US 12,595,909 B2Granted

Article and method for manufacturing an expanded combustor liner

AssigneeRtx Corporation

InventorsLawrence A. Binek, Jesse R. Boyer

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Abstract

A method of manufacturing a nested combustor liner includes manufacturing a nested combustor liner into a green state including a plurality of annular interior walls radially adjacent to one another and circumferentially surrounding an exhaust duct aperture and a plurality of annular exterior walls radially adjacent to one another and radially spaced apart from and circumferentially surrounding the plurality of annular interior walls and an ignitor wall attached to a first annular interior wall at a first interior end, extending radially toward and attached to a first annular exterior wall at a first exterior end. The method includes assembling the plurality of annular interior walls and the plurality of annular exterior walls, forming an assembled combustor liner. The method includes densifying the assembled combustor liner.

Claims20

Dependent claims

A combustor liner, comprising:

a plurality of extended annular interior walls circumferentially surrounding an exhaust duct aperture, wherein each of the plurality of extended annular interior walls is radially adjacent to and axially extended from at least one other of the plurality of extended annular interior walls and a first annular interior wall includes a first interior flange extending radially away from the exhaust duct aperture and wherein a second annular interior wall has a second interior flange extending radially inward toward the first annular interior wall;
a plurality of extended annular exterior walls radially spaced apart from and circumferentially surrounding the plurality of annular interior walls, wherein each of the plurality of extended annular exterior walls is radially adjacent to and axially extended from at least one other of the plurality of extended annular exterior walls and a first annular exterior wall includes a first exterior flange extending radially away from the first annular interior wall and wherein a second annular exterior wall has a second exterior flange extending radially inward toward the first annular exterior wall;
an ignitor wall attached to a first interior wall end of the first annular interior wall and attached to a first exterior wall end of the first annular exterior wall;
a first compressible seal compressed between the first annular interior wall and the second annular interior wall and between the first interior flange and the second interior flange;
and
a second compressible seal compressed between the first annular exterior wall and the second annular exterior wall and between the first exterior flange and the second exterior flange.

3 more elements

An assembly for a turbine engine, comprising:

a plurality of interior walls of a combustor liner arranged axially along an exhaust duct aperture, each of the plurality of interior walls circumscribing the exhaust duct aperture, the plurality of interior walls including a first interior wall and a second interior wall, the second interior wall radially adjacent and projecting axially out from the first interior wall, the first interior wall comprising a first interior flange projecting radially outward away from the exhaust duct aperture, the second interior wall comprising a second interior flange projecting radially inwards towards the exhaust duct aperture, and the first interior flange axially engaged with the second interior flange;
a plurality of exterior walls of the combustor liner arranged axially along the exhaust duct aperture, each of the plurality of exterior walls circumscribing the plurality of interior walls, the plurality of exterior walls including a first exterior wall and a second exterior wall, the second exterior wall radially adjacent and projecting axially out from the first exterior wall, the first exterior wall comprising a first exterior flange projecting radially outward away from the exhaust duct aperture, the second exterior wall comprising a second exterior flange projecting radially inwards towards the exhaust duct aperture, and the first exterior flange axially engaged with the second exterior flange;
an endwall attached to and extending radially between one of the plurality of interior walls and one of the plurality of exterior walls;
and
an interior seal element disposed axially between and contacting the first interior flange and the second interior flange.

2 more elements

An assembly for a turbine engine, comprising:

a plurality of interior walls of a combustor liner arranged axially along an exhaust duct aperture, each of the plurality of interior walls circumscribing the exhaust duct aperture, the plurality of interior walls including a first interior wall and a second interior wall, the second interior wall radially adjacent and projecting axially out from the first interior wall, the first interior wall comprising a first interior flange projecting radially outward away from the exhaust duct aperture, the second interior wall comprising a second interior flange projecting radially inwards towards the exhaust duct aperture, and the first interior flange axially engaged with the second interior flange;
a plurality of exterior walls of the combustor liner arranged axially along the exhaust duct aperture, each of the plurality of exterior walls circumscribing the plurality of interior walls, the plurality of exterior walls including a first exterior wall and a second exterior wall, the second exterior wall radially adjacent and projecting axially out from the first exterior wall, the first exterior wall comprising a first exterior flange projecting radially outward away from the exhaust duct aperture, the second exterior wall comprising a second exterior flange projecting radially inwards towards the exhaust duct aperture, and the first exterior flange axially engaged with the second exterior flange;
an endwall attached to and extending radially between one of the plurality of interior walls and one of the plurality of exterior walls;
and
an exterior seal element disposed axially between and contacting the first exterior flange and the second exterior flange.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/061,588Filed 24 Feb 2025 · division
Priority: 16 Jul 2020
Published: US 2025/0189128 A112 Jun 2025
Granted: 7 Apr 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

F23R 3/002
Continuous combustion chambers using liquid or gaseous fuel: wall structures
F23R 3/007
Continuous combustion chambers using liquid or gaseous fuel: constructed mainly of ceramic components
F23R 3/50
Characterised by the arrangement or form of the flame tubes or combustion chambers: combustion chambers comprising an annular flame tube within an…
F23R 2900/00
Special features of, or arrangements for continuous combustion chambers

Family

Application16/930,797Parent of this division · filed 16 Jul 2020
US 2025/0189128 A1Pre-grant publication · published 12 Jun 2025
US 12,234,986 B2Parent of this division
US 2022/0018541 A1Published application
US 12,595,909 B2This patent

From the US filing history. Foreign family members aren’t listed.