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WO/2015/035270A1 |
Determination of distance and/or position relative to one or more points by transmission of a wideband signal by a first antenna, reception of the transmitted wideband signal by a second antenna and comparison of the time delay between t...
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WO/2015/024044A1 |
A propulsion system comprising independent rotor sub-systems producing a thrust force of a desired magnitude in any desired radial direction from the centre of the propulsion system, driven from a single driveshaft that may be fixed in i...
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WO/2015/022464A1 |
The assembly (25) links a static housing (24) of the turbomachine, into which supply lines, in particular fluid supply lines (23), arrive, to the blades of the propeller, and comprises: - a system for controlling fluid pitch (27), rigidl...
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WO/2015/022474A1 |
The present invention relates to a rotor for a turbomotor (1) impeller (6), with variable-pitch blades, comprising blade roots (8) capable of rotating in a blade supporting structure and a device (30) for feathering the blades. Said feat...
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WO/2015/010691A1 |
The invention concerns a propeller blade mounting system comprising a mounting system (4) on rolling bearings between a propeller hub (3) and a propeller blade (2), wherein: at least one bearing outer ring (9) is connected in rotationall...
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WO/2015/004362A1 |
The invention relates to an aircraft propeller blade including a structure having an airfoil, consisting of at least one fibrous reinforcement (200) obtained by three-dimensional weaving of threads and made denser by a matrix and a spar ...
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WO/2015/001290A1 |
A fan and a duct assembly for a hovercraft or the like. The fan (6) is located immediately in front of the duct (4).
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WO/2014/207353A1 |
The present disclosure concerns a remote connection system capable of being incorporated into an aircraft (1A, 1B, 1C) comprising at least one motor propeller (50A, 50B, 50C) having a plurality of blades (52A, 52B, 52C) capable of rotati...
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WO/2014/209460A1 |
A joint assembly is provided. The joint assembly includes a first component (222) formed from a first material and a second component (266) including a portion (268) that extends at least partially into the first component (222) and that...
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WO/2014/209456A1 |
Systems and methods for blade attachment are proved. The systems and methods include an aircraft system (100) having a rotor hub (104) including a blade connector (124) and a composite blade (102) including a lug fitting assembly (202). ...
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WO/2014/204918A1 |
A variable pitch system for a water or wind turbine includes a hydraulic system that includes a first hydraulic system (90) and a second, redundant hydraulic system (92) that are completely contained in a nose region of the turbine. The ...
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WO/2014/202873A1 |
The invention relates to a pivot (30) for an air propeller blade, comprising a rotary support (36) which is to be radially mounted on a propeller hub while being able to pivot about a pivoting axis (Z), a blade support (38) comprising a ...
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WO/2014/195931A1 |
A device for automatic control of an angular position of turbine blades of a propeller device, in which the turbine blades are rotatable about a rotational axis and are pivotally displaceable about their respective pivot axes. The device...
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WO/2014/190774A1 |
Systems, methods, and devices for propelling self-propelled movable objects are provided. In one aspect, a rotor assembly for a self-propelled movable object comprises: a hub comprising a first fastening feature; a drive shaft comprising...
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WO/2014/165121A1 |
A method for generating cavitation resistance in a liquid, a portion of which can be in contact with a surface is disclosed. The disclosed method can be carried out by pressure-treating the liquid, the liquid portion in contact with the ...
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WO/2014/146972A1 |
The invention relates to a structure (10) for aircrafts, characterised in that it comprises a part (20) comprising a metal leading edge (30), said leading edge (30) being covered by a coating (40) having a thickness which is less than or...
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WO/2014/141154A1 |
Folding propeller system for safe packing and shipping, and easy deployment.
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WO/2014/143190A1 |
An aerodynamic fan nosecone for a gas turbine engine is provided and includes a fan nosecone 0 that may be made of composite material. To improve airflow transition to the blade members, aerodynamic fairings 40 are provided and are secur...
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WO/2014/137438A1 |
A fan blade assembly with wear mitigation characteristics is disclosed. In a titanium hub, dovetail shaped slots are used for accommodating dovetail shaped roots of fan blades. At least the inwardly facing walls of the dovetail shaped sl...
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WO/2014/137688A1 |
A fan section for a gas turbine engine includes a fan hub having blade slots for receiving a root of a fan blade. A lock ring is configured to move rotatably from an unlocked position to a locked position for securing the blade root in t...
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WO/2014/120384A1 |
A gas turbine engine spinner assembly including a spinner defining at least in part an aerodynamically smooth surface, a shell defining at least in part the aerodynamically smooth surface, and circumferentially spaced apart removable aer...
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WO/2014/102085A1 |
The invention concerns a device for absorbing kinetic energy for an aircraft structural element that may undergo a dynamic impact, comprising: - an outer enclosure (21) made from a braided composite material capable of preserving its int...
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WO/2014/102559A1 |
A propeller and related method for the adjustment of the fluid-dynamic pitch of the propeller blades are described. The propeller is provided with at least one rotatable blade pivoted to a propeller cylindrical casing (3), a hub (2) adap...
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WO/2014/102082A1 |
The invention concerns a device for absorbing kinetic energy for an aircraft structural element that may undergo a dynamic impact, this device comprising: - an outer enclosure (21) made from a braided composite material capable of preser...
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WO/2014/087109A1 |
The invention relates to a propeller blade (34) radially extending between a blade foot (38) and a blade head (36), and comprising a leading edge (40) and a trailing edge (42), in addition to an active surface and a passive surface. Acco...
