| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: invention relates to aircraft engine production, particularly to turbojet engine nozzle design. Proposed flat nozzle comprises casing, upper and lower rotary flaps, drive cylinder extra drive cylinder and rotary frame. One end of drive cylinder is attached to the housing, while another one is connected with upper rotary flap by rotary frame. The latter features a triangle cross section. Rotary frame surface that faces nozzle flow section is cylindrical. Aforesaid extra drive cylinder has its one end attached to sidewall, while another end is jointed to lower end of upper flap. Frame turn axle is rigidly fixed to nozzle sidewalls. ^ EFFECT: variation of engine thrust vector direction, reduced aerodynamic loss and higher engine thrust. ^ 2 dwg |
