Turbine combustion system cooling scoop
AssigneeSiemens Energy, Inc.
InventorsAndrew R. Narcus, Matthew Gent, Neal Therrien
Life of this patent
Estimating the term…
Abstract
A scoop (54) over a coolant inlet hole (48) in an outer wall (40B) of a double-walled tubular structure (40A, 40B) of a gas turbine engine component (26, 28). The scoop redirects a coolant flow (37) into the hole. The leading edge (56, 58) of the scoop has a central projection (56) or tongue that overhangs the coolant inlet hole, and a curved undercut (58) on each side of the tongue between the tongue and a generally C-shaped or generally U-shaped attachment base (53) of the scoop. A partial scoop (62) may be cooperatively positioned with the scoop (54).
Claims10
A cooling apparatus that redirects a coolant fluid, comprising;
- a first scoop over a first coolant inlet hole in an external wall of a gas turbine component;
- the first scoop comprising a leading edge with a central tongue that overhangs the hole, and a curved undercut on each side of the tongue between the tongue and an attachment base of the scoop;
- wherein the base is attached to an outer surface of the wall, and partly surrounds the first hole.
A cooling apparatus that redirects a coolant fluid, comprising:
- a C-shaped or generally U-shaped attachment base;
- curved sides extending from the base;
- a central tongue extending forward from the curved sides;
- the sides being undercut relative to the base on each side of the tongue between the tongue and the base to define a streamlined scoop shape.
A cooling apparatus that redirects a coolant fluid, comprising;
- a transition duct wall disposed in a coolant flow in a can-annular gas turbine engine;
- and
- a plurality scoops disposed over a respective plurality of coolant inlet holes formed in the transition duct wall at locations upstream of a region defining a minimum distance between the transition duct wall and an adjacent transition duct wall, each scoop comprising a leading edge with a central projection that overhangs the respective coolant inlet hole and an undercut on each side of the projection between the projection and a base of the scoop attached to the transition duct wall.
Dependencies are inferred from the claim text.