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.:

US 12268991 B1

Date of Patent:

Apr. 08, 2025

Filed:

Apr. 29, 2024

Reverse osmosis system

Applicant:

Danfoss A/s, Nordborg, DK;

Inventors:

Lars Bjarne Hilbrecht, Sommersted, DK;

Georg Herborg Enevoldsen, Nordborg, DK;

Assignee:

DANFOSS A/S, Nordborg, DK;

Attorney:

McCormick, Paulding & Huber PLLC

Primary Examiner:

Bradley R Spies

Int. Cl.

CPC ...

B01D 61/02 (2006.01); B01D 61/06 (2006.01); B01D 61/08 (2006.01); B01D 61/12 (2006.01); B01D 61/58 (2006.01);

U.S. Cl.

CPC ...

B01D 61/06 (2013.01); B01D 61/025 (2013.01); B01D 61/026 (2022.08); B01D 61/08 (2013.01); B01D 61/12 (2013.01); B01D 61/58 (2013.01); B01D 2313/243 (2013.01); B01D 2313/246 (2013.01); B01D 2317/022 (2013.01);

Abstract

A reverse osmosis () system having a first membrane unit () and at least a second membrane unit (), the membrane units () forming a chain of membrane units, the first membrane unit () having a first membrane () separating a first feed chamber () and a first permeate chamber (), a first inlet () connected to the first feed chamber (), a first permeate outlet () connected to the first permeate chamber (), and a first concentrate outlet () connected to the first feed chamber (), the second membrane unit () having a second membrane () separating a second feed chamber () and a second permeate chamber (), a second inlet () connected to the second feed chamber (), a second permeate outlet () connected to the second permeate chamber (), and a second concentrate outlet () connected to the second feed chamber (), wherein the concentrate outlet () of a membrane unit () in the chain of membrane units is connected to an inlet () of a following membrane unit () and a concentrate outlet () of at least one membrane unit () downstream the first membrane unit () in the chain of membrane units is connected to a hydraulic motor (). In such a system the energy consumption should be optimized. To this end the hydraulic motor () is operatively connected to a first electric machine ().

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