-
公开(公告)号：US20250020939A1
公开(公告)日：2025-01-16
申请号：US18571497
申请日：2023-04-05
Applicant: Leonardo S.P.A.
Inventor： Fabrizio Giuseppe BISESTO , Alessandro PERNA , Francesco COPPOLA , Alberto COSENTINO
Abstract: The coherent beam recombination system provides an output recombined beam and comprises: a laser source providing a source beam with linewidth; a beam broadener providing a broadened beam from the source beam; a splitter splitting the broadened beam into a plurality of secondary beams; a plurality of channels coupled to the splitter. Each channel receives a respective secondary beam and provides a respective intermediate beam. Each channel has an optical amplifier, a phase modulator, an optical delay line, and an opto-mechanical element. The CBC system further comprises an optical sensor that provides a detection signal indicative of an intensity of a received optical beam; a focusing optics that receives the intermediate beams, provides the output recombined beam from a first portion of each intermediate beam, and provides a sampled recombined beam to the optical sensor from a second portion of each intermediate beam. The CBC system further comprises a control unit coupled to the optical sensor and the plurality of channels. The control unit comprises a phase-locking module configured to: provide a plurality of phase control signals to the phase modulators; receive the detection signal from the optical sensor, indicative of an intensity of the sampled recombined beam; calculate a cost function from the detection signal, wherein the cost function is a function of the intensity of the sampled recombined beam; perform an optimization algorithm of the cost function, configured to maximise the intensity of the sample recombined beam; and provide a plurality of updated phase control signals, based on a result of the optimization algorithm.
-
公开(公告)号：US20240411836A1
公开(公告)日：2024-12-12
申请号：US18698408
申请日：2022-10-11
Applicant: LEONARDO S.P.A.
Inventor： Andrea Baldi , Ugo Mariani , Daniele Mezzanzanica , Mara Tanelli , Jessica Leoni , Francesco Zinnari , Eugenia Villa
Abstract: Method implemented by computer for detecting flight regimes of an aircraft equipped with a monitoring system that acquires samples of quantities relative to the flight including: acquiring an unknown matrix including, for each quantity, a corresponding series of samples; performing smoothing operations of each series of samples, so as to generate a corresponding series of smoothed samples and determining a corresponding approximating function defined by a respective series of coefficients and by a plurality of base functions, the smoothed series of samples forming a smoothed unknown matrix; on the basis of the base functions, applying to the smoothed unknown matrix and to the corresponding sets of coefficients a classifier trained to generate, for each flight regime among a plurality of flight regimes, a corresponding estimate of the probability that the smoothed unknown matrix and the corresponding sets of coefficients belong to a cluster relative to the flight regime; identifying a flight regime in which the aircraft operated, on the basis of the estimates generated by the classifier.
-
公开(公告)号：US20240375789A1
公开(公告)日：2024-11-14
申请号：US18655792
申请日：2024-05-06
Applicant: LEONARDO S.P.A.
Inventor： Stefano Giuseppe CORVAGLIA , Nicola GALLO , Moreno CORTELLUCCI , Alfredo RICCIARDI
Abstract: A method for manufacturing a box-shaped structure for aircrafts, the structure extending along a longitudinal direction between a first longitudinal end and a second longitudinal end, and comprising: a first longitudinal wall; a second longitudinal wall facing the first wall and spaced from the first wall by a non-zero amount; a plurality of spars extending longitudinally and between said first wall and second wall; and at least one reinforcing rib arranged transversal to the spars at a transversal sector interposed between the first and the second longitudinal end; each spar has a spar cavity defining a lack of material extending longitudinally from an axial coordinate, which corresponds to the transversal sector, up to the second longitudinal end, so that the reinforcing rib can be easily inserted even after the integral coupling between the first wall, the second wall and the spars without compromising the structural properties of the box-shaped structure.
-
公开(公告)号：US20240350843A1
公开(公告)日：2024-10-24
申请号：US18291625
申请日：2023-03-20
Applicant: LEONARDO S.P.A.
