Electrolysis Apparatus and a Method of Hydrodynamic Cavitation Protection.

Abstract

The patent application discloses a method and apparatus for protecting the surfaces of hydrodynamic members subjected to a cavitating fluid environment such as seawater. A conductive metal insert is affixed to and electrically insulated from the surface of the member where cavitation damage is most likely ot occur. A variable d-c voltage is connected between the metal insert (cathode) and the hydrodynamic member (anode). As the voltage is applied, a protective layer of hydrogen gas bubbles is formed over the conductive metal insert to thereby cushion the shock of the collapse of the cavitation voids.

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Document Details

Document Type
Technical Report
Publication Date
Sep 17, 1974
Accession Number
ADD001178

Entities

People

  • Earl Quandt
  • Kenneth Kasza

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Blades
  • Bubbles
  • Cavitation
  • Electrolysis
  • Films
  • Hydrogen
  • Inventions
  • Marine Propellers
  • Materials
  • Metals
  • Patent Applications
  • Propeller Blades
  • Propellers
  • Rings
  • Slip Rings
  • Stainless Steel
  • Thin Films

Readers

  • Electrical Engineering
  • Marine Propulsion Engineering and Naval Architecture
  • Surface Engineering/Surface Coating Technology.

Technology Areas

  • Microelectronics