Patent ID: 7135653

Claim:
A multiphase alternating current plasma generator, comprising; an electrode unit comprising fixed electrodes, plasma injector that introduces an ionized stream into area of minimum convergence between the fixed electrodes, and a nozzle unit joint, wherein the electrode unit is joined with the nozzle unit to form a united electric discharge chamber; a multiphase transformer that is connected to a common low-voltage alternating current network, wherein each fixed electrode is fed from the multiphase transformer; a plurality of pneumatic feed rings that feed a plasma-forming gas from an external source into the electric discharge chamber, wherein the pneumatic feed rings comprise radial holes tangentially located along the walls of the electric discharge chamber so as to provide a boundary layer of plasma-forming gas along the chamber walls, wherein the temperature of the boundary layer is significantly lower than in the main plasma-forming gas stream along the chamber length; and a controller with monitoring circuits that ensures operation of the plasma generator include an emergency cut-off operation.