US 12,286,902 B2
Turbomachine cooling trench
Daniel Endecott Osgood, Loveland, OH (US); Zachary Daniel Webster, Cincinnati, OH (US); Gregory Terrence Garay, West Chester, OH (US); and Kevin Robert Feldmann, Mason, OH (US)
Assigned to General Electric Company, Evendale, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Jan. 22, 2024, as Appl. No. 18/418,909.
Application 18/418,909 is a continuation of application No. 17/852,875, filed on Jun. 29, 2022, granted, now 11,879,356.
Application 17/852,875 is a continuation of application No. 16/055,292, filed on Aug. 6, 2018, granted, now 11,401,818, issued on Aug. 2, 2022.
Prior Publication US 2024/0209738 A1, Jun. 27, 2024
Int. Cl. F01D 5/18 (2006.01); F01D 1/12 (2006.01); F01D 5/14 (2006.01); F01D 5/28 (2006.01); F01D 11/12 (2006.01); F01D 11/14 (2006.01)
CPC F01D 5/186 (2013.01) [F01D 1/12 (2013.01); F01D 5/147 (2013.01); F01D 5/284 (2013.01); F01D 11/12 (2013.01); F01D 11/122 (2013.01); F01D 11/14 (2013.01); F05D 2220/32 (2013.01); F05D 2230/31 (2013.01); F05D 2230/311 (2013.01); F05D 2240/303 (2013.01); F05D 2240/304 (2013.01); F05D 2260/201 (2013.01); F05D 2260/202 (2013.01); F05D 2300/514 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A component for a turbine engine, comprising:
a body with an exterior surface abutting a combustion flowpath for a combustion gas flow through the turbine engine;
a cooling passage defined within the body and supplying cooling air to the component; and
a trench on the exterior surface, comprising:
an undulating surface defining a minimum depth and a maximum depth of the trench with respect to the exterior surface;
a plurality of outlets in the undulating surface; and
a plurality of cooling holes extending from the cooling passage to the corresponding plurality of outlets;
wherein the undulating surface comprises a curved surface defining a cooling wall between two adjacent outlets in the plurality of outlets,
wherein at least one outlet in the plurality of outlets is located at the maximum depth of the trench; and
wherein at least one cooling hole in the plurality of cooling holes comprises a cross-sectional area that increases in a direction toward the plurality of outlets.