FIELD: engines and pumps.
SUBSTANCE: invention relates to aviation, namely to nacelles of jet-turbine engines. A nacelle includes an element with a wall restricting a circulation passage of the main flow. The passage has a variable flow cross-section. The flow cross-section in the first zone of the passage is larger than that in the second zone. The first and the second zones of the passage are interconnected with a circulation pipeline of secondary flow. The wall of the nacelle element is at least partially covered with a sound-absorbing panel. The circulation pipeline of secondary flow passes through the sound-absorbing panel.
EFFECT: achieving reduction of pressure loss as a result of frictions on walls.
10 cl, 11 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SYSTEM OF CONNECTION BETWEEN INNER AND OUTER STRUCTURES OF TURBOJET ENGINE POD | 2008 |
|
RU2483984C2 |
| NACELLE AIR INTAKE AND NACELLE CONTAINING SUCH AIR INTAKE | 2020 |
|
RU2801764C2 |
| AIR INTAKE FOR TURBOJET ENGINE NACELLE | 2020 |
|
RU2806229C2 |
| SOUNDPROOF PANEL, AIR INTAKE DESIGN AND INNER FIXED STRUCTURE WITH SUCH PANEL FOR AIRCRAFT ENGINE NACELLE | 2009 |
|
RU2545608C2 |
| TURBOJET ENGINE | 1992 |
|
RU2101535C1 |
| SOUND-ABSORBING PANEL FOR GONDOLA OF TURBOJET ENGINE OF AIRCRAFT | 2019 |
|
RU2787912C2 |
| AIR INTAKE HOUSING DESIGN | 2007 |
|
RU2433073C2 |
| ACOUSTIC PANEL FOR TURBOJET ENGINE NACELLE, WITH IN-BUILT FASTENERS | 2011 |
|
RU2579785C2 |
| DEVICE TO COOL TWO-CIRCUIT TURBOJET ENGINE FIRST CIRCUIT | 2005 |
|
RU2397350C2 |
| AIRCRAFT AIR INTAKE | 2019 |
|
RU2791797C2 |
