There is described an airfoil combination for aircraft turbofan, designed to save fuel in aircraft operation, which is composed by two wings (5) and two supports (6) articulated or not, for each of the wings (5). These two wings (5) are located inside the turbofan, internally to the outer fairing (3) of the turbofan and externally to the other components of the turbofan. In one of the embodiments, the two wings may have high-lifting devices, such as flaps. The two wings use the “blown” air at great speed by the fan (1) to generate a pre-determined lifting effect pursuant to the flight phases and the operating regimes of the turbofans to compensate totally or partially the weight of the turbofan itself, reducing the lift effort to be generated by the aircraft wings. As the lift force generated by a wing is directly proportional to the square root of the air speed which passes over its surfaces, the lift effect obtained as described above is proportionally very high in relation to the area of the wings (5) that are the subject matter of the present invention.
Airfoil combination for aircraft turbofan
2015-12-29
Patent
Electronic Resource
English
Tema Archive | 1982
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