Engine driven welder with field current boost
US6528765B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2001 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Dec 19, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/1043
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for a generator driven CV welding power supply includes a generator driven by an engine, and a CV electronic field controller. The generator includes a field winding and a welding output winding. The electronic field controller is connected to the field winding and has an engine feedback input. The controller also has a voltage boost circuit responsive to the engine RPM (or engine speed command signal). A wire feeder includes a motor powered by the generator output, and the boosted field current helps start the wire feeder when the engine is idling. The speed of the engine is reduced when there is no welding arc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.