Combustion liner having improved cooling and sealing

Details Combustion liner having improved cooling and sealing Combustion liner having improved cooling and sealing

2007-09-18

2007-09-18

Casaregola, L. J. (Department: 3746)

Power plants

Combustion products used as motive fluid

Having expansible connection

C060S752000

Reexamination Certificate

active

10857713

ABSTRACT:
A gas turbine combustion liner is disclosed having an alternate interface region between it and a transition duct where the cooling effectiveness along the aft end of the combustion liner is improved, resulting in extended component life, while utilizing a simpler combustion liner geometry. The region of the combustion liner proximate its second end comprises a plurality of spring seals that seal against a transition duct while admitting a cooling fluid to pass into a passage, formed between the combustion liner and spring seals, that feeds a plurality of cooling holes located in the combustion liner proximate the liner second end. Depending on the cooling requirements, the cooling holes can be angled both axially and circumferentially to maximize the cooling effectiveness.

REFERENCES:
patent: 5724816 (1998-03-01), Ritter et al.
patent: 5964091 (1999-10-01), Fukui et al.
patent: 6334310 (2002-01-01), Sutcu et al.
patent: 6427446 (2002-08-01), Kraft et al.
patent: 7082770 (2006-08-01), Martling et al.
patent: 8-285284 (1996-11-01), None

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