Non-Magnetic shell for welded fuel injector
US6024293A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 7, 1999 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Jun 7, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49073
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A solenoid actuated fuel injector includes an elongated ferromagnetic inlet tube having a major outside diameter portion and a reduced outside diameter portion and a step between the major and reduced outside diameter portions. A two-ended non-magnetic shell including an elongated tubular portion and a valve body shell engaging portion is fittable over the inlet tube reduced diameter portion and abuts the step in the inlet tube at one end. A coil is mountable around the elongated tubular portion of the non-magnetic shell and seated on the valve body shell engaging portion. The coil has a length shorter than the elongated tubular portion, at at least one circumferential point of the coil, allowing the inlet tube to be welded to the non-magnetic shell upon rotation relative to the coil without having to move the coil longitudinally.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.