Aerodynamic seal assemblies for turbo-machinery
First Claim
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1. An aerodynamic seal assembly positioned between a stationary component and a rotating component of a turbo-machine, comprising:
- a plurality of springs coupled to a top piece;
a shoe connected to the plurality of springs; and
a secondary seal coupled to the top piece and positioned about the plurality of springs and the shoe, wherein the secondary seal acts as a spring and as a seal that blocks a fluid flowing between the top piece and the shoe,wherein a curvature around the rotating component has a mismatch with a curvature of the shoe such that a convergent-divergent or a convergent squeeze fluid film forms between the shoe and the rotating component during rotation of the rotating component to prevent contact of the shoe and the rotating component.
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Abstract
The present application provides an aerodynamic seal assembly for use with a turbo-machine. The aerodynamic seal assembly may include a number of springs, a shoe connected to the springs, and a secondary seal positioned about the springs and the shoe.
27 Citations
8 Claims
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1. An aerodynamic seal assembly positioned between a stationary component and a rotating component of a turbo-machine, comprising:
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a plurality of springs coupled to a top piece; a shoe connected to the plurality of springs; and a secondary seal coupled to the top piece and positioned about the plurality of springs and the shoe, wherein the secondary seal acts as a spring and as a seal that blocks a fluid flowing between the top piece and the shoe, wherein a curvature around the rotating component has a mismatch with a curvature of the shoe such that a convergent-divergent or a convergent squeeze fluid film forms between the shoe and the rotating component during rotation of the rotating component to prevent contact of the shoe and the rotating component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification