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

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:
 [1]
  1. Livermore, CA
Issue Date:
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)
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/

Citation Formats

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