Combustion chamber shingle arrangement of a gas turbine

Patent metadata

Field	Value
Publication number	US-10837646-B2
Application number	US-201815905076-A
Country	US
Kind code	B2
Filing date	Feb 26, 2018
Priority date	Mar 1, 2017
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

A combustion chamber shingle arrangement of a gas turbine, including a combustion chamber shingle, at least one threaded bolt configured for attaching the combustion chamber shingle, and a base body connecting the threaded bolt to the combustion chamber shingle, wherein the base body comprises a platform and a connection area that connects the platform to the combustion chamber shingle, wherein the threaded bolt is arranged at the platform, and wherein a hollow space is embodied between the platform and the combustion chamber shingle.

First claim

The invention claimed is:

1. A combustion chamber shingle arrangement of a gas turbine, comprising:
a combustion chamber shingle,
a threaded bolt, suitable for attaching the combustion chamber shingle, and
a base body connecting the threaded bolt to the combustion chamber shingle,
wherein the base body comprises a platform and a connection area that connects the platform to the combustion chamber shingle,
wherein the threaded bolt is fixedly connected to the platform, with the platform completely surrounding the threaded bolt,
wherein a hollow space is positioned between the platform and the combustion chamber shingle,
a combustion chamber wall to which the threaded bolt is connected,
wherein the platform includes a mounting surface facing the combustion chamber wall, the mounting surface including a portion directly engaging the combustion chamber wall,
wherein the mounting surface includes an indentation directed away from the combustion chamber wall and positioned between the threaded bolt and an outer periphery of the mounting surface, the indentation extending around the threaded bolt, the mounting surface being spaced away from the combustion chamber wall at the indentation.

2. The combustion chamber shingle arrangement according to claim 1 , and further comprising a plurality of effusion cooling holes, wherein at least one of the plurality of effusion cooling holes is arranged in an area of the combustion chamber shingle below the base body, wherein the hollow space is connected to an environment of the combustion chamber shingle by at least one passage hole.

3. The combustion chamber shingle arrangement according to claim 2 , wherein a sum of all cross-sectional areas of the at least one passage hole is larger than or equal to a sum of all cross-sectional areas of the plurality of effusion cooling holes in the area of the combustion chamber shingle below the base body.

4. The combustion chamber shingle arrangement according to claim 1 , wherein the combustion chamber shingle, the base body and the threaded bolt are configured in one piece from a same material.

5. The combustion chamber shingle arrangement according to claim 4 , wherein the combustion chamber shingle arrangement is a structural component that has been manufactured in an additive manner.

6. The combustion chamber shingle arrangement according to claim 1 , wherein, starting from a backside of the combustion chamber shingle, the combustion chamber shingle has a shingle edge that has a first height which is larger than a maximum height of the base body from the backside of the combustion chamber shingle, or wherein, starting from the backside of the combustion chamber shingle, the shingle edge has a same height as the base body.

7. The combustion chamber shingle arrangement according to claim 1 , wherein the threaded bolt has a passage hole that extends to the hollow space.

8. The combustion chamber shingle arrangement according to claim 1 , wherein the hollow space is connected to an environment from multiple sides.

9. The combustion chamber shingle arrangement according to claim 1 , wherein a total surface length of the platform of the base body is at least twice a diameter of the threaded bolt.

10. The combustion chamber shingle arrangement according to claim 1 , and further comprising effusion cooling holes that are at least partially embodied in the connection area of the base body.

Assignees

• Rolls Royce Deutschland Ltd & Co Kg

Inventors

• Clemen Carsten
• Ebel Michael
• Heinze Kay
• Penz Stefan

Classifications

• F23R3/002 Primary

  Wall structures (F23R3/02 and F23R3/007 take precedence) · CPC title

• F23R2900/03041

  Effusion cooled combustion chamber walls or domes · CPC title

• Y02T50/60

  Efficient propulsion technologies, e.g. for aircraft · CPC title

• F23R3/10

  for primary air (F23R3/06, F23R3/045 take precedence) · CPC title

• F23R3/60 Primary

  Support structures; Attaching or mounting means · CPC title