Cylinder-injection fuel injection valve
US6805103B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1999 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Apr 21, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention comprises a housing main body, a valve assembly disposed within the housing main body and provided with a valve main body having a large-diameter cylinder portion and a small-diameter cylinder portion, a valve seat having a fuel injection aperture secured within the valve main body and a needle valve for closing and opening the fuel injection aperture, a seal ring held between a cylinder head and a shoulder portion when the valve assembly is inserted into an insertion port in the cylinder for preventing combustion gas in the cylinder from leaking into the housing main body and a welded joint for securing the valve main body to the housing main body disposed between the side of the large-diameter cylinder portion and an engaging portion on the housing main body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.