Brush seal
AssigneeAlstom
InventorsOlaf Dierker, Harald Römer, Heinrich Roth
Life of this patent
Estimating the term…
Abstract
In a brush seal for sealing off the gap between a rotating and a stationary component, a plurality of radially inwardly running, elastically flexible brushes are held at one end in a basic body seated in a first of the components. They bear sealingly at the other end on the annular other component. The brushes bear, over their predominant longitudinal extent, on a guide plate. Both the basic body and the guide plate are seated in a groove of one of the components. The basic body and the guide plate are held in their mutual position by means of a wire mortised into the groove.
Claims5
A brush seal for sealing off a gap between a rotary member mounted for rotation about an axis and a stationary member surrounding the rotary member, the brush seal comprising:
- a circumferential groove in the stationary member, the groove having a first outer wall and a second outer wall, a basic body received in the groove in abutting relation with the first outer wall, a plurality of brushes secured in the basic body and extending radially inward, relative to the axis of rotation of the rotary member, a guide plate received in the groove on one side of the basic body, and a ring received in the groove on the opposite side of the basic body, the guide plate having an axial shoulder, the groove including a retainer surface for engaging the axial shoulder, and the ring positioned in the groove in engagement with second outer wall, the second outer wall being spaced from the rotating member and the ring abutting the basic body on one side and abutting the radial wall of the groove, the radial wall of the groove having a circumferential step, and the ring being retained in the groove between the second outer wall and the step.
A brush seal for sealing off a gap between a rotary member mounted for rotation about an axis and a stationary member surrounding the rotary member, the brush seal comprising:
- a circumferential groove in the stationary member;
- a basic body received in the groove in abutting relation with a first outer wall;
- a plurality of brushes secured in the basic body and extending radially inward, relative to the axis of rotation of the rotary member;
- a guide plate received in the groove on one side of the basic body;
- and
- a ring received in the groove and abutting the basic body on one side of the ring and abutting a radial wall of the groove on an opposite side of the ring.
Dependencies are inferred from the claim text.