Seal assembly to seal corner leaks in gas turbine

A gas turbine comprising:

• a first arcuate component adjacent to a second arcuate component, each arcuate component including one or more slots located in an end face, each of the one or more slots having a plurality of substantially axial surfaces and one or more radially facing surfaces extending from opposite ends of the substantially axial surfaces, defining a plurality of intersecting slot segments;
• and
• a seal assembly disposed in the slot of the first arcuate component and the slot of the second arcuate component, the seal assembly comprising:
• an intersegment seal including a plurality of seal segments, the plurality of seal segments defining one or more corner regions spanning between the axial surface and each of the radially facing surfaces of the one or more slots, the intersegment seal disposed in a slot defining a high-pressure slot side and a low-pressure slot side, wherein one or more of the plurality of seal segments including at least one extended portion to at least one of:
• seal the one or more corner regions on a low-pressure slot side;
• and
• form a recess in one or more of the plurality of seal segments.

A method of assembling a seal in a turbine, the method comprising:

• forming a seal assembly, the forming including:
• providing an intersegment seal including a plurality of seal segments, and including at least one extended portion to at least one of:
• seal one or more corer regions on a low-pressure slot side;
• and
• form a recess in one or more of the plurality of seal segments,
• applying the intersegment seal in the turbine, the turbine having:
• a first arcuate component adjacent to a second arcuate component, each arcuate component including one or more slots located in an end face, each of the one or more slots having a plurality of axial surfaces and radially facing surfaces extending from opposite ends of the axial surfaces, defining a plurality of intersecting slot segments;
• the applying including inserting the seal assembly in a slot of the one or more slots such that the intersegment seal is disposed in the slot on each arcuate component and in contact with the axial surface of the slots and extending over the radially facing surfaces of the slots.