Shank cavity and cooling hole
AssigneeGeneral Electric Company
InventorsLuke John Ammann, Camilo Andres Sampayo
Life of this patent
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Abstract
A turbine bucket is provided and includes a shank defining a cavity therein, which is connectible with a rotor such that wheelspace air having an initial pressure is permitted to flow into the cavity and a platform coupled to the shank and defining a cooling hole therein, the shank and the platform each further defining the cavity and the cooling hole, respectively, as being fluidly communicative with one another, such that the wheelspace air permitted to flow into the cavity is deliverable from the cavity and through the cooling hole at a second pressure greater than the initial pressure.
Claims18
A turbine bucket, comprising:
- a shank defining a cavity therein, which is connectible with a rotor such that wheelspace air having an initial pressure is permitted to flow into the cavity;
- and
- a platform coupled to the shank and defining a cooling hole therein,
- the shank and the platform each further defining the cavity and the cooling hole, respectively, such that the cavity and the cooling hole are fluidly communicative and such that the wheelspace air, which is permitted to flow into the cavity, is deliverable:
- from the cavity to the cooling hole, and
- through the cooling hole at a second pressure, which is greater than the initial pressure.
A turbine bucket, comprising:
- a shank including a shank body defining a cavity therein, the shank body being connectible with a rotor such that wheelspace air having an initial pressure is permitted to flow into the cavity;
- a platform including a platform body coupled to the shank and defining a cooling hole therein, which is fluidly communicative with the cavity such that the wheelspace air, which is permitted to flow into the cavity, is deliverable from the cavity to the cooling hole and through the cooling hole at a second pressure greater than the initial pressure;
- and
- an aft platform extending from the platform at which the cooling hole terminates such that the wheelspace air is exhaustible into at least one of a turbine flow path, which is defined substantially radially outwardly from the aft platform, and a trench cavity, which is defined substantially radially inwardly from the aft platform.
A turbine bucket, comprising:
- a shank defining a cavity therein, which is connectible with a rotor such that wheelspace air having an initial pressure is permitted to flow into the cavity;
- a platform coupled to the shank and defining a main cooling hole therein, which is fluidly communicative with the cavity, and tributary cooling holes therein, which are fluidly communicative with the main cooling hole, such that the wheelspace air, which is permitted to flow into the cavity, is deliverable from the cavity to the main cooling hole, through the main cooling hole and subsequently through the tributary cooling holes at a second pressure greater than the initial pressure;
- and
- an aft platform extending from the platform at which the tributary cooling holes terminate such that the wheelspace air is exhaustible into at least one of a turbine flow path, which is defined substantially radially outwardly from the aft platform, and a trench cavity, which is defined substantially radially inwardly from the aft platform.
Dependencies are inferred from the claim text.