A GAS TURBINE BEARING SUPPORT STRUCTURE
    1.
    发明公开

    公开(公告)号:EP3712394A1

    公开(公告)日:2020-09-23

    申请号:EP20162663.7

    申请日:2020-03-12

    申请人: Rolls-Royce plc

    摘要: A gas turbine engine (10) having a bearing support structure (100) comprising:
    a bearing chamber (104);
    a first buffer fluid passage (110) disposed radially outwardly of the bearing chamber (104);
    a second buffer fluid passage (116) disposed radially outwardly of the first buffer fluid passage (110); and
    a core fluid passage (132) disposed radially outwardly of the second buffer fluid passage (116); the bearing chamber (104), first buffer fluid passage(110), second buffer fluid passage (116) and core fluid passage (132) being separated by respective hub walls.

    AIRCRAFT PROPULSION SYSTEM
    7.
    发明公开
    AIRCRAFT PROPULSION SYSTEM 审中-公开
    飞机推进系统

    公开(公告)号:EP3296212A1

    公开(公告)日:2018-03-21

    申请号:EP17187444.9

    申请日:2017-08-23

    申请人: Rolls-Royce plc

    摘要: An aircraft propulsion system (10) comprises at least first and second electrical generators (15a, 15b), each being configured to provide electrical power to a respective first and second AC electrical network (16a, 16b). The system (10) further comprises at least first and second AC electrical motors (19a, 19b) directly electrically coupled to a respective AC network (16a, 16b) and coupled to a respective propulsor(4), and a DC electrical network electrically coupled to the first and second AC networks (16a, 16b) via respective first and second AC to DC converters (17a, 17b), and to a further electrical motor 19c), the further electrical motor (19c) being coupled to a propulsor (4).

    摘要翻译: 飞机推进系统(10)包括至少第一和第二发电机(15a,15b),每个发电机被配置为向相应的第一和第二AC电网(16a,16b)提供电力。 系统(10)还包括直接电耦合到相应AC网络(16a,16b)并耦合到相应推进器(4)的至少第一和第二AC电动机(19a,19b),以及电耦合到DC电网 经由相应的第一和第二AC到DC转换器(17a,17b)以及到另一个电动机19c到第一和第二AC网络(16a,16b),所述另外的电动机(19c)联接到推进器(4 )。