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6 条记录 (耗时 0.013 秒)

    Current limiting diode
    2.
    发明授权
    Current limiting diode 有权

    公开(公告)号：US12046894B2

    公开(公告)日：2024-07-23

    申请号：US17956924

    申请日：2022-09-30

    申请人： ROLLS-ROYCE plc

    发明人： David R Trainer ,  Mark Sweet

    IPC分类号： H02H9/02 ,  H10N10/17 ,  H10N10/82

    CPC分类号： H02H9/025 ,  H10N10/17 ,  H10N10/82

    摘要： There is provided a current limiting diode 200 comprising a gate 206, a source 202, a drain 204 electrically connected to the source by an n-channel or p-channel 220 and a thermoelectric generator 208; wherein the source and the gate are electrically connected by a fill structure 210, and wherein the thermoelectric generator is configured to: generate a thermoelectric voltage by absorbing heat from the n-channel or p-channel and rejecting heat to a heat sink in a current limiting condition; and apply the thermoelectric voltage between the gate and the source.

    Gas turbine engine
    3.
    发明授权
    Gas turbine engine 有权

    公开(公告)号：US11879413B2

    公开(公告)日：2024-01-23

    申请号：US17940480

    申请日：2022-09-08

    申请人： ROLLS-ROYCE plc

    发明人： Paul R Davies ,  Gareth E Moore ,  Stephen M Husband ,  David R Trainer ,  David P Scothern ,  Luke George

    IPC分类号： F02K3/06 ,  F01D15/10 ,  F02C7/141

    CPC分类号： F02K3/06 ,  F01D15/10 ,  F02C7/141 ,  F05D2220/323 ,  F05D2220/36 ,  F05D2260/213 ,  F05D2260/606

    摘要： An aircraft gas turbine engine includes a heat exchanger module, and a core engine. The core engine includes an intermediate-pressure compressor, high-pressure compressor, and high and low-pressure turbines. The high-pressure compressor rotationally connects to the high-pressure turbine by a first shaft, and the intermediate-pressure compressor rotationally connects to the low-pressure turbine by a second shaft. The heat exchanger module fluidly communicates with the core engine by an inlet duct. The heat exchanger module includes a central hub and multiple heat transfer elements extending radially from the hub and spaced in a circumferential array, for heat energy transfer from a first fluid within the elements to an inlet airflow passing over a surface of the elements prior to airflow entry into an inlet to the core engine. The gas turbine engine further includes a first electric machine rotationally connected to the first shaft, and positioned downstream of the heat exchanger module.

    Voltage converter
    6.
    发明授权
    Voltage converter 有权

    公开(公告)号：US11121639B2

    公开(公告)日：2021-09-14

    申请号：US16747760

    申请日：2020-01-21

    申请人： ROLLS-ROYCE plc

    发明人： David R Trainer ,  Zhigang Sun ,  Ellis F H Chong

    IPC分类号： H02M7/219 ,  F02C6/00 ,  H02P9/30 ,  H02M1/14

    摘要： Disclosed herein is a converter for converting an AC voltage to a DC voltage, the converter comprising: a first H-bridge circuit comprising a first AC terminal for receiving an AC voltage, a second AC terminal, a first DC terminal and a second DC terminal; a second H-bridge circuit comprising a first AC terminal for receiving an AC voltage, a second AC terminal, a first DC terminal and a second DC terminal; an isolation block arranged between the second AC terminal of the first H-bridge circuit and the second AC terminal of the second H-bridge circuit; and a DC voltage output of the converter with a first terminal and a second terminal; wherein: the first terminal of the DC voltage output is connected to the first DC terminal of the first H-bridge circuit and the first DC terminal of the second H-bridge circuit; and the second terminal of the DC voltage output is connected to the second DC terminal of the first H-bridge circuit and the second DC terminal of the second H-bridge circuit.