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公开(公告)号：US20220258859A1
公开(公告)日：2022-08-18
申请号：US17605764
申请日：2020-03-30
申请人： LEONARDO S.P.A.
摘要： An aircraft capable of vertical take-off and landing is described, comprising a first propulsion unit configured to generate a first thrust directed along a first axis; a second propulsion unit configured to generate a second thrust directed along a second axis; the first propulsion unit and the second propulsion unit can be operated independently of one another; the first axis and second axis are inclined to one another with respect to a first longitudinal direction of the aircraft; the first axis and the second axis are fixed with respect to the aircraft.
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公开(公告)号：US20220009641A1
公开(公告)日：2022-01-13
申请号：US17295967
申请日：2019-10-31
申请人： LEONARDO S.P.A.
发明人： Luca Patricelli
IPC分类号： B64D13/08
摘要： An aerial, marine or land vehicle comprising: a compartment to be cooled; a first circuit through which can pass and, in turn, comprising, a heat exchanger that can be fed with the coolant and is designed to enable the coolant to release heat; a second circuit that can be fed with a second flow of a heat-carrying fluid and is thermally coupled to the heat exchanger; and supply means for supplying a mixture comprising water, inside the second flow in a position upstream of the heat exchanger and spaced from the heat exchanger, proceeding along the feed direction of the second flow along the second circuit, so as to cause evaporation of the mixture and cool the second flow in the heat exchanger.
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公开(公告)号：US11172289B2
公开(公告)日：2021-11-09
申请号：US17045695
申请日：2019-03-15
申请人： LEONARDO S.p.A.
摘要： An acoustic system and method detect and locate low intensity and low frequency sound sources in an investigation area. An acoustic system is effective in identifying survivors trapped under rubble following a catastrophic event. The acoustic system focuses on the low frequency components of the human voice and includes acoustic sensors for detecting acoustic signals generated by the sound sources and for generating data representative of the acoustic signals. A wireless transmitter transmits the data representative of the detected acoustic signals to an electronic receiver block that receives and analyzes the data. A processor executes calibration of the acoustic sensors of the suite to temporally align each signal received from the acoustic sensors, and executes a digital beamforming to combine the data representative of the detected acoustic signals and to create an acoustic image of the investigation area to locate the low intensity and low frequency sound sources.
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公开(公告)号：US11117671B2
公开(公告)日：2021-09-14
申请号：US16169871
申请日：2018-10-24
申请人： LEONARDO S.P.A.
发明人： Antonio Moscatelli
IPC分类号： B64D15/16 , F16K11/074
摘要： An ice-breaking system for an aircraft, comprising a pneumatic ice-breaking device, an air inlet adapted to receive air from the environment outside the aircraft and an air outlet adapted to discharge air into the outside environment, and a motorized valve having an air loading port connected to the air inlet and an air discharge port connected to the air outlet, the valve being configured to supply air to the pneumatic ice-breaking device in a pulsating way. When the aircraft is in motion, the kinetic energy of the air at the air inlet and originating from the relative motion between the air and the aircraft is converted into air pressure at the pneumatic ice-breaking device, and the air outlet is positioned so that when the aircraft is in motion the air pressure at the air outlet is lower than the outside ambient pressure.
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公开(公告)号：US20210229199A1
公开(公告)日：2021-07-29
申请号：US17055030
申请日：2019-10-17
申请人： LEONARDO S.P.A.
发明人： Dario Colombo , Roberto Regonini , Sergio Fiorio
摘要： It is described a method for reconditioning a damaged thread of a transmission of a hover-capable aircraft; the damaged thread being arranged inside a first hole of the transmission; wherein the method includes the following steps: i) centering a tool on the first hole; ii) inserting a first tool inside the tool centred on the first hole and removing the damaged thread through the first tool; iii) inserting a second tool inside the tool and creating a new thread inside the first hole having a diameter larger than the one of the damaged thread; iv) screwing an insert having a thread inside the new thread, so that the insert engages the first hole and defines a reconditioned thread; and v) keeping the transmission mounted on the hover-capable aircraft during steps i), ii), iii), iv).
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26.发明申请公开(公告)号：US20200024766A1
公开(公告)日：2020-01-23
申请号：US16192038
申请日：2018-11-15
申请人： LEONARDO S.P.A.
