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公开(公告)号：US20190311600A1
公开(公告)日：2019-10-10
申请号：US16372843
申请日：2019-04-02
申请人： LEONARDO S.P.A.
发明人： Michele IANNONE , Giampiero COPPOLA
摘要： A system for detecting liquid water in a sandwich structure, the sandwich structure comprising two outer skins and a honeycomb core that rigidly interconnects the outer skins, and wherein is obtained a plurality of cells closed at opposite ends by the two outer skins, the cells being further configured to be in fluid communication with each other, wherein the system comprises at least one sensor placed within one of said cells, the sensor being sensitive to the presence of free liquid water within the cells, and a processing unit configured to receive an output signal provided by the sensor and issue a warning in case of the presence of free liquid water within the cells.
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公开(公告)号：US10435172B2
公开(公告)日：2019-10-08
申请号：US15555928
申请日：2016-03-11
申请人： LEONARDO S.p.A.
发明人： Pierre Abdel Nour , Paolo Brughera , Fabio Monti
摘要： A display device for displaying the attitude of an aircraft with respect to a fixed direction in space is described, said device comprising: a first element that can be fastened to the aircraft; and a second element, which is free to move with respect to the first element, following a change in position of first element with respect to the fixed direction; the second element in turn comprising: a mass, which is designed to return the second element to the same stable position with respect to the fixed direction when the first element changes its position with respect to the fixed direction; and a visual indication, which is representative of the position of the fixed direction, as the position of the first element changes.
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公开(公告)号：US10384770B2
公开(公告)日：2019-08-20
申请号：US15323653
申请日：2015-07-03
申请人： LEONARDO S.p.A.
摘要： A helicopter is described that comprises: a rotor; a fuselage; a drive transmission unit operatively connected to the rotor; a support body, which supports the transmission unit; and constraining means interposed between the support body and the fuselage; the constraining means in turn comprise a crosspiece connected in a fixed manner with respect to the support body and having a first lying plane; the crosspiece is formed in part by a metallic material and in part by a visco-elastic material.
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公开(公告)号：US10384401B2
公开(公告)日：2019-08-20
申请号：US15564106
申请日：2016-04-07
申请人： LEONARDO S.p.A.
摘要： Method for manufacturing stiffened panels comprising the following steps: forming a first and a second wet skin, each comprising a plurality of plies of preimpregnated composite material; forming a plurality of pairs of wet stringers, comprising a plurality of plies of preimpregnated material, wherein forming each pair of wet stringers comprises a) forming an assembly having a central web extending between opposite end flanges, and b) cutting the assembly along a median plane so as to form a pair of wet stringers, placing the pairs of wet stringers on the first wet skin by means of removable supporting members; turning the second wet skin over and placing it on the pairs of stringers, so as to obtain a pair of wet panels arranged above each other; and subjecting the pair of wet panels to a same curing cycle.
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75.发明申请公开(公告)号：US20190210708A1
公开(公告)日：2019-07-11
申请号：US16327201
申请日：2017-09-07
申请人： LEONARDO S.P.A.
CPC分类号： B64C1/32 , B64C1/1484 , B64C1/1492 , B64C27/04
摘要： A window with an emergency exit function for a helicopter is described that comprises: a frame shaped as a framework that can be coupled to a door of said helicopter provided with an opening; and a transparent element designed to engage the opening and held in position by the frame; the frame comprises a first side arranged abutting against the transparent element when a first force below a threshold value is exerted on the latter in a direction transversal to a first plane of a main portion of the transparent element, and which can be elastically moved away from the transparent element when the first force exerted on the latter exceeds the threshold value; and a second side having greater flexural rigidity than the first side in a second plane transversal to first plane and arranged abutting against the transparent element even when the force is greater than said threshold value.
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76.发明申请公开(公告)号：US20190112038A1
公开(公告)日：2019-04-18
申请号：US16089179
申请日：2017-04-07
发明人： Matteo Redaelli , Luca Riviello , Attilio Colombo , Lorenzo Trainelli , Emanuele Zappa , Alberto Rolando , Potito Cordisco , Edoardo Vigoni , Mauro Terraneo , Riccardo Grassetti
摘要： A rotor for a hover-capable aircraft is described that comprises: a drive mast; a hub operatively connected to the drive mast and rotatable about a first axis; and at least two blades hinged to the hub, via a rigid or elastically deformable connection, so as to be able to assume an attitude rotated about and/or translated along at least a second axis with respect to said hub; the aircraft further comprising sensor means configured to detect the attitude of at least one said blade with respect to the hub; the sensor means are configured to acquire an optical image associated with the attitude of the blade with respect to the hub.
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公开(公告)号：US10203403B2
公开(公告)日：2019-02-12
申请号：US15433940
申请日：2017-02-15
申请人： LEONARDO S.p.A.
发明人： Ferraioli Fabrizio , Marasco Renato
摘要： Examples described herein include an acoustic system for the imaging of underwater objects, comprising an underwater transceiver antenna of electro-acoustic type, and control and processing means configured to carry out an imaging step.
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公开(公告)号：US10196153B2
公开(公告)日：2019-02-05
申请号：US15496367
申请日：2017-04-25
申请人： LEONARDO S.p.A.
发明人： Patrizia Lamberti , Giovanni Spinelli , Vincenzo Tucci , Luigi Vertuccio , Liberata Guadagno , Salvatore Russo , Generoso Iannuzzo
摘要： The method allows to monitor a composite material comprising an epoxy resin filled with electrically conductive nanoparticles, wherein at least one electrical property i.e. impedance of the composite material is influenced by being subjected to a mechanical deformation. The method provides for inserting the composite material in an electric circuit emitting an electric signal whose value depends on the electrical property, so that, when the value of the signal overcomes a given threshold value, a warning message is delivered.
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公开(公告)号：US20180362178A1
公开(公告)日：2018-12-20
申请号：US16011305
申请日：2018-06-18
申请人： LEONARDO S.P.A.
发明人： Luca BOTTERO , Massimo GREGORI , Alberto MIDALI
摘要： An air inlet (3) for a nacelle (2) for an aircraft (1) includes at least one acoustic panel (5), adapted to lower noise generated by the engine (21) to which the air inlet (3) is connected. At least one lip (6) defines the profile upon which an airflow flowing into the air inlet (3) acts. If necessary, at least one engine ring (4) is adapted to allow the air inlet (3) to be connected to an engine (21) of the nacelle (2). If necessary, at least one outer barrel (7) is adapted to define the outer shape of the air inlet (3) upon which an airflow acts. The air inlet (3) is manufactured as one single piece, made of a composite material.
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公开(公告)号：US20170253328A1
公开(公告)日：2017-09-07
申请号：US15501076
申请日：2015-08-07
申请人： LEONARDO S.p.A.
发明人： James Wang
摘要： An anti-torque rotor of a helicopter, having: a supporting body; a drive shaft which rotates about a first axis with respect to the supporting body; a hub connected operatively to drive shaft and angularly fixed with respect to first axis; at least one blade which is connected operatively to hub, is angularly fixed with respect to first axis, and is angularly movable with respect to a second axis to adjust the pitch angle of blade; and an actuator which can be operated to rotate blade about second axis to adjust the pitch angle of blade; actuator has an electric motor which generates torque along the first axis; and a mechanical stage interposed between the electric motor and blade, and designed to convert the torque into rotation of blade about the respective second axes; electric motor is fixed to supporting body.
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