Control of the plasma cutting gas flow on the basis of the pressure of the pilot gas
US6335505B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 16, 2001 |
| Grant date | Jan 1, 2002 |
| Priority date | — |
| Expiry date | Feb 16, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K10/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to an automatic plant for cutting or welding by gas jet, especially by plasma jet, comprising a torch (T), a first pilot-gas line (L1), a second cutting- or welding-gas line (L2), control means (MP), first element (MR1) for adjusting the pressure of the pilot gas in the line (L1) and second element (MR2) for adjusting the pressure of the gas in the line (L2). The first adjustment element (MR1) are fitted in the line (L1) and controlled by control element (MP). A pneumatic control line (LP) pneumatically connects the line (L1) to the adjustment element (MR2) in order to enable the pressure of the cutting or welding gas to be adjusted in the second line (L2) on the basis of the pressure of the pilot gas in the line (L1), by acting on said second adjustment element (MR2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.