发明人： Bruno ADDIVINOLA , Stefano PASTORE , Augusto ALBOLINO , Antonio CILIBERTO , Lucia CUTILLO , Giuseppe Stefano GALLO
摘要： An anodization method for corrosion protection of an aluminium or aluminium alloy element used in an aircraft structure, comprising the following steps: a) subjecting the element to a degreasing step by means of an alkaline bath for removing contaminating elements; b) subjecting the element to a subsequent first washing in water; c) subjecting the element to an acid pickling step by dipping the element in an acid solution and then extracting the element from the acid solution and subjecting the element to a subsequent washing in water; subjecting the washed element to a subsequent electrochemical treatment step in a tank by dipping the element in a solution of tartaric acid (C4H6O6) and sulphuric acid (H2SO4); e) subjecting the element to a subsequent washing in water; f) dipping the element in a bath in which a solution of chromium, with an oxidation number of +3, and zirconium ions and fluorides is present, in order to carry out a first post-anodization sealing step; g) extracting the element from the bath of step f) and subjecting it to a subsequent final washing and a subsequent dipping in a tank of boiling water (second sealing step), and then drying the element.
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公开(公告)号：US20190392313A1
公开(公告)日：2019-12-26
申请号：US16443995
申请日：2019-06-18
申请人： LEONARDO S.p.A.
发明人： Michele IANNONE
摘要： A method for performing diagnostics of a structure subject to loads, in particular an aircraft structure, is described, said method being implemented by means of an arrangement of sensors located at relevant points of the structure and corresponding neural networks, and comprising: training the neural network in order to establish an associative relationship between the local displacement of the structure in a subset of relevant points and the local displacement of the structure in at least one residual relevant point; detecting the local displacement of the structure in a plurality of relevant points under operating conditions; estimating the local displacement of the structure in at least one residual relevant point by means of the associated neural network on the basis of the pre-established associated relationship; and comparing the local displacement of the estimated structure with the detected local displacement at the residual relevant point.
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公开(公告)号：US20190193850A1
公开(公告)日：2019-06-27
申请号：US16328069
申请日：2017-09-07
申请人： LEONARDO S.P.A.
发明人： Luigi Maria Bottasso
CPC分类号： B64C27/463 , B64C27/04 , B64C27/59 , B64C27/72 , B64C2027/7211
摘要： A rotor for a hover-capable aircraft is described that comprises: a hub rotatable about a first axis and at least two blades hinged to the hub; each blade comprises a main portion hinged to the hub and a tip portion, which is arranged radially outermost with respect to first axis with respect to the corresponding main portion; the tip portion of each blade is movable with respect to the corresponding main portion of that blade; the tip portion of each blade is selectively movable with respect to the corresponding main portion of that blade between a first position, in which it defines a dihedral or anhedral angle with respect to the corresponding main portion; and a second position, in which it defines a positive or negative sweep angle with respect to the corresponding main portion.
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29.发明申请公开(公告)号：US20190135444A1
公开(公告)日：2019-05-09
申请号：US16180132
申请日：2018-11-05
申请人： LEONARDO S.P.A.
摘要： A damage recovery system of a fuselage of an aircraft, comprising: a tank containing a polyurethane foam; a main duct fluidically coupled to the tank to receive the foam; secondary ducts fluidically coupled to the main duct; and distribution means adapted to allow an outflow of the foam from the secondary ducts. Graphene powder can be mixed and added to the polyurethane foam. In flight, a possible leak (crack or hole) in the fuselage is plugged by the polyurethane foam with graphene powder.
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公开(公告)号：US20190092448A1
公开(公告)日：2019-03-28
申请号：US16086579
申请日：2017-03-17
申请人： LEONARDO S.P.A.
发明人： Aurelio Calcedonio BOSCARINO , Alberto BECCARO , Pierclaudio IAIA , Nicola Italo CATINO , Diego CURLETTO , Davide DE SIMONE , Luciana LO VERDE , Paolo DI STEFANO , Silva REGIS , Riccardo BARGETTO
摘要： An aerial vehicle includes a fuselage situated at the center and a main wing body having a pair of half-wings extending on transversely opposite sides of the fuselage. Each half-wing includes an orientable horizontal surface or plane, which acts as an aerodynamic control, and a fixed winglet.
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