B64D27/14

DEVICE FOR REDUCING AERODYNAMIC DISTURBANCES IN THE WAKE OF AN AERODYNAMIC PROFILE BY VARIABLE-DISTRIBUTION BLOWING ON THE TOP SIDE AND THE UNDERSIDE
20170313412 · 2017-11-02 ·

A device for reducing aerodynamic disturbances in the wake of an aerodynamic profile. The device comprises a first air ejection nozzle arranged on the top side of the profile and a second air ejection nozzle arranged on the underside of the profile. A first blowing chamber is fluidically connected to the first nozzle and a second blowing chamber is fluidically connected to the second nozzle. Air supply means are configured to vary the distribution of air between said first blowing chamber and second blowing chamber. The distribution of the blown air can thus be adapted depending on the situation in which the profile is used, for example depending on the flight phase of an aircraft equipped with such a profile. Also, an aerodynamic profile, a pylon supporting a propulsion assembly for an aircraft comprising such an aerodynamic profile, and an aircraft.

DEVICE FOR REDUCING AERODYNAMIC DISTURBANCES IN THE WAKE OF AN AERODYNAMIC PROFILE BY VARIABLE-DISTRIBUTION BLOWING ON THE TOP SIDE AND THE UNDERSIDE
20170313412 · 2017-11-02 ·

A device for reducing aerodynamic disturbances in the wake of an aerodynamic profile. The device comprises a first air ejection nozzle arranged on the top side of the profile and a second air ejection nozzle arranged on the underside of the profile. A first blowing chamber is fluidically connected to the first nozzle and a second blowing chamber is fluidically connected to the second nozzle. Air supply means are configured to vary the distribution of air between said first blowing chamber and second blowing chamber. The distribution of the blown air can thus be adapted depending on the situation in which the profile is used, for example depending on the flight phase of an aircraft equipped with such a profile. Also, an aerodynamic profile, a pylon supporting a propulsion assembly for an aircraft comprising such an aerodynamic profile, and an aircraft.

PROPELLER FOR AN AIRCRAFT TURBO ENGINE, INCLUDING SAFETY MEANS FOR CONTROLLING BLADE ANGLE OF ATTACK
20170313404 · 2017-11-02 ·

In order to simplify the design of an aircraft turbo engine propeller while enhancing the safety function thereof related to control of the blade angle of attack, a propeller is provided comprising a secondary rotational coupling to couple in rotation, along the radial axis of the blade, the inner radial end of the blade root with a mechanical joining member of a blade angle of attack control device, the secondary coupling being designed and configured to be active in the event of failure of the main pin.

PROPELLER FOR AN AIRCRAFT TURBO ENGINE, INCLUDING SAFETY MEANS FOR CONTROLLING BLADE ANGLE OF ATTACK
20170313404 · 2017-11-02 ·

In order to simplify the design of an aircraft turbo engine propeller while enhancing the safety function thereof related to control of the blade angle of attack, a propeller is provided comprising a secondary rotational coupling to couple in rotation, along the radial axis of the blade, the inner radial end of the blade root with a mechanical joining member of a blade angle of attack control device, the secondary coupling being designed and configured to be active in the event of failure of the main pin.

Hybrid aircraft propulsion power plants

An aircraft power plant has a hybrid propulsion system having an electric motor, a combustion engine, an output shaft drivingly connectable to a thrust generator, a compressor, and a transmission having a first transmission drive path and a second transmission drive path, the combustion engine and the output shaft in driving engagement with the first transmission drive path, the electric motor selectively drivingly engageable to the compressor via either the first drive path or via the second drive path.

Hybrid aircraft propulsion power plants

An aircraft power plant has a hybrid propulsion system having an electric motor, a combustion engine, an output shaft drivingly connectable to a thrust generator, a compressor, and a transmission having a first transmission drive path and a second transmission drive path, the combustion engine and the output shaft in driving engagement with the first transmission drive path, the electric motor selectively drivingly engageable to the compressor via either the first drive path or via the second drive path.

SECURING A TRANSLATING FANLET FOR AN AIRCRAFT PROPULSION SYSTEM NACELLE
20170283081 · 2017-10-05 ·

A nacelle includes a stationary support, a forward nacelle structure, a latch assembly and an aft nacelle structure. The stationary support extends circumferentially about an axial centerline. The forward nacelle structure is configured to translate axially along the centerline between an aft stowed position and a forward deployed position. The latch assembly is configured to secure an aft end portion of the forward nacelle structure to the stationary support where the forward nacelle structure is in the aft stowed position. The aft nacelle structure is configured to translate axially along the centerline between a forward stowed position and an aft deployed position. A forward end portion of the aft nacelle structure axially covers the aft end portion of the forward nacelle structure and the latch assembly where the forward nacelle structure is in the aft stowed position and the aft nacelle structure is in the forward stowed position.

DOORS FOR AN EASY ACCESS TO THE PRESSURIZED HOUSING OF A FLYING WING, FROM THE TRAILING EDGE
20170247100 · 2017-08-31 ·

An aircraft of flying wing or blended wing body type comprising, for access to a pressurized housing, a non-pressurized door in the trailing edge of the aircraft and a pressurized door on the pressurized housing. The distance between the center of the pressurized door and a plane of symmetry of the aircraft is less than or equal to the distance between the center of the non-pressurized door and the plane of symmetry, and the pressurized door is outside a rear wall of the pressurized housing or upstream of a rear extremum point of the housing in the absence of any such rear wall. This aircraft has optimum aerodynamic performance and the circulation of passengers between the pressurized housing and the exterior of the aircraft may be fluid.

DOORS FOR AN EASY ACCESS TO THE PRESSURIZED HOUSING OF A FLYING WING, FROM THE TRAILING EDGE
20170247100 · 2017-08-31 ·

An aircraft of flying wing or blended wing body type comprising, for access to a pressurized housing, a non-pressurized door in the trailing edge of the aircraft and a pressurized door on the pressurized housing. The distance between the center of the pressurized door and a plane of symmetry of the aircraft is less than or equal to the distance between the center of the non-pressurized door and the plane of symmetry, and the pressurized door is outside a rear wall of the pressurized housing or upstream of a rear extremum point of the housing in the absence of any such rear wall. This aircraft has optimum aerodynamic performance and the circulation of passengers between the pressurized housing and the exterior of the aircraft may be fluid.

AERODYNAMIC LIFT ENHANCING SYSTEM FOR A FLYING AUTOMOTIVE VEHICLE
20170240270 · 2017-08-24 ·

An aerodynamic lift enhancing system for increasing aerodynamic lift generated by a body of an automotive flying vehicle is disclosed. The automotive flying vehicle includes a vehicle body enclosing a passenger compartment and having an upper surface at least partially defined by a hood, a roof extending over the passenger compartment, and a front windshield disposed between the hood and roof. The front windshield includes a leading edge positioned proximate a trailing edge of the hood and a trailing edge positioned adjacent the roof. The automotive flying vehicle includes wings extending laterally outward from the vehicle body. The aerodynamic lift enhancing system includes an air discharge nozzle located upstream from the leading edge of the front windshield, the air discharge nozzle operable to discharge a stream of air over the upper surface of the vehicle.