation Rolls Royce Trent 700 engine and will be available from 2025.

While the Advance engine will offer 20 percent fuel efficiency improvements from 2020, without the geared architecture. It relies on the material advancements to achieve the efficiency, like advanced lightweight alloys and a new carbon titanium fan system, comprising the fan blades and fan casing.

UltraFan's Power Gearbox, introduced between the fan and intermediate pressure compressor, enable the fan, engine compressor and the turbine to run at their optimum speeds.

The carbon titanium fan system is further developed to allow the removal of the thrust reverser, enabling a truly slim-line nacelle system.

Rolls Royce is working in partnership with Liebherr-Aerospace, through their Aerospace Transmission Technologies joint venture, to develop manufacturing capability and capacity for the new power gearbox. RR is leading the design definition and design integration of the power gearbox, as well as testing activities.