FIELD: aeronautical engineering. SUBSTANCE: box has housing 1 and silencer 4 and is provided with device for sucking the boundary layer made in form of passage 7 with ejector 8 whose free end holds wing 9. Passage 7 is brought in communication with interior of housing 1 through perforated panel 10. In the course of operation when jet of exhaust gases moves upward, suction hole of ejector 8 moves towards core of jet due to lifting force of wing, thus providing for reliable operation of ejector and suction of boundary layer. EFFECT: enhanced reliability of trying-out the engines and enhanced efficiency at idling.
| Title | Year | Author | Number |
|---|---|---|---|
| AIRCRAFT JET ENGINE TEST BOX | 1987 |
|
SU1434694A1 |
| 0 |
|
SU1784530A1 | |
| 0 |
|
SU1784531A1 | |
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