US 11,859,510 B2
Turbine blade tip, turbine blade and method
Björn Anders, Berlin (DE); Reiner Anton, Berlin (DE); Kay Krabiell, Hohen Neuendorf (DE); and Christian Lerner, Dorsten (DE)
Assigned to Siemens Energy Global GmbH & Co. KG, Bayern (DE)
Appl. No. 17/802,948
Filed by Siemens Energy Global GmbH & Co. KG, Bayern (DE)
PCT Filed Feb. 8, 2021, PCT No. PCT/EP2021/052959
§ 371(c)(1), (2) Date Aug. 27, 2022,
PCT Pub. No. WO2021/175538, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 10 2020 202 891.5 (DE), filed on Mar. 6, 2020.
Prior Publication US 2023/0127843 A1, Apr. 27, 2023
Int. Cl. F01D 5/20 (2006.01); F01D 5/18 (2006.01)
CPC F01D 5/18 (2013.01) [F01D 5/186 (2013.01); F01D 5/187 (2013.01); F01D 5/20 (2013.01); F05D 2220/32 (2013.01); F05D 2240/30 (2013.01); F05D 2260/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A blade tip of a turbine blade comprising:
a wall circumferential on a surface along an outer contour of the turbine blade, whereby a recess is formed within the wall between a pressure side portion of the wall and a suction side portion of the wall, wherein there is a channel in the wall, and
an inflow housing that extends into the recess from the wall,
wherein the channel is supplied with cooling air via at least one supply air channel of the turbine blade,
wherein there is a plurality of cooling air holes, which are arranged in the wall and be fluidically connected to the channel and which allow the cooling air to flow out of a radial end of the wall,
wherein the inflow housing covers the at least one supply air channel, which leads into the channel of the wall, and
wherein the inflow housing forms part of the channel.