US 11,713,684 B2
Coolable component for a streaming engine
Mats Annerfeldt, Finspong (SE); Mats Kinell, Finspang (SE); and Rickard Magnéli, Norrköping (SE)
Assigned to Siemens Energy Global GmbH & Co. KG, Bayern (DE)
Appl. No. 17/416,493
Filed by Siemens Energy Global GmbH & Co. KG, Bayern (DE)
PCT Filed Dec. 13, 2019, PCT No. PCT/EP2019/085032
§ 371(c)(1), (2) Date Jun. 20, 2021,
PCT Pub. No. WO2020/136020, PCT Pub. Date Jul. 2, 2020.
Claims priority of application No. 8248054 (EP), filed on Dec. 27, 2018.
Prior Publication US 2022/0049609 A1, Feb. 17, 2022
Int. Cl. F01D 5/18 (2006.01)
CPC F01D 5/187 (2013.01) [F05D 2230/60 (2013.01); F05D 2260/20 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A coolable component for a streaming engine, comprising:
an outer wall providing an outer surface adapted to be in contact with a hot fluid like a hot gas stream used in the streaming engine or to be coated with a coating that is adapted to be in contact with the hot fluid, wherein the outer surface is at least partially curved,
at least one cooling channel inside the outer wall adapted to guide a cooling fluid through said at least one cooling channel to cool the outer wall during operation of the streaming engine,
wherein the at least one cooling channel is adapted to provide a convection cooling of the outer surface,
wherein at least 13% of the outer surface is located above the at least one cooling channel and provides a distance between the outer surface and the at least one cooling channel of at least 7% of a total thickness of the outer wall measured along a straight line being perpendicular to the outer surface and being at least 0.2 mm, and
wherein the at least one cooling channel provides a surface area in a cross section perpendicular to a direction of the at least one cooling channel of at least 20% of t2, wherein t is an average thickness of the outer wall measured perpendicular to the outer surface, and
wherein at least 60% of the outer surface provides a distance to the at least one cooling channel of at most 0.9 mm, and
wherein in a select cooling channel of the at least one cooling channel, there is a changing form in the cross section perpendicular to the direction of a flow of the cooling fluid.