Hybrid electric aircraft and powerplant arrangements

    公开(公告)号:US11912422B2

    公开(公告)日:2024-02-27

    申请号:US16998881

    申请日:2020-08-20

    CPC classification number: B64D27/24 B64D27/12 B64D2027/026

    Abstract: A hybrid electric aircraft powerplant arrangement can include a first wing pair of powerplants for a first wing of an aircraft, the first wing pair comprising a first electric powerplant configured to drive a first air mover and a first heat engine powerplant configured to drive a second air mover separate from the first air mover. The arrangement can include a second wing pair of powerplants for a second wing of the aircraft, the second wing pair comprising a second electric powerplant configured to drive a third air mover separate from the first and second air movers, and a second heat engine powerplant configured to drive a fourth air mover separate from the first, second, and third air movers.

    VORTEX TURBINES FOR A HYBRID-ELECTRIC AIRCRAFT

    公开(公告)号:US20210070458A1

    公开(公告)日:2021-03-11

    申请号:US17013140

    申请日:2020-09-04

    Abstract: An aircraft propulsion system includes a hybrid-electric power plant for delivering power to an air mover for propelling an aircraft. The hybrid-electric power plant includes a heat engine operatively connected to a first air mover, and an electric motor operatively connected to a second air mover. The second air mover is positioned on a wing of the aircraft outboard from the heat engine. A method for reducing trailing vortices includes powering a first air mover of an aircraft with a heat engine during a take-off stage, a climb stage, a cruise-stage and/or a descent stage. The method includes powering a second air mover of the aircraft with an electrical motor during the take-off stage and/or the climb stage. The method includes freewheeling the second air mover during the cruise stage and/or the descent stage to generate mechanical energy and reduce wing tip vortices.

    SERIES HYBRID ARCHITECTURES USING COMPOUNDED DOUBLY FED MACHINES

    公开(公告)号:US20200282819A1

    公开(公告)日:2020-09-10

    申请号:US16293822

    申请日:2019-03-06

    Abstract: Provided are embodiments of a system including a series hybrid architecture using compounded doubly fed induction machines. Embodiments include a controller configured to control the operation of the system, and a power source configured to convert a first form of energy to a second form of energy. Embodiments also include a first machine configured to generate power, wherein the first machine is mechanically coupled to the power source, and a second machine configured to control equipment, wherein the first machine is electrically coupled to the second machine. Embodiments further include methods for operating the series hybrid architecture using the compounding doubly fed induction machines.

    ELECTRICAL MACHINE DISCONNECTION SYSTEMS
    6.
    发明申请

    公开(公告)号:US20200220442A1

    公开(公告)日:2020-07-09

    申请号:US16242729

    申请日:2019-01-08

    Abstract: A hybrid drive system can include a shaft, an electrical machine comprising a rotor and a stator, and a mechanical disconnect system connecting the rotor to the shaft. The mechanical disconnect system is configured to mechanically connect the rotor to the shaft in a first state and to mechanically disconnect the rotor from the shaft in a second state such that rotor does not drive the shaft or such that the rotor is not driven by the shaft. The rotor can be a permanent magnet rotor, for example.

    ELECTRICAL SYSTEM FOR VEHICLES HAVING OVERVOLTAGE PROTECTION

    公开(公告)号:US20200186077A1

    公开(公告)日:2020-06-11

    申请号:US16216490

    申请日:2018-12-11

    Abstract: An electrical system for a vehicle can include a power supply and one or more electric motors comprising one or more electric motor controllers operatively connected to the power supply to selectively receive electrical energy from the power supply to provide electrical energy to one or more electric motors. The one or more electric motor controller can have one or more switches and operatively connected between the power supply and the one or more electric motors. The electric motor controller can be configured to modify the electrical path between the power supply and the electric motor using the one or more switches to cause at least one of a shunt to the power supply or a shunt to the electrical motor drives in an overvoltage state. The system can also include an electrical load operatively connected to the power supply. The electrical motor controller can be configured to provide overvoltage protection to the electrical load in the overvoltage state without secondary overvoltage protection circuitry between the power supply and the electrical load.

    Dual-output generators
    8.
    发明授权

    公开(公告)号:US10027210B2

    公开(公告)日:2018-07-17

    申请号:US14565697

    申请日:2014-12-10

    Abstract: A dual-output generator includes a first generator with a rotor, a second generator with a rotor, and first and second power converters. The rotor of the first generator is coupled to the rotor of the second generator for common rotation with the rotor of the first generator. The first power converter connects electrically to the first generator for converting rotation of the first generator rotor into direct current power. The second power converter connects electrically to the second generator for converting rotation of the second generator rotor into constant frequency alternating current power.

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