Venturi cooling system

F - Mech Eng,Light,Heat,Weapons – 23 – R

Patent

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Details

F23R 3/04 (2006.01) F23R 3/00 (2006.01)

Patent

CA 2661248

A combustor for a gas turbine is provided having a nozzle assembly located at one end and a combustion chamber defining a second end of the combustor. A venturi is positioned within the combustor, between the nozzle and the combustion chamber. The venturi defines a passageway therein having a first side facing the nozzle and a second side facing the combustion chamber. Compressed air is directed into an inlet in fluid communication with the first and second sides of the venturi passageway. The venturi passageway directs the compressed air from the inlet in opposite directions within the first and second sides of the passageway for cooling the venturi.

Une chambre de combustion d'une turbine à gaz est munie d'une buse à une extrémité et d'un compartiment de combustion définissant une deuxième extrémité de la chambre de combustion. Un venturi est monté dans la chambre de combustion, entre la buse et le compartiment de combustion. Le venturi définit un passage dont un côté fait face à la buse et le deuxième côté fait face au compartiment de combustion. De l'air comprimé est dirigé dans un orifice d'entrée en communication libre avec le premier et le deuxième côtés du passage du venturi. Le passage du venturi dirige l'air comprimé de l'orifice d'entrée dans des directions opposées à l'intérieur du premier et du deuxième côtés du passage afin de refroidir le venturi.

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