Methods and apparatus for reducing heat load in combustor...

Details Methods and apparatus for reducing heat load in combustor... Methods and apparatus for reducing heat load in combustor...

F - Mech Eng,Light,Heat,Weapons

23

R

F23R 3/42 (2006.01) F23R 3/08 (2006.01)

Patent

CA 2337311

A combustor liner (40) has a stepped combustor liner surface (70) defining a combustion zone (36) and an overhang portion (74) forming an air cooling slot (78). A layer (90) of thermal barrier material is applied to the combustor liner such that at least one portion (96) of the combustor liner receives a layer of thermal barrier material with a thickness (T,) greater than 0.01 inches. Thus, the combustor liner absorbs less heat, and the combustor (30) may operate at higher temperatures. As a result, low cycle fatigue and thermal creep are reduced within the combustor and the life cycle for the combustor is extended.

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