Tile attachment scheme for counter swirl doublet

A cartridge, comprising:

• a cartridge surface;
• a cartridge bevel bordering the cartridge surface;
• a cartridge perimeter bordering the cartridge bevel;
• at least one chute integral to the cartridge;
• and
• at least two studs integral to the cartridge;
• wherein the cartridge is attached on an inner surface of a single-walled combustion liner of an annular combustor of a gas turbine engine and spans across an associated feed hole in the single-walled combustion liner;
• wherein the inner surface of the single-walled combustion liner faces a combustion chamber of the annular combustor;
• wherein the cartridge perimeter contacts the inner surface of the single-walled combustion liner;
• and
• wherein the cartridge surface does not contact the inner surface of the single-walled combustion liner such that a gap is between the inner surface of the single-walled combustion liner and the cartridge surface.

A method of attaching a cartridge to a combustion liner of an annular combustor of a gas turbine engine, the method comprising:

• providing a cartridge, comprising:
• a cartridge surface;
• a cartridge perimeter bordering the cartridge surface;
• at least one chute integral to the cartridge;
• and
• at least two studs integral to the cartridge;
• contacting the cartridge perimeter with an inner surface of the combustion liner, wherein the inner surface faces a combustion chamber of the annular combustor, and wherein each of the at least two studs projects through an associated stud hole in the single-walled combustion liner;
• and
• fastening a nut on each of the at least two studs so as to retain the cartridge in the combustion liner;
• wherein the combustion liner is a single-walled combustion liner.