Alstom Technology Limited

Alstom (switzerland) Ltd

Abb Management Ag

General Electric Technology Gmbh

Pavel Rihak

Hans Wettstein

Werner Martin Balbach

Joachim Krautzig

Ernst Pauli

Ulrich Waltke

Wolfgang Kappis

Ferdinand Thueringer

Ren&eacute; Bachofner

Eduard Primoschitz

A pressure casing has a plurality of casing shells () which can be connected in a pressure-tight manner in a parting plane () by a flange (). The casing shells () are pressed together with sealing effect in the parting plane () in the region of the flange () by at least one threaded bolt (-) which extends through the flange () perpendicularly to the parting plane (). A reduced thermal loading of the threaded bolts (-) of the flanged joint is achieved by the at least one threaded bolt (-) being exposed over a part of its length towards the inner side of the casing ().

Pressurized casing

Described is a fixation device for blading of a turbo-machine, in which, longitudinally to a mounting groove ( ), a plurality of blades ( ) is positioned, and in which, between at least two blades ( ) positioned adjacent to each other inside the mounting groove ( ), a mounting gap is provided, having two insertion elements constructed as collar halves ( ) that can be inserted into the mounting gap, and each of which has a width adapted to the width of the mounting gap and which enclose between themselves a gap space ( ) into which a wedge element ( ) can be inserted that can be wedged in such a way that both collar halves ( ) are fixed in a force-derived manner by means of the wedge element ( ) inside the mounting groove ( ). The invention is characterized in that the wedge element ( ) is provided with at least one connecting element ( ) towards the side of a blade ( ) and that at least one of the two blades ( ) adjoining the wedge element ( ) is provided with a counter-contour ( ) corresponding to the connecting element ( ), so that the wedge element ( ) and the blade enter ( ) into an intimate shape-mated connection with each other.

Fixation device for blading of a turbo-machine

The gas turbine has a bladed rotor welded together from a plurality of disks. Hollow spaces are present between the disks and axial passages are present in the periphery of the rotor between the rotor surface and platforms formed by the rotor blades and segmental heat barrier plates. In accordance with the invention, these axial passages are fed with cooling air from at least one hollow space between two rotor disks. The at least one hollow space is in connection with the axial passages mentioned, preferably by of connecting openings. It is fed from a central cooling air supply passage starting from the downstream end of the rotor. The cooling air is preferably tapped from the cycle air at the central part of the compressor so that low-pressure cooling occurs.

Gas turbine with cooled rotor

Growing community of inventors

Baden, Switzerland

Pavel Rihak