IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0587736
(2009-10-13)
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등록번호 |
US-8286937
(2012-10-16)
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우선권정보 |
DE-10 2008 051 759 (2008-10-15) |
발명자
/ 주소 |
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출원인 / 주소 |
|
대리인 / 주소 |
Emch, Schaffer, Schaub & Porcello Co., L.P.A.
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인용정보 |
피인용 횟수 :
1 인용 특허 :
6 |
초록
▼
The presented valve (1) is based on two axially adjustable sleeve-shaped valve seat rings (14, 36) that are associated with locking arrangements in the form of annular armature plates (22, 35) and associate holding coils (24, 36). The valve closure member (39) can be variably adjusted via a position
The presented valve (1) is based on two axially adjustable sleeve-shaped valve seat rings (14, 36) that are associated with locking arrangements in the form of annular armature plates (22, 35) and associate holding coils (24, 36). The valve closure member (39) can be variably adjusted via a position adjustment drive. Said valve closure member has a double function. On the one hand, it acts to move the valve seat rings (14, 26) into locking position and, on the other hand, it acts to control the gas flow.
대표청구항
▼
1. A valve (1) comprising a tubular housing (2) extending along an axis; a first valve seat ring (14) extending along said axis in said housing and movable in axial direction;a second valve seat ring (26) encircling said first valve seat ring and movable in axial direction;a valve closure member (39
1. A valve (1) comprising a tubular housing (2) extending along an axis; a first valve seat ring (14) extending along said axis in said housing and movable in axial direction;a second valve seat ring (26) encircling said first valve seat ring and movable in axial direction;a valve closure member (39) axially movable toward and away from the valve seat rings (14, 26) to close and open said valve seat rings (14, 26);means for adjusting the axial position of the valve closure member (39) in said housing; anda locking arrangement (22, 24, 35, 36) associated with the valve seat rings (14, 26) in order to selectively lock said valve seat rings in a prespecified position. 2. A valve in accordance with claim 1 wherein said means for adjusting the axial position of said valve closure member (39) includes a threaded spindle (42) secured to said valve closure member (39), a nut (46) threadedly engaged to said spindle and means for rotating said threaded nut. 3. A valve in accordance with claim 2 wherein said means for rotating said threaded nut comprises a worm gear engaged to teeth on said threaded nut and means for rotating said worm gear. 4. A valve in accordance with claim 3 wherein said worm gear extends outwardly of said housing and is connected to power means (54) outside the housing (2). 5. A valve in accordance with claim 1, characterized in that the locking arrangement (22, 24, 35, 36) comprises a magnetic coil (24), said coil being arranged in the tubular housing (2). 6. A valve in accordance with claim 1, characterized in that the valve seat ring (14) is associated with a biasing means (23) urging the valve seat ring (14) in the direction toward the valve closure member (39). 7. A valve in accordance with claim 1, characterized in that the valve closure member (39) is configured as a flow body. 8. A valve (1) comprising a tubular housing (2);a valve closure member (39) in said housing;a first valve seat ring (14) in said housing and movable in axial direction into and out of engagement with said valve closure member (39);a magnetic coil (24) in said housing for controlling movement of said valve seat ring (14) in one or more prespecified positions; anda second valve seat ring (26) arranged so as to be axially movable and concentrically arranged with respect to the first valve seat ring (14), whereby each valve seat ring (14, 26) is associated with one compression spring (23, 24), respectively, in order to bias the valve seat rings (14, 26) in the direction toward the valve closure member (39). 9. A valve in accordance with claim 8, characterized in that the valve seat rings (14, 26) are sealed relative to each other and delimit a center space where at least one pressure pick-off is provided (57). 10. A valve in accordance with claim 8, characterized in that the stroke of the valve seat rings (14, 26) corresponds at least to the extent of the stroke of the valve closure member (39). 11. A valve in accordance with claim 8, characterized in that a locking arrangement is provided to selectively lock said valve seat rings in a prespecified position. 12. A valve (1) comprising a tubular housing (2);a valve closure member (39) in said housing;a first valve seat ring (14) in said housing and movable in axial direction into and out of engagement with said valve closure member (39);a magnetic coil (24) in said housing for controlling movement of said valve seat ring (14) in one or more prespecified positions; andmeans for adjusting the axial position of said valve closure member (39) said adjusting means including a threaded spindle (42) secured to said valve closure member (39) a nut (46) threadedly engaged to said spindle and means for rotating said threaded nut. 13. A valve in accordance with claim 12 wherein said means for rotating said threaded nut comprises a worm gear engaged to teeth on said threaded nut and means for rotating said worm gear. 14. A valve in accordance with claim 13 wherein said worm gear extends outwardly of said housing and is connected to power means (54) outside the housing (2). 15. A valve in accordance with claim 11, characterized in that the locking arrangement (22, 24, 35, 36) comprises a magnetic coil (24), said coil being arranged in the tubular housing (2). 16. A method for releasing and blocking a fluid flow by means of a valve (1) having a housing (2) extending along an axis, a valve closure member (39) and a valve seat ring (14) in said housing, comprising the steps of providing a spring (23);urging said valve seat ring (14), under the effect of said spring (23), into sealing engagement with the valve closure member (39),moving the valve closure member (39) in a first direction (49) in order to shift the valve seat ring (14) against the force of said spring (23) until the valve seat ring (14) reaches a predetermined position engaging an armature ring (22) to said valve seat ring;providing a back-up ring (7) for limiting the axial movement of said armature ring (22);applying a current to said armature ring (22) when it is engaged to said back-up ring (7) to cause said armature ring (22) to adhere to said back-up ring (7) with a force great enough to prevent said spring (23) from disengaging said armature ring (22) from said back-up ring (7) in order to hold the valve seat ring (14) in a locked position; andadjusting the valve closure member (39) by moving it in a second direction (50), said second direction being opposite the first direction (49), away from the locked valve seat ring (14).
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