Rheinmetall W & M Gmbh

Other

Tzn Forschungs- Und Entwicklungszentrum Unterluss Gmbh

Rheinmetall Industrie Aktiengesellschaft

Alexei Voronov

Helmut F Neff

Thomas Weise

Gert Schlenkert

Hans-Karl Haak

Dirk Kilfitt

A disk-shaped propellant module ( ) for a propellant charge ( ), which can be composed of several modules of this type. To ensure a uniform and symmetrical ignition of the propellant charge ( ) for a cartridge with increased charge density (>1.2 g/cm ), the propellant module ( ) is provided with at least three axially extending ignition channels ( ), uniformly distributed over a partial circle, and at least three radial ignition channels ( ) that extend from the inside or interior of the propellant module ( ) to its outer edge surface ( ). The center of the circle for the axial ignition channels ( ) is positioned on the central axis ( ) for the propellant module ( ) and each of the radial ignition channels ( ) intersects with at least one of the axial ignition channels ( ).

Disk-shaped propellant module

A cartridge with a propellant case ( ) that contains a propellant charge ( ) and an electrothermal ignition device, wherein several ignition channels ( ) are provided in the charge ( ), and extend axial-symmetrical in the direction of longitudinal axis ( ) of cartridge ( ), with each channel comprising a propellant tube ( ) and an electrically conducting layer ( ). To achieve a uniform and symmetrical ignition of the cartridge ( ) in the chamber of the respective weapon, electric arcs ( ) that form during the ignition operation in the ignition channels ( ), are decoupled in that the electrically conducting layer ( ) is composed of successively connected rhombi or other shapes (circles, ovals, etc.) that electrically function as decoupling resistances. When current flows through such a structure, the current bridges ( ) arranged in the current-flow direction between the individual rhombi ( ) etc. initially break apart explosively. Electric arcs ( ) then are formed at these locations and are decoupled by the decoupling resistances ( ). Continued current flow causes more and more of the decoupling elements ( ) to erode, so that the electric arcs ( ) become longer and longer.

Cartridge

An apparatus for coating the inside of a metal tube with an electrically conducting material, including first and second electrode assemblies supported within the tube. The axially spaced electrode assemblies each include a main electrode. The main electrode of the first electrode assembly is supported on the inner tube face via an insulating member. The second electrode assembly has an auxiliary electrode connected to the main electrode of the second electrode assembly and to the tube. A wire is secured to and extending between the main electrodes. A current source is connected to the main electrode of the first electrode assembly and the main electrode of the second electrode assembly through the tube and the auxiliary electrode for passing an electric current pulse through the wire for causing an explosive vaporization thereof, whereby particles of the vaporized material form a layer on the inner tube face.

Apparatus for internally coating a metal tube

A method of coating an inner face of a metal tube with an electrically conducting coating material includes the steps of positioning a wire, made of the coating material, generally axially in an interior of the tube, along the inner face thereof; and passing an electric current pulse of sufficient intensity through the wire to cause an explosive vaporization thereof, whereby particles of the vaporized material impinge on the inner face of the metal tube and form a layer thereon.

Method of internally coating a metal tube by explosive evaporation of the coating substance

A method of destroying hidden land mines includes steps of providing a hole in the ground of a mine-contaminated area; placing into the hole a device which generates a shock wave by wire explosion; connecting the device to a switchable current source; and applying a current pulse from the current source to the device for causing a wire explosion thereof to generate a shock wave in the ground for destroying mines hidden in the area within the effective range of the shock wave. The device has a plastic tube filled with a liquid; a wire passing through the liquid; and electrodes disposed at opposite ends of the tube. The wire is connected to the electrodes, and the electrodes are connectable to a current source for applying a current pulse from the current source to the wire to effect explosion thereof for generating the shock wave.

Growing community of inventors

Unterlüss, Germany

Alexei Voronov