Fluid pressure reduction devices
First Claim
Patent Images
1. A fluid pressure reduction device comprising:
- a plurality of nested cylinders forming a hollow structure comprising an inner surface and an outer surface; and
a plurality of passageways extending between the inner and outer surfaces through the nested cylinders, at least one of the cylinders including first apertures substantially differently shaped from second apertures in a second one of the cylinders, and at least one of the first apertures having a first wetted perimeter that is greater than a second wetted perimeter of another one of the apertures having the same area as the at least one of the first apertures.
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Abstract
An example fluid pressure reduction device includes a plurality of nested cylinders forming a hollow structure comprising an inner surface and an outer surface. The device also includes a plurality of passageways extending between the inner and outer surfaces through the nested cylinders. At least one of the cylinders includes first apertures substantially differently shaped from second apertures in a second one of the cylinders. At least one of the first apertures has a first wetted perimeter that is greater than a second wetted perimeter of another aperture having the same area as the at least one of the first apertures.
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Citations
16 Claims
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1. A fluid pressure reduction device comprising:
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a plurality of nested cylinders forming a hollow structure comprising an inner surface and an outer surface; and a plurality of passageways extending between the inner and outer surfaces through the nested cylinders, at least one of the cylinders including first apertures substantially differently shaped from second apertures in a second one of the cylinders, and at least one of the first apertures having a first wetted perimeter that is greater than a second wetted perimeter of another one of the apertures having the same area as the at least one of the first apertures. - View Dependent Claims (2, 3, 6, 7, 8)
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4. A fluid pressure reduction device comprising:
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a plurality of nested cylinders forming a hollow structure comprising an inner surface and an outer surface; and a plurality of passageways extending between the inner and outer surfaces through the nested cylinders, at least one of the cylinders including first apertures substantially differently shaped from second apertures in a second one of the cylinders, and at least one of the first apertures having a first wetted perimeter that is greater than a second wetted perimeter of another aperture having the same area as the at least one of the first apertures, wherein the first apertures being substantially differently shaped from the second apertures comprises the first apertures having a polygonal shape and the second apertures having a non-polygonal shape. - View Dependent Claims (9, 10, 11, 12)
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5. A fluid pressure reduction device comprising:
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a plurality of nested cylinders forming a hollow structure comprising an inner surface and an outer surface; and a plurality of passageways extending between the inner and outer surfaces through the nested cylinders, at least one of the cylinders including first apertures substantially differently shaped from second apertures in a second one of the cylinders, and at least one of the first apertures having a first wetted perimeter that is greater than a second wetted perimeter of another aperture having the same area as the at least one of the first apertures, wherein the first apertures are hexagonal-shaped apertures and the second apertures are rectangle-shaped apertures. - View Dependent Claims (13, 14, 15, 16)
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Specification