IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0323390
(2011-12-12)
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등록번호 |
US-8230878
(2012-07-31)
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발명자
/ 주소 |
- Kee, Kok-Hiong
- Huerta-Ochoa, Ruben
- Hu, Jinmin
|
출원인 / 주소 |
|
대리인 / 주소 |
Harness, Dickey & Pierce, P.L.C.
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인용정보 |
피인용 횟수 :
0 인용 특허 :
14 |
초록
▼
A valve is provided that comprises a valve chamber including first and second valve port openings in communication with first and second inlet/outlets, respectively. A shaft is rotatably disposed in the valve chamber. A first valve plate is rotatably coupled to the shaft that is disposed in the valv
A valve is provided that comprises a valve chamber including first and second valve port openings in communication with first and second inlet/outlets, respectively. A shaft is rotatably disposed in the valve chamber. A first valve plate is rotatably coupled to the shaft that is disposed in the valve chamber over the first valve port opening. The first valve plate has a first opening positioned so as to align with the first valve port opening. The first valve plate is configured to rotate from its closed position covering the first valve port opening to an open position, where rotation of the first valve plate adjustably positions at least a portion of the first opening over the first valve port opening. A second valve plate is configured to rotate with the first valve plate, and to cover the second valve port opening.
대표청구항
▼
1. A reversible flow valve comprising: a valve chamber having a lower wall with a first valve port opening and a second valve port opening in communication with a first inlet/outlet and a second inlet/outlet, respectively;a shaft rotatably disposed in the valve chamber;an inner modulating disk rotat
1. A reversible flow valve comprising: a valve chamber having a lower wall with a first valve port opening and a second valve port opening in communication with a first inlet/outlet and a second inlet/outlet, respectively;a shaft rotatably disposed in the valve chamber;an inner modulating disk rotatably coupled to the shaft, the inner modulating disk disposed in the valve chamber over the first valve port opening, and having a first opening aligned with the first valve port opening, where the inner modulating disk is configured to rotate from a closed position in which the inner modulating disk is positioned over the first valve port opening, to an open position in which rotation of the inner modulating disk positions at least a portion of the first opening over the first valve port opening, to thereby allow fluid flow through the first valve port opening and the first opening, the inner modulating disk being configured to be movable in an axial direction towards and away from the first valve port opening;an outer modulating disk encircling the inner modulating disk, the outer modulating disk disposed in the valve chamber over the second valve port opening, and having a second opening aligned with the second valve port opening, the outer modulating disk being configured to rotate with the inner modulating disk from a closed position, in which the outer modulating disk is positioned over the second valve port opening, to an open position in which rotation of the outer modulating disk adjustably positions at least a portion of the second opening over the second valve port opening, to thereby allow fluid flow through the second valve port opening and the second opening, the outer modulating disk being configured to be movable in an axial direction towards and away from the second valve port opening;wherein the inner modulating disk in the closed position is configured to move away from the first valve port opening, and the outer modulating disk in the closed position is configured to move against the second valve port opening, to thereby resist fluid flow through the second valve port opening; andwherein the outer modulating disk in the closed position is configured to move away from the second valve port opening, and the inner modulating disk in the closed position is configured to move against the first valve port opening, to thereby resist fluid flow through the first valve port opening. 2. The valve of claim 1, wherein: the first opening of the inner modulating disk comprises a first tapered slot, such that rotation of the inner modulating disk adjustably positions a wider or narrower portion of the first tapered slot over the first valve port opening, to adjustably vary the rate of fluid flow through the first valve port opening and the first tapered slot; and/orthe second opening of the outer modulating disk comprises a second tapered slot, such that rotation of the outer modulating disk adjustably positions a wider or narrower portion of the second tapered slot over the second valve port opening, to adjustably vary the rate of fluid flow through the second valve port opening and the second tapered slot. 3. The valve of claim 2, further comprising a motor coupled to the shaft for effecting rotation of the inner and outer modulating disks, wherein the motor is operable for controllably rotating the inner and outer modulating disks to incrementally index the first and second tapered slots to a plurality of positions for incrementally adjusting the rate of fluid flow through the first and second valve port openings. 4. The valve of claim 1: wherein the inner modulating disk in the closed position is configured to move away from the first valve port opening by a fluid pressure in the first inlet/outlet and first valve port opening that is higher than the fluid pressure in the second inlet/outlet, to communicate said higher fluid pressure to the valve chamber, and the outer modulating disk in the closed position is configured to be pushed against the second valve port opening by a fluid pressure in the valve chamber that is higher than the fluid pressure in the second valve port opening, to thereby resist fluid flow through the second valve port opening; andwherein the outer modulating disk in the closed position is configured to move away from the second valve port opening by a fluid pressure in the second inlet/outlet and second valve port opening that is higher than the fluid pressure in the first inlet/outlet, to communicate said higher fluid pressure to the valve chamber, and the inner modulating disk in the closed position is configured to be pushed against the first valve port opening by a fluid pressure in the valve chamber that is higher than the fluid pressure in the first valve port opening, to thereby resist fluid flow through the first valve port opening. 