JET ENGINE REVERSER AEROFOIL CASCADE Russian patent published in 2000 - IPC

FIELD: aircraft engines. SUBSTANCE: cascade has front and rear flanges intercoupled by means of longitudinal walls. Arc-shaped vane sections are arranged between flanges. Cascade is divided in cross direction into front flange part, separate vane parts and rear flange part. Parts are intercoupled by longitudinal walls cross division surfaces. Projections are found on some surfaces and recesses to receive projections are made on mating surfaces. Projections can be made in form of pins, and recesses, in form of holes to drive in the pins. Reinforcement member, for instance, glass-fiber braid, is laid along longitudinal walls. Reinforcement member is placed in grooves made along longitudinal walls and on rear and front flanges. Proposed invention provides possibility of making cascade of separate simple unified parts. EFFECT: simplified manufacturing, reduced weight of structure owing to use of light plastic materials at provision of sufficient rigidity of structure. 6 cl, 10 dwg