| 摘要 |
<p>The cylindrical element has a cylindrical extension at its front end axially movable in a cylindrical cage with at least three bars. Liquid flows axially toward the conical extension and between it and the cage ring into widening space between cage bars. The cylindrical element movement caused by flowing liquid forces is a measure for the liquid flow. The floating element rear end tapers off conically and has an axis symmetrical chamber (26) which communicates with the outside through three holes near the back end, and through a hole (29) at the end. The removable cage (14) inner surface is conical, widening in the flow direction.</p> |
