Fuel injector
US4311277A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 1979 |
| Grant date | Jan 19, 1982 |
| Priority date | — |
| Expiry date | Jun 20, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23D17/002
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A dual fuel injector has a body in which first, second and, optionally, third flow passages are provided. The first passage feeds liquid fuel to a first ring of outlet orifices which discharge into the second passage. The second passage leads to a second ring of outlet orifices which are aligned with orifices in the first ring and which are of greater cross-sectional area than the latter. The orifices of both rings lie on axes which are disposed at an acute angle (e.g. 45.degree.) to the longitudinal axis of the body so that a conical discharge of fuel and air is obtained in use. The second passage is an air passage when liquid fuel is being injected and may be an air passage or a gaseous fuel passage when the optional third passage is employed and the injector is in its gaseous fuel injection mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.