Brush seal device
AssigneeEagle Industry Co., Ltd.
InventorHideyuki Inoue
Life of this patent
Estimating the term…
Abstract
When a clearance between a rotor and the free end of a brush seal of thin plates becomes larger by oscillation of the rotor or the like, the enlarged clearance is effectively sealed. In order to achieve this effect, in a brush seal device, brush seal units as recess layers and brush seal units as projection layers are stacked in the direction of the pressure of the sealed fluid to form recess and projection portion on its free end. The inner diameter of the recess layer is different from that of the projection layer.
Claims5
A brush seal device, mounted on a first component of two components that are relatively rotated, for sealing the clearance given between the first component and a second component, comprising:
- a brush seal having stacked brush seal units, each brush seal unit comprising:
- a brush section formed by forming slits in a thin plate at a first side facing the second component;
- an attachment section as a base part that is fixed to the first component at a second side of the thin plate;
- wherein the brush seal is a lamination of the brush seal units as recess layers that has at its free end recesses and the brush seal units as projection layers that has at its free end projections and are stacked in the direction of the pressure of sealed fluid;
- wherein the inner diameter of the projection is different from that of the recess and wherein at least one recess layer is positioned between two brush seal units as projection layers.
Dependencies are inferred from the claim text.