公开(公告)号：US07905713B2

公开(公告)日：2011-03-15

申请号：US11732063

申请日：2007-04-02

申请人： Frank Hofmann ,  Egbert Junge

发明人： Frank Hofmann ,  Egbert Junge

IPC分类号： F04B23/04 ,  F04B41/06

CPC分类号： F04B13/02 ,  F04B9/113 ,  F04B9/1172 ,  F04B11/005

摘要： A method for operating a reciprocating positive displacement pump for the simultaneous low-pulsation discharge of a plurality of liquids, having for each liquid at least two pump chambers and displacement devices capable of movement therein, of which the one displacement device takes in liquid during the actual discharge phase of the other displacement device, and at the end of its intake stroke reverses its direction of movement, and, in a pre-compression phase, pre-compresses the liquid taken into the associated pump chamber and when a predeterminable pre-compression pressure has been achieved comes to a standstill, and remains at the standstill until the other displacement device has ended its liquid discharge, and, subsequent to this discharge, begins its own discharge. The method includes the steps of carrying out a pressure compensation during the subsequent discharge stroke preventing a pressure compensation between the individual pump chambers during the subsequent discharge stroke.

摘要翻译： 一种用于操作多个液体的同时低脉动排放的往复式容积式泵的方法，其具有用于每个液体的至少两个泵室和能够在其中移动的排量装置，其中一个位移装置在 另一个排量装置的实际排放阶段，并且在其进气冲程结束时反转其运动方向，并且在预压缩阶段预先压缩进入相关联的泵室的液体，并且当可预先确定的预压缩 压力已经达到静止状态，并保持在停止状态，直到其他排量装置已经结束其液体排放，并且在该排出之后开始其自身的排放。 该方法包括以下步骤：在随后的排放冲程期间执行压力补偿，防止在随后的排放冲程期间各个泵室之间的压力补偿。