For decades, MTU has been developing, manufacturing, repairing and overhauling this component, which forms the centerpiece of an aircraft engine. Today’s compressors are predominantly built on the blisk principle, where the disk and blades are manufactured as a single part. This design offers clear advantages: greater tensile strength, lower weight, greater geometrical accuracy on the blades to enhance the aerodynamic characteristics, no blade roots or disk slots to suffer wear and tear, and no assembly costs.
The new high-pressure compressor developed with Pratt & Whitney is the core component of the GTF engine family for commercial regional and business jets and short- to medium-haul airliners. Current MTU flagship products in the military area are the compressors for the EJ200 engine that powers the Eurofighter Typhoon and for the TP400-D6 engine that powers the A400M military transporter.
Active systems will play a growing role in compressors in the future. These are as-semblies that respond to variations in operating conditions. And further improvements in aerodynamic design coupled with smaller part sizes help lower fuel consumption. Integrated structures (produced in a single piece) and new materials hold the key to significant reductions in weight.