Tortuous path control valve trim

Patent metadata

Field	Value
Publication number	US-9528632-B2
Application number	US-201414513303-A
Country	US
Kind code	B2
Filing date	Oct 14, 2014
Priority date	Oct 14, 2014
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A valve component for controlling fluid flow comprises a body having a first surface and a second surface. At least one tortuous flow channel extends between the first surface and the second surface. The flow channel is at least partially defined by a floor portion and a ceiling portion. The body is formed as one-piece by additive manufacturing to concurrently define the flow channel as a void space. At least one of the floor portion and ceiling portion is disposed at an acute angle relative to a plane containing a layer of material forming the body.

First claim

What is claimed is:

1. A valve component for controlling fluid flow, the valve component comprising:
a body having a first surface and a second surface;
at least one tortuous flow channel extending between the first surface and the second surface, the flow channel configured to have a plurality of sections and a plurality of direction changes within the extent between the first surface and the second surface, each section of the flow channel at least partially defined by a floor portion and a ceiling portion;
the body being formed as one-piece by additive manufacturing to concurrently define the flow channel as a void space; and
wherein, for each section of the flow channel, each of the floor portion and ceiling portion being disposed at an acute angle relative to a plane containing a layer of material forming the body such that each section of the flow channel has a general chevron cross-sectional shape.

2. The valve component of claim 1 , wherein the acute angle for the at least one of the floor portion and ceiling portion is at least 45°.

3. The valve component of claim 1 , wherein a cross-sectional flow area of the flow channel increases as the flow channel extends from the first surface to the second surface.

4. The valve component of claim 1 , further including at least one planar surface extending between the floor portion and the ceiling portion.

5. The valve component of claim 1 , further including a secondary flow channel extending from the flow channel to the second surface.

6. The valve component of claim 1 , wherein a height of the flow channel is greater than a width of the flow channel.

7. The valve component of claim 1 , further including a plurality of tortuous flow channels extending between the first surface and second surface of the body.

8. The valve component of claim 1 , wherein at least one of the floor portion and ceiling portion of the flow channel has a pair of surfaces that intersect at an acute angle, each of the pair of surfaces also being disposed at an acute angle relative to the plane containing the layer of material forming the body.

9. The valve component of claim 1 , wherein the tortuous flow channel comprises at least two sections, each section of the flow channel is offset relative to an adjacent section in a direction orthogonal to the plane containing the layer of material forming the body.

10. A trim cage for controlling fluid flow, the trim cage comprising:
a unitary body having a substantially tubular configuration with a longitudinal central axis, the body having an inner surface and an outer surface;
at least one tortuous flow channel extending through the body from the inner surface to the outer surface for fluid flow therethrough, the tortuous flow channel configured to have a plurality of sections and a plurality of direction changes within the extent between the inner surface and the outer surface, each section of the flow channel is offset relative to an adjacent section, each section of the flow channel has an axial floor portion and axial ceiling portion; and
wherein each of the axial floor portion and axial ceiling portion are disposed at an acute angle relative to a plane extending normal to the longitudinal central axis of the body such that each section of the flow channel has a general chevron cross-sectional shape.

11. The trim cage of claim 10 wherein a cross-sectional flow area of the flow channel increases in the direction extending from the inner surface to the outer surface.

12. The trim cage of claim 10 , further including at least one axially extending surface between the axial floor portion and axial ceiling portion.

13. The trim cage of claim 10 , wherein the body is formed as one-piece by additive manufacturing while concurrently defining the tortuous flow channel.

14. The trim cage of claim 10 , further including a plurality of tortuous flow channels extending between the inner surface and outer surface of the body.

15. The trim cage of claim 10 , wherein at least one of the axial floor portion and axial ceiling portion of the flow channel has a pair of surfaces that intersect at an acute angle, each of the pair of surfaces being disposed at an angle of at least 45° relative to the plane extending normal to the longitudinal central axis of the body.

Assignees

• Gen Electric

Inventors

• Glaun Jeremy Asher

Classifications

• F16K47/08 Primary

  for decreasing pressure {or noise level} and having a throttling member separate from the closure member {, e.g. screens, slots, labyrinths} · CPC title

• B23K26/342

  Build-up welding · CPC title

• F16K47/04 Primary

  for decreasing pressure {or noise level}, the throttle being incorporated in the closure member · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title

• B23K26/0006

  taking account of the properties of the material involved (B23K26/32, B23K26/40 take precedence) · CPC title