5. The valve of claim 1, further comprising: a first biasing spring for biasing the inner modulating disk towards the first valve port opening;a second biasing spring for biasing the outer modulating disk towards the second valve port opening;whereby the inner modulating disk in its closed position is configured to be moved away from the first valve port opening against the force of the first biasing spring by a fluid pressure in the first valve port opening that is greater than fluid pressure in the valve chamber; andwhereby the outer modulating disk in its closed position is configured to be moved away from the second valve port opening against the force of the second biasing spring by a fluid pressure in the second valve port opening that is greater than fluid pressure in the valve chamber. 6. The valve of claim 1, wherein: the shaft is configured to be movable in an axial direction such that the inner modulating disk coupled to the shaft is movable in a direction towards and away from the first valve port opening;fluid pressure in the first valve port opening that is higher than fluid pressure in the valve chamber causes the inner modulating disk in its closed position to move in an axial direction away from the first valve port opening; andfluid pressure in the first valve port opening that is lower than fluid pressure in the valve chamber causes the inner modulating disk in its closed position to move in an axial direction against the first valve port opening. 7. The valve of claim 1, wherein: the inner modulating disk comprises a plate having a generally round contour and a central aperture having a keyed configuration;the first opening comprises a first tapered semi-circular slot concentric with the central aperture;the outer modulating disk comprises a plate having a generally ring-shaped contour; andthe second opening comprises a second tapered semi-circular slot concentric with the first tapered semi-circular slot. 8. The valve of claim 7, wherein: the outer modulating disk is coupled to the inner modulating disk such that the first and second tapered semi-circular slots are positioned on generally opposing sides of the central aperture; andthe inner and outer modulating disks are coupled by a key and slot arrangement that permits the outer modulating disk to move axially relative to the inner modulating disk. 9. A reversible flow valve comprising: a valve housing having a valve chamber including a first valve port opening and a second valve port opening in communication with a first inlet/outlet and a second inlet/outlet, respectively;a shaft rotatably disposed in the valve chamber;a first valve plate disposed in the valve chamber over the first valve port opening and rotatably coupled to the shaft, the first valve plate having a first opening positioned in the first valve plate so as to align with the first valve port opening, where the first valve plate is configured to rotate from a closed position, in which the first valve plate is positioned over the first valve port opening, to an open position in which rotation of the first valve plate positions at least a portion of the first opening over the first valve port opening, to thereby allow fluid flow through the first valve port opening and the first opening, wherein the first valve plate in its closed position is configured to be movable in an axial direction towards and away from the first valve port opening; anda second valve plate that is configured to rotate with the first valve plate, the second valve plate being configured to cover the second valve port opening when the first valve plate is rotated to the closed position, wherein the second valve plate in its closed position is configured to be movable relative to the first valve plate in an axial direction towards and away from the second valve port opening;wherein the first valve plate in the closed position is configured to move away from the first valve port opening, and the second valve plate in the closed position is configured to move against the second valve port opening, to thereby resist fluid flow through the second valve port opening; andwherein the second valve plate in the closed position is configured to move away from the second valve port opening, and the first valve plate in the closed position is configured to move against the first valve port opening, to thereby resist fluid flow through the first valve port opening. 10. The valve of claim 9, wherein: the first valve plate comprises a plate having a generally round contour, a central aperture having a keyed configuration, and a cavity therein;the first opening comprises a first tapered semi-circular slot concentric with the aperture and a second tapered semi-circular slot concentric with the first tapered semi-circular slot; andthe second valve plate is disposed within the cavity in the first valve plate; 11. The valve of claim 10, wherein the second valve plate comprises a plate having a generally disk shaped contour and a generally convex-shaped upper surface, said second valve plate being smaller than the cavity of the first valve plate such that the second valve plate is movable within the cavity in an axial direction relative to the first valve plate. 12. The valve of claim 9, further comprising a motor coupled to the shaft for effecting rotation of the first and second valve plates, wherein the motor is operable for controllably rotating the first and second valve plates. 13. The valve of claim 9, wherein the first opening of the first valve plate comprises a first tapered semi-circular slot positioned so as to align with the first valve port opening; and a second tapered semi-circular slot concentric with the first tapered semi-circular slot, and positioned so as to align with the second valve port opening; whereby the first valve plate is configured to rotate from a closed position to an open position in which rotation of the first valve plate adjustably positions a wider or narrower portion of the first and second tapered semi-circular slots over the respective first and second valve port openings, such that fluid flow rate through the valve is controllable by the rotational positioning of a wider or narrower portion of the first and second tapered semi-circular slots over the respective first and second valve port openings. 