초록 ▼

A gas turbine combustor having a combustion chamber (10) with a steam-cooled peripheral wall (2) has an air hole (1) for injecting dilution air therethrough bored in the peripheral wall (2) on an upstream side of the combustion chamber (10). The air is thereby supplied through the air hole (1) into

A gas turbine combustor having a combustion chamber (10) with a steam-cooled peripheral wall (2) has an air hole (1) for injecting dilution air therethrough bored in the peripheral wall (2) on an upstream side of the combustion chamber (10). The air is thereby supplied through the air hole (1) into the vicinity of an inner surface of the peripheral wall (2) to form a film flow of air, and an increase of the fuel concentration there is suppressed. The dilution air is preferably supplied from a gas turbine compressor (6).

대표청구항 ▼

[ What is claimed is:] [1.] A gas turbine combustor comprising:a combustion chamber having a steam-cooled peripheral wall, said combustion chamber having a central portion, an upstream side and a downstream side;a pilot nozzle provided at said central portion of said combustion chamber and a plurali

[ What is claimed is:] [1.] A gas turbine combustor comprising:a combustion chamber having a steam-cooled peripheral wall, said combustion chamber having a central portion, an upstream side and a downstream side;a pilot nozzle provided at said central portion of said combustion chamber and a plurality of main nozzles provided around said pilot nozzle, wherein said pilot nozzle and said plurality of main nozzles are provided at said upstream side of said combustion chamber; andan air hole bored through said peripheral wall at said upstream side of said combustion chamber for injecting dilution air through said peripheral wall to the vicinity of an inner surface of said peripheral wall.