IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0302773
(2011-11-22)
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등록번호 |
US-8555731
(2013-10-15)
|
발명자
/ 주소 |
- England, John Dwight
- Kelley, Anthony R.
- Cronise, Raymond J.
|
출원인 / 주소 |
- The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
15 |
초록
▼
A device used in making differential measurements of a flow includes an open-ended tubular flow obstruction and a support arm. The flow obstruction has an outer annular wall and an inner annular wall. The support arm has a first end coupled to an exterior wall of a conduit and a second end coupled t
A device used in making differential measurements of a flow includes an open-ended tubular flow obstruction and a support arm. The flow obstruction has an outer annular wall and an inner annular wall. The support arm has a first end coupled to an exterior wall of a conduit and a second end coupled to the flow obstruction. The support arm positions the flow obstruction in the conduit such that a first flow region is defined around the flow obstruction's outer annular wall and a second flow region is defined by the flow obstruction's inner annular wall. The support arm's first end and second end are separated from one another with respect to a length dimension of the conduit. Measurement ports provided in the flow obstruction are coupled to points at the exterior wall of the conduit by manifolds extending through the flow obstruction and support arm.
대표청구항
▼
1. A compressed-flow generation device for use in making differential measurements of flow attributes, comprising: an open-ended tubular flow obstruction having an outer annular wall and an inner annular wall, said outer annular wall shaped to define a maximum radius portion of said flow obstruction
1. A compressed-flow generation device for use in making differential measurements of flow attributes, comprising: an open-ended tubular flow obstruction having an outer annular wall and an inner annular wall, said outer annular wall shaped to define a maximum radius portion of said flow obstruction, said inner annular wall shaped to define a minimum radius portion of said flow obstruction;a support arm having a first end and a second end, said first end adapted to be coupled to an exterior wall of a conduit, said second end coupled to said flow obstruction, wherein said support arm is adapted to position said flow obstruction in the conduit wherein a first flow region is defined around said outer annular wall and a second flow region is defined by said inner annular wall, and wherein said first end and said second end are separated from one another with respect to a length dimension of the conduit;at least one upstream measurement port formed in said support arm;a first manifold formed in said support arm and in fluid communication with each said upstream measurement port, said first manifold terminating and accessible at the exterior wall of the conduit;at least one downstream measurement port formed in said flow obstruction, each said downstream measurement port in fluid communication with one of said first flow region and said second flow region; andat least one second manifold formed in said flow obstruction and said support arm, each said second manifold in fluid communication with each said downstream measurement port so-communicating with one of said first flow region and said second flow region, each said second manifold terminating and accessible at the exterior wall of the conduit. 2. A compressed-flow generation device as in claim 1, wherein said at least one downstream measurement port comprises a plurality thereof distributed circumferentially about one of said outer annular wall and said inner annular wall. 3. A compressed-flow generation device as in claim 1, wherein said at least one downstream measurement port comprises a plurality thereof distributed circumferentially about each of said outer annular wall and said inner annular wall. 4. A compressed-flow generation device as in claim 1, wherein said support arm is shaped to position said second flow region at a central portion of the conduit. 5. A compressed-flow generation device as in claim 1 wherein, in terms of a fluid flow direction in the conduit, said first end is upstream of said second end, and wherein said support arm defines a tapered edge facing the fluid flow direction. 6. A compressed-flow generation device as in claim 5, wherein each said upstream measurement port is located at said tapered edge. 7. A compressed-flow generation device as in claim 1, wherein said outer annular wall is a mirror image of said inner annular wall. 8. A compressed-flow generation device as in claim 1, wherein a longitudinal cross-section of said flow obstruction spanning from said first flow region to said second flow region defines an airfoil shape. 9. A compressed-flow generation device as in claim 1, wherein said maximum radius portion and said minimum radius portion are aligned with one another along a longitudinal dimension of said flow obstruction. 10. A compressed-flow generation device for use in making differential measurements of attributes of a fluid moving in a flow direction through a conduit, comprising: an open-ended tubular flow obstruction having an outer annular wall and an inner annular wall, wherein a longitudinal profile of said outer annular wall is curvilinear in the flow direction with a portion of said outer annular wall defining a maximum radius of said flow obstruction, and wherein a longitudinal profile of said inner annular wall is curvilinear in the flow direction with a portion of said inner annular wall defining a minimum radius of said flow obstruction;an arcuately-shaped support arm having a first end and a second end, said first end adapted to be coupled to an exterior wall of a conduit, said second end coupled to said flow obstruction, wherein said support arm is adapted to position said flow obstruction centrally in the conduit wherein a first flow region is defined around said outer annular wall and a second flow region is defined by said inner annular wall, and wherein said first end and said second end are