| 摘要 |
FIELD: motors and pumps. ^ SUBSTANCE: method of ejector traction boosting of aircraft engine consists in intake of ejected gas from environment, mixing with ejecting gas in mixing chamber and mixture exhaust back to environment. Ejected gas from environment is partially or fully taken in direction of aircraft motion, direction of ejected gas motion is changed for the opposite one by reflection from screen and is supplied to mixing chamber. Ejector booster of engine traction comprises nozzle of ejecting gas, inlet device of ejected gas, chamber for mixing of ejected and ejecting gases, diffuser. Ejector traction booster is equipped with hollow fairing of ogive shape, which is fixed by pylons to engine jacket or (and) mixing chamber or (and) to components of aircraft design. Internal surface of fairing forebody serves as screen for flow turning. Area of annular gap between fairing in area of its bottom cut and mixing chamber makes from 0.75 to 1.5 of gap area between mixing chamber and nozzle of ejecting gas. ^ EFFECT: increase of traction by reduction of inlet pulse of ejected jet. ^ 8 cl, 7 dwg |
