Supplemental Engine Power Control
    2.
    发明公开

    公开(公告)号:US20240336356A1

    公开(公告)日:2024-10-10

    申请号:US18539741

    申请日:2023-12-14

    IPC分类号: B64C27/12 B64D31/12

    CPC分类号: B64C27/12 B64D31/12

    摘要: A rotorcraft has a drive system including a main rotor coupled to a main rotor gearbox to rotate the main rotor at a rotor speed, a main engine coupled to the drive system to provide a first power, a supplemental engine coupled, when a first clutch is engaged, to the drive system to provide a second power additive to the first power, and a control system operable to control the main engine and the supplemental engine to provide a total power demand, where the main engine is controlled based on variations in rotor speed and a power compensation command to produce the first power, and the supplemental engine is controlled to produce the second power in response to a supplemental power demand.

    Variable incidence wing aircraft having a wing stowage mode

    公开(公告)号:US12084175B2

    公开(公告)日:2024-09-10

    申请号:US17720089

    申请日:2022-04-13

    摘要: An aircraft includes a fuselage and a wing assembly that is rotatable between a substantially perpendicular orientation relative to the fuselage in flight modes and a substantially parallel orientation relative to the fuselage in a wing stowage mode. The wing assembly includes a wing that is pivotable between forward flight and VTOL orientations by a pivot angle. A distributed thrust array is coupled to the wing that includes outboard and inboard propulsion assemblies, each propulsion assembly having an axis of rotation that has a fixed angle relative to a chord axis of the wing. In a VTOL flight mode, the axis of rotation of each propulsion assembly is substantially vertical and the wing is in the VTOL orientation. In a forward flight mode, the wing is in the forward flight orientation and the axis of rotation of each propulsion assembly is tilted forward from the vertical by the pivot angle.

    EXTREME THERMAL-FIT INSTALLATION FIXTURE
    6.
    发明公开

    公开(公告)号:US20240278935A1

    公开(公告)日:2024-08-22

    申请号:US18172837

    申请日:2023-02-22

    IPC分类号: B64F5/10 F16C35/06 F16C43/04

    摘要: A fixture for installing a bearing race around a mast at a particular location is described. The fixture includes a plurality of vertical rails; a mast retention assembly positioned in between the plurality of rails and connected to inner surfaces of the rails, the mast retention assembly including a mast retention opening for receiving the mast therethrough, the mast retention assembly maintaining the mast in a vertical orientation when the mast is disposed through the mast retention opening; and a shuttle translatably connected to inner surfaces of the rails, the shuttle configured to retain the bearing race in a bearing race retention opening of the shuttle and to translate the bearing race from an upper end of the mast as the mast is disposed through the mast retention opening, wherein the mast passes through an inner opening of the bearing race, and to the particular position on the mast.

    THERMALLY EFFICIENT BATTERY CELL ASSEMBLY
    7.
    发明公开

    公开(公告)号:US20240258556A1

    公开(公告)日:2024-08-01

    申请号:US18594587

    申请日:2024-03-04

    IPC分类号: H01M10/04 H01M50/166

    CPC分类号: H01M10/0431 H01M50/166

    摘要: A battery cell assembly, including a rolled cell formed from a first electrode and a second electrode rolled together about a longitudinal axis. The rolled cell includes a primary section in which the first electrode and the second electrode overlap in a radial direction from the longitudinal axis, and a first extension end extending from a first longitudinal end of the primary section and formed from a first edge section of the first electrode. The first edge section includes a first folded portion folded to contact an adjacent portion of the first edge section. The battery cell assembly further includes a first end cap coupled to the rolled cell and contacting the first folded portion.

    Aircraft Actuator Verification System and Method

    公开(公告)号:US20240246698A1

    公开(公告)日:2024-07-25

    申请号:US18159461

    申请日:2023-01-25

    IPC分类号: B64F5/60 B64D45/00

    CPC分类号: B64F5/60 B64D45/00

    摘要: In an embodiment, an aircraft includes an actuator and a flight control computer interfaced with the actuator. The flight control computer is configured to: increase an initiating force output by an initiating channel of the actuator; stop the increasing of the initiating force in response to observing restraining forces on restraining channels of the actuator; hold the initiating force at a quiescent initiating value while the restraining channels hold the restraining forces at quiescent restraining values; increase the initiating force to a target initiating value while the restraining channels increase the restraining forces to target restraining values; calculate a force fight test result by summing a difference between the target initiating value and the quiescent initiating value with differences between the target restraining values and the quiescent restraining values; and indicate the actuator failed verification in response to the force fight test result being greater than a first predetermined threshold.

    ELECTRIC TILTROTOR AIRCRAFT WITH FIXED MOTORS

    公开(公告)号:US20240246665A1

    公开(公告)日:2024-07-25

    申请号:US18624806

    申请日:2024-04-02

    IPC分类号: B64C27/28 B64C29/00

    CPC分类号: B64C27/28 B64C29/0033

    摘要: A rotor system for an aircraft includes a rotor assembly comprising a plurality of rotor blades connected to a rotor mast, wherein the rotor assembly is tiltable relative to a wing of the aircraft between a first position corresponding to an airplane mode of the aircraft and a second position corresponding to a helicopter mode of the aircraft; and a drive system for providing rotational energy to the rotor assembly via the rotor mast. The drive system includes at least one electric motor for generating rotational energy to a motor shaft; and a gearbox connected to receive rotational energy from the at least one electric motor via the motor shaft and to provide rotational energy to the rotor mast via a rotor shaft, wherein the at least one electric motor is fixed relative to the wing of the aircraft.