发明公开
- 专利标题: Solenoid valve control circuit
- 专利标题(中): Steuerschaltungfürein Magnetventil
-
申请号: EP03010837.7申请日: 2000-07-03
-
公开(公告)号: EP1344967A2公开(公告)日: 2003-09-17
- 发明人: The designation of the inventor has not yet been filed
- 申请人: Mac Valves Inc.
- 申请人地址: 30569 Beck Road, P.O. Box 111 Wixom, Michigan 48393 US
- 专利权人: Mac Valves Inc.
- 当前专利权人: Mac Valves Inc.
- 当前专利权人地址: 30569 Beck Road, P.O. Box 111 Wixom, Michigan 48393 US
- 代理机构: Strachan, Victoria Jane
- 优先权: US347043 19990702
- 主分类号: F16K31/08
- IPC分类号: F16K31/08
摘要:
A self-latching solenoid valve assembly including a valve body having a pressurized air supply inlet port for communicating with a source of pressurized air and at least one cylinder port. A valve member is supported in the valve body so as to be movable between predetermined positions to selectively direct pressurized air from the inlet port to at least one cylinder port. A biasing member is employed to move the valve member in one direction and a solenoid assembly (14) is used to move the valve member in an opposite direction. The solenoid assembly (14) includes a housing with a solenoid coil (56) supported therein and a fixed ferromagnetic pole piece having a passage extending therethrough with a pushpin (84) movably supported in the passage. A ferromagnetic latch is also supported by the housing and spaced from the pole piece. A permanent magnet is disposed between the latch and the pole piece. The magnet is movable toward the pole piece under the influence of an electromagnetic flux generated by a pulse of current generated through the coil (56) in one direction thereby driving the permanent magnet against the pushpin (84) to move the valve member to one predetermined position. In addition, the permanent magnet is also movable away from the pole piece and toward the latch under the influence of an electromagnetic flux generated by a pulse of current flowing through the coil (56) in an opposite direction. When this occurs, the biasing member moves the valve member to another predetermined position. A control circuit (70) for changing the direction of the current through the coil (56) is also disclosed.
公开/授权文献
- EP1344967A3 Solenoid valve control circuit 公开/授权日:2004-03-31
信息查询