Cooling a quench aperture body of a combustor wall
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.
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 vertically 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;
wherein the annular body includes an inner surface and a shelf surface vertically recessed within the combustor wall relative to an exterior surface of the heat shield, the exterior surface of the heat shield configured to form a portion of a peripheral boundary of a combustion chamber of the turbine engine;
wherein the annular body extends vertically to an exterior surface of the annular body and laterally to the inner surface that at least partially defines the quench aperture;
wherein the inner surface and the shelf surface define a peripheral inner channel in the annular body, the shelf surface facing toward the combustion chamber; and
wherein the exterior surface of the annular body is flush with an exterior surface of the shell, the exterior surface of the shell facing away from the combustion chamber.
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 annular body.
3. The assembly of claim 1 , wherein the cooling aperture extends through the annular body between the exterior surface of the annular body 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 the centerline.
5. The assembly of claim 3 , wherein a portion of the cooling aperture at the inner surface extends substantially tangentially relative 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 annular body defines the cooling aperture with an inlet portion and an outlet portion; the inlet portion extends vertically from the exterior surface of the annular body; and the outlet portion extends laterally to the inner surface.
8. The assembly of claim 7 , wherein the annular 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 annular 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 of the annular body; 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 of the annular body is funnel-shaped and defines a portion of the quench aperture.
11. The assembly of claim 1 , wherein the annular body defines a peripheral outer channel in which the shell is seated vertically against the annular body.
12. The assembly of claim 1 , wherein the annular 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.
13. The assembly of claim 1 , wherein the heat shield includes a plurality of panels that are attached to the shell, and the annular body is connected to one of the panels.
14. 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 and a cooling aperture, and the annular body including an inner surface that at least partially defines the quench aperture and a shelf surface;
the quench aperture extending along a centerline through the combustor wall from an exterior surface of the annular body to an exterior surface of the heat shield facing a combustion chamber in the turbine engine, the exterior surface of the annular body being flush with an exterior surface of the shell, the exterior surface of the shell facing away from the combustion chamber;
the cooling aperture in fluid communication with the quench aperture, and at least a portion of the cooling aperture extending radially outward from the quench aperture relative to the centerline;
the shelf surface vertically recessed within the combustor wall relative to the exterior surface of the heat shield; and
the inner surface and the shelf surface defining a peripheral inner channel in the annular body, the shelf surface facing toward the combustion chamber.
15. The assembly of claim 14 , wherein the exterior surface of the heat shield is configured to partially form a peripheral boundary of the combustion chamber.