中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

90 records (took 0.021 seconds)

    PERMANENT MAGNET GENERATOR BRAKES WITH PRESS SLIP FIT
    51.
    发明公开
    PERMANENT MAGNET GENERATOR BRAKES WITH PRESS SLIP FIT 审中-公开

    公开(公告)号：US20240266912A1

    公开(公告)日：2024-08-08

    申请号：US18105457

    申请日：2023-02-03

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Aaron Cooling ,  Glenn C. Lemmers, JR. ,  Andreas C. Koenig

    IPC: H02K7/102 ,  H02K7/18 ,  H02K11/21 ,  H02K11/26

    CPC classification number: H02K7/102 ,  H02K7/1823 ,  H02K11/21 ,  H02K11/26

    Abstract: A system includes a permanent magnet generator (PMG) with a generator shaft defining a longitudinal axis. A brake system includes a brake shaft with a first end operatively connected to the generator shaft for selectively rotating with the generator shaft or braking to slow the generator shaft. A shear shaft is operatively connected to a second end of the brake shaft axially opposite the first end along the longitudinal axis. The brake system includes a press fit sleeve engaged about the brake shaft and an actuator. The actuator is operatively connected to actuate a pawl between a first position spaced apart from the press fit sleeve for normal operation of the PMG, and a second position engaged with the press fit sleeve to apply braking forces to the press fit sleeve and to the generator shaft.

    Main engine start using a dual permanent magnet generator system
    54.
    发明授权
    Main engine start using a dual permanent magnet generator system 有权

    公开(公告)号：US11927102B2

    公开(公告)日：2024-03-12

    申请号：US17837362

    申请日：2022-06-10

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Dhaval S. Patel ,  Andreas C. Koenig

    IPC: F01D15/10 ,  F02C7/268

    CPC classification number: F01D15/10 ,  F02C7/268 ,  F05D2220/768 ,  F05D2260/85

    Abstract: An aircraft electric power generation and start system (EPGSS) includes a main machine, a starter permanent magnet generator (PMG), a generator PMG, and a carrier injection sensorless (CIS) system. The main machine selectively operates in a start mode or a generator mode. The starter PMG includes a first PMG stator and a first PMG rotor and is configured to rotate along with the shaft. The generator PMG includes a second PMG stator and a second PMG rotor configured to rotate along with the shaft. The CIS system determines one or both of a PMG voltage and a PMG current corresponding to the first PMG during the start mode, and determines a rotational position of the main rotor based on one or both of the PMG voltage and the PMG current.

    Dual saturable reactor power supply
    55.
    发明授权
    Dual saturable reactor power supply 有权

    公开(公告)号：US11855559B2

    公开(公告)日：2023-12-26

    申请号：US17520872

    申请日：2021-11-08

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Dhaval Patel ,  Andreas C. Koenig

    IPC: G05F1/32 ,  H02P11/04 ,  H02M7/06 ,  H02P9/32

    CPC classification number: H02P11/04 ,  G05F1/32 ,  H02M7/06 ,  H02P9/32

    Abstract: A power supply system includes a first saturable reactor electrically connected to a first AC phase input, to a second AC phase input, and to a third AC phase input. The first saturable reactor is electrically connected to a first DC output. A second saturable reactor is electrically connected in parallel with the first saturable reactor to the first AC phase input, to the second AC phase input, and to the third AC phase input. The second saturable reactor is electrically connected to a second DC output. A reactor controller can be operatively connected to the first saturable reactor and to the second saturable reactor to regulate DC output voltage to the first and second DC outputs.

