Electromagnetically actuatable valve
US5178362A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1991 |
| Grant date | Jan 12, 1993 |
| Priority date | — |
| Expiry date | Nov 13, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49421
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In electromagnetically actuatable valves having a core, surrounded by a magnet coil, and an armature that acts upon a valve closing body by means of a connecting tube, the connection between the connecting tube and the hard valve closing body is embodied by first providing the metallically harder closing body with a first spot weld, and after that this first spot weld is welded to the metallically softer connecting tube by means of a second spot weld, until the at least partly encompassing weld seam is formed between the valve closing body and the connecting tube, the weld seam assuring a safe and reliable connection. This embodiment of the valve is particularly well suited for injection valves of fuel injection systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.