IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0284380
(2008-09-22)
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등록번호 |
US-8162287
(2012-04-24)
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발명자
/ 주소 |
- Overman, Nicholas R.
- Goeke, Jerry Lee
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
40 |
초록
▼
A valve assembly for modulating fuel flow is disclosed which includes a valve housing having an inlet section and an outlet section, at least one valve rotor disposed between the inlet section and the outlet section for modulating fuel flow through the valve housing, wherein the at least one valve r
A valve assembly for modulating fuel flow is disclosed which includes a valve housing having an inlet section and an outlet section, at least one valve rotor disposed between the inlet section and the outlet section for modulating fuel flow through the valve housing, wherein the at least one valve rotor is formed from a ferritic magnetic flux permeable material and is mounted for rotational movement within the valve housing, under the influence of a torsion spring, between first and second magnetically latched positions, and a pair of electromagnets means for alternately latching the at least one valve rotor in the first and second magnetically latched positions.
대표청구항
▼
1. A valve assembly for modulating fuel flow comprising: a) a valve housing having an inlet section and an outlet section; andb) first and second valve rotors disposed between the inlet section and the outlet section for modulating the flow of fuel through the valve housing, wherein each valve rotor
1. A valve assembly for modulating fuel flow comprising: a) a valve housing having an inlet section and an outlet section; andb) first and second valve rotors disposed between the inlet section and the outlet section for modulating the flow of fuel through the valve housing, wherein each valve rotor is mounted for rotational movement about a respective valve shaft within the valve housing between first and second magnetically latched positions, and wherein the valve shafts are axially aligned with one another, wherein each valve rotor defines first and second magnetic flux paths for latching the respective valve rotor in the first and second magnetically latched positions, such that neither of the first and second magnetic flux paths crosses a center plane of the respective valve rotor therebetween. 2. A valve assembly as recited in claim 1, wherein each valve rotor is formed from a ferritic magnetic flux permeable material and has a pair of electromagnets associated therewith for alternately latching the associated valve rotor in the first and second magnetically latched positions. 3. A valve assembly as recited in claim 2, wherein each valve rotor and the pair of electromagnets associated therewith define first and second magnetic flux paths, and wherein neither magnetic flux path crosses through the center of the valve rotor. 4. A valve assembly as recited in claim 3, wherein each valve rotor has a generally cylindrical body portion and two pairs of diametrically opposed winglets that extend radially outwardly from the body portion to interact with the pair of electromagnets associated therewith. 5. A valve assembly for modulating fuel flow comprising: a) a valve housing having an inlet section and an outlet section;b) at least one valve rotor disposed between the inlet section and the outlet section for modulating fuel flow through the valve housing, wherein the at least one valve rotor is formed from a ferritic magnetic flux permeable material and is mounted for rotational movement within the valve housing between first and second magnetically latched positions; andc) electromagnetic means for alternately latching the at least one valve rotor in the first and second magnetically latched positions, wherein the electromagnetic means and the at least one valve rotor define first and second magnetic flux paths, wherein the first magnetic flux path is located on a first side of the at least one valve rotor and the second magnetic flux path is located on a second side of the at least one valve rotor, such that the first and second magnetic flux paths do not intersect one another, wherein the at least one valve rotor has a generally cylindrical body portion and two pairs of diametrically opposed winglets that extend radially outwardly from the body portion to interact with the electromagnetic means. 6. A valve assembly as recited in claim 5, wherein the winglets of each pair of diametrically opposed winglets are spaced 30° apart from one another, and wherein circumferentially adjacent winglets of diametrically opposed winglet pairs are spaced 60° apart from one another. 7. A valve assembly as recited in claim 6, wherein the electromagnetic means includes first and second electromagnets for alternately latching the at least one valve rotor in the first and second magnetically latched positions. 8. A valve assembly as recited in claim 7, wherein the first magnetic flux path is defined at least in part by the first electromagnet and an adjacent pair of winglets of the at least one valve rotor, and the second magnetic flux path is defined at least in part by the second electromagnet and an adjacent pair of winglets of the at least one valve rotor. 