    EXCITER WINDINGS FOR WIDE SPEED OPERATION
    56.
    发明申请
    EXCITER WINDINGS FOR WIDE SPEED OPERATION 有权

    公开(公告)号：US20230012092A1

    公开(公告)日：2023-01-12

    申请号：US17370851

    申请日：2021-07-08

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Andreas C. Koenig ,  Dhaval Patel

    IPC: H02K11/33 ,  H02K1/16 ,  H02K3/12 ,  H02K7/00

    Abstract: An exciter comprises a stator armature defining a plurality of circumferentially spaced apart winding slots separated by respective stator teeth. first exciter winding with multiple phases, a second exciter winding with multiple phases. The individual windings of the first and second exciter windings are seated in the winding slots. For each phase of each of the first and second exciter windings there are two leads configured to connect to a generator control unit (GCU).

    Fault tolerant motor including redundant wye winding and dual-state neutral leads
    57.
    发明授权
    Fault tolerant motor including redundant wye winding and dual-state neutral leads 有权

    公开(公告)号：US11539322B1

    公开(公告)日：2022-12-27

    申请号：US17347721

    申请日：2021-06-15

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Joseph Kenneth Coldwate ,  Andreas C. Koenig

    IPC: H02P29/028 ,  H02P27/04

    Abstract: An electric motor system implements a redundant wye-wounded motor that includes first phase leads, second phase leads, first neutral leads, and second neutral leads. The first and second phase leads receive alternating current (AC) power from a power supply. A first phase-lead switch selectively connects the first phase leads to the power supply, and a second phase-lead switch selectively connects the second phase leads to the power supply. A first neutral-lead switch selectively connects the first neutral leads to the redundant wye-wounded motor, and a second neutral-lead switch selectively connects the second neutral leads to the redundant wye-wounded motor. A controller detects a circuit fault among a plurality of different types of circuit faults, and controls the operation of one or both of the primary neutral-lead switch and the second neutral-lead switch based on the circuit fault.

    FAULT TOLERANT MOTOR INCLUDING REDUNDANT WYE WINDING AND DUAL-STATE NEUTRAL LEADS
    59.
    发明申请
    FAULT TOLERANT MOTOR INCLUDING REDUNDANT WYE WINDING AND DUAL-STATE NEUTRAL LEADS 有权

    公开(公告)号：US20220399848A1

    公开(公告)日：2022-12-15

    申请号：US17347721

    申请日：2021-06-15

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Joseph Kenneth Coldwate ,  Andreas C. Koenig

    IPC: H02P29/028 ,  H02P27/04

    Abstract: An electric motor system implements a redundant wye-wounded motor that includes first phase leads, second phase leads, first neutral leads, and second neutral leads. The first and second phase leads receive alternating current (AC) power from a power supply. A first phase-lead switch selectively connects the first phase leads to the power supply, and a second phase-lead switch selectively connects the second phase leads to the power supply. A first neutral-lead switch selectively connects the first neutral leads to the redundant wye-wounded motor, and a second neutral-lead switch selectively connects the second neutral leads to the redundant wye-wounded motor. A controller detects a circuit fault among a plurality of different types of circuit faults, and controls the operation of one or both of the primary neutral-lead switch and the second neutral-lead switch based on the circuit fault.

    Inverter driven motor winding life extension
    60.
    发明授权
    Inverter driven motor winding life extension 有权

    公开(公告)号：US11108292B2

    公开(公告)日：2021-08-31

    申请号：US16176996

    申请日：2018-10-31

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Andreas C. Koenig ,  Joseph Kenneth Coldwate

    IPC: H02K3/28 ,  H02P25/18 ,  H02P25/22

    Abstract: An electric motor control system including an electric motor having a winding with a first and second end, a motor controller having a phase lead, the motor controller operable to direct a phase current to the phase lead. The electric motor control system also includes a first switching device that provides an electrical connection between the phase lead and the first end of the first winding when in a disabled state, and thereby flowing the phase current from the phase lead to the first end of the first winding, and a second switching device operably connected to the motor controller and providing an electrical connection between the second end of the first winding and a common point, when in an enabled state. The motor controller is operable to change the state of the first switching device to enabled, and the second switching device to disabled, under selected conditions.

Patent Agency Ranking