Pratt & Whitney GTF™ engine

The Pratt & Whitney GTF^TM engine family jointly developed and built by Pratt & Whitney and MTU powers the Airbus A220 and A320neo family and Embraer's E-Jets. The reduction gearbox located between the fan and low-pressure compressor—on which the low-pressure turbine that drives the fan is mounted—allows the fan to rotate more slowly. At the same time, the low-pressure compressor and turbine can run faster. This helps achieve lower fan pressure ratios, and thus higher bypass ratios, and lets all components achieve their optimum performance. Consequently, the geared turbofan has very high overall efficiency. Compared to the previous engine generation, the GTF engine family represents a reduction in CO₂ emissions of 20 percent with a noise footprint that is 75 percent smaller. A further advantage is that its fewer compressor and turbine stages make for a lighter engine.

Pratt & Whitney will launch the GTF Advantage™ engine configuration, unveiling a technologically improved geared turbofan engine for the A320neo family. 
 

MTU’s involvement in the GTF engine family

MTU’s share in the GTF engine family is as much as 18 percent, depending on the application. In addition to being responsible for the high-speed low-pressure turbine and the first four stages of the high-pressure compressor, MTU also manufactures brush seals and nickel blisks for high-pressure compressor components that fall outside its design responsibility. Moreover, MTU in Munich is responsible for the final assembly of one-third of the production PW1100G-JM for the A320neo.