Eddy flow suppressed rotating wing aircraft - directs blade tip thrust nozzle outlet gases into eddy flow

摘要

The rotor blade for aircraft with rotating wings is driven by a reaction device at the blade tip, inclined so that the flow emerging is directed into the blade tip edge eddy flow for suppressing it. This arrangement also reduced aerodynamic noise. The flow (4) emerging from the thrust nozzle (3) is directed into the eddy flow (2), which it meets a certain distance behind the blade tip trailing edge. Into the thrust nozzle can also be fitted a swirler for imposing a helical flow of opposite rotation to that of the eddy flow for suppression purposes.