Gce Holding, Ab

Jiri Polivka

Gareth Pemberton

Martin Roubicek

A cutting torch system comprises a cutting torch and a control system. The cutting torch includes a cutting oxygen channel for supplying cutting oxygen, a heating oxygen channel for supplying heating oxygen, a fuel gas channel for supplying fuel gas, an ignition mixer configured to selectively generate ignition gas from the heating oxygen and the fuel gas, and at least one sensor adapted for measuring a pressure and/or flow rate in one of the channels. The control system is adapted to maintain a temperature of the cutting torch to allow operation of the at least one sensor by adjusting a flow rate and/or a pressure of the gasses supplied to the cutting torch and/or by switching the cutting torch between an ignition mode and a cleaning and cooling mode.

Machine cutting torch system

A cutting torch comprises a cutting oxygen channel for supplying cutting oxygen, a heating oxygen channel for supplying heating oxygen, a fuel gas channel for supplying fuel gas, an ignition mixer configured to generate ignition gas from heating oxygen and fuel gas, a heating oxygen bypass channel originating from the heating oxygen channel and coupled to the ignition mixer, the heating oxygen bypass channel configured to supply heating oxygen to the ignition mixer, a fuel gas bypass channel originating from the fuel gas channel and coupled to the ignition mixer, the fuel gas bypass channel configured to supply fuel gas to the ignition mixer, and a fuel gas shut-off valve located on the fuel gas bypass channel. The shut-off valve is configured to turn off the supply of the fuel gas to the ignition mixer, and the ignition mixer supplies only heating oxygen to the cutting oxygen channel.

The present invention relates to a cutting torch system having an ignition mode and a cooling and cleaning mode. The cutting torch system comprises a cutting torch () having a cutting oxygen channel (), a heating oxygen channel (), and a fuel gas channel () The heating oxygen channel () and the fuel gas channel () are connected to an ignition mixer () and a fuel gas shut-off valve () is arranged upstream of the ignition mixer (). The fuel gas shut-off valve () is configured to be open in the ignition mode and closed in the cleaning and cooling mode. The ignition mixer () is adapted for mixing heating oxygen and fuel gas into an ignition gas and communicating the ignition gas into the cutting oxygen channel () in the ignition mode, and for communicating heating oxygen into the cutting oxygen channel () in the cleaning and cooling mode.

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Chotebor, Czechia

Jiri Polivka