separated from one another along the flow direction with said first end being upstream of said second end;at least one measurement port formed in said support arm;a first manifold formed in said support arm and in fluid communication with each said measurement port so-formed in said support arm, said first manifold terminating and accessible at the exterior wall of the conduit;at least one measurement port formed in said flow obstruction, each said measurement port so-formed in said flow obstruction in fluid communication with one of said first flow region and said second flow region; andat least one second manifold formed in said flow obstruction and said support arm, each said second manifold in fluid communication with each said measurement port so-communicating with one of said first flow region and said second flow region, each said second manifold terminating and accessible at the exterior wall of the conduit. 11. A compressed-flow generation device as in claim 10, wherein said at least one measurement port so-formed in said flow obstruction comprises a plurality thereof distributed circumferentially about one of said outer annular wall and said inner annular wall. 12. A compressed-flow generation device as in claim 10, wherein said at least one measurement port so-formed in said flow obstruction comprises a plurality thereof distributed circumferentially about each of said outer annular wall and said inner annular wall. 13. A compressed-flow generation device as in claim 10, wherein said support arm defines a tapered edge facing the flow direction. 14. A compressed-flow generation device as in claim 13, wherein each said measurement port so-formed in said support arm is located at said tapered edge. 15. A compressed-flow generation device as in claim 10, wherein said outer annular wall is a mirror image of said inner annular wall. 16. A compressed-flow generation device as in claim 10, wherein a longitudinal cross-section of said flow obstruction spanning from said first flow region to said second flow region defines an airfoil shape. 17. A compressed-flow generation device as in claim 10, wherein said maximum radius of said flow obstruction and said minimum radius of said flow obstruction are aligned with one another along a longitudinal dimension of said flow obstruction. 18. A compressed-flow generation device for use in making differential measurements of attributes of a fluid moving in a flow direction through a conduit, comprising an integrated device adapted to be inserted through an aperture formed in an exterior wall of a conduit, adapted to be suspended from and sealed to the exterior wall at the aperture, and adapted to reside in the conduit, said integrated device including an open-ended tubular flow obstruction adapted to pass through the aperture, said flow obstruction having an outer annular wall and an inner annular wall, wherein a longitudinal profile of said outer annular wall is curvilinear in the flow direction with a portion of said outer annular wall defining a maximum radius of said flow obstruction, and wherein a longitudinal profile of said inner annular wall is curvilinear in the flow direction with a portion of said inner annular wall defining a minimum radius of said flow obstruction,an arcuately-shaped support arm adapted to pass through the aperture, said support arm having a first end and a second end, said first end adapted to be coupled to an exterior wall of a conduit, said second end coupled to said flow obstruction, wherein said support arm is adapted to position said flow obstruction centrally in the conduit wherein a first flow region is defined around said outer annular wall and a second flow region is defined by said inner annular wall, and wherein said first end and said second end are separated from one another along the flow direction with said first end being upstream of said second end,at least one measurement port formed in said support arm,a first manifold formed in said support arm and in fluid communication with each said measurement port so-formed in said support arm, said first manifold terminating and accessible at the exterior wall of the conduit,at least one measurement port formed in said flow obstruction, each said measurement port so-formed in said flow obstruction in fluid communication with one of said first flow region and said second flow region, andat least one second manifold formed in said flow obstruction and said support arm, each said second manifold in fluid communication with each said measurement port so-communicating with one of said first flow region and said second flow region, each said second manifold terminating and accessible at the exterior wall of the conduit. 19. A compressed-flow generation device as in claim 18, wherein said at least one measurement port so-formed in said flow obstruction comprises a plurality thereof distributed circumferentially about one of said outer annular wall and said inner annular wall. 20. A compressed-flow generation device as in claim 18, wherein said at least one measurement port so-formed in said flow obstruction comprises a plurality thereof distributed circumferentially about each of said outer annular wall and said inner annular wall. 21. A compressed-flow generation device as in claim 18, wherein said support arm defines a tapered edge facing the flow direction. 22. A compressed-flow generation device as in claim 21, wherein each said measurement port so-formed in said support arm is located at said tapered edge. 23. A compressed-flow generation device as in claim 18, wherein said outer annular wall is a mirror image of said inner annular wall. 24. A compressed-flow generation device as in claim 18, wherein a longitudinal cross-section of said flow obstruction spanning from said first flow region to said second flow region defines an airfoil shape. 25. A compressed-flow generation device as in claim 18, wherein said maximum radius of said flow obstruction and said minimum radius of said flow obstruction are aligned with one another along a longitudinal dimension of said flow obstruction.
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