Fuel injection nozzle
US4215821A · kind A · utility
17Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 2, 1978 |
| Grant date | Aug 5, 1980 |
| Priority date | — |
| Expiry date | Mar 2, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to fuel injection nozzles for internal combustion engines provided with a nozzle body one end of which includes plural fuel injection spray apertures with plural telescopable valve needles slidably positioned in the nozzle body and arranged to control feed to the spray apertures. At least one valve needle is controllable by an adjusting piston subjected to fuel supply and plural pressure chambers associated with the respective valve needles permits pressurized fuel supply to successively lift the valve needles independently of the other away from the spray apertures in the nozzle body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.