Quick build brush seals
AssigneeUnited Technologies Corporation
InventorMark E. Addis
Life of this patent
Estimating the term…
Abstract
A brush seal including a back plate, side plate and bristle ring is disclosed wherein the brush seal is secured together entirely through the use of removable fasteners. The back plate may be provided with a circumferential lip thereby providing a surface against which the head of a fastener can be used to compress the back plate against the side plate and thus capture the bristle ring therebetween. The brush seal can thereby be manufactured from disparate materials which could not be manufactured if welding were required.
Claims23
A brush seal, comprising:
- a side plate;
- a back plate having a perimeter;
- a bristle ring disposed between the side plate and the back plate;
- and
- a plurality of fasteners securing the back plate to the side plate, each fastener including a head, the head engaging the back plate perimeter and pressing the back plate and bristle ring against the side plate, each of the plurality of fasteners being located radially outward of an outermost edge of the back plate.
A method of forming a brush seal, comprising:
- positioning a bristle ring proximate a side plate;
- overlaying a back plate atop the bristle ring;
- and
- securing the back plate to the side plate using fasteners engaging a perimeter of the back plate, the fasteners being located radially outward of an outermost edge of the back plate.
A gas turbine engine, comprising:
- a compression section;
- a combustion section;
- a turbine section;
- a shaft assembly connecting the compression section and the turbine section;
- an engine casing surrounding the compression section, combustion section, turbine section, and shaft;
- and
- a brush seal positioned between one of the compression section, combustion section and turbine section and one of the shaft and engine casing, the brush seal including a side plate, a back plate having a perimeter, a bristle disposed between the side plate and the back plate, and a plurality of fasteners securing the back plate to the side plate, each fastener including a head engaging the back plate perimeter and pressing the back plate and bristle ring against the side plate, each of the plurality of fasteners being located radially outward of an outermost edge of the back plate.
A modular brush seal, comprising:
- a side plate;
- a back plate;
- a bristle ring secured between the side plate and the back plate;
- and
- means for removably securing the side plate, back plate and bristle ring together without penetrating the bristle ring and one of the side plates and back plate, the means for remavably securing engaging only a perimeter of the back plate, the means for removably securing being radially outward of an outermost edge of the back plate;
- and
- wherein the means for removably securing includes a plurality of threaded fasteners, wherein the plurality of fasteners each include a head.
Dependencies are inferred from the claim text.