Plasma cutting system with dual electrode plasma arc torch
US12138705B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 16, 2021 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Mar 26, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/44
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A plasma cutting system includes a power supply that outputs first and second plasma cutting currents. A torch is connected to the power supply and includes a first cathode that receives the first plasma cutting current, a first electrode and swirl ring, a second cathode that receives the second plasma cutting current, and a second electrode and swirl ring. The torch simultaneously generates a first and second plasma arcs from the electrodes. A gas controller is configured to separately control a flow of a first plasma gas to the first swirl ring and a flow of a second plasma gas flow to the second swirl ring. A torch actuator moves the torch during cutting, and includes a motor having a hollow shaft rotor for rotating the torch during cutting. A motion controller is operatively connected to the torch actuator to control movements of the torch during cutting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.