Energy Absorbing Landing Systems for Aircraft

    公开(公告)号:US20200346743A1

    公开(公告)日:2020-11-05

    申请号:US16400002

    申请日:2019-04-30

    Inventor: Guy Bernard

    Abstract: An energy absorbing landing system for an aircraft having a fuselage includes landing legs rotatably coupled to the fuselage configured to outwardly rotate when receiving a landing load having a magnitude. The energy absorbing landing system also includes an energy absorption unit coupled to the fuselage and cables coupling the energy absorption unit to the landing legs. The energy absorption unit is configured to selectively apply a resistance to the outward rotation of the landing legs via the cables based on the magnitude of the landing load, thereby absorbing the landing load when the aircraft lands.

    Redundant Electric Propulsion System

    公开(公告)号:US20220258873A1

    公开(公告)日:2022-08-18

    申请号:US17175297

    申请日:2021-02-12

    Abstract: A propulsion system for providing propulsion of an aircraft includes a plurality of electric motors coupled with a rotor of the aircraft to drive the rotor and a propulsion motor control. The propulsion motor control includes at least one processor electrically connected with at least one electric motor to actuate the at least one electric motor and at least one battery electrically connected with the at least one processor and at least one electric motor to provide power to the at least one processor and the at least one electric motor. The propulsion motor control actuates the plurality of electric motors based on a desired torque level to drive the rotor to provide propulsion of the aircraft.

    Redundant electric propulsion system

    公开(公告)号:US11661185B2

    公开(公告)日:2023-05-30

    申请号:US17175297

    申请日:2021-02-12

    Abstract: A propulsion system for providing propulsion of an aircraft includes a plurality of electric motors coupled with a rotor of the aircraft to drive the rotor and a propulsion motor control. The propulsion motor control includes at least one processor electrically connected with at least one electric motor to actuate the at least one electric motor and at least one battery electrically connected with the at least one processor and at least one electric motor to provide power to the at least one processor and the at least one electric motor. The propulsion motor control actuates the plurality of electric motors based on a desired torque level to drive the rotor to provide propulsion of the aircraft.

    CONVERSION ACTUATION SYSTEMS AND METHODS FOR TILTROTOR AIRCRAFT

    公开(公告)号:US20210122463A1

    公开(公告)日:2021-04-29

    申请号:US16666610

    申请日:2019-10-29

    Abstract: A method of displacing rotors of an aircraft between a hover mode and an aircraft mode includes rotating a spindle drivingly connected to the rotors about a spindle axis to displace the rotors between the hover and aircraft modes until a component displaceable with the spindle abuts against a downstop of the aircraft and applies a load against the downstop. The method includes passively maintaining the component against the downstop to maintain the load applied against the downstop. An aircraft is also disclosed.

    Multimodal Unmanned Aerial Systems Having Tiltable Wings

    公开(公告)号:US20200324885A1

    公开(公告)日:2020-10-15

    申请号:US16383884

    申请日:2019-04-15

    Inventor: Guy Bernard

    Abstract: A multimodal unmanned aerial system includes a fuselage forming a payload bay, a control wing forward of the fuselage including a first plurality of propulsion assemblies and a primary wing aft of the fuselage including a second plurality of propulsion assemblies. The primary wing has a greater wingspan than the control wing. The multimodal unmanned aerial system includes linkages rotatably coupling the fuselage to the control wing and the primary wing. The fuselage, the control wing and the primary wing are configured to synchronously rotate between a vertical takeoff and landing flight mode and a forward flight mode. The fuselage, the control wing and the primary wing are substantially vertical in the vertical takeoff and landing flight mode and substantially horizontal in the forward flight mode.

    Conversion actuation systems and methods for tiltrotor aircraft

    公开(公告)号:US11505313B2

    公开(公告)日:2022-11-22

    申请号:US16666610

    申请日:2019-10-29

    Abstract: A method of displacing rotors of an aircraft between a hover mode and an aircraft mode includes rotating a spindle drivingly connected to the rotors about a spindle axis to displace the rotors between the hover and aircraft modes until a component displaceable with the spindle abuts against a downstop of the aircraft and applies a load against the downstop. The method includes passively maintaining the component against the downstop to maintain the load applied against the downstop. An aircraft is also disclosed.

    SYSTEM AND METHOD OF MONITORING REDUCED PERFORMANCE

    公开(公告)号:US20220111977A1

    公开(公告)日:2022-04-14

    申请号:US17067725

    申请日:2020-10-11

    Abstract: A reduced performance monitoring system for a tiltrotor aircraft includes a physical component of the tiltrotor aircraft configured to displace over time in response to an input, a simulation component configured to generate a simulated displacement response of the physical component, and a comparison module configured to compare a measured physical displacement response of the physical component to the simulated displacement response of the physical component.

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