IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0034117
(2008-02-20)
|
등록번호 |
US-8122908
(2012-02-28)
|
발명자
/ 주소 |
- Wears, William E.
- Adams, Daniel M.
- Schade, Ross A.
- Halm, David G.
|
출원인 / 주소 |
- Fisher Controls International LLC
|
대리인 / 주소 |
Marshall, Gerstein & Borun LLP
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
12 |
초록
▼
A three-way valve body comprises a throat defining a generally cylindrical throat cavity. At least one flow diverter is carried by the valve body and extends into the throat cavity. The flow diverter advantageously interrupts any circulatory fluid flow within the throat cavity, thereby increasing th
A three-way valve body comprises a throat defining a generally cylindrical throat cavity. At least one flow diverter is carried by the valve body and extends into the throat cavity. The flow diverter advantageously interrupts any circulatory fluid flow within the throat cavity, thereby increasing the efficiency at which fluid flows through the valve body. In one embodiment, the at least one flow diverter can comprise one or more ribs integrally formed with the valve body and disposed parallel to a central axis of the throat cavity.
대표청구항
▼
1. A three-way valve body defining a fluid flow path, comprising: a first port, a second port, and a third port, each port in fluid communication with the flow path;a throat disposed between and in fluid communication with each of the first through third ports, the throat comprising a pair of opposi
1. A three-way valve body defining a fluid flow path, comprising: a first port, a second port, and a third port, each port in fluid communication with the flow path;a throat disposed between and in fluid communication with each of the first through third ports, the throat comprising a pair of opposing side wall portions, a rear wall portion, and an opening disposed opposite the rear wall portion, the throat defining a generally cylindrical throat cavity disposed along a central axis; andat least one flow diverter carried by the valve body and extending into the throat cavity to interrupt the flow of fluid along the flow path and in the throat cavity, the at least one flow diverter comprising at least one rib disposed on at least one of the side wall portions or the rear wall portion of the throat. 2. The device of claim 1, wherein the at least one flow diverter comprises one of: a first flow diverter comprising a first rib disposed on the rear wall portion of the throat and being disposed substantially parallel to the central axis of the throat cavity, anda second flow diverter comprising a pair of second ribs, each second rib disposed on one of the opposing sidewall portions of the throat and being disposed substantially parallel to the central axis of the throat cavity. 3. The device of claim 2, wherein the valve body comprises the first flow diverter and the second flow diverter. 4. The fluid flow control device of claim 3, wherein the second ribs of the second flow diverter are disposed a first distance from the first rib of the first flow diverter and a second distance from the opening in the throat, the first distance is greater than the second distance. 5. The device of claim 4, wherein each of the second ribs of the second flow diverter comprises a generally triangular cross-section. 6. The device of claim 4, wherein each of the second ribs of the second flow diverter comprises a first surface and a second surface meeting the first surface at an apex, each of the first and second surfaces comprising a concave surface. 7. The device of claim 1, wherein the throat of the valve body is adapted to interchangeably accommodate a balanced trim assembly to define a bottom port common valve and an unbalanced trim assembly to define a side port common valve. 8. The device of claim 1, wherein the at least one flow diverter increases the flow efficiency of the three-way valve body. 9. A three-way fluid flow control device, comprising: a valve body defining a flow path for accommodating one of a converging or a diverging fluid flow;a control element comprising a valve stem and a valve plug disposed within the valve body and adapted to be moved between a first seated position and a second seated position for controlling the flow of fluid along the flow path; anda first valve seat carried within the valve body and adapted to be sealingly engaged by the valve plug of the control element when the control element is in the first seated position, wherein the valve body comprises: a first port, a second port, and a third port, each port in fluid communication with the flow path;a throat disposed between and in fluid communication with each of the first through third ports, the throat comprising a pair of opposing side wall portions, a rear wall portion, and an opening disposed opposite the rear wall portion, the throat defining a generally cylindrical throat cavity disposed along a central axis, the throat cavity at least partly accommodating the control element; andat least one flow diverter carried by the valve body and extending into the throat cavity to interrupt the flow of fluid along the flow path and in the throat cavity, the at least one flow diverter selected from the group consisting of: a first rib disposed on the rear wall portion of the throat and being disposed substantially parallel to the central axis of the throat cavity, anda pair of second ribs, each second rib disposed on one of the opposing sidewall portions of the throat and being disposed substantially parallel to the central axis of the throat cavity. 10. The device of claim 9, wherein the at least one flow diverter increases the flow efficiency of the three-way fluid flow control device. 11. The device of claim 9, wherein the at least one flow diverter comprises the first rib and the pair of second ribs. 12. The device of claim 11, wherein the second ribs are disposed a first distance from the first rib and a second distance from the opening in the throat, the first distance being greater than the second distance. 13. The device of claim 12, wherein each of the second ribs comprises a generally triangular cross-section. 14. The device of claim 12, wherein each of the second ribs comprises a first surface and a second surface meeting the first surface at an apex, each of the first and second surfaces comprising a concave surface. 15. The device of claim 9, wherein the valve plug comprises a balanced valve plug having a tubular member and a plurality of webs connecting the tubular member to the valve stem. 16. The device of claim 15, further comprising: a valve cage disposed within the throat of the valve body, the valve cage carrying the first valve seat and slidably accommodating the valve plug; anda bonnet fixed to the valve body, the bonnet comprising a body extending into the flow path, the body having a parabolically-shaped cross-section and defining an external surface adapted to be sealingly engaged by the control element when the control element is in the open position. 17. The device of claim 9, wherein the valve plug comprises an unbalanced valve plug comprising a cap and a tubular member extending from the cap. 18. The device of claim 17, wherein the cap of the valve plug comprises a parabolically-shaped cross-section. 19. The device of claim 17, wherein the tubular member comprises a plurality of windows for controlling fluid flow along the flow path at least when the valve plug is in the second seated position. 20. The device of claim 17, further comprising a bonnet fixed to the valve body and comprising a cage portion extending into the flow path, the cage portion defining an internal cylindrical surface, a plurality of windows in fluid communication with the flow path, and a ring-shaped bottom surface disposed opposite the throat cavity from the first valve seat, the valve plug adapted to sealingly engage a portion of the cage portion that is located between the inner cylindrical surface and the bottom ring-shaped surface when the control element is in the second seated position. 21. The device of claim 20, further comprising a protrusion disposed on the bottom ring-shaped surface of the cage portion of the bonnet and extending into the throat cavity for at least decreasing the volume of the throat cavity of the valve body. 22. The device of claim 21, wherein the protrusion comprises an annular ring. 23. The device of claim 21, wherein the protrusion comprises plurality of protrusions circumferentially spaced about the bottom ring-shaped surface, the plurality of protrusions additionally for disrupting the flow of fluid along the flow path.
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