Optimizing an anti-coke film in an injector system for a gas turbine engine
US8276388B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2008 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Jul 4, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/323
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An annular expansion ring centered on a main axis and suitable for being mounted on a fuel injector coaxial with the ring is disclosed. The ring presents holes that are distributed around the main axis and open out into its upstream face to enable air to pass towards the zone that is downstream from the ring. The ring includes a conical annular groove that converges downstream, that is open downstream, and that has the holes opening out into the upstream portion thereof. The axis of each of the holes makes an angle relative to the main axis that is strictly greater than the angle between the generator line of the cone defining the annular groove and the main axis, such that the air exiting from the holes impacts against the inner wall of the annular groove, i.e. its wall that is closer to the main axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.