FLYING VEHICLE VARIABLE-CAMBER WING Russian patent published in 1999 - IPC

FIELD: aeronautical engineering. SUBSTANCE: wing includes fixed section 1 and deflectable section 2 interconnected by means of four-link member and flexible upper skin 13, lower skin 15 secured on deflectable section at one end and freely resting against fixed section 1 at other end. Arranged in section 1 are devices for securing the four-link members and shackle 6 of drive of deflectable section which transmit motion to wing deflectable section. Load-bearing brackets with guide rollers 8 where rack 9 with inclined slot is mounted are secured on deflectable section of wing. Drive rollers 11 for transmission of forces from rack to shackle are received by these slots. Hinges used for securing the four-link member to movable and deflectable sections are so positioned that instantaneous centers of rotation of deflectable section lying in intersection of axes of four-link members are on upper flexible skin within entire range of deflection. Upper flexible skin is articulated to lower skin through load-bearing wall 14. EFFECT: extended range of varying wing camber; location of deflectable section drive within low structural depths of wing; improved aerodynamic of wing. 6 dwg