Patent ID: 7394171

Claim:
An electrical impulse generator for generating high impulse voltages or impulse currents, comprising: a flue formed by a support structure for at least one chargeable generator stage, which comprises a switching spark gap for generating electrical discharges in a gaseous medium and further electrical components for charging and/or discharging the generator stage, wherein the switching spark gap is arranged in the flue with a defined gas exchange for controlling and/or keeping constant a dielectric strength of the gaseous medium, wherein the support structure has a supporting function for the switching spark gap and for at least one of the electrical components of the at least one chargeable generator stage, and wherein the support structure comprises an insulating tube formed by a plurality of side walls so as to have a polygonal or round cross section, wherein an impulse capacitor, a series resistor, a parallel resistor and a charge resistor are arranged, for each generator stage, outside the flue on an outer side of the side walls of the insulating tube, wherein the flue further comprises contacts or lead-throughs into an interior of the flue, wherein each of the side walls comprises mounting holes for either mounting one of: the switching spark gap, the impulse capacitor, and two mounting arms for receiving the series resistor and the parallel resistor, and wherein two of the side walls of the insulating tube comprise projecting parts, wherein the impulse capacitor of each stage is arranged between said projecting parts, and wherein each projecting part has at least one support hole adjacent to said impulse capacitor.