F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 25/26 (2006.01) F02C 7/00 (2006.01) F04D 29/40 (2006.01) F23R 3/00 (2006.01)
Patent
CA 2582691
A gas turbine casing for enclosing a gas turbine component, such as a fan, a compressor, a combustion chamber or a turbine. The casing comprises a double wall structure (14) having a first inner tube (15) and a second outer tube (16), the first inner tube (15) and the second outer tube (16) extending around a geometric longitudinal axis (17), which is intended to basically coincide with a longitudinal geometric central axis of a gas turbine. The first inner tube (15) and the second outer tube (16) overlap one another when these are viewed in a radial direction, a gap (18) being formed between the outer boundary surface (19) of the first inner tube and the inner boundary surface (20) of the second outer tube. The double wall structure (14) furthermore has a plurality of stays (21) which take the form of plates, which are spaced at an interval from one another and extend radially between the first inner tube (15) and the second outer tube (16), and which stays (21) connect the first inner tube (15) and the second outer tube (16) to one another.
L'invention concerne un carter de turbine à gaz destiné à envelopper un composant de turbine à gaz, tel qu'un ventilateur, un compresseur, une chambre de combustion ou une turbine. Ce carter comprend une structure à double paroi (14) comportant un premier tube interne (15) et un second tube externe (16), le premier tube interne (15) et le second tube interne (16) s'étendant autour d'un axe longitudinal géométrique (17) qui doit coïncider à la base avec un axe central géométrique longitudinal d'une turbine à gaz. Le premier tube interne (15) et le second tube interne (16) se chevauchent lorsqu'on les regarde dans le sens radial. Un espace (18) est formé entre la surface limite extérieure (19) du premier tube interne et la surface limite interne (20) du second tube externe. La structure à double paroi (14) possède de plus plusieurs potelets (21) en forme de plaque, espacés les uns des autres et s'étendant radialement entre le premier tube interne (15) et le second tube externe (16) et reliant le premier tube interne (15) au second tube externe (16).
Dennison Associates
Volvo Aero Corporation
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