Brush seal with reduced clearance
OwnerMark E. Addisinventor
Life of this patent
Estimating the term…
Abstract
A brush seal, comprising: a side plate; a back plate; and a bristle arrangement between the side plate and back plate. At least a portion of the back plate is made from a material that tends not to burr when contacting a rotating component. The bristle arrangement could include a plurality of bristles secured together by a joint. The entire back plate could be made from the low coefficient of friction or low wear rate material. In addition, the side plate could also be made from the low coefficient of friction or low wear rate material. The material allows a reduced clearance between the brush seal and the component engaged by the brush seal.
Claims23
A brush seal, comprising:
- a side plate;
- a back plate;
- and
- a bristle arrangement between said side plate and said back plate;
- wherein at least a portion of said back plate is made from a material tends not to burr when contacting a rotating component.
A brush seal, comprising:
- a side plate;
- a back plate;
- and
- a bristle arrangement between said side plate and said back plate, said arrangement including a plurality of bristles secured together by a joint;
- wherein at least said back plate is made from a low coefficient of friction or low wear rate material.
A brush seal, comprising:
- a side plate;
- a back plate;
- and
- a plurality of bristles between said side plate and said back plate;
- wherein said bristles are metallic and at least one of said plates is plastic.
A method of reducing a clearance between a brush seal and a component, comprising the steps of:
- providing a brush seal having a back plate and bristles;
- forming at least a portion of said back plate from a material that resists burring when contacting a rotating component;
- and
- spacing said portion from said component at a reduced distance;
- wherein said reduced distance is less than a distance if said portion were not made from said material.
Dependencies are inferred from the claim text.