Plasma torch for noncooled injection of plasmagene gas
US5262616A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1992 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Feb 5, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/3431
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention concerns a plasma torch of the type including: PA1 two tubular and axially spaced coaxial electrodes (5 and 6), each electrode being arranged in a support (3 and 4) in which a cooling circuit (8 and 9) of the corresponding electrode is fitted; and PA1 a passageway for injecting a plasmagene gas between said electrodes, said passageway including a revolution piece (17) coaxial with said electrodes and defining with the latter and their supports a chamber (18) into which the plasmagene gas is injected via transverse orifices (17B) provided in the piece. According to the invention, the revolution piece (17) is not provided with internal cooling means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.