| 摘要 |
<p>An electromagnetically actuated valve (10) is disclosed having an upper electromagnetic element (32) and a lower electromagnetic element (34), each having a toroidal or annular configuration with a U-shaped cross section and in mirrored relationship with each other. The elements define a central chamber (26) and a central channel (30). A core element (16) has an annular horizontal cross section and is disposed intermediate the upper (32) and lower (34) electromagnetic elements. A connecting plate (18) connects the core element (16) to a valve stem (22). A spring (20) biases the core element (16) to a neutral position. Applying current to the upper electromagnetic element (32) closes the valve and interrupting the current to the upper electromagnetic element (32) and applying current to the lower electromagnetic element (34) opens the valve.</p> |
