Electromagnetic fuel injection valve
US6578544B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 8, 2001 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Aug 11, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention provides an electromagnetic fuel injection valve having a simple and efficient constitution for enabling the jets 23 themselves from injection orifices to cool and wash off the nozzle body 13, and to suppress or remove carbon deposits that is produced and adhere to the injection orifices. In an electromagnetic fuel injection valve, which injects a high-pressure fuel as a flat-shaped spray 21 (fan spray) by causing the jets 23 to impinge on one another after being injected from at least a pair of injection orifices, the constitution is such that, with the aim of causing jets 23 to impinge, by controlling the pressure and direction of the jets 23, so that the jets 23 also go to, in addition to a normal injection direction which goes toward the direction of the combustion chamber 4, also to the opposite direction (upstream side) which goes toward the direction of the bottom surface of the combustion chamber side of the nozzle body 13, the jets 23 resulting from fuel injected from injection orifices impinge on one another, and a flat-shaped spray 21 is diffused in the direction of the combustion chamber 4, and, in addition, also diffused in the direction of the no…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.