Gas turbine blade

F - Mech Eng,Light,Heat,Weapons – 01 – D

Patent

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Details

F01D 5/20 (2006.01) F01D 5/18 (2006.01) F01D 5/30 (2006.01)

Patent

CA 2231035

The present invention provides a gas turbine blade in which the tip end thereof is cooled effectively to decrease the metal temperature for the prevention of burning and the temperature gradient of blade metal is decreased to prevent the occurrence of a crack. In the gas turbine blade provided with a cooling passage therein, a protrusion is provided on the inside from the extension of blade profile on the outer surface of blade tip end.

La présente invention a trait à une aube de turbomachine dont l'extrémité de la pointe est refroidie de manière efficace afin d'abaisser la température du métal pour éviter qu'elle ne brûle, et dont le gradient de température du métal est abaissé pour éviter qu'il n'y ait formation d'une fissure. L'aube de turbomachine munie d'un passage de refroidissement comporte une saillie sur l'intérieur à partir du prolongement du profil de l'aube sur la surface extérieure de l'extrémité de la pointe de l'aube.

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