US 12,188,375 B2
Structure for assembling turbine blade seals and gas turbine including the same
Joo Hyung Kang, Buk-gu (KR); Iurii Goroshchak, Gimhae-si (KR); and Oleksiy Korepin, Gimhae-si (KR)
Assigned to Doosan Enerbility Co., Ltd., Changwon-si (KR)
Filed by DOOSAN ENERBILITY CO., LTD, Changwon-si (KR)
Filed on Feb. 14, 2023, as Appl. No. 18/109,776.
Claims priority of application No. 10-2022-0019744 (KR), filed on Feb. 15, 2022.
Prior Publication US 2023/0258095 A1, Aug. 17, 2023
Int. Cl. F01D 5/30 (2006.01); F01D 5/18 (2006.01)
CPC F01D 5/3015 (2013.01) [F01D 5/18 (2013.01); F01D 5/30 (2013.01); F01D 5/3007 (2013.01); F05D 2220/323 (2013.01); F05D 2230/60 (2013.01); F05D 2230/64 (2013.01); F05D 2240/24 (2013.01); F05D 2240/55 (2013.01); F05D 2260/20 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A structure for assembling turbine blade seals, comprising:
a turbine blade comprising an airfoil, a platform, and a root;
a turbine rotor disk to which the root of the turbine blade is mounted;
a seal plate mounted between the platform and one side of the turbine rotor disk to seal a cooling channel defined within the root and the platform; and
an insertion pin inserted axially through the turbine rotor disk to fix the seal plate to the turbine rotor disk by supporting the seal plate, wherein:
the turbine rotor disk has a mounting groove into which a radially inner end of the seal plate is inserted,
the seal plate has a jaw portion radially supported by a stepped portion of the mounting groove, the seal plate further comprising a body plate having a first side and an opposing second side,
the turbine rotor disk comprises a mounting rib extending radially from one axial side thereof to form the mounting groove between the turbine rotor disk and the mounting rib, and
a through-hole formed axially through the mounting rib to permit insertion of the insertion pin;
the turbine rotor disk comprises a first vertical surface that abuts the first side of the seal plate;
the mounting rib comprises a second vertical surface parallel to the first vertical surface that abuts the second side of the seal plate, and
the seal plate is positioned entirely to one side of the second vertical surface.