摘要：
A combustor liner 200 includes nested annular interior 202a-c and nested annular exterior 204a-c combustor liner walls. The annular interior walls are radially adjacent to one another and circumferentially surround an exhaust duct aperture 208. The annular exterior walls are radially adjacent to one another and radially spaced apart from and circumferentially surround the plurality of annular interior walls. An end wall, 206 for an ignitor, is attached to a first annular interior wall at a first interior end and extends radially toward and is attached to a first annular exterior wall at a first exterior end. The annular interior walls and the plurality of annular exterior walls are assembled in a green state to form the assembled combustor liner, and the liner is densified, for example by sintering. Both the interior and exterior liner walls include extending flanges 214a, 214b, 216a, 216b, that define the assembled position of adjacent walls. Between the flanges, on both the interior wall set and the exterior wall set, compressible seals 218 can be used. The exterior liner walls may include dilution holes 212 and dilution chutes 210. The arrangement and method of manufacturing reduces the number of manufactured parts and simplifies the manufacturing and assembly process.
权利要求：
CLAIMS:
1. A method of manufacturing a nested combustor liner (200), the method comprising:
manufacturing a nested combustor liner (200) into a green state, the nested combustion liner (200) comprising:
a plurality of annular interior walls (202a, 202b, 202¢) radially adjacent to one another and circumferentially surrounding an exhaust duct aperture (208);
a plurality of annular exterior walls (204a, 204b, 204c) radially adjacent to one another and radially spaced apart from and circumferentially surrounding the plurality of annular interior walls (202a, 202b, 202c);
an ignitor wall (206) attached to a first annular interior wall (202a) at a first interior end, extending radially toward and attached to a first annular exterior wall (204a) at a first exterior end;
assembling the plurality of annular interior walls (202a, 202b, 202c¢) and the plurality of annular exterior walls (204a, 204b, 204c), forming an assembled combustor liner; and
densifying the assembled combustor liner.
2. The method of claim 1, wherein densifying the assembled combustor liner is done by sintering the assembled combustor liner.
3. The method of claim 1 or 2, wherein the first annular interior wall (202a) includes a first interior flange (214a) extending radially away from the exhaust duct aperture (208) and attached to a second interior end opposite the first interior end and the first exterior wall (204a) includes a first annular exterior flange (214b) extending radially away from the first interior wall (202a) and attached to a second exterior end opposite the first exterior end.
4. The method of claim 1, 2 or 3, wherein a second annular interior wall (202b) has a second interior flange (214b) extending radially inward toward the first annular interior wall (202a) and attached to an end adjacent to the ignitor wall (206) and a second annular exterior wall (204b) has a second exterior flange (216b) extending radially inward toward the first annular exterior wall (204a) and attached to an end adjacent the ignitor wall (206).
3. The method of claim 4, further comprising inserting a compressible seal (218) between the first annular interior wall (202a) and the second annular interior wall (202b) and inserting a compressible seal (218) between the first annular exterior wall (204a) and the second annular exterior wall (204b).
6. The method of claim 5, wherein the compressible seal (218) 1s a C seal.
7. The method of claim 5 or 6, wherein densifying the assembled combustor liner results in compression of the compressible seal (218) to resist movement of the plurality of annular interior walls (202a, 202b, 202c¢) relative to one another and movement of the plurality of annular exterior walls (204a, 204b, 204c) relative to one another.
8. The method of any preceding claim, further comprising axially extending the plurality of annular interior and exterior walls (202a, 202b, 202c, 204a, 204b, 204c) away from the first annular interior wall (202a) and the first annular exterior wall (204a), respectively.
9. The method of any preceding claim, wherein the nested combustor liner (200) includes nickel or a nickel based alloy.
10. The method of any preceding claim, wherein manufacturing the nested combustor liner (200) is performed using additive manufacturing techniques.
11. The method of claim 10, wherein using additive manufacturing techniques is binder jet printing.
12. The method of any preceding claim, further comprising manufacturing a plurality of the nested combustor liners (200) simultaneously in a single build cycle and in a single build chamber (302) of an additive manufacturing apparatus (300).
13. A combustor liner (200) comprising:
a plurality of extended annular interior walls (202a, 202b, 202¢) circumferentially surrounding an exhaust duct aperture (208), wherein each of the plurality of extended annular interior walls (202a, 202b, 202c) is radially adjacent to and axially extended from at least one other of the plurality of extended annular interior walls (202a, 202b, 202c) and a first annular interior wall (202a) includes a first interior flange (214a) extending radially away from the exhaust duct aperture (208) and wherein a second annular interior wall (202b) has a second interior flange (216a) extending radially inward toward the first annular interior wall (202a);
a plurality of extended annular exterior walls (204a, 204b, 204c) radially spaced apart from and circumferentially surrounding the plurality of annular interior walls (202a, 202b, 202c), wherein each of the plurality of extended annular exterior walls (204a, 204b, 204c) is radially adjacent to and axially extended from at least one other of the plurality of extended annular exterior walls (204a, 204b, 204c) and a first annular exterior wall (204a) includes a first exterior flange (214b) extending radially away from the first annular interior wall (202a) and wherein a second annular exterior wall (204b) has a second exterior flange (216b) extending radially inward toward the first annular exterior wall (204a);
an ignitor wall (206) attached to a first interior wall end of the first annular interior wall (202a) and attached to a first exterior wall end of the first annular exterior wall (204a);
a first compressible seal (218) compressed between the first annular interior wall (202a) and the second annular interior wall (202b) and between the first interior flange (214a) and the second interior flange (216a); and
a second compressible seal (218) compressed between the first annular exterior wall (204a) and the second annular exterior wall (204b) and between the first exterior flange (214b) and the second exterior flange (216b).
14. The combustor liner of claim 13, wherein the plurality of extended annular interior walls (202a, 202b, 202c), the plurality of extended annular exterior walls (204a, 204b, 204c), and the ignitor wall (206) include nickel or a nickel-based alloy.