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公开(公告)号：US11649041B2
公开(公告)日：2023-05-16
申请号：US16934856
申请日：2020-07-21
IPC分类号： B64C25/28
CPC分类号： B64C25/28
摘要： A method for extending a landing gear system for a vehicle is disclosed. The landing gear system includes a first landing gear assembly and a second landing gear assembly. The method includes the steps of sensing a first load on the first landing gear assembly after the first landing gear assembly has reached a wheels-on-ground state and comparing the first load to a first target value. The method further includes the step of controlling an extension speed of the first landing gear assembly according to a difference between the first load and the first target value.
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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：US11541918B2
公开(公告)日：2023-01-03
申请号：US16828230
申请日：2020-03-24
摘要： A disclosed method extends a support system for a maglev vehicle, the support system having at least a first landing gear assembly and a second landing gear assembly. The method includes the steps of determining a weight-on-wheels status for each of the first and the second landing gear assemblies and determining a distance from each of the first and second landing gear assemblies to a support surface. First and second extension speeds are determined for each of the first and second landing gear assemblies, respectively. The first landing gear assembly is extended at the first extension speed until the first landing gear assembly reaches a weight-on-wheels condition, and the second landing gear assembly is extended at the second extension speed until the second landing gear assembly reaches the weight-on-wheels condition.
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公开(公告)号：US11440416B2
公开(公告)日：2022-09-13
申请号：US16804441
申请日：2020-02-28
IPC分类号： B60L13/06
摘要： In some embodiments, a control unit for a vehicle is provided. The vehicle may be a maglev vehicle. The control unit is configured to autonomously control positions of landing gear on the vehicle that are extendible and retractable. In some embodiments, the control unit is configured to detect a change in a weight-on-wheels state of the vehicle, and to transition between passively controlling extension or retraction of the landing gear and actively controlling the extension distance of the landing gear in order to maintain a desired distance between the vehicle and a levitation mechanism.
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公开(公告)号：US20210347390A1
公开(公告)日：2021-11-11
申请号：US16868436
申请日：2020-05-06
摘要： A passive lateral stability system maintains the position of a vehicle relative to a guideway. The system includes first and second guide assemblies that urge the vehicle away from first and second electrically conductive guide walls, respectively. The first guide assembly includes a wheel configured to reciprocate toward and away from the first guide wall. A biasing element bias biases the wheel toward the first guide wall. The system further includes a magnetic element associated with the wheel, wherein movement of the magnetic element relative to the first guide wall produces a magnetic force that biases the wheel away from the first guide wall. A second guide assembly is mounted to the vehicle and urges the vehicle away from the second guide wall.
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公开(公告)号：US20210300445A1
公开(公告)日：2021-09-30
申请号：US16828230
申请日：2020-03-24
摘要： A disclosed method extends a support system for a maglev vehicle, the support system having at least a first landing gear assembly and a second landing gear assembly. The method includes the steps of determining a weight-on-wheels status for each of the first and the second landing gear assemblies and determining a distance from each of the first and second landing gear assemblies to a support surface. First and second extension speeds are determined for each of the first and second landing gear assemblies, respectively. The first landing gear assembly is extended at the first extension speed until the first landing gear assembly reaches a weight-on-wheels condition, and the second landing gear assembly is extended at the second extension speed until the second landing gear assembly reaches the weight-on-wheels condition.
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公开(公告)号：US20210268913A1
公开(公告)日：2021-09-02
申请号：US16804441
申请日：2020-02-28
IPC分类号： B60L13/06
摘要： In some embodiments, a control unit for a vehicle is provided. The vehicle may be a maglev vehicle. The control unit is configured to autonomously control positions of landing gear on the vehicle that are extendible and retractable. In some embodiments, the control unit is configured to detect a change in a weight-on-wheels state of the vehicle, and to transition between passively controlling extension or retraction of the landing gear and actively controlling the extension distance of the landing gear in order to maintain a desired distance between the vehicle and a levitation mechanism.
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公开(公告)号：US20210253137A1
公开(公告)日：2021-08-19
申请号：US16791903
申请日：2020-02-14
摘要： A method is disclosed for docking and undocking a hyperloop vehicle in a station. The method includes the step of extending a support system to a first position, wherein the support system engages a surface to support the hyperloop vehicle at a first elevation. The method further includes the steps of moving the hyperloop vehicle to a predetermined docking position and engaging a coupler to fixedly position the hyperloop vehicle relative to a docking platform.
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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：US20240280092A1
公开(公告)日：2024-08-22
申请号：US18570582
申请日：2022-06-17
发明人： Tom LOVE , Andrew PLUMMER , Nathan SELL , Roy EVANS
IPC分类号： F04B17/00
CPC分类号： F04B17/003
摘要： A piezo-electric fluid pump is provided including a main housing; a fluid reservoir located within the main housing; a piston head moveably mounted within the main housing; a piezo-electric stack; a bias mechanism arranged to couple the piston head and piezo-electric stack and maintain the piezo-electric stack in compression; an outlet plate statically mounted within the main housing adjacent to the piston head, wherein the adjacent surfaces of the outlet plate and piston head define a pumping chamber; an inlet disc valve arranged to permit a one-way flow of fluid from the reservoir into the pumping chamber; and an outlet disc valve arranged to permit a one-way flow of fluid out of the pumping chamber. The combination of pre-loading of the piezo-electric stack in compression and use of inlet disc valve enables the piezo-electric pump to exhibit substantial improvement to the pressure and flow capability compared to other piezo-electric pumps.
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