Electrical method and apparatus for impelling the extruded ejection of high-velocity material jets

Weingart, Richard C

Title: Electrical method and apparatus for impelling the extruded ejection of high-velocity material jets

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Abstract

A method and apparatus (10, 40) for producing high-velocity material jets provided. An electric current pulse generator (14, 42) is attached to an end of a coaxial two-conductor transmission line (16, 44) having an outer cylindrical conductor (18), an inner cylindrical conductor (20), and a solid plastic or ceramic insulator (21) therebetween. A coxial, thin-walled metal structure (22, 30) is conductively joined to the two conductors (18, 20) of the transmission line (16, 44). An electrical current pulse applies magnetic pressure to and possibly explosively vaporizes metal structure (22), thereby collapsing it and impelling the extruded ejection of a high-velocity material jet therefrom. The jet is comprised of the metal of the structure (22), together with the material that comprises any covering layers (32, 34) disposed on the structure. An electric current pulse generator of the explosively driven magnetic flux compression type or variety (42) may be advantageously used in the practice of this invention.

Inventors:

Weingart, Richard C ^[1]

Livermore, CA

Issue Date:: 1989-01-01

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

OSTI Identifier:: 867218

Patent Number(s):: 4888522

Assignee:: United States of America as represented by Department of Energy (Washington, DC)

Patent Classifications (CPCs):: H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE

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H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
H05H1/52 - using exploding wires or spark gaps

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DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: electrical; method; apparatus; impelling; extruded; ejection; high-velocity; material; jets; 10; 40; producing; provided; electric; current; pulse; generator; 14; 42; attached; coaxial; two-conductor; transmission; line; 16; 44; outer; cylindrical; conductor; 18; inner; 20; solid; plastic; ceramic; insulator; 21; therebetween; coxial; thin-walled; metal; structure; 22; 30; conductively; joined; conductors; applies; magnetic; pressure; possibly; explosively; vaporizes; collapsing; jet; therefrom; comprised; comprises; covering; layers; 32; 34; disposed; driven; flux; compression; type; variety; advantageously; practice; ceramic insulator; flux compression; current pulse; electric current; pulse generator; magnetic flux; transmission line; electrical current; outer cylindrical; inner cylindrical; metal structure; high-velocity material; thin-walled metal; magnetic pressure; material jets; /315/250/

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                    Weingart, Richard C. Electrical method and apparatus for impelling the extruded ejection of high-velocity material jets.  United States: N. p., 1989. 
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                    Weingart, Richard C. Electrical method and apparatus for impelling the extruded ejection of high-velocity material jets.  United States.

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                    Weingart, Richard C. Sun .  
        "Electrical method and apparatus for impelling the extruded ejection of high-velocity material jets".  United States.  https://www.osti.gov/servlets/purl/867218.

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@article{osti_867218,

  title        = {Electrical method and apparatus for impelling the extruded ejection of high-velocity material jets},

  author       = {Weingart, Richard C},

  abstractNote = {A method and apparatus (10, 40) for producing high-velocity material jets provided. An electric current pulse generator (14, 42) is attached to an end of a coaxial two-conductor transmission line (16, 44) having an outer cylindrical conductor (18), an inner cylindrical conductor (20), and a solid plastic or ceramic insulator (21) therebetween. A coxial, thin-walled metal structure (22, 30) is conductively joined to the two conductors (18, 20) of the transmission line (16, 44). An electrical current pulse applies magnetic pressure to and possibly explosively vaporizes metal structure (22), thereby collapsing it and impelling the extruded ejection of a high-velocity material jet therefrom. The jet is comprised of the metal of the structure (22), together with the material that comprises any covering layers (32, 34) disposed on the structure. An electric current pulse generator of the explosively driven magnetic flux compression type or variety (42) may be advantageously used in the practice of this invention.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1989},

  month        = {1}

}

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