| CPC F23R 3/002 (2013.01) [F23R 3/06 (2013.01); F23R 3/16 (2013.01); F23R 2900/00015 (2013.01); F23R 2900/00018 (2013.01)] | 4 Claims |

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1. A combustor comprising a joined body,
the joined body comprising:
a wall body having a through-hole formed in a thickness direction; and
a component fixed to one surface of the wall body to block the through-hole,
wherein a welding filler material welded to fix the component to the one surface is accommodated in the through-hole,
wherein the wall body is a tubular body having a tubular shape, and the one surface is an inner peripheral surface of the tubular body,
wherein the tubular body includes:
an inner wall portion including the inner peripheral surface of the tubular body; and
an outer wall portion including an outer peripheral surface of the tubular body,
wherein the inner wall portion and the outer wall portion are provided at an interval in a thickness direction of the tubular body so that a flow path is formed therebetween,
wherein the through-hole includes;
a first hole portion formed to pass through the inner wall portion in the thickness direction;
a second hole portion formed to pass through the outer wall portion in the thickness direction; and
an intermediate hole portion forming a part of the flow path between the first hole portion and the second hole portion,
wherein the welding filler material is accommodated in the first hole portion, and
a lid portion is fixed to the outer peripheral surface of the tubular body to block the through-hole.
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