Cooling a quench aperture body of a combustor wall

Patent metadata

Field	Value
Publication number	US-2016290643-A1
Application number	US-201415035356-A
Country	US
Kind code	A1
Filing date	Dec 4, 2014
Priority date	Dec 5, 2013
Publication date	Oct 6, 2016
Grant date	—

Abstract

An assembly is provided for a turbine engine. A combustor wall of the turbine engine assembly includes a shell, a heat shield and an annular body engaged with the shell and the heat shield. The annular body extends through the combustor wall. The annular body at least partially defines a quench aperture along a centerline through the combustor wall. The annular body also at least partially defines a cooling aperture in fluid communication with the quench aperture. At least a portion of the cooling aperture extends radially outward from the quench aperture relative to the centerline.

First claim

What is claimed is:

1 . An assembly for a turbine engine, the assembly comprising:
a combustor wall including a shell, a heat shield and an annular body engaged with the shell and the heat shield; the annular body extending through the combustor wall and at least partially defining a quench aperture along a centerline through the combustor wall, and a cooling aperture in fluid communication with the quench aperture; wherein at least a portion of the cooling aperture extends radially outward from the quench aperture relative to the centerline.

2 . The assembly of claim 1 , wherein the cooling aperture is one of a plurality of cooling apertures that are defined by and extend through the body.

3 . The assembly of claim 1 , wherein
the annular body extends vertically to an exterior surface and laterally to an inner surface that at least partially defines the quench aperture; and the cooling aperture extends through the body between the exterior surface and the inner surface.

4 . The assembly of claim 3 , wherein a portion of the cooling aperture at the inner surface extends substantially radially relative to a centerline of the quench aperture.

5 . The assembly of claim 3 , wherein a portion of the cooling aperture at the inner surface extends substantially tangentially relatively to the inner surface.

6 . The assembly of claim 3 , wherein a portion of the cooling aperture at the inner surface extends acutely relative to the inner surface.

7 . The assembly of claim 3 , wherein
the body defines the cooling aperture with an inlet portion and an outlet portion; the inlet portion extends vertically from the exterior surface; and the outlet portion extends laterally to the inner surface.

8 . The assembly of claim 7 , wherein the body further defines the cooling aperture with an intermediate portion that extends vertically and laterally between the inlet portion and the outlet portion.

9 . The assembly of claim 7 , wherein
the body includes an annular first segment attached to an annular second segment; the first segment at least partially defines the inlet portion and the exterior surface; and the second segment at least partially defines the outlet portion and the inner surface.

10 . The assembly of claim 3 , wherein the exterior surface is funnel-shaped and defines a portion of the quench aperture.

11 . The assembly of claim 3 , wherein
the body includes a shelf surface; and the inner surface and the shelf surface define a peripheral inner channel in the body.

12 . The assembly of claim 1 , wherein the body defines a peripheral outer channel in which the shell is seated vertically against the body.

13 . The assembly of claim 1 , wherein
the body extends vertically through a cooling cavity defined vertically between the shell and the heat shield; and the cooling cavity fluidly couples one or more cooling apertures defined in the shell with one or more cooling apertures defined in the heat shield.

14 . The assembly of claim 1 , wherein the heat shield includes a plurality of panels that are attached to the shell, and the body is connected to one of the panels.

15 . A combustor wall with a quench aperture fluidly coupling a plenum and a combustion chamber of a turbine engine, the combustor wall comprising:
a shell; a heat shield attached to the shell; and an annular body mounted to the shell and the heat shield, the annular body defining the quench aperture and a cooling aperture configured to direct air from the plenum into the quench aperture.

16 . The combustor wall of claim 15 , wherein
the body extends vertically to an exterior surface and laterally to an inner surface that at least partially defines the quench aperture; and the cooling aperture extends through the body between the exterior surface and the inner surface.

17 . The combustor wall of claim 15 , wherein
the body includes an annular first segment attached to an annular second segment; the first segment defines a vertically extending portion of the cooling aperture; and the second segment defines a laterally extending portion of the cooling aperture.

18 . A grommet for a combustor wall, comprising:
an annular body having an inner surface which at least partially defines a quench aperture through the combustor wall along a centerline; wherein the annular body defines a plurality of cooling apertures distributed at least partially around the centerline.

19 . The grommet of claim 18 , wherein
the annular body extends vertically between interior and exterior surfaces and laterally between the inner surface and an outer surface; the body defines a first of the cooling apertures with an inlet portion and an outlet portion; the inlet portion extends vertically from the exterior surface; and the outlet portion extends laterally to the inner surface.

20 . The grommet of claim 19 , wherein
the body includes an annular first segment attached to an annular second segment; the first segment at least partially defines the inlet portion and the exterior surface; and the second segment at least partially defines the outlet portion, the inner surface and the interior surface.

Assignees

• United Technologies Corp

Inventors

• Cunha Frank J
• Kostka Jr Stanislav

Classifications

• F02C7/12

  Cooling of plants (of component parts, see the relevant subclasses, e.g. F01D; cooling of engines in general F01P) · CPC title

• F23R3/002 Primary

  Wall structures (F23R3/02 and F23R3/007 take precedence) · CPC title

• F23R2900/03044

  Impingement cooled combustion chamber walls or subassemblies · CPC title

• F02C7/18

  the medium being gaseous, e.g. air {(F02C7/125 takes precedence)} · CPC title

• F23R3/04

  Air inlet arrangements · CPC title