Low cost combustor burner collar

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

Patent

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Details

F23R 3/28 (2006.01) F23R 3/46 (2006.01) F23R 3/60 (2006.01)

Patent

CA 2449481

A head part of an annular combustor for a gas turbine engine according to the present invention includes an annular bulkhead at the upstream end of the combustor. The bulkhead includes a first annular section integrally, inwardly and radially extending from the outer annular wall of the combustor, and a second annular section integrally, outwardly and radially extending from the annular inner wall of the combustor. The first annular section has a plurality of apertures circumferentially space apart from one another to receive fuel burners therein, respectively. Each burner is radial-displaceably positioned in the aperture and sealed by a burner collar. The burner collar is clamped between the heat shield and the bulkhead wall.

L'invention concerne une partie tête d'une chambre de combustion annulaire d'un moteur à turbine à gaz, qui comprend une cloison à l'extrémité amont de la chambre de combustion. Ladite cloison comporte une première section annulaire s'étendant de manière solidaire et radiale vers l'intérieur à partir de la paroi annulaire externe de la chambre de combustion, et une seconde section annulaire s'étendant de manière solidaire et radiale vers l'extérieur à partir de la paroi interne annulaire de ladite chambre. La première section annulaire comporte plusieurs orifices à distance les uns des autres sur la circonférence pour recevoir des brûleurs de combustible respectivement. Chaque brûleur est placé coulissant de manière radiale dans l'orifice et étanchéifié par une bague de brûleur. Ladite bague est fixée entre l'écran thermique et la cloison.

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