Supplying pressurized gas to plasma arc torch consumables and related systems and methods
US10413991B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2016 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Sep 10, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/3494
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In some aspects, a consumable for plasma arc torch that generates a predetermined plenum pressure from a substantially constant preset gas supply pressure from a plasma arc torch power supply, where the substantially constant preset gas supply being used to support plasma generation for a selection of multiple consumable components that each generate a different plasma plenum pressure for carrying out different processes, can include a proximal portion shaped to connect to the plasma arc torch and define a plasma gas inlet region; a distal portion shaped to define a gas outlet; and a pressure-matching stage comprising a pressure wall defining at least one flow path between the gas inlet region and the gas outlet configured to establish sufficient fixed pressure drop of a flow of gas flowing through the pressure-matching stage to reduce a pressure of the flow of gas to the predetermined plenum pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.