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公开(公告)号：US20240317392A1
公开(公告)日：2024-09-26
申请号：US18187541
申请日：2023-03-21
申请人： Goodrich Corporation
发明人： Jason Bradley Allen , Kyle M. Madey
CPC分类号： B64C25/60 , B64C25/62 , F16F9/512 , F16F2230/16 , F16F2232/08
摘要： A metering unit is provided. The metering unit includes a metering pin analog and a translation shaft. The metering pin analog is configured to translate about the translation shaft in a first direction in response to a load pressure acting on an annular region of a bottom portion of the metering pin analog. The metering pin analog is configured to translate about the translation shaft in a second direction opposite the first direction in response to the load pressure ceasing.
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公开(公告)号：US20240208678A1
公开(公告)日：2024-06-27
申请号：US18086259
申请日：2022-12-21
申请人： WING Aviation LLC
发明人： Ray Leung , Elizabeth Marshman , Adem Rudin
摘要： A landing gear assembly for an unmanned aerial vehicle (UAV) includes a shock tower, a pair of leg members, and suspension assemblies. The shock tower is adapted to mount to a frame of a fuselage of the UAV and includes upper and lower end mounts. The leg members are adapted to extend out from opposing sides of the lower end mounts. The leg members are flexible and each include an upper leg section pivotally mounted to the lower end mount and a lower leg section adapted to connect to a ground gear. The suspension assemblies are each mounted to and extend between the upper end mount and a corresponding one of the leg members. The suspension assemblies each include a damper and a spring.
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公开(公告)号：US20240059401A1
公开(公告)日：2024-02-22
申请号：US18270908
申请日：2021-12-16
申请人： BAE SYSTEMS PLC
CPC分类号： B64C25/24 , B64C25/405 , B64C25/62
摘要： An undercarriage unit is provided. The undercarriage unit comprises: a rotatable wheel; at least one electromagnet for releasably coupling the undercarriage unit to the aircraft; a switch for selectively activating and deactivating the at least one electromagnet; and a controller arranged to actuate the switch. An aircraft having the undercarriage unit is also provided.
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公开(公告)号：US20230322370A1
公开(公告)日：2023-10-12
申请号：US17714857
申请日：2022-04-06
申请人： GOODRICH CORPORATION
发明人： HARALD KLODE , KYLE M. MADEY , GERARD COX
摘要： A landing gear actuation system is disclosed herein. The landing gear actuation system includes an attachment point integral to a movable member, a flexible pull member having a first end coupled to the attachment point, and a motor configured to move the flexible pull member, wherein the movement of the flexible pull member moves the attachment point and the movable member.
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公开(公告)号：US11753152B2
公开(公告)日：2023-09-12
申请号：US17552512
申请日：2021-12-16
申请人： BETA AIR, LLC
摘要： A system for rolling landing gear is illustrated. System includes a skid component attached to an aircraft and comprising at least a skid tube oriented laterally to a longitudinal axis of the aircraft. System also includes at least a wheel journaled on a rotational fulcrum and at least a biasing means attaching the rotational fulcrum to the skid tube, wherein the biasing means comprises at least a leaf spring and exerts a recoil force resisting upward displacement of the rotational fulcrum with respect to the skid tube.
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公开(公告)号：US20230124974A1
公开(公告)日：2023-04-20
申请号：US17908747
申请日：2021-02-26
摘要： An aircraft landing gear assembly having a first landing gear element movably coupled relative to a second landing gear element to move between a first condition and a second condition. The aircraft landing gear assembly further comprises a fibre composite leaf spring formed from a plurality of composite layers and arranged between the first and second elements, the leaf spring being arranged to bend when the first element moves from the first condition to the second condition. The fibre composite leaf spring comprises a first region and a second region, wherein the number of composite layers in the first region is greater than the number of composite layers in the second region. The landing gear further comprises a mounting assembly arranged to engage the first region of the leaf spring to couple the leaf spring to the first landing gear element.
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公开(公告)号：US20230017118A1
公开(公告)日：2023-01-19
申请号：US17487055
申请日：2021-09-28
发明人： Qing SHI , Yi XU , Ruochao WANG , Guanglu JIA , Tao SUN
摘要： An insect-like jumping-flying robot is provided, which includes a flying module, a driving module and biomimetic bouncing legs. The flying module provides flying power via a propeller and a miniature model airplane motor, and front wings and rear wings provide lift, and moment required for attitude change. The driving module provides power with high power density via a brushless motor and is provided with two stages of deceleration to amplify the torque provided by the brushless motor. The first stage of deceleration is performed by a synchronous wheel set, and the second stage of deceleration is performed by a gear set. A driving push rod is used to transmit the power provided by the brushless motor to the biomimetic bouncing legs.
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公开(公告)号：US11479347B2
公开(公告)日：2022-10-25
申请号：US15608544
申请日：2017-05-30
发明人： Yann Simonneaux , Jon Smith
摘要： A method for pressurizing and depressurizing a shock absorber of an aircraft. More specifically, it relates to a method in which an aircraft weight and ambient temperature are used to calculate a required pressurization level of a shock absorber. As such, the shock absorber may be pressurized to the correct level without applying an iterative approach, greatly reducing initialization time.
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公开(公告)号：US11459094B2
公开(公告)日：2022-10-04
申请号：US16645370
申请日：2018-09-28
摘要： A leg mechanism includes an articulated leg system (100), a passive device (130) and a cable (134). The articulated leg system (100) has a leg portion (128). The passive device (130) is coupled to the articulated leg system and is configured to apply a first force to a portion thereof. The cable (134) is coupled to the articulated leg system (100) and is configured to apply a second force, in opposition to the first force, to a portion thereof. When the cable (134) is drawn away from the articulated leg system (100), the second force moves the leg portion (128) in a first direction. When tension is released from the cable (134), the passive device (130) exerts the first force so as to move the leg portion (128) a second direction that is opposite the first direction.
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公开(公告)号：US11254423B2
公开(公告)日：2022-02-22
申请号：US16863235
申请日：2020-04-30
摘要： A damping landing gear assembly for a vertical takeoff and landing aircraft includes a spring housing forming a spring chamber, a spring disposed in the spring chamber and a plunger slidably coupled to the spring housing and movable between a compressed position and an extended position. The spring biases the plunger into the extended position during flight. The vertical takeoff and landing aircraft experiences a landing force during landing. The landing force compresses the plunger into the compressed position against the bias of the spring, thereby absorbing at least a portion of the landing force.
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