9. A valve assembly for modulating fuel flow comprising: a) a valve housing having an inlet section and an outlet section; andb) first and second valve rotors disposed between the inlet section and the outlet section for modulating the flow of fuel through the valve housing, wherein each valve rotor is mounted for rotational movement about a respective valve shaft within the valve housing between first and second magnetically latched positions, and wherein the valve shafts are axially aligned with one another, wherein each valve rotor is formed from a ferritic magnetic flux permeable material and has a pair of electromagnets associated therewith for alternately latching the associated valve rotor in the first and second magnetically latched positions, wherein each valve rotor and the pair of electromagnets associated therewith define first and second magnetic flux paths, and wherein neither magnetic flux path crosses through the center of the valve rotor, wherein each valve rotor has a generally cylindrical body portion and two pairs of diametrically opposed winglets that extend radially outwardly from the body portion to interact with the pair of electromagnets associated therewith. 10. A valve assembly as recited in claim 9, wherein the winglets of each pair of diametrically opposed winglets are spaced 30° apart from one another, and wherein circumferentially adjacent winglets of diametrically opposed winglet pairs are spaced 60° apart from one another. 11. A valve assembly as recited in claim 10, wherein the first magnetic flux path of each valve rotor is defined at least in part by a first electromagnet and an adjacent pair of winglets of the valve rotor, and the second magnetic flux path of each rotor is defined at least in part by a second electromagnet and an adjacent pair of winglets of the valve rotor. 12. A valve assembly as recited in claim 11, wherein each valve rotor rotates in a first direction, under the influence of a torsion spring, to the first magnetically latched position when the first electromagnet associated therewith is energized and wherein each valve rotor rotates in a second direction, under the influence of the torsion spring, to the second magnetically latched position when the second electromagnet associated therewith is energized. 13. A valve assembly as recited in claim 12, wherein each valve rotor is adapted for movement into a neutral position, under the influence of the torsion spring, when the two electromagnets associated therewith are both de-energized. 14. A valve assembly for modulating fuel flow comprising: a) a valve housing having an inlet section and an outlet section;b) at least one valve rotor disposed between the inlet section and the outlet section for modulating fuel flow through the valve housing, wherein the at least one valve rotor is formed from a ferritic magnetic flux permeable material and is mounted for rotational movement within the valve housing between first and second magnetically latched positions; andc) electromagnetic means for alternately latching the at least one valve rotor in the first and second magnetically latched positions, wherein the electromagnetic means and the at least one valve rotor define first and second magnetic flux paths, wherein the first magnetic flux path is located on a first side of the at least one valve rotor and the second magnetic flux path is located on a second side of the at least one valve rotor, such that the first and second magnetic flux paths do not intersect one another, and such that neither of the first and second magnetic flux paths crosses a center plane of the valve rotor therebetween. 15. A valve assembly as recited in claim 14, wherein the at least one valve rotor is mounted for oscillatory movement on a valve shaft disposed within the valve housing. 16. A valve assembly as recited in claim 15, further including a torsion spring for alternately moving the at least one valve rotor from one magnetically latched position to another magnetically latched position. 17. A valve assembly as recited in claim 16, wherein the torsion spring is disposed within an interior bore of the valve shaft. 18. A valve assembly as recited in claim 17, wherein the at least one valve rotor and the valve shaft have corresponding fuel ports arranged so that when the at least one valve rotor is in the first magnetically latched position the fuel ports of the at least one valve rotor are aligned with the fuel ports of the valve shaft, and when the at least one valve rotor is in the second magnetically latched position the fuel ports of the at least one valve rotor are not aligned with the fuel ports of the valve shaft. 19. A valve assembly as recited in claim 18, wherein the fuel ports in the valve shaft communicate with a fuel passage defined in the interior bore of the valve shaft so that when the at least one valve rotor is in the first magnetically latched position fuel flows into the fuel passage of the valve shaft, and when the at least one valve rotor is in the second magnetically latched position fuel does not flow into the fuel passage of the valve shaft. 20. A valve assembly as recited in claim 16, wherein the at least one valve rotor rotates in a first direction, under the influence of the torsion spring, to the first magnetically latched position when the first magnetic flux path is energized and wherein the valve rotor rotates in a second direction, under the influence of the torsion spring, to the second magnetically latched position when the second magnetic flux path is energized. 21. A valve assembly as recited in claim 16, wherein the at least one valve rotor is adapted for movement into a neutral position, under the influence of the torsion spring, when the electromagnetic means are de-energized. 22. A valve assembly as recited in claim 14, wherein the at least one valve rotor has a generally cylindrical body portion and two pairs of diametrically opposed winglets that extend radially outwardly from the body portion to interact with the electromagnetic means.
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