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    Tilting landing gear systems and methods
    136.
    发明授权
    Tilting landing gear systems and methods 有权

    公开(公告)号：US11958592B2

    公开(公告)日：2024-04-16

    申请号：US17873865

    申请日：2022-07-26

    申请人： JetZero, Inc.

    发明人： Jennifer Whitlock ,  Joshua B. Long ,  Cristina Donastorg ,  Brendan Kennelly ,  Mark A. Page

    IPC分类号： B64C25/22 ,  B64C25/00

    CPC分类号： B64C25/001 ,  B64C25/22 ,  B64C2025/008

    摘要： Systems and methods for mechanically rotating an aircraft about its center-of-gravity (CG) are disclosed. The system can enable the rear, or main, landing gear to squat, while the nose landing gear raises to generate a positive pitch angle for the aircraft for takeoff or landing. The system can also enable the nose gear and main gear to return to a relatively level fuselage attitude for ground operations. The system can include one or more hydraulically linked hydraulic cylinders to control the overall height of the nose gear and the main gear. Because the hydraulic cylinders are linked, a change on the length of the nose cylinder generates a proportional, and opposite, change in the length of the main cylinder, and vice-versa. A method and control system for monitoring and controlling the relative positions of the nose gear and main gear is also disclosed.

    Compact aircraft actuator system
    137.
    发明授权
    Compact aircraft actuator system 有权

    公开(公告)号：US11912399B2

    公开(公告)日：2024-02-27

    申请号：US17675789

    申请日：2022-02-18

    申请人： GOODRICH CORPORATION

    发明人： Jason Bradley Allen

    IPC分类号： B64C25/22 ,  F16H19/00

    CPC分类号： B64C25/22 ,  F16H19/005

    摘要： An aircraft actuation system is disclosed that includes a pair of cylinders, a piston movably disposed in each cylinder, and a roller train that extends between the pistons in the two cylinders. A portion of the roller train is disposed beyond the cylinders to engage a pinion. Movement of the pistons in the two cylinders in opposite directions produces a corresponding movement of the roller train to in turn rotate the pinion. The roller train may be maintained in compression between its two ends by fluid pressure exerted on a common face of each of the pistons in the two cylinders. The cylinders may be disposed in non-colinear relation, including in parallel relation to one another. A guide may be used to maintain rollers of the roller train in a proper orientation for entry into a space between an outer race and the pinion.

    ACTUATOR WITH OFFSET SUPPLY PORT
    140.
    发明申请
    ACTUATOR WITH OFFSET SUPPLY PORT 有权

    公开(公告)号：US20230045934A1

    公开(公告)日：2023-02-16

    申请号：US17794209

    申请日：2021-01-20

    申请人： SAFRAN LANDING SYSTEMS

    发明人： Yves COURTOIS DE LOURMEL ,  Sébastien MESSE ,  Jean-Baptiste KAMIS ,  Arnaud LE BRETON ,  Nicolas NGUYEN

    IPC分类号： F15B15/14 ,  B64C25/22

    摘要： An actuator includes a body and at least a first offset connection port that is connected to the body by a first duct projecting from the body. The first connection port is mechanically connected to the body at least by first and second struts. The first strut and the second strut extend from the first connection port, respectively, to a first segment of the body and to a second segment of the body that is axially spaced apart from the first segment.
    An undercarriage includes such an actuator as its locking or unlocking actuator.