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公开(公告)号：WO2022155748A1
公开(公告)日：2022-07-28
申请号：PCT/CA2022/050088
申请日：2022-01-21
发明人： KLIM, Graeme Peter Arthur , CHENG, Justin Guang Yuang , DACKO, Leszek Marian , ELLIS, Andrew Michael
摘要： A brake assembly is configured for use with a wheel in an ambient environment. The wheel includes a rim rotatably mounted to an axle. The brake assembly includes a brake stack and an actuation assembly configured to selectively apply a force to the brake stack. A cover sealingly engaged the rim to at least partially define a fluidic barrier between a brake cavity and the ambient environment. The brake stack is located within the brake cavity..
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公开(公告)号：WO2022233608A1
公开(公告)日：2022-11-10
申请号：PCT/EP2022/060768
申请日：2022-04-22
发明人： LOVE, Tom , EVANS, Roy , SCHMIDT, Robert Kyle
摘要： This application relates to an aircraft braking system comprising: a braking actuator; a primary hydraulic fluid supply circuit configured to supply pressurised hydraulic fluid to the braking actuator; and a secondary hydraulic fluid supply circuit comprising a piezoelectric pump configured to supply pressurised hydraulic fluid to the braking actuator.
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公开(公告)号：WO2022150906A1
公开(公告)日：2022-07-21
申请号：PCT/CA2022/050029
申请日：2022-01-11
摘要： A landing gear system includes wheel rotatably coupled to an axle. A driveshaft extends through a cavity formed in the axle and is rotatable about an axis. A planetary gear includes a sun gear operably coupled to the drive shaft and a planet gear operably engaging the sun gear. The planetary gear further includes a ring gear that surrounds and is operably coupled to the planet gear so that rotation of the drive shaft rotates the ring gear. A clutch assembly is selectively moveable between an engaged state and a disengaged state. The clutch assembly transfers rotation of the ring gear to the wheel when the clutch assembly is in the engaged state, and the clutch assembly does not transfer rotation of the wheel to the ring gear when the clutch assembly is in the disengaged state.
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公开(公告)号：WO2022087717A1
公开(公告)日：2022-05-05
申请号：PCT/CA2021/051466
申请日：2021-10-19
发明人： SCHMIDT, Robert Kyle , SMITH, Jon
摘要： Techniques and methodologies for servicing a shock strut are provided that account for the variability in gas solubility of the shock strut while in-service. These examples incorporates knowledge of the shock strut's stoke history in order to estimate/predict the amount of gas in solution, its percentage saturation, etc. This may permit a more refined knowledge of the true servicing state of the shock strut.
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公开(公告)号：WO2021191090A1
公开(公告)日：2021-09-30
申请号：PCT/EP2021/057155
申请日：2021-03-19
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：WO2021175712A1
公开(公告)日：2021-09-10
申请号：PCT/EP2021/054824
申请日：2021-02-26
摘要： An aircraft landing gear assembly comprises 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：WO2021171159A1
公开(公告)日：2021-09-02
申请号：PCT/IB2021/051465
申请日：2021-02-22
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：WO2022094712A1
公开(公告)日：2022-05-12
申请号：PCT/CA2021/051570
申请日：2021-11-04
发明人： ELLIS, Andrew Michael , KLIM, Graeme Peter Arthur , GOHIL, Aakash , LEMONNIER, Pierrick Géraud Alexandre , DACKO, Leszek Marian
摘要： A method of determining a service interval for an actuator of a landing gear assembly is suitable for used with a landing gear assembly in which the actuator positions the landing gear assembly between a stowed position and a deployed position. The method includes the steps of determining an actuator travel value for a time interval and increasing a total actuator accumulated travel value by the actuator travel value for the time interval. The method further includes the step of comparing the total actuator accumulated travel value to a predetermined value.
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公开(公告)号：WO2021223016A1
公开(公告)日：2021-11-11
申请号：PCT/CA2021/050606
申请日：2021-04-30
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：WO2022016256A1
公开(公告)日：2022-01-27
申请号：PCT/CA2021/050987
申请日：2021-07-16
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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