Patent ID: 8776946

Claim:
A gas-turbine exhaust cone comprising: an outer wall, which is provided with a plurality of through passages, a honeycomb-structured layer arranged on an inside of the outer wall and extending along the inside of the outer wall, an inner wall extending substantially parallel to the outer wall and connected to the honeycomb-structured layer, and a plurality of annular chambers adjoining the inner wall and centered relative to a central axis of the exhaust cone, wherein the inner wall includes a plurality of second through passages connecting the honeycomb-structured layer to the plurality of annular chambers; wherein the gas-turbine exhaust cone includes a front part which is at a front in a flow direction, an adjoining rear part, and a first portion of the plurality of annular chambers is arranged in the front part; wherein the first portion of the plurality of annular chambers arranged in the front part are bounded by frustoconical shaped partition walls extending inwardly from the inner wall at an oblique angle to a central axis of the gas-turbine exhaust cone, the frustoconical shaped partition walls arranged concentrically on the central axis and radially overlapping each other.