Combustor cap with cooling passage

Patent metadata

Field	Value
Publication number	US-9650958-B2
Application number	US-201414334219-A
Country	US
Kind code	B2
Filing date	Jul 17, 2014
Priority date	Jul 17, 2014
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

A combustor cap for a combustor chamber of a combustion system is provided. The combustor cap includes a plate member including: a plurality of openings for accommodating a plurality of fuel nozzles of the combustion system; a cooling passage extending through a plane of the plate member; an entrance opening to the cooling passage; and an exit opening from the cooling passage to a side of the plate member opposite to the combustion chamber.

First claim

What is claimed is:

1. A combustor cap for a combustor chamber of a combustion system, the combustor cap comprising:
a plate member including:
a plurality of openings for accommodating a plurality of fuel nozzles of the combustion system;
a cooling passage extending through a plane of the plate member;
an entrance opening to the cooling passage; and
an exit opening from the cooling passage to a side of the plate member opposite to the combustion chamber.

2. The combustor cap of claim 1 , wherein the entrance opening is configured to be fluidly communicative with a feed passage carrying a cooling fluid from a compressor discharge of a compressor of the combustion system.

3. The combustor cap of claim 2 , wherein the exit opening is configured to be fluidly communicative with an exit passage carrying the cooling fluid to a chamber between a combustion casing and a nozzle shroud of the combustion system.

4. The combustor cap of claim 2 , wherein the exit opening is configured to be fluidly communicative with an exit passage carrying the cooling fluid to a burner tube of at least one of the plurality of nozzles of the combustion system.

5. The combustor cap of claim 1 , wherein the entrance opening is configured to be fluidly communicative with a feed passage carrying a cooling fluid from a chamber between a flow sleeve and a combustor liner of the combustion system.

6. The combustor cap of claim 5 , wherein the exit opening is configured to be fluidly communicative with a passage carrying the cooling fluid to a burner tube of at least one of the plurality of nozzles of the combustion system.

7. The combustor cap of claim 1 , wherein each of the entrance opening and the exit opening is positioned in a face of the plate member within a nozzle shroud of the combustion system.

8. The combustor cap of claim 1 , wherein the cooling passage extends through the plane of the plate member so as to pass between the plurality of openings.

9. The combustor cap of claim 1 , wherein the cooling passage includes at least a portion that extends through the plane of the plate member in a substantially serpentine manner.

10. The combustor cap of claim 1 , wherein the cooling passage includes a plurality of cooling passages, each cooling passage including an entrance opening and an exit opening to the respective cooling passage.

11. The combustor cap of claim 1 , further comprising a thermal barrier coating on the plate member.

12. A combustion system comprising:
a combustion casing;
a flow sleeve within the casing and surrounding a combustor liner defining a combustion chamber;
a plurality of fuel nozzles for providing a fuel-air mixture to the combustor liner; and
a combustor cap for the combustor liner, the combustor cap including a plate member, the plate member including:
a plurality of openings for accommodating the plurality of fuel nozzles,
a cooling passage extending through a plane of the plate member,
an entrance opening to the cooling passage, and
an exit opening from the cooling passage to a side of the plate member opposite to the combustion chamber.

13. The combustion system of claim 12 , wherein the entrance opening is fluidly communicative with a feed passage carrying a cooling fluid from a compressor discharge of a compressor of the combustion system.

14. The combustion system of claim 13 , wherein the exit opening is fluidly communicative with an exit passage carrying the cooling fluid to a chamber between a combustion casing and a nozzle shroud of the combustion system.

15. The combustion system of claim 13 , wherein the exit opening is fluidly communicative with an exit passage carrying the cooling fluid to a burner tube of at least one of the plurality of nozzles of the combustion system.

16. The combustion system of claim 12 , wherein the entrance opening is fluidly communicative with a feed passage carrying a cooling fluid from a chamber between the flow sleeve and the combustor liner of the combustion system.

17. The combustion system of claim 16 , wherein the exit opening is fluidly communicative with an exit passage carrying the cooling fluid to a burner tube of at least one of the plurality of nozzles of the combustion system.

18. The combustion system of claim 12 , wherein each of the entrance opening and the exit opening is positioned in a face of the plate member within a nozzle shroud of the combustion system.

19. The combustion system of claim 12 , wherein the cooling passage extends through the plane of the plate member so as to pass between the plurality of openings.

20. The combustion system of claim 12 , wherein the cooling passage includes at least a portion that extends through the plane of the plate member in a substantially serpentine manner.

21. The combustor system of claim 12 , wherein the cooling passage includes a plurality of cooling passages, each cooling passage including an entrance opening and an exit opening to the respective cooling passage.

22. The combustion system of claim 12 , further comprising a thermal barrier coating on the plate member.

23. A non-transitory computer readable storage medium storing code representative of a combustor cap for a combustion system, the combustor cap physically generated upon execution of the code by a computerized additive manufacturing system, the code comprising:
code representing the combustor cap, the combustor cap including:
a plate member including:
a plurality of openings for accommodating a plurality of fuel nozzles of the combustion system;
a cooling passage extending through a plane of the plate member;
an entrance opening to the cooling passage; and
an exit opening from the cooling passage to a side of the plate member opposite to the combustion chamber.

24. The storage medium of claim 23 , wherein the cooling passage extends through the plane of the plate member so as to pass between the plurality of openings.

25. The storage medium of claim 23 , wherein the cooling passage includes at least a portion that extends through the plane of the plate member in a substantially serpentine manner.

26. The storage medium of claim 23 , wherein the cooling passage includes a plurality of cooling passages, each cooling passage including an entrance opening and an exit opening to the respective cooling passage.

Assignees

• Gen Electric

Inventors

• Dicintio Richard Martin
• Melton Patrick Benedict

Classifications

• F02C7/264

  Ignition · CPC title

• F02C7/16 Primary

  characterised by cooling medium · CPC title