IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0551283
(2004-03-26)
|
등록번호 |
US-7726524
(2010-06-22)
|
우선권정보 |
FR-03 03784(2003-03-27) |
국제출원번호 |
PCT/FR2004/000779
(2004-03-26)
|
§371/§102 date |
20060728
(20060728)
|
국제공개번호 |
WO04/090401
(2004-10-21)
|
발명자
/ 주소 |
- Merabet, Djamel
- Prus, Eric
- Ballu, Patrick
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
9 |
초록
▼
The invention relates to a valve (1), comprising a body (2), within which a needle (3) moves, which can rest with sealing against a seat (23), fixed to the body (2). The needle (3) is magnetically coupled to an actuator body (5), across a closed and a magnetic chamber (4) provided with several magne
The invention relates to a valve (1), comprising a body (2), within which a needle (3) moves, which can rest with sealing against a seat (23), fixed to the body (2). The needle (3) is magnetically coupled to an actuator body (5), across a closed and a magnetic chamber (4) provided with several magnets (52) between which magnetic bodies (53) are interspersed. The needle (3) has no magnets and is provided with ribs (36) made from a magnetic material. According to the invention, an improved magnetic coupling may be achieved, whereby the thickness and the relative separation of the ribs (36) are largely equal to the thickness (e53) and the relative separation (l52) of the magnetic bodies (53).
대표청구항
▼
The invention claimed is: 1. Valve comprising: a body; a seat fixedly joined to the body; and a needle capable of resting in a sealed manner against said seat, said needle being disposed inside said body and being movaile relative to said body, the needle being coupled magnetically, through a seale
The invention claimed is: 1. Valve comprising: a body; a seat fixedly joined to the body; and a needle capable of resting in a sealed manner against said seat, said needle being disposed inside said body and being movaile relative to said body, the needle being coupled magnetically, through a sealed and non-magnetic partition, to an actuating device equipped with several magnets between which magnetic bodies are interposed, wherein said needle does not have magnets and is equipped with ribs formed from a magnetic material, wherein said needle is of unitary, one-piece construction, and has an external radial surface provided with qrooves between, and delimiting, said ribs, and wherein said needle further comprises non-magnetic filling material in said grooves. 2. Valve according to claim 1, wherein the thickness of the ribs is substantially equal to the thickness of the magnetic bodies. 3. Valve according to claim 1, wherein the relative spacing of the ribs is substantially equal to, or corresponds substantially to, a multiple or a sub-multiple of the relative spacing of the magnetic bodies. 4. Valve according to claim 1, wherein the needle is covered with a layer of anti-corrosion material. 5. Valve according to claim 1, wherein of the actuating device are controlled pneumatically. 6. Valve according to claim 1, wherein the actuating device is controlled mechanically. 7. Valve according to claim 1, wherein the sealed partition is cylindrical, the needle being located inside the partition while the actuating device is arranged around the partition. 8. Valve according to claim 1, wherein the non-magnetic partition is flat overall and the ribs and the magnetic bodies are provided with means for guiding the needle in translation. 9. Valve according to claim 8, wherein the means for guiding the needle includes magnetic field concentration regions formed opposite one another, on the needle and on the actuating device, respectively, by the creation of cavities in opposing surfaces of the ribs and the magnetic bodies. 10. Valve according to claim 1, further comprising an element coupled magnetically to the actuating device and located outside the body, the element being mobile in translation between two positions in which it indicates an open state and a closed state, respectively, of the valve. 11. Valve according to claim 10, further comprising a sensor adapted to detect the movements of the element and to supply to a monitoring system a signal representative of the open or closed state of the valve. 12. Valve according to claim 10, wherein the body is provided with two marks corresponding to the closed state and the open state, respectively, of the valve, wherein the element is capable of masking selectively one of the marks while leaving the other mark visible, or vice versa, as a function of its position controlled by the movements of the actuating device. 13. Valve according to claim 12, further comprising a sensor adapted to detect the movements of the element and to supply to a monitoring system a signal representative of the open or closed state of the valve. 14. Installation for projecting coating product, comprising at least one projector and at least one source of coating product, wherein said installation comprises at least one valve according to claim 1, located in a line for supplying coating product or cleaning product to a discharge opening of the projector. 15. Installation according to claim 14, wherein the valve is integrated in the projector.
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