IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0437881
(2009-05-08)
|
등록번호 |
US-8235064
(2012-08-07)
|
발명자
/ 주소 |
- Kasprzyk, Donald J.
- Erickson, James Edward
|
출원인 / 주소 |
- Honeywell International Inc.
|
대리인 / 주소 |
Seager Tufte & Wickhem LLC
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
12 |
초록
▼
A single magnetic coil floating plunger redundant gas valves is disclosed. In an illustrative embodiment, the valve may include a first plunger tube, a second plunger tube spaced a distance from the first plunger tube, a magnetic coil disposed about at least part of the first plunger tube, a first p
A single magnetic coil floating plunger redundant gas valves is disclosed. In an illustrative embodiment, the valve may include a first plunger tube, a second plunger tube spaced a distance from the first plunger tube, a magnetic coil disposed about at least part of the first plunger tube, a first plunger disposed within the first plunger tube, and a second plunger disposed within the second plunger tube. The first and second plungers may be operatively coupled to first and second valve members. Activation of the magnetic coil may result in the first and second plungers being suspended in the plunger tubes without a hard mechanical plunger stop to selectively open corresponding valves or other actuatable components, as desired.
대표청구항
▼
1. A single coil redundant valve, comprising: a first plunger tube formed at least in part from a substantially non-magnetic, flux conducting material and having an open end;a second plunger tube formed at least in part from a substantially non-magnetic, flux conducting material and having an open e
1. A single coil redundant valve, comprising: a first plunger tube formed at least in part from a substantially non-magnetic, flux conducting material and having an open end;a second plunger tube formed at least in part from a substantially non-magnetic, flux conducting material and having an open end, wherein the second plunger tube is laterally offset and spaced from the first plunger tube;a magnetic coil extending around at least part of the first plunger tube;a first plunger formed at least in part from a magnetic-flux-conducting material, the first plunger having a top end and a bottom end;the first plunger is slidably disposed within the first plunger tube with the bottom end of the first plunger oriented toward the open end of the first plunger tube, wherein activation of the magnetic coil moves the first plunger from a second position toward a first position, wherein when the first plunger is in the first position, the top end of the first plunger does not engage a hard mechanical stop;a first valve member operatively coupled to the bottom end of the first plunger;a second plunger formed at least in part from a magnetic-flux-conducting material, the second plunger having a top end and a bottom end;the second plunger is slidably disposed within the second plunger tube with the bottom end of the second plunger oriented toward the open end of the second plunger tube, wherein activation of the magnetic coil moves the second plunger from a second position toward a first position, wherein when the second plunger is in the first position, the top end of the second plunger does not engage a hard mechanical stop;a second valve member operatively coupled to the bottom end of the second plunger;a first flux plate formed at least in part from a magnetic-flux-conducting material extending between the first plunger tube and the second plunger tube, wherein the first flux plate is positioned adjacent but extends above the top end of the first plunger and the top end of the second plunger when the first plunger and second plunger are in their second positions; anda second flux plate formed at least in part from a magnetic-flux-conducting material extending between the first plunger tube and the second plunger tube, wherein the second flux plate is positioned adjacent but extends above the bottom end of the first plunger and the bottom end of the second plunger when the first plunger and second plunger are in their second positions. 2. The single coil redundant valve of claim 1 further comprising: a first bias element for biasing the first plunger toward its second position;a second bias element for biasing the second plunger toward its second position. 3. The single coil redundant valve of claim 2, wherein the first bias element is a spring that is situated between the second flux plate and the first valve member. 4. The single coil redundant valve of claim 2, wherein the second bias element is a spring that is situated between the top end of the second plunger and a top end of the second plunger tube. 5. The single coil redundant valve of claim 2, wherein the first valve member is in a closed position when the first plunger is in its second position, and the second valve member is in a closed position when the second plunger is in its second position. 6. The single coil redundant valve of claim 5, wherein the first valve member is in an open position when the first plunger is in its first position, and the second valve member is in an open position when the second plunger is in its first position. 7. The single coil redundant valve of claim 5, wherein in the closed position, the first valve member is seated against a first valve seat, wherein the first valve seat is part of a valve housing. 8. The single coil redundant valve of claim 7, wherein in the closed position, the second valve member is seated against a second valve seat, wherein the second valve seat is part of the valve housing. 9. The single coil redundant valve of claim 1, wherein the first valve member and the second valve member form part of gas valves. 10. The single coil redundant valve of claim 1, wherein activation of the magnetic coil causes a magnetic flux loop that extends: from the first plunger, through the first plunger tube, and to the first flux plate;from the first flux plate, through the second plunger tube, and to the second plunger;from the second plunger, through the second plunger tube, and to the second flux plate; andfrom the second flux plate, through the first plunger tube, and back to the first plunger. 11. A single coil redundant valve, comprising: a magnetic coil forming an aperture having an axis;a first plunger movable disposed within the aperture of the magnetic coil, the first plunger is formed at least in part from a magnetic-flux-conducting material and is movable along the axis of the aperture by activation of the magnetic coil;a first valve member operatively coupled to the first plunger;a second plunger laterally offset and spaced from the first plunger, the second plunger is formed at least in part from a magnetic-flux-conducting material and is movable along a second plunger axis by activation of the magnetic coil;a second valve member operatively coupled to the second plunger;a first flux plate formed at least in part from a magnetic-flux-conducting material extending from adjacent a first end of the first plunger to adjacent a first end of the second plunger;a second flux plate formed at least in part from a magnetic-flux-conducting material extending from adjacent a second end of the first plunger to adjacent a second end of the second plunger; andwherein, when activated, the magnetic coil produces a magnetic field that moves the first plunger along the axis of the aperture of the magnetic coil to an activated position, wherein in the activated position, the first plunger is suspended and does not engage any hard mechanical stop. 12. The single coil redundant valve of claim 11, wherein, when activated, the magnetic coil produces a magnetic field that, through the first and second flux plates, moves the second plunger along the second plunger axis to an activated position, wherein in the activated position, the second plunger is suspended and does not engage any hard mechanical stop. 13. The single coil redundant valve of claim 11 further comprising: a first bias element for biasing the first plunger away from the activated position;a second bias element for biasing the second plunger away from the activated position. 14. The single coil redundant valve of claim 13, wherein the first valve member corresponds to a first valve that is in an open position when the first plunger is in its activated position. 15. The single coil redundant valve of claim 14, wherein the second valve member corresponds to a second valve that is in an open position when the second plunger is in its activated position. 16. A method for operating a gas valve, comprising: activating a magnetic coil to produce a magnetic field that moves a first plunger from an un-activated position to an activated position, and further moves a second plunger from an un-activated position to an activated position;wherein the second plunger is laterally offset and spaced from the first plunger, and wherein, while activating the magnetic coil, the first plunger is suspended by the magnetic field and moves to the activated position without engaging any hard mechanical stop. 17. The method of claim 16 wherein, while activating the magnetic coil, the second plunger is suspended by the magnetic field and moves to the activated position without engaging any hard mechanical stop. 18. The method of claim 16 further comprising: biasing the first plunger toward the un-activated position; andbiasing the second plunger toward the un-activated position. 19. The method of claim 16 further comprising: opening a first gas valve as a result of moving the first plunger to the activated position; andopening a second gas valve as a result of moving the second plunger to the activated position. 20. The method of claim 16 wherein the first gas valve and the second gas valve are fluidly connected in series.
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