公开(公告)号：US10935052B2

公开(公告)日：2021-03-02

申请号：US16621158

申请日：2018-06-28

Applicant: LEONARDO S.P.A.

Inventor： Giacomo Bacchiega ,  Lucas Martin Piccinini ,  Roberto Bozzi

IPC: F16K17/00 ,  F15B13/04 ,  G05D23/02 ,  F15B21/045

Abstract: Described herein is a safety valve for a hydraulic circuit comprising a pump designed to supply a hydraulic fluid at a first pressure value to a pressure line, comprising: a chamber, which can be fluidically connected to the pressure line and is filled with the hydraulic fluid at a pressure value and a temperature value; and a casing with an opening, which can be connected to a reservoir of the hydraulic circuit; a shutter, which delimits the first chamber and can be displaced between a first position, in which it occludes the first opening, and a second position, in which it leaves the opening at least in part free; the valve comprises a thermally expandable element, which can be displaced, as a result of the temperature of the hydraulic fluid, between a first configuration that it assumes when the temperature of the hydraulic fluid is below the threshold value and a second configuration that it assumes when the temperature of the hydraulic fluid is above the temperature threshold value and in which it holds or displaces the first shutter in or towards the second position so as to reduce the pressure in the first chamber.

公开(公告)号：US20200295342A1

公开(公告)日：2020-09-17

申请号：US16818307

申请日：2020-03-13

Applicant: LEONARDO S.p.A.

Inventor： Yuri GASSANI

IPC: H01M2/38 ,  G05D23/13 ,  B63G8/08 ,  G05D11/16

Abstract: An electrochemical-type power supply source for use in marine environment, is provided with: an electrochemical stack, which generates electric power in the presence, internally, of an electrolytic fluid; a first tank, designed to contain electrolytic fluid at a first temperature; a second tank, designed to contain electrolytic fluid at a second temperature, lower than the first temperature; a thermostatic valve, that mixes electrolytic fluid at a lower temperature with electrolytic fluid at a higher temperature, for generating a mixed electrolytic fluid to be introduced into the electrochemical stack at a controlled temperature for generating a desired electric power. The electrochemical power supply is further provided with an auxiliary tank, adapted to contain electrolytic fluid at a third temperature, higher than the first temperature; and the thermostatic valve is connected to the auxiliary tank and receives, at an input, the electrolytic fluid at the third temperature, as a higher-temperature electrolytic fluid, for generating the mixed electrolytic fluid, in a given operating condition.

公开(公告)号：US20200282409A1

公开(公告)日：2020-09-10

申请号：US16808976

申请日：2020-03-04

Applicant: LEONARDO S.p.A.

Inventor： Dino BARTOLI

IPC: B04C3/06 ,  B01D19/00

Abstract: A centrifugal gas-liquid separator wherein a tubular casing houses a central tubular duct, which is provided with a first free end and with a second end that communicates with a gas-outlet duct and carries a transversal annulus-shaped plate having a perimetral edge that faces the inner wall of the tubular body to define an annular gap. The plate divides the space inside the tubular casing into a first chamber and into a second chamber that communicate with each other through the annular gap. A liquid-outlet duct communicates with the second chamber and a liquid-phase/gas-phase inlet duct extends tangentially from the tubular casing and discharges into the first chamber through an inlet nozzle. A regulation device is provided, which is designed to modify the section of the inlet nozzle in order to modify the rate of entry of the liquid phase and gas phase into the first chamber and to adapt the operation of the centrifugal gas-liquid separator following variations of flow rate.

公开(公告)号：US20200278698A1

公开(公告)日：2020-09-03

申请号：US16649745

申请日：2018-10-05

Applicant: LEONARDO S.P.A.

Inventor： Roberto Vanni ,  Davide Gagliostro ,  Davide Casola

IPC: G05D1/08 ,  B64C13/04 ,  B64C13/40 ,  B64C13/50 ,  B64C13/30 ,  F15B18/00

Abstract: A stability and command augmentation system for controlling an aircraft, comprising: a first member moveable by a pilot input device to a first position defining a first input; a second member moveable to a second position associated with a second input; and an adder device configured to add the first and second inputs and supply an output signal defining a command for an element to be controlled of the aircraft; the stability and command augmentation system comprises: a casing, a first and a second piston integrally movable with one another inside the casing and operatively connected to the second member; and control means configured to exert a first force on the first piston and a second force on the second piston; the second force is independent of the first force.

公开(公告)号：US20200147947A1

公开(公告)日：2020-05-14

申请号：US16680863

申请日：2019-11-12

Applicant: LEONARDO S.p.A.

