Patent ID: 9234592
Filing Date: 2016-01-12
CPC Classification: F01D,F02C,F05D,F16J

Claim Text:
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 part having an inner circumferential brush seal; and an outer circumferential brush seal part having an outer circumferential brush seal, wherein said inner circumferential brush seal comprises: an attachment section provided at an outer circumferential side; a brush portion in which a plurality of bristles are arranged from the attachment section to an inner circumferential direction; and a free end portion which is an inner-circumferential-side end portion of the 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 attachment section provided at an outer circumferential side; a brush portion in which a plurality of bristles are arranged from the attachment section to an inner circumferential direction; and a free end portion which is an inner-circumferential-side end portion of the brush portion and is arranged opposite to an outer circumferential surface of the inner circumferential brush seal part so as to contact or be adjacent to the outer circumferential surface.