Electroosmotic pump and fluid-pumping system comprising the same

Patent metadata

Field	Value
Publication number	US-11859602-B2
Application number	US-202318169107-A
Country	US
Kind code	B2
Filing date	Feb 14, 2023
Priority date	Jun 28, 2016
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

Provided are an electroosmotic pump, including: a membrane; a first electrode which is provided on one surface of the membrane, including a porous support including an insulator and an electrochemical reaction material formed on the porous support; and a second electrode which is provided on the other surface of the membrane, including a porous support including an insulator and an electrochemical reaction material formed on the porous support, and a fluid-pumping system including the electroosmotic pump.

First claim

What is claimed is:

1. An electroosmotic pump, comprising:
a first fluid pathway part and a second fluid pathway part;
a membrane having a porous structure and being between the first fluid pathway part and the second fluid pathway part;
a first electrode having porosity, being between the first fluid pathway part and the second fluid pathway part and disposed on the membrane, the first electrode comprising a first insulating porous support and a first electrochemical reaction material; and
a second electrode having porosity, being between the first fluid pathway part and the second fluid pathway part and disposed on the membrane, the second electrode comprising a second insulating porous support and a second electrochemical reaction material,
wherein the first electrochemical reaction material is substantially uniformly distributed on the first insulating porous support,
wherein the second electrochemical reaction material is substantially uniformly distributed on the second insulating porous support,
wherein fluid is in the first and second fluid pathway parts, the membrane and the first and second electrodes, and
wherein one or more of the first and second fluid pathway parts have a respective opening formed on any one space or both spaces on either side of the membrane and the first and second electrodes, and thereby provides a pressure by the movement of the fluid to an outside.

2. The electroosmotic pump of claim 1 , wherein one or both of the first and second insulating porous supports comprise an electrically insulating ceramic, an electrically insulating polymer resin, an electrically insulating glass, or a combination thereof.

3. The electroosmotic pump of claim 2 , wherein the electrically insulating ceramic comprises rockwool, gypsum, ceramic, cement, or a combination thereof.

4. The electroosmotic pump of claim 2 , wherein the electrically insulating polymer resin comprises: a synthetic fiber selected from the group consisting of polypropylene, polyethylene terephthalate, polyacrylonitrile, or a combination thereof; a natural fiber selected from the group consisting of wool, cotton, or a combination thereof; a sponge; a porous material derived from a biological organism; or a combination thereof.

5. The electroosmotic pump of claim 2 , wherein the electrically insulating glass comprises glass wool, glass frit, porous glass, or a combination thereof.

6. The electroosmotic pump of claim 1 , wherein one or both of the first and second insulating porous supports are in the form of a non-woven fabric, a woven fabric, sponge, or a combination thereof.

7. The electroosmotic pump of claim 1 , wherein one or both of the first and second insulating porous supports have pores having a size of 0.1 μm to 500 μm.

8. The electroosmotic pump of claim 1 , wherein one or both of the first and second insulting porous supports have a porosity of 5% to 95%.

9. The electroosmotic pump of claim 1 , wherein one or both of the first and second electrochemical reaction materials comprise silver/silver oxide, silver/silver chloride, or a combination thereof.

10. A fluid-pumping system comprising the electroosmotic pump according to claim 1 .

11. A fluid-pumping system comprising the electroosmotic pump according to claim 2 .

12. A fluid-pumping system comprising the electroosmotic pump according to claim 3 .

13. A fluid-pumping system comprising the electroosmotic pump according to claim 4 .

14. A fluid-pumping system comprising the electroosmotic pump according to claim 5 .

15. A fluid-pumping system comprising the electroosmotic pump according to claim 6 .

16. A fluid-pumping system comprising the electroosmotic pump according to claim 7 .

17. A fluid-pumping system comprising the electroosmotic pump according to claim 8 .

18. A fluid-pumping system comprising the electroosmotic pump according to claim 9 .

Assignees

• Eoflow Co Ltd

Inventors

• Kim Jesse Jaejin
• Song Yongchul

Classifications

• F04B19/006 Primary

  Micropumps (F04B43/043 and F04B43/095 take precedence) · CPC title

• F04B19/00 Primary

  Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00 · CPC title

• F04B43/06 Primary

  Pumps having fluid drive · CPC title

• F03G7/04

  using pressure differences or thermal differences occurring in nature (F03G7/06 takes precedence) · CPC title

• F05B2280/2004

  Ceramics; Oxides · CPC title