Importance

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Abstract

A cartridge with a propellant case (4) that contains a propellant charge (3) and an electrothermal ignition device, wherein several ignition channels (9) are provided in the charge (3), and extend axial-symmetrical in the direction of longitudinal axis (8) of cartridge (1), with each channel comprising a propellant tube (10) and an electrically conducting layer (11). To achieve a uniform and symmetrical ignition of the cartridge (1) in the chamber of the respective weapon, electric arcs (21) that form during the ignition operation in the ignition channels (9), are decoupled in that the electrically conducting layer (11) 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 (20) arranged in the current-flow direction between the individual rhombi (15) etc. initially break apart explosively. Electric arcs (21) then are formed at these locations and are decoupled by the decoupling resistances (15). Continued current flow causes more and more of the decoupling elements (15) to erode, so that the electric arcs (21) become longer and longer.

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First Claim