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US 8,011,894 B2Granted
Sealing mechanism with pivot plate and rope seal
AssigneeGeneral Electric Company
InventorsBrian P. Arness, Louis Veltre, Ariel Kelsey Coleman Harter, John D. Wardell
Life of this patent
Estimating the term…
Abstract
A sealing system for sealing a gap between a dovetail tab of a bucket and a rotor. The sealing system may include a sealing slot positioned about the dovetail tab and a pivot plate positioned within the sealing slot. The sealing slot may include a pivot point and a rest ledge such that the pivot plate pivots about the pivot point and into the gap when the bucket rotates.
Claims12
A sealing system for sealing a gap between a dovetail tab of a bucket and a rotor, comprising:
- a sealing slot positioned in the dovetail tab;
- the sealing slot comprising a pivot point and a rest ledge;
- and a pivot plate positioned within the sealing slot between the rest ledge, the pivot point, and the dovetail tab;
- wherein the pivot plate comprises:
- a front surface and a back surface;
- two arms with an arm gap therebetween covering the rest ledge;
- a wedge formed on the back surface of the pivot plate;
- and a seal on the front surface of the pivot plate and filling a portion of the gap.
5 more elements
A sealing system for sealing a gap between a dovetail tab of a bucket and a rotor, comprising:
- a sealing slot positioned in the dovetail tab;
- the sealing slot comprising a pivot point and a rest ledge;
- a pivot plate positioned within the sealing slot;
- the pivot plate comprising a plurality of arms covering the rest ledge on a first side;
- a wedge on a second side;
- and a rope seal on the first side of the pivot plate and filling a portion of the gap;
- wherein the pivot plate pivots about the pivot point and into the gap when the bucket rotates.
4 more elements
Dependencies are inferred from the claim text.