Flow duct for a ram outlet header

Patent metadata

Field	Value
Publication number	US-10252805-B2
Application number	US-201614988922-A
Country	US
Kind code	B2
Filing date	Jan 6, 2016
Priority date	Jan 6, 2016
Publication date	Apr 9, 2019
Grant date	Apr 9, 2019

Abstract

A flow duct able to be connected to a ram outlet header includes a band having an annular shape and a glove connected to the band. The glove can include a first end that is annular in shape and connected to the band, a body that is curved and has a substantially U-shaped cross section with a first opening, and a second end that has a substantially U-shaped cross section and a second opening that is an extension of the first opening.

First claim

The invention claimed is:

1. A flow duct able to be connected to a ram outlet header comprising:
a band having an annular shape;
a glove connected to the band, the glove comprising:
a first end that is annular in shape and connected to the band;
a body that is curved and has a substantially U-shaped cross section with a first opening; and
a second end that has a substantially U-shaped cross section and a second opening that is an extension of the first opening,

wherein a portion of the band fits within a portion of the first end.

2. The flow duct of claim 1 , further comprising:
a flange adjacent to the first opening and the second opening that is configured to allow the glove to connect to the ram outlet header.

3. The flow duct of claim 1 , wherein an outer diameter of the band is between approximately 11.76 centimeters (4.63 inches) and approximately 11.81 centimeters (4.65 inches).

4. The flow duct of claim 1 , wherein the glove is constructed from a carbon fiber laminate material.

5. The flow duct of claim 1 , wherein the band is connected to the glove by rivets.

6. The flow duct of claim 1 , wherein the body of the glove curves so that the first end and the second end are oriented at least 90 degrees from one another.

7. A system comprising:
a ram outlet header having, a base, a first side, a second side, and a ram outlet header inlet adjacent to and protruding out from the first side; and
a flow duct connected to the ram outlet header inlet, the flow duct comprising:
a band that is substantially cylindrical in shape with a band outlet and a band inlet;
a housing connecting the band outlet to the ram outlet header inlet, the housing having a housing inlet that is substantially cylindrical in shape and adjacent to the band outlet, a body that is curved and has a substantially U-shaped cross section adjacent to the first side of the ram outlet header, and a housing outlet that has a substantially U-shaped cross section adjacent to the ram outlet header inlet.

8. The system of claim 7 , wherein the band inlet has a diameter that is larger than a diameter of the band outlet.

9. The system of claim 7 , wherein a ratio of a first distance from a plane formed by a bottom of the base to a center of the band inlet to a second distance from a plane formed by the intersection of the first side, the second side, and the base to the center of the band inlet is between approximately 0.232 and approximately 0.241.

10. The system of claim 7 , wherein a ratio of a first distance from a plane formed by a bottom of the base to a center of the band inlet to a third distance from a plane formed by band inlet to a plane formed by the intersection of the first side and the base is between approximately 1.388 and approximately 1.491.

11. The system of claim 7 , wherein a ratio of a first distance from a plane formed by a bottom of the base to a center of the band inlet to a fourth distance that is an outer diameter of the band inlet is between approximately 0.861 and approximately 0.889.

12. The system of claim 7 , wherein a ratio of a second distance from a plane formed by the intersection of the first side, the second side, and the base to the center of the band inlet to a third distance from a plane formed by the band inlet to a plane formed by the intersection of the first side and the base is between approximately 5.933 to approximately 6.234.

13. The system of claim 7 , wherein a ratio of a third distance from a plane formed by the band inlet to a plane formed by the intersection of the first side and the base to a fourth distance that is an outer diameter of the band inlet is between approximately 0.595 and approximately 0.622.

14. The system of claim 7 , further comprising:
a flange adjacent to the body and the housing outlet that is configured to allow the housing to be fastened to the ram outlet header.

15. The system of claim 7 , wherein the band outlet is radially within the housing inlet.

16. The system of claim 7 , wherein the flow duct is fastened to a first side of the ram outlet header.

17. The system of claim 7 , wherein the housing inlet and the housing outlet are oriented at least 90 degrees from one another.

18. The system of claim 7 , wherein the housing inlet is laterally offset from the body and the housing outlet so that the housing inlet is laterally further from the second side than the body and the housing outlet.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Chrabascz Eric
• Courtemanche Ronald J

Classifications

• B64D2013/0618

  with arrangements for reducing or managing bleed air, using another air source, e.g. ram air · CPC title

• B64D13/06 Primary

  the air being conditioned (pressurising B64D13/02) · CPC title

• B64D13/00

  Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space · CPC title

• Y02T50/40

  Weight reduction · CPC title

• B64D2013/0603

  Environmental Control Systems · CPC title