公开(公告)号：US06280148B1

公开(公告)日：2001-08-28

申请号：US09367664

申请日：1999-08-17

Applicant: Roland Zengerle ,  Michael Freygang ,  Manfred Stehr ,  Stephan Messner ,  Matthias Ashauer ,  Rainer Rossberg

Inventor： Roland Zengerle ,  Michael Freygang ,  Manfred Stehr ,  Stephan Messner ,  Matthias Ashauer ,  Rainer Rossberg

IPC: F04B4906

CPC classification number: H01L41/00 ,  B01J2219/00351 ,  B01J2219/00364 ,  B01J2219/00378 ,  B01L3/0265 ,  B01L3/0268 ,  B01L3/5027 ,  B01L2200/146 ,  B01L2300/0816 ,  B01L2300/0887 ,  B01L2400/0406 ,  B01L2400/0439 ,  B01L2400/0487 ,  B05B9/0413 ,  C40B60/14 ,  F04B19/006 ,  F04B43/046 ,  F04B2201/0201 ,  G01F11/08 ,  G01N35/00 ,  G01N2035/00237

Abstract: A microdosing device comprises a pressure chamber which is at least partly delimited by a displacer, an actuating device for actuating the displacer, the volume of the pressure chamber being adapted to be changed by actuating the displacer, a media reservoir which is in fluid comunication with the pressure chamber via a first fluid line, and an outlet opening which is in fluid communication with the pressure chamber via a second fluid line. The microdosing device additionally comprises a means for detecting the respective position of the displacer and a control means which is connected to the actuating device and to the means for detecting the position of the displacer, said control means controlling the actuating device on the basis of the detected position of the displacer or on the basis of displacer positions detected during at least one preceding dosing cycle so as to cause the discharge of a defined volume of fluid from the outlet opening. The control means comprises means for controlling the actuating device with a signal of low edge steepness so as to cause the displacer to move from a first position to a predetermined second position, the second position of the displacer defining a larger volume of the pressure chamber than the first position. In addition, the control means comprises means for controlling the actuating device with a signal of high edge steepness so as to cause the displacer to move from the second position to the first position for discharging in this way a defined volume of fluid from the outlet opening.

Abstract translation: 微量饮料装置包括至少部分地由置换器限定的压力室，用于致动置换器的致动装置，压力室的体积适于通过致动置换器来改变;压力室的体积可以通过流体通过与 经由第一流体管线的压力室和通过第二流体管线与压力室流体连通的出口开口。 微量计量装置还包括用于检测置换器的相应位置的装置和连接到致动装置的控制装置和用于检测置换器的位置的装置，所述控制装置基于 检测置换器的位置，或者基于在至少一个以前的给料循环期间检测到的置换器位置，以便引起从出口开口排出限定体积的流体。 控制装置包括用于利用低边缘陡度的信号来控制致动装置的装置，以便使置换器从第一位置移动到预定的第二位置，置换器的第二位置限定压力室的体积更大， 第一名。 此外，控制装置包括用于利用具有高边缘陡度的信号来控制致动装置的装置，以便使置换器从第二位置移动到第一位置，以这种方式从出口开口排出限定体积的流体 。