Shielding wall for a fuel supply duct in a turbine engine

摘要

A burner assembly for a firing system for firing fluidic fuels is provided. The burner assembly has a burner hub, an air inlet channel and a fuel inlet channel, wherein the fuel inlet channel is at least partially designed in the burner hub. A screening wall is arranged in the fuel inlet channel. The screening wall is spaced apart from a wall of the fuel inlet channel so that an intermediate space is formed between the wall of the fuel inlet channel and the screening wall. A sleeve is equipped with at least one radial positioning means that ensures a clearance of the sleeve from the wall of the fuel inlet channel. The at least one radial positioning means of the sleeve is designed as a positioning projection arranged in a circular manner, protruding out radially.

主权项

1. A burner arrangement for a firing installation for firing fluidic fuels, comprising:
a burner hub; at least one air supply duct; at least one fuel supply pipe; at least one fuel supply duct which is configured at least partially in the burner hub; wherein the at least one fuel supply duct comprises a shielding wall, which is at a distance from a wall of the at least one fuel supply duct, so that an intermediate space that is not part of a flow path of a fuel flowing through the at least one fuel supply duct is formed between the wall of the at least one fuel supply duct and the shielding wall, wherein the shielding wall is formed by a sleeve introduced into the at least one fuel supply duct, wherein the sleeve comprises at least one radial positioning device, which ensures a gap between the sleeve and the wall of the at least one fuel supply duct, and wherein the at least one radial positioning device of the sleeve is a circumferential and radially outward projecting positioning projection, wherein the at least one radial positioning projection of the sleeve comprises an annular groove, wherein the annular groove is spaced apart from the intermediate space and axially aligned with a connection point between said at least one fuel supply pipe and said at least one fuel supply duct.