Patent ID: 7036320
Filing Date: 2006-05-02
Classification: F01D,F02C,F05D,Y02T

Abstract:
1. A turbomachine having an axis comprising, from upstream to downstream, a high pressure compressor whose rotor presents a downstream cone, a diffuser extending downstream beside the axis by an inner casing disposed radially outside said downstream compressor cone, a combustion chamber disposed radially outside said inner diffuser casing, and a high pressure turbine whose rotor is connected to the downstream compressor cone by a connection drum, the inner diffuser casing and the downstream compressor cone defining between them an annular cavity that is situated downstream from a discharge labyrinth and in which cooling air flows downstream, wherein a stator shroud is installed radially internally from the inner diffuser casing downstream from the discharge labyrinth to define with said diffuser casing a closed thermally insulating chamber.