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Abstract

A method and plasma-generating device for generating a plasma flame with a plasma combustion gas blown in a plasma flame direction from a plasma combustion chamber through a plasma flame opening. The plasma combustion chamber is arranged in a cavity resonator to which microwave energy is supplied and generates plasma. A swirling gas is blown into the plasma combustion chamber by a swirl-generating device to generate a swirling gas shell which surrounds the plasma flame and shields a plasma combustion chamber wall composed of a dielectric solid material. The plasma combustion chamber wall protrudes along the plasma flame direction beyond the cavity resonator in both directions and is fixed in a plasma combustion chamber wall holder a distance from the cavity resonator. The plasma combustion chamber wall holder has at least one holder cooling cavity through which a coolant flows.

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First Claim