Inventor： Antonio Piccolo , Emanuele Bottone , Gaetana Mastroianni , Umberto Papa
IPC: A62C3/02 , B64U30/21 , B64U70/20 , B64U101/47
CPC classification number: A62C3/0235 , B64U30/21 , B64U70/20 , B64U2101/47
Abstract: Fire fighting drone comprising an exoskeleton defining an internal space extending along an axis H and a flexible bag stably housed in the internal space, provided with a release valve and configured to contain a fire fighting liquid; a support structure provided with a plurality of thrusters adapted to perform a thrust that enables the support structure to be supported in flight; the support structure is connected to a first end portion of the exoskeleton; a plurality of movable directional wings carried by the exoskeleton, extending outwards from the exoskeleton itself and angularly movable relative to the exoskeleton around respective axes H transverse to the axis H; an electronic control unit adapted to control the thruster, to generate the release signal and adapted to control the actuators that perform the rotation of the wings; the electronic control unit is configured to control said wings to allow the rotation of the wings during the free-fall phase of said drone which is released from an aircraft and thereby performs a certain trajectory of said drone from the aircraft to a launch zone; the electronic unit is configured to enable the discharge of said liquid from said bag and the activation of the thrusters following the discharge of the liquid to enable the flight of the support structure and of the exoskeleton containing the empty bag to a landing zone.
-
公开(公告)号：US20240327032A1
公开(公告)日：2024-10-03
申请号：US18579593
申请日：2022-07-22
Applicant: LEONARDO S.P.A.
Inventor： Stefano Baglioni , Maurizio Ribaudo
Abstract: A locking device for an aircraft is described, comprising a body adapted to be fixed to a support surface, a first ring and a second ring rotatable the one with respect to the other with respect to a rotation axis between a first angular position and a second angular position. The first and second ring enclose an area for the landing of the aircraft and are contained within the body. The locking device also comprises a plurality of cables, which connect the first ring to the second ring. The locking device is positionable in an unlocking position, wherein the first and second ring are in the first angular position, the cables are spaced from said area; or in a locking position, wherein the first and second ring are in the second angular position and the cables occupy a region of the area, so as to cooperate in contact with the aircraft to constrain it with respect to the support surface.
-
Patent Agency Ranking
公开(公告)号：US12071230B2
公开(公告)日：2024-08-27
申请号：US17424294
申请日：2020-05-26
Applicant: LEONARDO S.P.A.
Inventor： Michele Delli Paoli , Fabio Nannoni , Roberto Vanni
CPC classification number: B64C27/59 , B64C27/82 , B64C2027/8218 , B64C2027/8281
Abstract: An anti-torque rotor is described comprising: a mast rotatable about a first axis; a plurality of blades hinged on the mast and rotatable about respective second axes to vary the respective angles of attack; a control element sliding along the first axis with respect to the mast, rotatable with the mast and connected to the blades to cause the rotation about the second axes; a control mechanism, axially sliding and angularly fixed with respect to the mast; and a connection element interposed between the control mechanism and the control element, sliding integrally with the control mechanism along the mast; the control mechanism comprises a first and a second rod; the rotor comprises a coupling, which is configured to enable/prevent rotation of the second rod with respect to the first rod when the torque exerted by the first connection element on the second rod about the first axis is greater/less than a threshold value in the event of failure of the connection element.
-
公开(公告)号：US20240283160A1
公开(公告)日：2024-08-22
申请号：US18566937
申请日：2022-12-12
Applicant: LEONARDO S.P.A.
Inventor： Giorgio Gibilaro , Tindaro Cadili , Anna Genovese , Liborio Gianino , Agatino Privitera , Fabrizio Tosto , Vincenzo Cascio
CPC classification number: H01Q13/025 , H01Q5/55
Abstract: The invention concerns a multimode feed for a reflector antenna of a monopulse tracking system. The feed comprises: a receiving element having an aperture, which receives an electromagnetic wave and generates, from the electromagnetic wave, a waveguide signal comprising a plurality of higher-order modes, as a function of an incidence angle of the electromagnetic wave on the aperture; and a waveguide structure, coupled to the receiving element, which generates, from the plurality of higher-order modes, a first error signal at a first output port and a second error signal at a second output port. The waveguide structure has: a first coupler that extracts, from the waveguide signal, a first higher-order mode and provides a first extracted signal; a second coupler that extracts, from the waveguide signal, a second higher-order mode and provides a second extracted signal; a third coupler that extracts, from the waveguide signal, a third higher-order mode and provides a third extracted signal; a fourth coupler that extracts, from the waveguide signal, a fourth higher-order mode and provides a fourth extracted signal; a first summing element that sums the first extracted signal and the second extracted signal, thereby generating the first error signal at the first output port; and a second summing element that sums the third extracted signal and the fourth extracted signal, thereby generating the second error signal at the second output port.
