Patent ID: 9719372
Date: 2017-08-01
CPC Classifications: F01D,F05D

Claim:
1. A gas turbomachine comprising: a casing assembly that includes at least one arcuate casing component, the casing assembly surrounding a portion of the gas turbomachine, wherein the casing assembly includes an outer casing portion and an inner arcuate casing portion; and an open-loop counter-flow cooling system contained within the arcuate casing component, the counter-flow cooling system being configured and disposed to guide cooling fluid through the arcuate casing component in a first axial direction and return cooling fluid through the arcuate casing component in a second axial direction that is opposite the first axial direction, the cooling fluid being discharged into a hot gas path of the gas turbomachine, the counter-flow cooling system being arranged within the inner arcuate casing portion of the casing assembly, wherein the inner arcuate casing portion includes a plurality of shroud support elements, the counter-flow cooling system extending through at least two of the plurality of shroud support elements, wherein the at least two of the plurality of shroud support elements are located at distinct axial positions.