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WO/2014/083259A1 |
The invention relates to a control device for an engine, comprising means (150) for calculating a blade pitch angle setpoint (160) of at least one propeller of the engine, the calculating means (150) using a propeller performance model, ...
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WO/2014/083256A1 |
The invention relates to a turbine engine cowl (20) capable of covering a fan cone (24), characterised in that said cowl comprises attachment means (27, 32, 36) capable of engaging with connection means (28, 33, 39) of said cone (24) in ...
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WO/2014/072614A1 |
The invention relates to a device (1) for controlling the setting of the blades (2) of a rotor (3) of a propeller, including a radial shaft (6), the rotation of which modifies the setting of the blade (2), a main spring (13), a first end...
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WO/2014/072692A2 |
A band with an airfoil profile that follows a continuous path like a wave substantially in the plane of a virtual disc moving around the circumference between it and a common radial offset such that when the band rotates about the disc's...
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WO/2014/066515A1 |
A unshrouded vane assembly for an unducted propulsion system includes a plurality of vanes which have non-uniform characteristics configured to generate a desired vane exit swirl angle.
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WO/2014/066503A1 |
An unducted thrust producing system has a rotating element with an axis of rotation and a stationary element. The rotating element includes a plurality of blades each having a blade root proximal to the axis, a blade tip remote from the ...
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WO/2014/059549A1 |
In an aspect, an apparatus includes a hovering unmanned aerial vehicle (HUAV). The HUAV includes an arm assembly configured to support a propeller in such a way that propeller drag of the propeller is decoupled from yaw torque requiremen...
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WO/2014/060681A1 |
The invention concerns a device (1) for controlling the pitch of the blades of a fan (4) rotor (3), comprising a radial shaft (6) linked to the blade, a connection rod (8) of which the axial movement controls the rotation of the radial s...
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WO/2014/058353A1 |
The invention relates to the field of air, above-water and underwater transport, in particular to airscrews for aircraft, helicopters and above-water vehicles and to marine propellers for above-water and underwater vehicles and can be us...
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WO/2014/057199A1 |
The main subject matter of the invention is a propeller (32) for a turbomachine (1) comprising a plurality of blades (48) and a blade support ring (47) provided with housings (50) each receiving a pivot (52) carrying the root (58) of one...
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WO/2014/052426A1 |
Devices, systems, and related methods for balancing two or more pieces of independently rotating (e.g., not synchrophased) machinery are provided. In some aspects, the devices, systems, and methods can provide improved balancing techniqu...
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WO/2014/044564A1 |
The present invention relates to a propulsion system for aircraft, in particular lightweight aircraft. For devising a low-noise and low-cost aircraft, according to the invention, at least two ducted propellers (3, 3') are provided, the d...
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WO/2014/044970A1 |
The invention relates to a blower (3) including a system (1) for holding blades (2)having variable choking, the bases of which are mounted onto radial shafts (23) of a rotor (5) of the blower by means of pivots (8). Said blower is charac...
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WO/2014/037948A1 |
An electro-magnetic variable cycloidal rotor or marine propeller with few moving parts besides the blades and the counterweights which generally move inversely to the blades. Blades are propelled by means of generating magnetic forces ve...
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WO/2014/035502A2 |
A propeller governor for controlling blade pitch of a variable pitch propeller has a hydraulic control circuit coupled to the propeller to change blade pitch in response to hydraulic pressure. The hydraulic control circuit has a first pr...
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WO/2014/026246A1 |
This invention relates to a wing comprising a generally aerofoil (or airfoil) shaped body having a leading edge, a trailing edge, a span, and first and second major surfaces extending between the leading edge and the trailing edge, where...
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WO/2014/001701A1 |
The invention relates to a compressor rotor for a turbomachine comprising a shaft (12) and at least two disks (10a, 10b) mounted on said shaft in order to hold a single set of vanes (2) that are rotatably mobile about the rotational axis...
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WO/2014/001723A1 |
The bearing, such as a rolling bearing, is mounted on a support (31) mobile in translation and comprises a lubrication means (29). Advantageously, the lubrication means (29) of the bearing (27) comprises at least one pipe (50) for delive...
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WO/2013/190459A1 |
This invention relates to propeller flange lock arrangement, and more particularly but not exclusively, to a propeller flange lock arrangement suitable for use with a variable pitch propeller system that includes a propeller drive shaft ...
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WO/2013/178963A1 |
The invention concerns a method of producing a metal reinforcement (4, 6) intended to be mounted on the leading edge (23) or trailing edge of a composite blade of a turbine engine, consisting of shaping two metal sheets (1), positioning ...
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WO/2013/175098A1 |
The invention proposes an electrical powering system, comprising an asynchronous machine (100), an arrangement (130) for rotating a rotor (110) of the asynchronous machine by means of a rotor of a propulsion engine and an electrical conn...
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WO/2013/164960A1 |
In the present invention a rotor blade main body (37) is equipped with multiple first composite sheet groups (51) and multiple second composite sheet groups (53) provided along the thickness direction (TD). Each first composite sheet gro...
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WO/2013/154648A1 |
A gas turbine engine includes a very high speed low pressure turbine such that a quantity defined by the exit area of the low pressure turbine multiplied by the square of the low pressure turbine rotational speed compared to the same par...
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WO/2013/126032A1 |
A Brozinsky propulsion system, which comprises a frame and two propellers capable of rotating in opposite directions, wherein each of the propellers is non-detachably connected to an annular channel surrounding said propeller with the po...
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WO/2013/110895A1 |
The method for producing a propeller blade comprises the following steps -forming a spar (1) comprising a blade core (2); forming a blade preform (6) comprising a fibre fabric, said fabric having a separating area (7) where it is divided...
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