Brush seals
AssigneeROLLS-ROYCE plc
InventorsStuart A. Bridges, John Goddard
Life of this patent
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Abstract
A method of manufacturing a brush seal is disclosed which comprises producing a plurality of tufts of brush material and securing the tufts between two side plates to form a seal. Each tuft is produced by forming a tape which comprises one or more layers of parallel contiguous lengths of filaments adhesively bonded together to form a self supporting body. The tape is cut into discrete portions and these constitute tufts of bonded filaments. A plurality of tufts are assembled closely adjacent to each other in a support member with a part of each tuft projecting from the support member, and the tufts are subsequently secured in the support member. Finally the adhesive is removed from at least that part of each tuft which projects from the support member.
Claims17
A method of manufacturing a brush seal comprising the steps of:
- forming a tape which comprises one or more layers of parallel contiguous lengths of filaments ahesively bonded together over substantially the entire length of said filaments to form a self supporting body;
- cutting the tape into discrete portions and forming a plurality of tufts of bonded filaments therefrom;
- assembling a plurality of tufts closely adjacent to each other in a support member with a part of each tuft projecting from the support member;
- securing each tuft in the support member;
- and
- removing the adhesive from at least that part of each tuft which projects from the support member.
Dependencies are inferred from the claim text.