METHOD AND APPARATUS FOR THE PULSATION-FREE VOLUMETRIC DELIVERY OF FLUIDS AND SUSPENSIONS

WIPO Patent Application WO/2010/118740

A3

The invention relates to the pulsation-free volumetric delivery of fluids and suspensions and is suited both for large laboratory applications, such as the recirculation of cell suspensions in closed fermenters, and for the pulsation-free and continuous delivery of very small quantities. It is the aim of the invention to enable completely pulsation-free volumetric delivery of fluids and suspensions using a simple technical solution. The aim is achieved according to the invention by a method and an apparatus. By way of pump chambers (9) to (13) consecutively arranged in the flow direction, wherein the center pump chamber (11) has a volume that is three times as large as that of any of the other pump chambers (9), (10), (12), (13), an intermediate storage of a partial quantity of the medium to be transported is achieved. By phase-shifted actuation (8) of the pump chambers (9) to (13), a defined volume is taken in at the inlet of the apparatus and a defined volume is put out at the outlet during each phase of the pump cycle.

WO/2017/210492

SYSTEMS AND METHODS FOR MANAGING NOISE IN COMPACT HIGH SPEED AND HIGH FORCE HYDRAULIC ACTUATORS

SCHIMMELPFENNIG MICHAEL (DE)
FELLER KARL-HEINZ (DE)

PCT/DE2010/050019

February 16, 2012

April 14, 2010

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FACHHOCHSCHULE JENA (DE)
SCHIMMELPFENNIG MICHAEL (DE)
FELLER KARL-HEINZ (DE)

F04B11/00; A61M5/142; F04B13/00; F04B43/08

WO2004076859A2

2004-09-10

EP0409001A1	1991-01-23
DE10118086A1	2002-07-11
DE102008017346A1	2008-10-30
US5217355A	1993-06-08
DE19509242A1	1996-09-19

OEHMKE, Volker et al. (Neugasse 13, Jena, DE)

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