(WO9905400-A1)      The reactor (1) includes a reactor bed (2) for constraining a gaseous medium to be processed to flow through the reactor bed and a power supply (8) unit adapted to generate an apply a potential across the reactor bed which is sufficient to excite an electric discharge in the gaseous medium. The reactor bed and power supply are coaxially connected and enclosed in a earthed metal chamber (15) which both isolates the high voltage power supply and acts as a Faraday cage preventing the emission of electromagnetic radiation from the power supply or plasma. The reactor bed consists of a cylindrical body of gas permeable dielectric material contained between two electrodes (5,6), the outer one (6) being grounded and the inner one (5) being connected to the power supply. The power supply includes a generator driven by the engine via a constant speed drive system with a step-up transformer for generating a voltage of the order of tens of kilovolts at a frequency from 50Hz to 15kHz.    USE -   Reactor for vehicle exhaust system for purifying exhaust gases.    ADVANTAGE -   Enables reduction of engine exhaust emissions with increased safety.    (EP1012451-A1)      The reactor (1) includes a reactor bed (2) for constraining a gaseous medium to be processed to flow through the reactor bed and a power supply (8) unit adapted to generate an apply a potential across the reactor bed which is sufficient to excite an electric discharge in the gaseous medium. The reactor bed and power supply are coaxially connected and enclosed in a earthed metal chamber (15) which both isolates the high voltage power supply and acts as a Faraday cage preventing the emission of electromagnetic radiation from the power supply or plasma. The reactor bed consists of a cylindrical body of gas permeable dielectric material contained between two electrodes (5,6), the outer one (6) being grounded and the inner one (5) being connected to the power supply. The power supply includes a generator driven by the engine via a constant speed drive system with a step-up transformer for generating a voltage of the order of tens of kilovolts at a frequency from 50Hz to 15kHz.    USE -   Reactor for vehicle exhaust system for purifying exhaust gases.    ADVANTAGE -   Enables reduction of engine exhaust emissions with increased safety.    (CN1265174-A)      The reactor (1) includes a reactor bed (2) for constraining a gaseous medium to be processed to flow through the reactor bed and a power supply (8) unit adapted to generate an apply a potential across the reactor bed which is sufficient to excite an electric discharge in the gaseous medium. The reactor bed and power supply are coaxially connected and enclosed in a earthed metal chamber (15) which both isolates the high voltage power supply and acts as a Faraday cage preventing the emission of electromagnetic radiation from the power supply or plasma. The reactor bed consists of a cylindrical body of gas permeable dielectric material contained between two electrodes (5,6), the outer one (6) being grounded and the inner one (5) being connected to the power supply. The power supply includes a generator driven by the engine via a constant speed drive system with a step-up transformer for generating a voltage of the order of tens of kilovolts at a frequency from 50Hz to 15kHz.    USE -   Reactor for vehicle exhaust system for purifying exhaust gases.    ADVANTAGE -   Enables reduction of engine exhaust emissions with increased safety.    (GB2327841-B)      The reactor (1) includes a reactor bed (2) for constraining a gaseous medium to be processed to flow through the reactor bed and a power supply (8) unit adapted to generate an apply a potential across the reactor bed which is sufficient to excite an electric discharge in the gaseous medium. The reactor bed and power supply are coaxially connected and enclosed in a earthed metal chamber (15) which both isolates the high voltage power supply and acts as a Faraday cage preventing the emission of electromagnetic radiation from the power supply or plasma. The reactor bed consists of a cylindrical body of gas permeable dielectric material contained between two electrodes (5,6), the outer one (6) being grounded and the inner one (5) being connected to the power supply. The power supply includes a generator driven by the engine via a constant speed drive system with a step-up transformer for generating a voltage of the order of tens of kilovolts at a frequency from 50Hz to 15kHz.    USE -   Reactor for vehicle exhaust system for purifying exhaust gases.    ADVANTAGE -   Enables reduction of engine exhaust emissions with increased safety.    (JP2001511493-W)      The reactor (1) includes a reactor bed (2) for constraining a gaseous medium to be processed to flow through the reactor bed and a power supply (8) unit adapted to generate an apply a potential across the reactor bed which is sufficient to excite an electric discharge in the gaseous medium. The reactor bed and power supply are coaxially connected and enclosed in a earthed metal chamber (15) which both isolates the high voltage power supply and acts as a Faraday cage preventing the emission of electromagnetic radiation from the power supply or plasma. The reactor bed consists of a cylindrical body of gas permeable dielectric material contained between two electrodes (5,6), the outer one (6) being grounded and the inner one (5) being connected to the power supply. The power supply includes a generator driven by the engine via a constant speed drive system with a step-up transformer for generating a voltage of the order of tens of kilovolts at a frequency from 50Hz to 15kHz.    USE -   Reactor for vehicle exhaust system for purifying exhaust gases.    ADVANTAGE -   Enables reduction of engine exhaust emissions with increased safety.