CPC F23R 3/60 (2013.01) [F23M 5/04 (2013.01); F23R 3/002 (2013.01); F23R 3/50 (2013.01); F23R 2900/00014 (2013.01); F23R 2900/00017 (2013.01); F23R 2900/03044 (2013.01)] | 13 Claims |
2. A combustor for a gas turbine, the combustor comprising:
a dome;
a deflector connected to the dome to define a baffle cavity therebetween, the deflector having a deflector cold side adjacent to the baffle cavity and a deflector hot side adjacent to a combustion chamber; and
at least one dome-deflector connecting member connecting the dome and the deflector to each other,
wherein the at least one dome-deflector connecting member comprises at least one coupler connected to the dome at a first end of the coupler and connected to the deflector at a second end of the coupler, and
wherein the at least one coupler includes a hollow cylindrical middle section between the first end of the coupler and the second end of the coupler, the hollow cylindrical middle section being unthreaded and defining a hollow cavity within the at least one coupler, a helical serration formed through the hollow cylindrical middle section along a length of the hollow cylindrical middle section so as to define a heli-coil structure, and
wherein the hollow cavity is in fluid communication with the baffle cavity via the helical serration.
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13. A combustor for a gas turbine, the combustor comprising:
a dome;
a deflector connected to the dome to define a baffle cavity therebetween, the deflector having a deflector cold side adjacent to the baffle cavity and a deflector hot side adjacent to a combustion chamber;
at least one dome-deflector connecting member connecting the dome and the deflector to each other; and
a combustor liner including a combustor liner shell and a combustor liner panel connected to the combustor liner shell to define a baffle cavity therebetween, the combustor liner panel being connected to the combustor liner shell via at least one shell-to-panel connecting member at a joint, the at least one shell-to-panel connecting member forming a joint between the combustor liner shell and the combustor liner panel,
wherein the at least one shell-to-panel connecting member includes (a) a first ripple-shaped washer having a first washer center opening therethrough, and having a first washer radially outer flange, and (b) a second ripple-shaped washer having a stud extending from a center of the second ripple-shaped washer, and having a second washer radially outer flange, the second ripple-shaped washer being joined to the combustor liner panel, the stud extending through the first washer center opening, the second washer radially outer flange engaging with a hot side of the combustor liner shell, and the first washer radially outer flange engaging with a cold side of combustor liner shell, and
wherein the first ripple-shaped washer includes cooling openings therethrough for providing a cooling airflow to a cold side of the second ripple-shaped washer, and the second ripple-shaped washer includes cooling openings therethrough for providing an impingement cooling airflow to impinge against the cold side of the combustor liner panel.
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