초록 ▼

A method and apparatus (10, 40) for producing high-velocity material jets is 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

A method and apparatus (10, 40) for producing high-velocity material jets is 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.

대표청구항 ▼

An apparatus for producing a high-velocity material jet, the apparatus adapted to be driven by an externally supplied electric current pulse, said apparatus comprising: a coaxial two-conductor transmission line that comprises an outer cylindrical conductor, an inner cylindrical conductor that has a

An apparatus for producing a high-velocity material jet, the apparatus adapted to be driven by an externally supplied electric current pulse, said apparatus comprising: a coaxial two-conductor transmission line that comprises an outer cylindrical conductor, an inner cylindrical conductor that has a common central axis therewith, and a solid plastic or ceramic insulator that completely fills the space between the inner cylindrical conductor and the outer cylindrical conductor, with the transmission line having a first end and a second end, and with the outer cylindrical conductor and the inner cylindrical conductor at the first end of the transmission line adapted to receive the externally supplied electric current pulse; and a thin-walled metal structure attached or bonded to the solid plastic or ceramic insulator and conductively joining the outer conductor to the inner conductor at the second end of the transmission line, with the metal structure axisymmetric with respect to the common central axis and having a cavity that opens inwardly toward the interior of the transmission line; whereby, when the externally supplied electric current pulse is received at the first end of the transmission line the metal structure collapses upon the cavity and impells the extruded ejection therefrom of said high-velocity material jet, with the jet comprised of a part of the metal that comprises the metal structure.