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.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A mailbox, comprising a housing having a plurality of walls top wall, two side walls, a rear wall, and a bottom wall defining an interior of the housing for receiving mail within the interior of said housing; a light source arranged within the interior of said housing so as to emit light into the interior of said housing, at least one of said top wall and said two side walls being a transparent wall through which the light emitted by said light source into the interior of said housing passes; and a post for supporting said housing, said post being hollow and having an interior into which light emitted by said light source into the interior of said housing passes, wherein said bottom wall is a transparent wall, while said post has a top opening adjoining said transparent bottom wall, so that light emitted by said light source into the interior of said housing passes through said transparent bottom wall and said top opening of said post into the interior of said post; said post having at east one transparent wall through which the light in the interior of said post passes.
2. A mailbox as defined in claim 1, wherein said so that the light emitted by said light source into the interior of said housing passes through said two transparent side walls.
3. A mailbox as defined in claim 1, wherein said top wall and said two said walls are each transparent walls transparent walls include two side walls, a top wall, and a bottom wall of said housing.
4. A mailbox as defined In claim 1; and further comprising a door which is openable and closable for introduction of the mail into the interior of said housing and for removal of the mail from the interior of said housing, said door being transparent so that the light emitted by said light source into the interior of said housing passes through said door.
5. A mailbox as defined in claim 1; and further comprising an additional element which is attachable to said housing and illuminatable by the light which passes through said at least one transparent of said housing.
6. A mailbox as defined in claim 1, wherein said at least one transparent wall of said housing is removable from said housing and replaceable by another transparent wall.
7. A mailbox as defined in claim 1, wherein said light source is a solar power light source and has at least one solar panel attached to an outer side of said housing.
8. A mailbox as defined in claim 7, wherein said at least one solar panel has two panel elements arranged on said top wall of said housing, said at least one transparent wall of said housing being formed at a portion of said top wall between said panel elements.