Fuel injectors
US6662565B2 · kind B2 · utility
9Cited by
9References
9Claims
0Family size
Inventors
Key dates
| Filing date | Oct 22, 2001 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Nov 20, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23D2900/11101
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A duplex fuel injector has concentric arrangement of an inner air swirler, an inner fuel injection port, an intermediate axial air filmer, a second air swirler, an outer fuel injection port and an outer air swirler. The intermediate air filmer produces a curtain of air separating an outer air and fuel spray from an inner air and fuel spray. The outer spray is used in a pilot combustion zone whereas the inner spray is used in a main combustion zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.