Alstom Technology Limited

Markus Stemann

Kenneth W Cornett

Jonas Hurter

Alexander Zagorskiy

Ian William Boston

Sergey Vladimirovich Trifonov

Peter Graham Amos

Dominick Gregory More

Kennet W Cornett

Nicolas Johnson Campino

A seal () includes a first component () and second component (), the first component including a first material having a high thermal and oxidation and wear resistance, and the second component () including a second material that is different from the first material and has a high spring load maintenance. The seal () is applied to a combustion chamber for a gas turbine, where the first component () extends between the casing wall of the combustion chamber and adjacent liner segments (). The spring load of the second component () provides a seal also in the case of vibrations in a combustion chamber. The lifetime of the seal () is increased due to the individual materials, which are optimally chosen for the functions of high thermal and wear resistance and spring load maintenance respectively. The seal is further applied to the sealing between adjacent stationary blade platforms in gas turbines.

High temperature seal and methods of use

A sealing element for sealing a component gap with respect to a flow, in particular for use in a fluid-flow machine, specifically in a turbomachine is provided. In addition a fluid-flow machine is provided including such a sealing element for sealing a component gap. The sealing element includes a hollow profile enclosing a cavity. Arranged in the hollow profile are a first opening and a second opening, which are spaced apart from each other in the longitudinal direction of the hollow profile. The first opening is formed as an inlet opening for a cooling fluid into the cavity of the hollow profile, the second opening is formed as an outlet opening for the cooling fluid from the cavity of the hollow profile. With the sealing element arranged in a fluid-flow machine, the sealing element can consequently be internally cooled by means of the cooling fluid. Furthermore, the sealing element uses the pressure gradient occurring in the flow in the direction of flow to form a stable cooling fluid flow.

Sealing element for use in a fluid-flow machine

Growing community of inventors

Wettingen, Switzerland

Markus Stemann