L brush seal for turbomachinery application

摘要

A seal arrangement between radially-opposed rotating and stationary components in a turbomachine includes a first rotating component, a second stationary component, and a brush seal located radially therebetween. The brush seal has an axially-extending portion secured to the second stationary component, and an inwardly-extending portion extending across a gap between the first and second components. An inner ring portion of the second stationary component is located radially inward of, and in engagement with the axially-extending portion and at least part of the inwardly-extending portion of the brush seal, wherein an end of the axially-extending portion of the brush seal remote from the inwardly-extending portion is sandwiched between a pair of side rails fixed between the inner ring portion and an outer ring portion of the second stationary component.

主权项

1. A seal arrangement between radially-opposed rotating and stationary components in a turbomachine comprising:
a first rotating component; a second stationary component; a brush seal located radially between said first rotating component and said second stationary component, said brush seal having an axially-extending portion secured to said second stationary component, and an inwardly-extending portion extending across a gap between said first and second components, wherein an end of said axially-extending portion of said brush seal remote from said inwardly-extending portion is sandwiched between a pair of side rails; and an inner ring portion of said second stationary component located radially inward of, and in engagement with said axially-extending portion and at least part of said inwardly-extending portion of said brush seal, wherein said pair of side rails is held between said inner ring portion and an outer ring portion of said second stationary component, leaving an axially-extending radial gap between said axially-extending portion of said brush seal and said outer ring portion of said second stationary component.