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US 6,648,334 B2Granted
Brush seal device
AssigneeEagle Industry Co., Ltd.
InventorHideyuki Inoue
Life of this patent
Estimating the term…
Abstract
Spring constant of a bristle against the buckling of the bristle is lowered and resilient flexing is facilitated even if a rotary shaft is changed in its movement to contact a brush seal of a brush seal device. In the brush seal device, a bending portion is formed amid a bristle constituting a brush seal to facilitate the resilient buckling deformation.
Claims6
A brush seal device mounted to one of first and second components that are rotatable relative to each other with a clearance therebetween, and seals the clearance, comprising:
- a brush seal having a plurality of strips formed by being cut from a thin annular plate, and an attachment section for fixing ends of the strips, wherein the attachment section is a non-cut portion of the annular plate and the free ends of each strip face a corresponding surface of the ether second rotatable component,
- wherein each strip of the brush seal has a bending portion which facilitates a resilient buckling deformation of the strips;
- and
- the bending portion has a concave curved shape relative to a direction of rotation of the second component.
1 more element
Dependencies are inferred from the claim text.