Purge valve including an annular permanent magnet linear actuator
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16K-031/02
H01H-009/00
출원번호
US-0871525
(2004-06-21)
발명자
/ 주소
Weldon, Craig Andrew
Tatsu, Corey
Zdravkovic, Dale
Modien, Russell
Amirault, Giles R.
출원인 / 주소
Siemens VDO Automotive Inc.
인용정보
피인용 횟수 :
2인용 특허 :
13
초록▼
A purge valve includes an aperture, a member, and an actuator. The aperture defines a portion of a vapor flow path that extends between a first port that communicates vapor with a fuel vapor collection canister and a second port that communicates vapor with an intake manifold. The member is displace
A purge valve includes an aperture, a member, and an actuator. The aperture defines a portion of a vapor flow path that extends between a first port that communicates vapor with a fuel vapor collection canister and a second port that communicates vapor with an intake manifold. The member is displaced with respect to the aperture between a first configuration wherein the member occludes the aperture and a second configuration that permits vapor flow along the vapor flow path. The actuator displaces the member between the first and second configurations and includes an armature and a stator. The stator includes a winding that extends along an axis. And the armature, which is coupled to the member, surrounds the winding and includes a permanent magnet.
대표청구항▼
1. A purge valve for a fuel system including an intake manifold of an internal combustion engine and a fuel tank in vapor communication with a fuel vapor collection canister, the purge valve comprising:an aperture defining a portion of a vapor flow path extending between first and second ports, the
1. A purge valve for a fuel system including an intake manifold of an internal combustion engine and a fuel tank in vapor communication with a fuel vapor collection canister, the purge valve comprising:an aperture defining a portion of a vapor flow path extending between first and second ports, the first port communicates vapor with the fuel vapor collection canister, and the second port communicates vapor with the intake manifold; a member being displaced between first and second configurations with respect to the aperture, the member in the first configuration occludes the aperture and vapor flow along the vapor flow path is substantially prevented, and the member in the second configuration is spaced from the aperture and vapor flow along the vapor flow path is permitted; and an actuator displacing the member between the first and second configurations, the actuator including: a stator including a winding extending along an axis; and an armature being coupled to the member and being displaced along the axis, the armature surrounding the winding and including a permanent magnet. 2. The purge valve according to claim 1, wherein an electrical current being supplied to the winding displaces the armature along the axis, which displaces the member toward the second configuration.3. The purge valve according to claim 1, wherein at least one of the first and second ports comprises a sonic nozzle.4. The purge valve according to claim 1, wherein the member comprises a pintle that is received in and occludes the aperture in the first configuration.5. The purge valve according to claim 1, wherein the vapor flow path extends from the first port, around the stator and the armature, through the aperture when the member is in the second configuration, to the second port.6. The purge valve according to claim 1, wherein the actuator comprises a housing that is relatively fixed with respect to the stator.7. The purge valve according to claim 6, wherein the member in the first configuration is magnetically attracted to the stator.8. The purge valve according to claim 7, wherein the actuator consists essentially of the armature including the permanent magnet and the stator including the winding.9. The purge valve according to claim 6, wherein the housing defines at least one of the aperture, the first port, and the second port.10. The purge valve according to claim 1, wherein the permanent magnet is mechanically coupled to the member.11. The purge valve according to claim 10, wherein a non-ferrous support couples the permanent magnet to the member.12. The purge valve according to claim 1, wherein the stator comprises a ferrous bobbin extending along the axis between first and second flanges.13. The purge valve according to claim 12, wherein the ferrous bobbin comprises a shell extending along the axis between the first and second flanges, and the winding is positioned around the shell.14. The purge valve according to claim 13, wherein the permanent magnet surrounds the first flange.15. The purge valve according to claim 13, wherein the armature comprises a ferrous armature piece located between the member and the permanent magnet, the ferrous armature piece surrounds the winding.16. The purge valve according to claim 13, wherein the armature comprises a non-ferrous support coupling the ferrous armature piece to the member.17. The purge valve according to claim 12, wherein the second flange comprises at least one projection abutting the armature when the member is in the second configuration.
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이 특허에 인용된 특허 (13)
Ball Geoffrey R. ; Mar Craig ; Dietz Tim ; Katz Bob H. ; Wallace Dan, Advanced designs of floating mass transducers.
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