Combustor liner with dual function cooling airflow

Details Combustor liner with dual function cooling airflow Combustor liner with dual function cooling airflow

F - Mech Eng,Light,Heat,Weapons

02

C

60/119, 60/174

F02C 7/12 (2006.01) F23R 3/00 (2006.01) F23R 3/08 (2006.01)

Patent

CA 1208922

COMBUSTOR LINER WITH DUAL FUNCTION COOLING AIRFLOW ABSTRACT OF THE DISCLOSURE Compressed air from a region surrounding a combustor of a gas turbine engine is utilized to accomplish at least two functions. First, the compressed air flows through impingement cooling holes in a combustor outer liner to impingement cool combustor inner liner wall segments. This impingement air forms an impingement blanket between the outer and inner liners. Second, the impingement air forming the impingement blanket is directed through dilution holes to provide dilution air to the combustion process. Part of the impingement blanket air may also be utilized as film cooling air to film cool the inner liner.

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