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US 2013/0094969 A1Published application
System for sealing a shaft
AssigneeGeneral Electric Company
InventorsSergio Daniel Marques Amaral, Gary Michael Itzel, Xiuzhang James Zhang, Kenneth Dale Moore
Life of this patent
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Abstract
An embodiment of the present invention takes the form of a seal that may substantially reduce cross-shank leakage between components mounted on a shaft. Embodiments of the seal may be connected to a wide variety of rotatable components including, but not limited to, compressor blades, turbine buckets, or the like.
Claims17
A system comprising:
- a rotatable component comprising:
- an airfoil portion comprising a first end, an opposite second end, and suction and pressure surfaces located between the first end and the opposite second end;
- a shank portion comprising a mount and a slot, wherein the slot is positioned near a wall and is adjacent a downstream edge of the airfoil portion;
- a platform portion that connects the airfoil portion to the shank portion;
- a seal comprising:
- an arm portion;
- and
- a hook portion;
- wherein the arm and hook portions are shaped to mate with the slot such that the slot restrains the movement of the seal;
- wherein the seal is sized to substantially prevent a cooling flow from leaking through a shank pocket.
7 more elements
A system comprising:
- a gas turbine comprising:
- a compressor section and a turbine section;
- a turbine bucket installed in the turbine section, wherein the turbine bucket comprises:
- an airfoil comprising a tip, a base, and suction and pressure surfaces that connected the tip and the base;
- a shank comprising a mount and a slot, wherein the slot is positioned near a surface that is adjacent an edge of the airfoil, and an end of the slot is adjacent to a top portion of the mount;
- a platform portion that connects the airfoil to the shank;
- a seal comprising:
- an arm;
- and
- a hook;
- wherein the arm and hook are sized to allow insertion into the slot such that the slot secures the movement of the seal;
- wherein the seal has a width that substantially prevents a cooling flow from leaking through a shank pocket, which is formed between the shank portion of the rotatable component and an another shank portion of an adjacent rotatable component.
9 more elements
Dependencies are inferred from the claim text.