Brush seal with a flexible front plate

Details Brush seal with a flexible front plate Brush seal with a flexible front plate

1996-10-04

1999-03-23

Knight, Anthony

Seal for a joint or juncture

Seal between relatively movable parts

Brush seal

F16J 15447

Patent

active

058849181

ABSTRACT:
A brush seal device for sealing a high pressure area from a low pressure area. The brush seal device comprises a plurality of bristles arranged annularly. An annular back plate is positioned concentric to and on the low pressure side of the bristles, the back plate having a recess adapted to delay contact of the bristles with the back plate upon application of the pressure across the brush seal device. A flexible annular front plate is positioned adjacent to and concentric with the bristles on the high pressure side of the bristles. This combination of elements helps to reduce uneven wear of the bristles in a brush seal device and, therefore, helps to prolong the life of such a seal.

REFERENCES:
patent: 5071138 (1991-12-01), Mackay et al.
patent: 5174582 (1992-12-01), Ferguson
patent: 5316318 (1994-05-01), Veau
patent: 5318309 (1994-06-01), Tseng et al.
patent: 5335920 (1994-08-01), Tseng et al.
patent: 5351971 (1994-10-01), Short
patent: 5401036 (1995-03-01), Basu
patent: 5568931 (1996-10-01), Tseng et al.

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