Turbine blade
AssigneeSiemens Aktiengesellschaft
InventorsAlexander R. Beeck, Stefan Hoffmann
Life of this patent
Estimating the term…
Abstract
The invention relates to a turbine blade comprising a profiled vane around which working gas flows. The working gas cross-flows a front edge of the vane and flows away on a rear edge of the vane. The vane has a first and a second channel system for guiding two media separated from the turbine blade. Combustion taking place inside is reduced in a safe manner to maintain the service life of the turbine blade and to prevent damage in the gas turbine, such that a first outlet connected to the first channel system is arranged in the region of the rear edge for blowing out the first media into the working gas and a second outlet connected to the second channel system is arranged in the region of the rear edge for blowing out the second medium.
Claims17
A turbine blade, comprising:
- a profiled blade airfoil that is exposed to a circumflow of an operating gas, the blade airfoil comprising:
- a leading edge that is exposed to an inflow of the operating gas, and
- a trailing edge on which the operating gas flows out, the trailing edge extending along a blade airfoil principal axis from a root region of the blade airfoil to a tip region of the blade airfoil opposite to the root region;
- a first discharge opening arranged in a region of the trailing edge for blowing out a first medium into the operating gas;
- a first passage system leading to the first discharge opening for guiding the first medium;
- a second discharge opening arranged in the region of the trailing edge at least partially with a same height as the first discharge opening along the blade airfoil principal axis for blowing out a second medium;
- and
- a second passage system connected to the second discharge opening for guiding the second medium that is fed to the turbine blade separately from the first medium,
- wherein the first discharge opening and the second discharge opening forms an overlapping pair of openings along the blade airfoil principal axis.
A gas turbine with a turbine blade, comprising:
- a profiled blade airfoil that is exposed to a circumflow of an operating gas, the blade airfoil comprising:
- a leading edge that is exposed to an inflow of the operating gas, and
- a trailing edge on which the operating gas flows out, the trailing edge extending along a blade airfoil principal axis from a root region of the blade airfoil to a tip region of the blade airfoil opposite to the root region;
- a first discharge opening arranged in a region of the trailing edge for blowing out a first medium into the operating gas;
- a first passage system leading to the first discharge opening for guiding the first medium;
- a second discharge opening arranged in the region of the trailing edge at least partially with a same height as the first discharge opening along the blade airfoil principal axis for blowing out a second medium;
- and
- a second passage system connected to the second discharge opening for guiding the second medium that is fed to the turbine blade separately from the first medium,
- wherein the first discharge opening and the second discharge opening forms an overlapping pair of openings along the blade airfoil principal axis.
Dependencies are inferred from the claim text.