The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 2014
Filed:
Aug. 21, 2009
Christian Rasmussen, Tjele, DK;
Christian Rasmussen, Tjele, DK;
Grundfos Management A/S, Bjerringbro, DK;
Abstract
The invention relates to a forward osmosis (FO) device () with a semipermeable membrane () capable of performing forward osmosis between a first (F) and a second fluid (F). In a first fluid confinement (), a first swirl generator () is positioned and in a second fluid confinement () positioned on the other second side of the membrane, a second swirl generator () is positioned. The swirl generators are arranged to create a circular flow pattern (S, S) for the first and the second fluid, respectively, wherein the first () and second () swirl generator, upon engagement, are arranged to create a circular flow pattern for the first and the second fluid, respectively, by rotating motion (RA, RA). The invention is advantageous by obtaining FO device that is capable of reducing the concentration polarization (CP) near the membrane by creating a cross flow velocity over the membrane and facilitate control of the cross flow velocity independent of the through flow of the membrane. The external concentration polarization can thereby be controlled and further reduced.