Sector staging combustor

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

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Details

F23R 3/28 (2006.01) F23R 3/06 (2006.01) F23R 3/34 (2006.01)

Patent

CA 2459187

A combustor (22) includes outer and inner liners (40,42) joined together by a dome (44) to define a combustor chamber (46). A row of air swirlers (48) is mounted in the dome and includes corresponding main fuel injectors (50) for producing corresponding fuel and air mixtures. Pilot fuel injectors (52) fewer in number than the main injectors (50) are mounted in the dome between corresponding ones of the swirlers (48). Staged fuel injection from the pilot and main injectors is used for starting the combustor during operation.

La présente concerne une chambre de combustion (22) qui comprend des chemises externes et internes (40,42) et réunies par un dôme (44) qui recouvre la chambre de combustion (46). Une rangée de coupelles de turbulence (48) est aménagée dans le dôme et elle comprend les principaux injecteurs correspondants (50) responsables des bons mélanges oxygène-carburant. Les injecteurs pilotes (52) sont moins nombreux que les injecteurs principaux (50) et ils sont installés dans le dôme entre les injecteurs correspondants des coupelles de turbulence (48). L'injection de carburant étagée par les injecteurs pilotes et les injecteurs principaux intervient pour l'allumage de la chambre de combustion pendant le fonctionnement de l'unité.

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