Sector staging combustor

摘要

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.