Variable orifice electronically controlled common rail injector (VOECRRI)
US6439483B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 8, 2001 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Feb 8, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M61/042
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A unique variable orifice electronically controlled common variable rail injector (VOECCRI) for use in internal combustion engines characterized in part by the provision of injection ports or orifices along a tip portion of the nozzle housing having an internal cylindrical surface, and which cooperates in sealing and sliding relation with an internal hollow fuel needle having a cylindrical outer surface. In seating, the needle seats against a frusto-conical seat carried in the closure sac at the lower tip of the assembly, whereby leakage is controlled and precise opening of the injection orifices can be effected and programmed, as desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.