IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0302734
(2011-11-22)
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등록번호 |
US-8813577
(2014-08-26)
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발명자
/ 주소 |
- England, John Dwight
- Kelley, Anthony R.
- Cronise, Raymond J.
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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 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
16 |
초록
▼
A device used in making differential measurements of a flow includes a flow obstruction and a support arm. The flow obstruction's forward portion is a nose cone. The flow obstruction's aft portion is coupled to the nose cone. The support arm's first end is coupled to an exterior wall of a conduit, a
A device used in making differential measurements of a flow includes a flow obstruction and a support arm. The flow obstruction's forward portion is a nose cone. The flow obstruction's aft portion is coupled to the nose cone. The support arm's first end is coupled to an exterior wall of a conduit, and its second end is coupled to the forward portion of the flow obstruction. The support arm positions the flow obstruction in the conduit such that a flow region is defined around its nose cone, and such that the support arm's first and second end are separated from one another with respect to a length dimension of the conduit. Measurement ports are provided in the support arm and flow obstruction. Manifolds extending through the flow obstruction and support arm couple the ports to points at the exterior wall of the conduit.
대표청구항
▼
1. A compressed-flow generation device for use in making differential measurements of flow attributes, comprising: a flow obstruction having a forward portion and an aft portion, said forward portion consisting of a nose cone having a sealed minimum-radius tip and a maximum-radius portion, said aft
1. A compressed-flow generation device for use in making differential measurements of flow attributes, comprising: a flow obstruction having a forward portion and an aft portion, said forward portion consisting of a nose cone having a sealed minimum-radius tip and a maximum-radius portion, said aft portion coupled to said maximum-radius portion;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 forward portion of said flow obstruction, wherein said support arm is adapted to position said flow obstruction in the conduit wherein a flow region is defined around said maximum-radius portion, 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 said at least one 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; anda second manifold formed in said flow obstruction and said support arm, said second manifold in fluid communication with said at least one downstream measurement port, 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 of downstream measurement ports distributed circumferentially about said forward portion at said maximum-radius portion. 3. A compressed-flow generation device as in claim 1, wherein said aft portion is shaped as a mirror image of said forward portion. 4. A compressed-flow generation device as in claim 1, wherein said support arm is shaped to position said minimum-radius tip 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 said at least one upstream measurement port is located at said tapered edge. 7. 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: a flow obstruction having a sealed minimum-radius tip and a maximum-radius portion;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 in the conduit with said minimum-radius tip upstream of said maximum-radius portion with respect to the flow direction wherein a flow region is defined around said maximum-radius portion, 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 said at least one 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 at said maximum-radius portion; anda second manifold formed in said flow obstruction and said support arm, said second manifold in fluid communication with said at least one measurement port so-formed in said flow obstruction, said second manifold terminating and accessible at the exterior wall of the conduit. 8. A compressed-flow generation device as in claim 7, wherein said flow obstruction comprises a nose cone shape between said minimum-radius tip and said maximum-radius portion. 9. A compressed-flow generation device as in claim 7, wherein said at least one measurement port so-formed in said flow obstruction comprises a plurality of measurement ports distributed circumferentially about said flow obstruction at said maximum-radius portion. 10. A compressed-flow generation device as in claim 7, wherein said support arm is shaped to position said minimum-radius tip at a central portion of the conduit. 11. A compressed-flow generation device as in claim 7, wherein said support arm defines a tapered edge facing the flow direction. 12. A compressed-flow generation device as in claim 11, wherein said at least one measurement port so-formed in said support arm is located at said tapered edge. 13. 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 a flow obstruction having a sealed minimum-radius tip and a maximum-radius portion adapted to pass through the aperture,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 the exterior wall, said second end coupled to said flow obstruction, wherein said support arm is adapted to position said flow obstruction in the conduit with said minimum-radius tip upstream of said maximum-radius portion with respect to the flow direction wherein a flow region is defined around said maximum-radius portion, 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 said at least one measurement port so-formed in said support arm, said first manifold terminating and accessible at the exterior wall,at least one measurement port formed in said flow obstruction, anda second manifold formed in said flow obstruction and said support arm, said second manifold in fluid communication with said at least one measurement port so-formed in said flow obstruction, said second manifold terminating and accessible at the exterior wall of the conduit. 14. A compressed-flow generation device as in claim 13, wherein said flow obstruction comprises a nose cone shape between said minimum-radius tip and said maximum-radius portion. 15. A compressed-flow generation device as in claim 13, wherein said at least one measurement port so-formed in said flow obstruction comprises a plurality of measurement ports distributed circumferentially about said flow obstruction at said maximum-radius portion. 16. A compressed-flow generation device as in claim 13, wherein said support arm is shaped to position said minimum-radius tip at a central portion of the conduit. 17. A compressed-flow generation device as in claim 13, wherein said support arm defines a tapered edge facing the flow direction. 18. A compressed-flow generation device as in claim 17, wherein said at least one measurement port so-formed in said support arm is located at said tapered edge.
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