Inventor： Gianni IAGULLI ,  Marco RAFFONE ,  Alberto RUSSOLILLO ,  Tommaso NANULA ,  Giuseppe TOTARO

IPC: B32B37/00 ,  B64F5/10 ,  B64C3/18 ,  B64C3/26 ,  B32B3/08 ,  B32B37/10 ,  B32B37/12 ,  B32B7/12

Abstract: A method for manufacturing a wing-box for aircraft comprises: arranging, on a curing surface, a first panel of composite material comprising a skin a plurality of longitudinal stringers, and arranging, on each stringer, a caul plate; arranging, on the first panel, pluralities of support inserts so that each support insert rests on a respective caul plate, and on the skin of the first panel, and arranging, on the first panel, a plurality of ribs of non-polymerized composite material, each rib comprising a plate, a first pair of flanges and a second pair of flanges arranged at opposed ends of the plate, and having openings on an edge of the plate, by placing the respective first pair of flanges on the first panel and the respective plurality of openings on the plurality of support inserts, and having the first panel and the plurality of ribs undergo a curing process in autoclave with vacuum bag.

公开(公告)号：US20190352000A1

公开(公告)日：2019-11-21

申请号：US16473701

申请日：2017-12-29

Applicant: LEONARDO S.P.A.

Inventor： Luigi BOTTASSO ,  Antonio ZOCCHI ,  Massimo BRUNETTI ,  Luca MEDICI ,  James WANG ,  Giorgio LUCCHI

IPC: B64C27/12 ,  B64C27/00

Abstract: There is disclosed a rotor for an aircraft capable of hovering, comprising: a stationary support structure; a rotative element, which is rotatable about a first axis with respect to said stationary support structure with a first rotational speed; at least one blade, which is operatively connected with said rotative element; and a transmission group, which comprises an output element rotatable about first axis with a second rotational speed different from first rotational speed.

公开(公告)号：US20190047690A1

公开(公告)日：2019-02-14

申请号：US16076557

申请日：2017-02-22

Applicant: LEONARDO S.P.A.

Inventor： Luigi Maria Bottasso

IPC: B64C27/00 ,  F16F15/14

Abstract: A damping device is described that is designed to counter the transmission of vibrations to a further element and comprises: a beam element, which extends mainly parallel to an axis, is constrained to the further element and is designed to flexurally oscillate, in use, in a plane parallel to the axis to counter the transmission of vibrations to the further element; an actuator, which comprises a transmission element operatively connected to the beam element and extending mainly along the axis; the actuator being controllable to apply a direct tensile or compressive load along the axis on the transmission element that is variable according to the frequency of the vibrations to be dampened.

公开(公告)号：US10158166B2

公开(公告)日：2018-12-18

申请号：US15524490

申请日：2014-11-06

Applicant: LEONARDO S.p.A.

Inventor： Stefano Pacetti ,  Leopoldo Infante ,  Mario Teglia ,  Emanuele Tiribelli ,  Flavio Troiani

IPC: H01Q1/40 ,  C09D123/00 ,  C09D199/00 ,  H01Q9/16 ,  C09D123/26

Abstract: Disclosed herein is a method for applying a conformal coating to one or more radio frequency elements of an antenna or antenna array. Said method is characterized in that the conformal coating is based on a thermoplastic material produced from a mixture comprising a thermoplastic polymer and an olive pomace.

公开(公告)号：US20180172358A1

公开(公告)日：2018-06-21

申请号：US15848604

申请日：2017-12-20

Applicant: LEONARDO S.p.A.

Inventor： Antonio MOSCATELLI ,  Pierpaolo Borrelli ,  Antonio Romano

IPC: F28D15/02 ,  F28D15/04

CPC classification number: F28D15/0266 ,  F28D15/04 ,  F28D15/043 ,  F28D2021/0021 ,  F28D2021/0028 ,  H05K7/20681

Abstract: The cooling system comprises: at least one plate member forming a wall of a casing inside which the electronic apparatus to be cooled is accommodated in use, the plate member having a first side facing in use towards the apparatus and a second side opposite to the first side; and a fluid circuit formed in the plate member, wherein the fluid circuit comprises a first duct formed on the first side of the plate member and extending along a first labyrinth path and a second duct formed on the second side of the plate member and extending along a second labyrinth path. The plate member has a first through hole and a second through hole through which the first duct and the second duct are in in fluid communication with each other.

公开(公告)号：US20180164063A1

公开(公告)日：2018-06-14

申请号：US15577677

申请日：2016-05-27

Applicant: LEONARDO S.P.A.

Inventor： Gian Battista LEONESIO ,  Paoloandrea CASTELLETTI ,  Gianmario GREGORINI

IPC: F41A17/10 ,  F41A27/12 ,  B64D7/06

CPC classification number: F41A17/10 ,  B64D7/06 ,  F41A17/08 ,  F41A27/02 ,  F41A27/12 ,  F41G5/14

Abstract: A firearm support for a firearm includes: a body, which is provided with at least one profile on its surface; a feeler pin, for striking against the profile and for being coupled to the firearm so as to follow the movement of said firearm; a support element, rotatable around a first axis (z-z) relative to the body. The support element is suited to be coupled to the firearm, thus allowing mutual rotation between the support element and the firearm around a second axis (x-x).