SYSTEM FOR ENGINE JACKET SEALING Russian patent published in 2009 - IPC B64D29/00 

FIELD: transportation.

SUBSTANCE: system for engine jacket sealing comprises jacket fold fixed on engine, solid race, spring mechanism, rollers, sealing element and stems. Also sealing system is equipped with double-arm rockers with control cables, turnbuckle. Cartridge with sealing element parts arranged in it is provided at the end of jacket fold fixed on engine inverted to end of fixed solid power race of nacelle power part. Every part of sealing is fixed in stem that sits in guides with the possibility of its displacement in axial direction, at that flange is arranged at its opposite end, and previously compressed spring rests against it, and the spring presses sealing element via stem to the side of sealed surface. Every stem contacts with one of double-arm rocker arms, and the other arm is hingedly connected to control cable laid along end part of jacket fold with the help of rollers, at that upper end of cable is connected to cable-tightening spring, and lower end is hingedly fixed with rocker arranged together with axis of fold turnbuckle handle rotation. Groove in rocker for cable installation is arranged with eccentricity to provide for negative angle between force in cable in open position of turnbuckle handle, at that occurring torque prevents unintentional rotation of rocker.

EFFECT: improved aerodynamic characteristics of amphibian aircraft and simplified ground service of aviation aircrafts.

7 dwg