초록 ▼

A helicopter with a turbine power unit on which fluid flow from the turbine exhaust nozzle, from a turbine bypass duct, from a duct communicating with the compartment housing the turbine engine, and from one or more ducts for cooling internal parts on the helicopter, converges inside a single manifo

A helicopter with a turbine power unit on which fluid flow from the turbine exhaust nozzle, from a turbine bypass duct, from a duct communicating with the compartment housing the turbine engine, and from one or more ducts for cooling internal parts on the helicopter, converges inside a single manifold the output of which is connected to the input of a tubular screening device extending outwards from the manifold and provided with tubular transverse wing contours communicating externally and arranged in such a manner as to prevent the turbine exhaust nozzle from being directly visible from outside, and in such a manner as to define a number of ejectors for activating the fluid streams converging inside the manifold, and for mixing them together with outside air.

대표청구항 ▼

A helicopter comprising a turbine power unit, an exhaust screening device, and at least a first cooling duct for externally conveying air cooling interal parts on the helicopter, the said power unit comprising an engine compartment, a second duct for cooling the said engine compartment, a turbine en

A helicopter comprising a turbine power unit, an exhaust screening device, and at least a first cooling duct for externally conveying air cooling interal parts on the helicopter, the said power unit comprising an engine compartment, a second duct for cooling the said engine compartment, a turbine engine housed inside the said compartment, a dynamic outside-air intake, an engine intake duct and a bypass duct, both connected to the said dynamic intake, and an engine exhaust nozzle; characterized by the fact that it comprises a manifold (12); an input of said manifold (12) being connected to an output of said nozzle (10), said bypass duct (9), and said cooling ducts (10a, 15) to receive therefrom respective fluid flows to form a fluid mixture; an output of said manifold (12) being connected to an input of said screening device (14) to feed the same with said mixture; and said screening device (14) comprising a number of ejectors (27, 28, 39, 30) which are located so as to activate the fluid flows through said bypass and cooling ducts (9, 10a, 15), and through each of which a part of said fluid mixture flows.