Siemens Aktiengesellschaft

Siemens Energy Global Gmbh & Co. Kg

Holger Grote

Marc Tertilt

Wolfgang Kollenberg

Andreas J Heilos

Christos Georgios Aneziris

Claus Krusch

Fathi Ahmad

Mirko Milazar

Olga Deiss

Nora Gerlach

Margarete Herz

Giuseppe Gaio

Christian Lerner

Bernd Vonnemann

Thomas-Dieter Tenrahm

Friederike Lange

Matthias Gralki

Christian Nikasch

Daniel Schmidt

Christine Rasch

Dieter Nikolay

Uwe Klippel

Harm Speicher

Stefan Schafföner

Heinz-Jürgen Grob

Mathias Stutt

Marvin Hümbs

Andreas Heilos

There is described a heat shield element comprising a hot side which is turned towards the hot medium, a cold side which is turned away from the hot medium, peripheral sides which connect the hot side to the cold side and a material volume which is defined by the hot side, the cold side and the peripheral sides, wherein the material volume comprises at least two material areas which are made of different materials. The materials are different from each other at least in respect of their resistance and/or thermal expansion coefficient.

Heat shield element, method and mold for the production thereof, hot-gas lining and combustion chamber

A turbine guide vane system, in particular for a gas turbine is provided. The turbine guide vane system includes a number of guide vane rows and a guide vane carrier, to enable particularly simple replacement of guide vanes, while maintaining a particularly high degree of efficiency, and thus designed for particularly short repair durations. For this purpose, the guide vane carrier has a number of segments, wherein a segment extends over the entire radial extension of the guide vane carrier and the connection of the remaining segments may be detached, and wherein the turbine guide vane carrier includes at least two sections along the axial extension thereof that are connected to one another and have a different number of segments.

Guide vane system for a turbomachine having segmented guide vane carriers

A pressure casting slip for producing a refractory ceramic for use as a heat shield, e.g. in the hot gas path of gas turbine units, includes a particulate mixture of at least two materials having different coefficients of thermal expansion and also organic and/or inorganic binders and floating agents. The particulate mixture has a multimodal particle size distribution divided into 10-20 percent by weight of coarse particles in the size range 1-5 mm in diameter, 10-20 percent by weight of medium particles in the size range 0.5-1 mm in diameter and 60-80 percent by weight of fine particles in the size range up to 0.5 mm in diameter which together make up 100 percent by weight of the particle mixture.

Pressure casting slip and refractory ceramic produced therefrom for gas turbine units

A material composition for producing a fireproof material having a fine-grain fraction with grain sizes of less than 100 &#x3bc;m and a coarse-grain fraction with grain sizes of more than 100 &#x3bc;m is provided. The fine-grain fraction includes aluminum oxide having a weight proportion of at least 90% by wt. in relation to the total weight of the fine-grain fraction, zirconium oxide having a weight proportion of up to 5% by wt. in relation to the total weight of the fine-grain fraction, a stabilizer for the zirconium oxide as well as titanium oxide powder having a weight proportion of up to 5% by wt. in relation to the total weight of the fine-grain fractional. The coarse-grain fraction represents a weight fraction of more than 30% by wt. of the material composition.

Material composition for producing a fireproof material and the use thereof, and fireproof molded body and method for the production thereof

A highly durable, high-strength thermal shield element is provided for the interior lining of the combustion chamber of a gas turbine. For this purpose, the thermal shield element comprises a base produced from a solidified cast ceramic material into which a plurality of reinforcing elements are integrated, to increase the tensile strength of the thermal shield element.

Heat shield element, in particular for lining a combustion chamber wall

A method for producing a refractory molded boy using a material composition having a fine-grain fraction with grain sizes of less than 100 &#x3bc;m and a coarse-grain fraction with grain sizes of more than 100 &#x3bc;m. The method includes the steps of adding a dispersing agent and/or a liquefier to the material composition unless the material compositing already includes the dispersing agent and/or liquefier, forming the material composition into a molded body, and sintering the molded body at a temperature above 1300 degrees Celsius.

A material mixture for producing a fireproof material, including spinel and zirconium oxide and a coarse-grained fraction with a weight fraction of greater than 50% and a fine-grained fraction, wherein the coarse-grained fraction includes coarse grains with dimensions larger than 20 &#x3bc;m and the fine-grained fraction includes fine grains with dimensions smaller than 20 &#x3bc;m.

Material mixture for producing a fireproof material, fireproof molded body and method for the manufacturing thereof

The invention relates to a ceramic component comprising a surface which is resistant to hot gas, and a method for the production thereof. Said ceramic component comprises a ceramic body and a surface which is resistant to hot gas. According to the invention, the surface which is resistant to hot gas is provided with a poorly reactive mineral coating.

Ceramic component with surface resistant to hot gas and method for the production thereof

Disclosed is a molding compound for producing a fireproof lining, especially for a combustion chamber of a stationary gas turbine. The molding compound is characterized particularly by the fact that the molding compound is formed from more than about 50 percent by weight of silicon carbide and less than about 50 percent by weight of aluminum silicate.

Molding compound for producing a fireproof lining

Disclosed is a molding compound for producing a fireproof lining, especially for a combustion chamber of a stationary gas turbine. Said molding compound is characterized particularly by the fact that the molding compound is formed from more than about 50 percent by weight of silicon carbide and less than about 50 percent by weight of aluminum silicate.

Thermal shield, especially for lining the wall of a combustion chamber

The invention relates to a heat shield block, particularly for lining a combustion chamber wall, with a hot side that can be subjected to the action of hot medium and with a wall side situated opposite the hot side. A core area, which has a core material, extends inside the heat shield block from the hot side to the wall side. The core area is surrounded by an edge area with an edge material whose heat conductivity is lower than that of the core material. This targeted thermal insulation in the edge area provided in the form of a material bond between the core material and the edge material renders the heat shield block particularly unsusceptible to the formation and growth of cracks in the core area on the hot side. The invention also relates to a combustion chamber provided with heat shield blocks of the aforementioned type, and to a gas turbine provided with a combustion chamber comprising such a heat shield block.

Heat shield block for lining a combustion chamber wall, combustion chamber and gas turbine

A turbine blade or vane for use in a gas turbine is to have as long a service life as possible at high strength. To this end, the turbine blade or vane, according to the invention, has a basic body which is formed from a strengthened cast ceramic material and in which a number of reinforcing elements are placed.

Turbine blade for use in a gas turbine

A mold for producing a ceramic heat shield element having a mold shell is provided. The mold shell comprises a plurality of mold surfaces and a casting aperture for pouring in a ceramic material. The mold shell is embodied as a single-piece mold shell during casting, and the casting aperture is embodied as an aperture in one of the mold surfaces. Separating or retaining elements enable graded or reinforced heat shield elements to be produced.

Growing community of inventors

Bonn, Germany

Holger Grote