-
公开(公告)号：US20240280338A1
公开(公告)日：2024-08-22
申请号：US18566040
申请日：2022-06-07
Applicant: LEONARDO S.P.A.
Inventor： Manuel D'EUSEBIO , Claudio NARDI , Luca MINEO
Abstract: The installation includes a traversing portion configured to be rotatably mounted and supported on a stationary support structure, to rotate about a traversing axis. An elevating portion is rotatably supported by the traversing portion about an elevating axis perpendicular to the traversing axis. A firearm assembly supported by the elevating portion has a barrel configured to fire linkless ammunitions through firearm assembly. A magazine is configured to contain a plurality of linkless ammunitions to be fed to the barrel. A feeding assembly is configured to transfer the linkless ammunitions from the magazine to the barrel. The magazine is carried by the traversing portion and is operatively integral therewith. The feeding assembly is carried by the elevating portion and is operatively integral therewith. A transfer device mounted on the traversing portion is configured to transfer the linkless ammunitions (A) from the magazine to the feeding assembly.
-
9.发明公开公开(公告)号：US20240167911A1
公开(公告)日：2024-05-23
申请号：US18283469
申请日：2022-03-21
Applicant: LEONARDO S.P.A.
Inventor： Fabio CIRINNA’ , Andrea Giorgio BUSA’
Abstract: The disclosure relates to a system for sensing and recognizing acoustic and/or vibrational anomalies. The system comprises: a unit using optical fiber for the distributed acoustic and/or vibrational sensing of at least one acoustic and/or vibrational anomaly and for generating an alarm signal representative of the sensing of such at least one anomaly; one or more acoustic-electric transducers to sense one or more ambient audio signals associated with the at least one acoustic and/or vibrational anomaly and to convert such ambient audio signals into electrical signals; an audio classifier module configured to classify the electrical signals generated based on at least one algorithm for data analysis and machine learning of information from the data, to generate a classification signal; a correlator module configured to receive the alarm signal and the classification signal and to compare such signals to generate a qualified alarm signal.
-
公开(公告)号：US11919633B2
公开(公告)日：2024-03-05
申请号：US17786170
申请日：2020-12-17
Applicant: LEONARDO S.P.A.
Inventor： Riccardo Bianco Mengotti , Carlo Cassinelli , Alessandro Scandroglio , Andrea Bavetta , Paolo Brughera , Luca Sampugnaro
IPC: B64C29/00 , B64C1/20 , B64C1/22 , B64C3/52 , B64C9/14 , B64C27/22 , B64C39/12 , B64D27/24 , B64D29/00 , B64D35/04 , B64D35/08 , B64D27/02
CPC classification number: B64C29/0033 , B64C1/20 , B64C1/22 , B64C3/52 , B64C9/14 , B64C27/22 , B64C39/12 , B64D27/24 , B64D29/00 , B64D35/04 , B64D35/08 , B64D2027/026
Abstract: A convertiplane is described that comprises a fuselage, having a first longitudinal axis, with a nose and a tail portion; a pair of wings arranged on respective opposite sides of said fuselage, carrying respective rotors; a pair of engines operatively connected to respective said rotors; at least one first lifting surface arranged on said tail portion; and a pair of canards arranged on said nose of said fuselage and defining respective second lifting surfaces adapted to generate a third lift/negative lift value; each rotor comprising a mast rotatable about a second axis and about an relative third axis transversal to said second axis and with respect to the fuselage, so as to set said convertiplane between a helicopter configuration and an aeroplane configuration; each second axis, in use, being transversal to the first axis of said convertiplane in said helicopter configuration and being parallel to said first axis in said aeroplane configuration.
-
-
-
-
-
-
-
-
-
Search Results
254
records
(took 0.022 seconds)
