Device for metering fuel
US10704515B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2016 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Jul 25, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a device for metering two different liquid or gaseous fuels, comprising a nozzle element (4) in which a first pressure chamber (6) that can be filled with a first fuel is formed, wherein an outer nozzle needle (10) is received in the pressure chamber in a longitudinally movable manner. The outer nozzle needle (10) is equipped with a second pressure chamber (12) which can be filled with a second fuel and in which an inner nozzle needle (15) is arranged in a longitudinally movable manner, said inner nozzle needle interacting with an inner nozzle seal (16) formed in the outer nozzle needle (10) in older to open and close at least one inner injection opening (17). Furthermore, at least one outer injection opening (13) is provided which can be connected to the first pressure chamber (6), the at least one outer injection opening (13) being formed in the outer nozzle needle (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.