US 12,410,717 B2
Gas turbine blade with cooling flow paths and gas turbine including the same
Ki Don Lee, Gimhae (KR)
Assigned to DOOSAN ENERBILITY CO., LTD., Changwon (KR)
Filed by DOOSAN ENERBILITY CO., LTD., Changwon (KR)
Filed on Dec. 12, 2023, as Appl. No. 18/536,415.
Claims priority of application No. 10-2023-0034952 (KR), filed on Mar. 17, 2023.
Prior Publication US 2024/0309766 A1, Sep. 19, 2024
Int. Cl. F01D 5/18 (2006.01); F01D 9/04 (2006.01); F01D 25/12 (2006.01)
CPC F01D 5/186 (2013.01) [F01D 9/041 (2013.01); F01D 25/12 (2013.01); F05D 2240/35 (2013.01); F05D 2260/201 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A blade for a gas turbine, the blade comprising:
a blade body portion having a leading edge and a trailing edge respectively disposed at an upstream side and a downstream side based on a flow direction of a working fluid;
a cooling airflow path disposed in the blade body portion and configured to provide a flow path for cooling air;
inflow paths configured to communicate with the cooling airflow path;
outflow paths through which the cooling air is injected toward the trailing edge; and
a communication chamber, located between the inflow paths and the outflow paths, configured to allow communication between the inflow paths and the outflow paths,
wherein the inflow paths and the outflow paths are positioned offset in a radial direction of the blade body portion,
wherein, when a diameter of each of the inflow paths is D, the axial width of the communication chamber W is defined as following:

OG Complex Work Unit Math