Patent ID: 8941026
Filing Date: 2015-01-27
Classification: H05H

Abstract:
1. A nozzle for a liquid cooled plasma torch, comprising: a nozzle bore for the exit of a plasma gas beam at a nozzle tip; a first section of said nozzle, said first section having an outer surface that is essentially cylindrical; a second section of said nozzle connecting said first section to said nozzle tip, said second section having an outer surface that tapers essentially conically towards said nozzle tip; at least one liquid supply groove, said at least one liquid supply groove extending over a part of said first section and over said second section of said outer surface of said nozzle towards said nozzle tip; a single liquid return groove that is separate from said at least one liquid supply groove, said liquid return groove extending over said second section of said nozzle; and another groove which is connected to said at least one liquid supply groove is disposed in said first section of said nozzle.