Patent ID: 9689497
Date: 2017-06-27
CPC Classifications: F01D,F02C,F05D,F16J

Claim:
1. A brush seal device having a brush portion in which a plurality of bristles are arranged and sealing in an axial direction between a housing and a rotational shaft, the brush seal device comprising: an inner circumferential brush seal; an outer circumferential brush seal; and a connection part, wherein said inner circumferential brush seal comprises: an inner-circumferential-side brush portion in which a plurality of bristles are arranged from the connection part to an inner circumferential direction; and an inner-circumferential-side free end portion which is an inner-circumferential-side end portion of the inner-circumferential-side brush portion and is arranged opposite to an outer circumferential surface of the rotational shaft so as to contact or be adjacent to the outer circumferential surface, and said outer circumferential brush seal comprises: an outer-circumferential-side brush portion in which a plurality of bristles are arranged from the connection part to an outer circumferential direction; and an outer-circumferential-side free end portion which is an outer-circumferential-side end portion of the outer-circumferential-side brush portion and is arranged opposite to an inner circumferential surface of the housing so as to contact or be adjacent to the inner circumferential surface, wherein a plurality of plate brush seal unit discs are integrally formed by axially laminating themselves to configure at least one of said inner circumferential brush seal and said outer circumferential brush seal, each of said plate brush seal unit discs having narrow beams extending from the connection part as the bristles.