Mtu Aero Engines Ag

Mtu Aero Engines Gmbh

Knut Werner

Hans-Peter Hackenberg

Daniel Theurich

Christian Heinzelmaier

Michael Raiche

A rotor assembly may be used in a gas turbine. The rotor assembly includes rotor segments arranged in succession in an axial direction and interconnected in the axial direction by a tie-rod, and a rotor segment disposed forwardly in the axial direction having a first contact surface and a rotor segment disposed rearwardly in the axial direction having a second contact surface. The first and second contact surfaces are at least partially in contact with each other, are substantially annular in shape, and extend in a radial direction and in a circumferential direction. The first contact surface and/or the second contact surface extend at least partially obliquely relative to the radial direction. An angle is formed between the first contact surface and the second contact surface when viewed in a sectional plane defined by the axial direction and the radial direction.

Rotor arrangement for a gas turbine with inclined axial contact surfaces formed on rotor segments, gas turbine and aircraft gas turbine

A method for repairing a rotor system () of a turbomachine, having a rotor () which has a groove () extending in the circumferential direction () of the rotor for accommodating an annular section (). The method has the following steps: chamfering a notch () in the groove (); introducing a recess () into the groove (); and inserting the annular section () into the groove (). At least one engagement element () formed on the annular section () engages in the recess () in order to form a lock against rotation in the circumferential direction ().

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Munich, Germany

Knut Werner