Gas turbine bucket with impingement cooled platform
AssigneeGeneral Electric Company
InventorRaphael Durand Jones
Life of this patent
Estimating the term…
Abstract
In a turbine bucket having an airfoil portion and a root portion, with a substantially planar platform at an interface between the airfoil portion and root portion, a platform cooling arrangement including at least one bore in the root portion and at least one impingement cooling tube seated in the bore, the tube extending beyond the bore with an outlet in close proximity to a targeted area on an underside of the platform.
Claims16
In a turbine bucket having an airfoil portion and a root portion, with a substantially planar platform at an interface between the airfoil portion and root portion, a platform cooling arrangement comprising:
- at least one bore in said root portion and at least one impingement cooling tube seated in said at least one bore, said tube extending beyond said bore with an outlet in close proximity to a targeted area on an underside of said platform.
In a turbine bucket having an airfoil portion and a root portion, with a substantially planar platform at an interface between the airfoil portion and root portion, a platform cooling arrangement comprising:
- means for impingement cooling a targeted area on an underside of said platform.
A method of cooling a leading edge fillet region of a turbine bucket having an airfoil portion and a root portion, said airfoil portion joined to a platform extending over said root portion, comprising:
- a) providing a through bore in a leading side of a cover plate in said root portion, said bore communicating with a recess in said root portion underlying said airfoil portion;
- b) inserting a tube in said bore, with a tip of the tube extending beyond said bore and in close proximity to a targeted area on an underside of said platform;
- c) supplying cooling air to said recess via said tube such that said targeted area is impingement cooled by said cooling air passing through said tube.
Dependencies are inferred from the claim text.