14. The valve of claim 9: wherein the first valve plate in the closed position is configured to move away from the first valve port opening by a fluid pressure in the first inlet/outlet and first valve port opening that is higher than the fluid pressure in the second inlet/outlet, to communicate said higher fluid pressure to the valve chamber; and the second valve plate in the closed position is configured to be pushed against the second valve port opening by a fluid pressure in the valve chamber that is higher than the fluid pressure in the second valve port opening, to thereby resist fluid flow through the second valve port opening; andwherein the second valve plate in the closed position is configured to move away from the second valve port opening by a fluid pressure in the second inlet/outlet and second valve port opening that is higher than the fluid pressure in the first inlet/outlet, to communicate said higher fluid pressure to the valve chamber; and the first valve plate in the closed position is configured to be pushed against the first valve port opening by a fluid pressure in the valve chamber that is higher than the fluid pressure in the first valve port opening, to thereby resist fluid flow through the first valve port opening. 15. The valve of claim 9, wherein the shaft is configured to be movable in an axial direction such that the first valve plate coupled to the shaft is movable in a direction towards and away from the first valve port opening. 16. The valve of claim 9, wherein: the first valve plate comprises a plate having a generally round contour and a central aperture having a keyed configuration;the first opening of the first valve plate comprises a first tapered semi-circular slot concentric with the aperture;the second valve plate comprises a plate having a generally ring-shaped contour and a second tapered semi-circular slot concentric with the first tapered semi-circular slot; andthe second valve plate is coupled to the first valve plate such that the first and second tapered semi-circular slots are positioned on generally opposing sides of the central aperture and such that the second valve plate is movable axially relative to the first valve plate. 17. The valve of claim 9, wherein: the first valve plate includes a cavity therein; andthe second valve plate comprises a plate disposed within the cavity and having a generally disk shaped contour and a generally convex-shaped upper surface, said second valve plate being smaller than the cavity of the first valve plate such that the second valve plate is movable within the cavity in an axial direction relative to the first valve plate. 18. The valve of claim 9, wherein: the first valve plate is configured to move away from the first valve port opening to communicate fluid pressure through a first bleed passage to the valve chamber, which fluid pressure pushes the second valve plate into sealing engagement with the second valve port opening and restricts fluid flow through the second valve port opening; andthe second valve plate is configured to move away from the second valve port opening to communicate fluid pressure through a second bleed passage to the valve chamber, which fluid pressure pushes the first valve plate into sealing engagement with the first valve port opening and restricts fluid flow through the first valve port opening. 19. A valve comprising: a valve chamber having a lower wall with a first valve port opening and a second valve port opening in communication with a first inlet/outlet and a second inlet/outlet, respectively;a shaft rotatably disposed in the valve chamber;a first valve plate disposed in the valve chamber over the first and second valve port openings and rotatably coupled to the shaft, the first valve plate being configured to be movable in an axial direction towards and away from the first and second valve port openings, said first valve plate having a first opening positioned so as to align with the first valve port opening, and a second opening and cavity positioned therein so as to align with the second valve port opening, where the first valve plate is configured to rotate from a closed position, in which the first valve plate is positioned over the first valve port opening and the cavity is positioned over the second valve port opening, to an open position in which rotation of the first valve plate positions at least a portion of the first opening over the first valve port opening and at least a portion of the second opening over the second valve port opening, for adjustably varying the fluid flow rate through the valve;a second valve plate disposed within the cavity in the first valve plate, so as to be positioned over the second valve port opening when the first valve plate is rotated to the closed position, the second valve plate being configured to be movable relative to the first valve plate in an axial direction towards and away from the second valve port opening;wherein the first valve plate in the closed position is configured to move away from the first valve port opening, and the second valve plate in the closed position is configured to move against the second valve port opening, to thereby resist fluid flow through the second valve port opening; andwherein the second valve plate in the closed position is configured to move away from the second valve port opening, and the first valve plate in the closed position is configured to move against the first valve port opening, to thereby resist fluid flow through the first valve port opening. 20. The valve of claim 19, wherein: the first opening of the first valve plate comprises a first tapered slot; and/orthe second opening of the first valve plate comprises a second tapered slot; and/orthe second valve comprises a plate having a generally disk shaped contour and a generally convex-shaped upper surface, said second valve plate being smaller than the cavity of the first valve plate such that the second valve plate is configured to move within the cavity in an axial direction relative to the first valve plate; and/orthe shaft is configured to be movable in an axial direction such that the first valve plate coupled to the shaft is movable in a direction towards and away from the first valve port opening; and/ora motor is coupled to the shaft for controllably rotating the first and second valve plates to incrementally adjust the rate of fluid flow through the first and second valve port openings.
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