Mtu Aero Engines Gmbh

Gerhard Brueckner

Manfred Feldmann

Bernd Kislinger

Joachim Wulf

A turbomachine has a stator and a rotor, wherein the rotor has blades () and the stator has a housing () and stationary guide vanes (), wherein the guide vanes () form guide vane rings () that adjoin the housing () with radially outwardly positioned ends () and adjoin the rotor with radially inwardly positioned ends. The guide vane rings are spoke-centered with the aid of bearing journals or guide pins () allocated to the housing () and penetrating through the housing (). The guide pins () extend at a slant relative to the radial direction and the axial direction of the turbomachine, wherein the ends () of the guide pins () reaching into the housing engage in forked elements () allocated to the radially outer ends () of the guide vane rings ().

Turbomachine, especially a gas turbine

A fastening device for fastening moving blades to a disk of a turbomachine rotor includes moving-blade roots which have a mirror-symmetrical cross section with projections, axial disk slots holding the moving-blade roots in a positive-locking manner, and one riveted joint per moving blade for axially fixing the latter. Each blade root and the disk, in the region of each moving-blade root, have axial extensions. The extensions of moving blade and disk are opposite one another in pairs, in each case a hole lying in a radial plane relative to the disk axis is formed half in the extension of the moving blade and half in the extension of the disk. A rivet is inserted into each hole and fixed by plastic deformation.

Growing community of inventors

Altomuenster, Germany

Gerhard Brueckner