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公开(公告)号：US12091161B2
公开(公告)日：2024-09-17
申请号：US17798130
申请日：2021-02-04
CPC分类号： B64C25/26 , B64C25/20 , F16F1/32 , B64C2025/125
摘要： An aircraft landing gear comprising: a first member, a second member pivotally coupled to the first member, and a spring coupled to the first and second members, the spring comprising a plurality of elastically deformable washers, the spring being arranged to generate a biasing force between the first and second members to bias the first member toward a predetermined orientation relative to the second member.
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公开(公告)号：US20240300639A1
公开(公告)日：2024-09-12
申请号：US18494621
申请日：2023-10-25
申请人： Lilium GmbH
摘要： A landing gear for a vertical take-off and landing aircraft includes a wheel, a shock absorber with an absorber connection to connect to a fuselage of the aircraft and at least one attachment lever with a lever connection to connect to the fuselage of the aircraft spaced apart from the absorber connection, the wheel being attached to the attachment lever spaced apart from the lever connection, wherein the shock absorber is connected to the wheel directly or indirectly via a wheel connection to provide a load path for vertical load from the wheel to the absorber connection, and wherein the shock absorber comprises a fuse pin at the absorber connection and/or the wheel connection having a predetermined breaking load to break and release the connection at the absorber connection and/or the wheel connection, and wherein the attachment lever comprises a rotary bearing providing a folding movement for the wheel from an extended landing position into a crash position when the fuse pin breaks.
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公开(公告)号：US20240228025A9
公开(公告)日：2024-07-11
申请号：US18224392
申请日：2023-07-20
申请人： M Nizar Sanadiki
发明人： M Nizar Sanadiki
CPC分类号： B64C25/26 , B64C25/20 , B64C25/405
摘要： An aircraft landing gear control system. As an aircraft prepares to land, the system determines the ground speed of the aircraft and causes the aircraft's wheels to rotate at an angular velocity that corresponds to the aircraft's ground speed so that upon landing, the aircraft wheels are not subjected to a sudden jarring impact.
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公开(公告)号：US11975821B2
公开(公告)日：2024-05-07
申请号：US17755898
申请日：2020-10-27
发明人： Mitsuru Ishikawa , Taro Fukuda , Takuma Takezawa , Nobuyuki Tada
CPC分类号： B64C25/12 , B64C25/20 , B64C39/024
摘要： Provided is a flight device that can surely perform transformation operations of legs supporting a fuselage base in landing. A flight device 10 includes: a fuselage base 14; a first leg 26 provided on the fuselage base 14 and transformable between a flight state and a landing state; a second leg 27 provided on the fuselage base 14 as a separate body from the first leg 26 and transformable between the flight state and the landing state; a first drive unit 281 and a second drive unit 282 configured to drive transformation operations of the first leg 26 and the second leg 27; and an operation interconnecting mechanism 16 configured to interconnect the first leg 26 and the second leg 27 in terms of operation.
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公开(公告)号：US11926411B2
公开(公告)日：2024-03-12
申请号：US17897761
申请日：2022-08-29
CPC分类号： B64C25/20 , B64C25/001 , B64C25/12 , B64C25/62 , B64C2025/008 , B64C2025/125 , B64C2025/325
摘要： A leg mechanism includes an articulated leg system, a passive device and a cable. The articulated leg system has a leg portion. The passive device is coupled to the articulated leg system and is configured to apply a first force to a portion thereof. The cable is coupled to the articulated leg system and is configured to apply a second force, in opposition to the first force, to a portion thereof. When the cable is drawn away from the articulated leg system, the second force moves the leg portion in a first direction. When tension is released from the cable, the passive device exerts the first force so as to move the leg portion a second direction that is opposite the first direction.
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公开(公告)号：US11919624B2
公开(公告)日：2024-03-05
申请号：US17695214
申请日：2022-03-15
发明人： Robert Kyle Schmidt
摘要： An aircraft has retractable landing gear configured to reciprocate between a deployed position and a stowed position. A landing gear door installation includes a first door rotatably coupled to the aircraft about a first axis for movement between a raided position and lowered position. The door installation further includes a second door located aft of the first door and coupled to the aircraft for movement between a first position when the landing gear is in the stowed position, and a second position when the landing gear is in the deployed position. A portion of the first door overlaps a portion of the second door when the first door is in the raised position and the second door is in the first position so that the first door blocks deployment of the second door to the second position.
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公开(公告)号：US11884384B2
公开(公告)日：2024-01-30
申请号：US17839149
申请日：2022-06-13
申请人： GOODRICH CORPORATION
发明人： Harald Klode , Kyle M. Madey , Gerard Cox
CPC分类号： B64C25/24 , B64C25/20 , B64C25/22 , F16H19/08 , F16H2019/085
摘要： A landing gear actuation system is disclosed herein. The landing gear actuation system includes a trunnion sprocket coupled to a movable member, a drive motor, and a flexible drive member extending between and to the motor and the trunnion sprocket. The motor is configured to move the flexible drive member, wherein the movement of the flexible drive member moves the trunnion sprocket and the movable member. The flexible drive member may be a belt or a chain.
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公开(公告)号：US20230399097A1
公开(公告)日：2023-12-14
申请号：US17839149
申请日：2022-06-13
申请人： GOODRICH CORPORATION
发明人： HARALD KLODE , KYLE M. MADEY , GERARD COX
CPC分类号： B64C25/24 , B64C25/22 , B64C25/20 , F16H2019/085
摘要： A landing gear actuation system is disclosed herein. The landing gear actuation system includes a trunnion sprocket coupled to a movable member, a drive motor, and a flexible drive member extending between and to the motor and the trunnion sprocket. The motor is configured to move the flexible drive member, wherein the movement of the flexible drive member moves the trunnion sprocket and the movable member. The flexible drive member may be a belt or a chain.
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公开(公告)号：US20230192275A1
公开(公告)日：2023-06-22
申请号：US17926344
申请日：2021-05-19
发明人： Thomas KOANE-YANE
摘要： An aircraft undercarriage includes a leg for mounting on a structure of the aircraft so as to be movable between a deployed position and a retracted position, the undercarriage being fitted with a breaker strut including two hinged elements that are hinged together at a knee, with a first element for coupling to the structure of the aircraft and a second element for coupling to the undercarriage, a return member being arranged between the two elements to urge them towards a substantially aligned position that is defined by respective abutments. According to the invention, one of the strut elements incorporates a linear actuator having a slidable rod that is coupled to the other strut element by means of a link, the assembly being arranged in such a manner that moving the slidable rod of the actuator in a single direction causes, in succession, the elements of the strut to move out of alignment and the undercarriage to move from the deployed position to the retracted position.
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公开(公告)号：US20220402598A1
公开(公告)日：2022-12-22
申请号：US17661846
申请日：2022-05-03
申请人： The Boeing Company
发明人： Mitchell L.R. MELLOR
摘要： A levered landing gear including a first shock strut having and a second shock strut disposed concentrically with the first shock strut. The second shock strut includes a metering pin coupled to a mounting surface of a piston of the second shock strut, and an orifice plate that cooperates with the metering pin to meter an amount of fluid flow as the second shock strut is compressed. The metering pin includes flutes longitudinally arranged on the metering pin between first and second ends of the metering pin, the flutes having a varying depth so that a fluid flow through the flutes is greater at the second end than fluid flow through the flutes at the first end. A truck lever is coupled to both the first shock strut and the second shock strut such that the second shock strut pivots the truck lever relative to the first shock strut.
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