| 摘要 |
Apparatus for accurately dosing fluids of varying viscosity, especially highly viscous liquids, including a valve channel adapted to be vertically arranged and secured at one end to the inverted open end of a container for the liquid, a closure portion positioned within said valve channel including a ferrite core secured thereto, means for guiding the closure element vertically within the valve channel, a closure member secured to the bottom of the closure portion adapted to close the valve channel due to the weight of the closure element, a conveying element secured to the closure element for rotation therewith and an electromagnetic device surrounding the closure portion for simultaneously producing vertical and rotational movement of the closure portion and at least rotation of the conveying element whereby on energizing the magnetic device the closure portion is raised to open the valve channel to allow fluid flow through the valve channel and the closure portion is rotated along with the conveying element to aid in movement of the fluid through the valve channel.
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