Aircraft jet engine comprising a system for reducing the noise generated by the ejection of the gases
US9151244B2 · kind B2 · utility
3Cited by
11References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 24, 2012 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Jul 19, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/025
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An aircraft jet engine comprising a nozzle to eject a gas stream, and a system for reducing the noise generated by the ejection of the gas stream. This system comprises several ducts which each are connected upstream to a recess divided into several chambers and open, downstream, at the outlet of nozzle. In this way, each duct ejects a fluid jet deriving from the recess and which interacts with the gas stream of the engine. The system also comprises a pulsation means for the fluid jet which brings about its ejection at the nozzle outlet and/or modulates its speed by varying the volume contained in the recess.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.