| 摘要 |
<p>The valve (1) has a fixed magnetic core (3) arranged inside an electric coil (2), and a movable core (13) arranged outside the coil and bearing a valve gasket. A flat return spring (15) is provided to stress the movable core into a rest position, where the stiffness of the flat spring is variable, and the flat spring bears without embedding on corresponding surfaces of the solenoid valve. The flat spring includes a central ring and a peripheral ring, where the central and peripheral rings are linked by flexible arms having flexing portions and twisting portions.</p> |
