SEAL STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a seal structure capable of avoiding damage to a heat-resistant coating part even if adjacent members contact each other.SOLUTION: A seal structure comprises: a first member 21 which is disposed to face a combustion gas flow passage Pg; a second member 41a which is disposed to face the combustion gas flow passage Pg; a third member 7 which is disposed outside of the combustion gas flow passage Pg and which is engaged with the first member 21 and the second member 41a; a heat-resistant coating part 130 which is formed on a combustion-gas-flow-passage-Pg side of at least one of a first end surface 101 and a second end surface 102; and a contact section 140 which is disposed on the first end surface 101 and the second end surface 102 outward of the heat-resistant coating part 130 with respect to the combustion gas flow passage Pg. The contact section 140 comes in contact with the first member 21 and the second member 41a either directly or indirectly via the third member 7 in a state where a clearance is formed between the heat-resistant coating part 130 and the surface facing the heat-resistant coating part 130 when the first member 21 and the second member 41a move relatively to each other in the direction of approaching each other.SELECTED DRAWING: Figure 3