| 摘要 |
A hot gas segment arrangement (20), especially for a combustion chamber of a gas turbine, comprises at least one hot gas segment (22), which is removably mounted on a carrier (21), and is subjected at its outside to hot gas and impingement-cooled at its inside, whereby an impingement plate (23) with a plurality of distributed impingement holes (25) is arranged in a distance at the inside of said impingement plate (23), whereby a cooling air supply means (24) is provided for loading said impingement plate (23) with pressurized cooling air in order to generate through said impingement holes (25) jets of cooling air, which impinge on the inside of said hot gas segment (22). The cooling efficiency and lifetime are increased by said impingement plate (23) being part of a closed receptacle (24), which is supplied with said pressurized cooling air, and by said receptacle (24) with said impingement plate (23) being mounted on said carrier (21) independently of said hot gas segment (22). |
