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Method for electrically producing dispersions of a nonconductive fluid in a conductive medium

United States Patent

5,762,775
June 9, 1998
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A method for use in electrically forming dispersions of a nonconducting fluid in a conductive medium that minimizes power consumption, gas generation, and sparking between the electrode of the nozzle and the conductive medium. The method utilizes a nozzle having a passageway, the wall of which serves as the nozzle electrode, for the transport of the nonconducting fluid into the conductive medium. A second passageway provides for the transport of a flowing low conductivity buffer fluid which results in a region of the low conductivity buffer fluid immediately adjacent the outlet from the first passageway to create the necessary protection from high current drain and sparking. An electrical potential difference applied between the nozzle electrode and an electrode in contact with the conductive medium causes formation of small droplets or bubbles of the nonconducting fluid within the conductive medium. A preferred embodiment has the first and second passageways arranged in a concentric configuration, with the outlet tip of the first passageway withdrawn into the second passageway.
DePaoli; David W. (Knoxville, TN), Tsouris; Constantinos (Oak Ridge, TN), Feng; James Q. (Fairport, NY)
Lockheed Martin Energy Systems, Inc. (Oak Ridge, TN)
08/ 751,180
November 15, 1996
This invention was made with Government support under Contract DE-AC05-840R21400 awarded by the United States Department of Energy to Lockheed Martin Energy Systems, Inc., and the U.S. Government has certain rights in this invention.