Mtu Aero Engines Ag

Stephen Royston Williams

Manfred Feldmann

Alexander Boeck

Werner Humhauser

Manuel Hertter

Lothar Albers

Vitalis Mairhanser

Alexander Böck

Johann Geppert

Thomas Binsteiner

Alexander Scharf

Robert Winsy

Stefan Herbst

Disclosed is a lever linkage for the rotationally fixed connection of a guide vane to a lever of a guide vane adjusting device of a turbomachine, wherein the guide vane has a vane shaft, which extends along a vertical axis. In accordance with the invention, the lever is formed in one piece at a radially outer end of an essentially hollow cylindrical clamping sleeve, which coaxially surrounds the vane shaft in sections, and the vane shaft and the clamping sleeve are coupled by way of a longitudinal side form-fitting connection or a front-end form-fitting connection, and the vane shaft can be tensioned with the clamping sleeve along the vertical axis by means of a fastening element, in particular a threaded nut. In consequence thereof, a separation of two different force flows that act on the guide vanes is obtained, as a result of which local load peaks are reduced.

Guide vane connection

A rotor member is described for a gas turbine that is adapted for rotating about a central axis, the rotor member being a blisk having a rotor blade row that extends around the central axis or a rotor disk having a mounting portion for installing rotor blades of a rotor blade row that extends around the central axis, and being axially offset from the rotor blade row and/or the mounting portion and, extending coaxially, having at least one annular and axially asymmetrical sealing fin that has a radially outer tip portion having a front flank facing the rotor blade row and/or the mounting portion, and an opposite flank facing away from the rotor blade row and/or the mounting portion; the front flank being less steep than the opposite flank; a turbine and a compressor having such a rotor member, and a method for manufacturing such a rotor member having at least one sealing fin coating.

Sealing fin having an axially asymmetric tip portion

A turbine blade () having an airfoil (). In its radially outer region, the turbine blade () has at least one shroud () or at least one shroud segment, as well as at least one cutting tooth () which is intended to engage at least once into portions of a turbine casing during use of the turbine blade (). The cutting tooth () is connected to the shroud () or the shroud segment.

Turbine blade having a shroud and a cutting tooth

Growing community of inventors

Seefeld, Germany

Stephen Royston Williams