Systems and methods for controlling aircraft main engine speeds by adjusting compressed air flow from an APU
    5.
    发明授权
    Systems and methods for controlling aircraft main engine speeds by adjusting compressed air flow from an APU 有权
    通过调整APU的压缩空气流量来控制飞机主机转速的系统和方法

    公开(公告)号:US09567906B2

    公开(公告)日:2017-02-14

    申请号:US14105844

    申请日:2013-12-13

    摘要: An aircraft engine system includes a main engine having a main engine speed; a starter coupled to the main engine and configured to drive the main engine with compressed air; and an auxiliary power unit (APU) system coupled to the starter and configured to provide the compressed air to the starter. The APU system includes an APU with a compressor to generate the compressed air, and an APU electronic control unit (ECU) coupled to the APU, the APU ECU configured to receive the engine speed of the main engine and to control operation of the APU to modify an amount of the compressed air to the starter based on the main engine speed.

    摘要翻译: 飞机发动机系统包括具有主发动机转速的主发动机; 起动器,其联接到所述主发动机并且构造成用压缩空气驱动所述主发动机; 以及耦合到起动器并被配置为将压缩空气提供给起动器的辅助动力单元(APU)系统。 APU系统包括具有用于产生压缩空气的压缩机的APU和耦合到APU的APU电子控制单元(ECU),APU ECU被配置为接收主机的发动机转速并控制APU的操作 基于主发动机转速将压缩空气的量修改到起动器。

    JET ENGINE, FLYING OBJECT, AND METHOD OF OPERATING A JET ENGINE
    6.
    发明申请
    JET ENGINE, FLYING OBJECT, AND METHOD OF OPERATING A JET ENGINE 审中-公开
    喷气发动机,飞行对象和操作喷气发动机的方法

    公开(公告)号:US20170009665A1

    公开(公告)日:2017-01-12

    申请号:US15121187

    申请日:2015-02-18

    摘要: A jet engine has an inlet which takes in air, a combustor which combusts fuel by using the air, and a fuel control section which controls supply of the fuel. The combustor has a fuel supplying section which supplies the fuel, injectors which inject the fuel. Each injector contains openings which inject the fuel. The fuel supplying section supplies the fuel to the injector in a flow rate according to a command of an autopilot. The fuel control section controls the injectors such that the number of the openings which inject the fuel or flow-path cross-section areas of the pipes which send the fuel in case of the low-speed is more than the number of the openings which inject the fuel or the flow-path cross-section areas of the pipes which send the fuel in case of the high-speed.

    摘要翻译: 喷气发动机具有吸入空气的入口,通过使用空气燃烧燃料的燃烧器,以及控制燃料供给的燃料控制部。 燃烧器具有供给燃料的燃料供给部,喷射燃料的喷射器。 每个喷射器包含喷射燃料的开口。 燃料供给部根据自动驾驶员的指令以流量将燃料供给到喷射器。 燃料控制部分控制喷射器,使得在低速的情况下喷射燃料的燃料或流路横截面积的发射燃料的数量大于喷射的开口的数量 在高速的情况下发送燃料的管道的燃料或流路横截面区域。

    ULTRASOUND FUEL FLOW SENSING AND CONTROL
    7.
    发明申请
    ULTRASOUND FUEL FLOW SENSING AND CONTROL 有权
    超声波燃油流量传感与控制

    公开(公告)号:US20160258798A1

    公开(公告)日:2016-09-08

    申请号:US15028055

    申请日:2014-10-16

    摘要: Methods and apparatus for measuring liquid fuel flows within a conduit are disclosed. An example flow sensor may include a conduit arranged to flow fuel therethrough along a flow axis, the conduit defining a flow area orthogonal to the flow axis. The flow sensor may further include a first transducer arranged to direct a first signal through the conduit proximate the flow area to a second transducer, the second transducer being arranged to direct a second signal through the conduit proximate the flow area to the first transducer, the first transducer being spaced apart from the second transducer by a signal path length, and in a direction parallel to the flow axis by an axial distance. The fuel flow measuring system may further include a processor arranged to calculate a fuel mass flow rate based on first and second signal transit times, known fuel properties and a fuel temperature.

    摘要翻译: 公开了用于测量导管内的液体燃料流的方法和设备。 示例性流量传感器可以包括布置成沿着流动轴线流过燃料的导管,该导管限定与流动轴线正交的流动区域。 流量传感器还可以包括第一传感器,其布置成将第一信号通过靠近流动区域的导管引导到第二换能器,第二换能器被布置成将第二信号通过靠近流动区域的导管引导到第一换能器, 第一换能器通过信号路径长度与第二换能器间隔开,并且在平行于流动轴线的方向上轴向距离。 燃料流量测量系统还可以包括处理器,其被布置成基于第一和第二信号传递时间,已知燃料性质和燃料温度来计算燃料质量流量。

    DISTRIBUTED FUEL CONTROL SYSTEM
    9.
    发明申请
    DISTRIBUTED FUEL CONTROL SYSTEM 审中-公开
    分配燃料控制系统

    公开(公告)号:US20160047550A1

    公开(公告)日:2016-02-18

    申请号:US14457373

    申请日:2014-08-12

    发明人: Gary M. McBrien

    IPC分类号: F23R3/28

    摘要: Distributed fuel control system and methods are disclosed. A distributed fuel control system may comprise a controller, a fuel delivery system, and fuel delivery system sensors and combustion sensors. The controller may output a control signal in response to at least one of the fuel delivery system sensor or the combustion sensors. In response, the fuel flow to individual multiplex fuel delivery unit may be controlled according to various methods. One such method includes determining a desired fuel pressure differential, directing a torque motor to set a pressure regulator to a position corresponding to the desired fuel pressure differential, determining a sensed fuel pressure differential, and adjusting the torque motor in response to a difference between the sensed fuel pressure differential and the desired fuel pressure differential.

    摘要翻译: 公开了分散燃料控制系统和方法。 分布式燃料控制系统可以包括控制器,燃料输送系统和燃料输送系统传感器和燃烧传感器。 控制器可以响应于燃料输送系统传感器或燃烧传感器中的至少一个输出控制信号。 作为响应,可以根据各种方法来控制到个体多路复用燃料输送单元的燃料流量。 一种这样的方法包括确定期望的燃料压力差,引导扭矩电动机将压力调节器设置到对应于期望燃料压力差的位置,确定感测到的燃料压力差,以及响应于所述燃料压力差之间的差异来调节转矩电动机 感测的燃料压力差和期望的燃料压力差。

    SYSTEMS AND METHODS FOR CONTROLLING AIRCRAFT MAIN ENGINE SPEEDS
    10.
    发明申请
    SYSTEMS AND METHODS FOR CONTROLLING AIRCRAFT MAIN ENGINE SPEEDS 有权
    用于控制飞机主发动机速度的系统和方法

    公开(公告)号:US20150167553A1

    公开(公告)日:2015-06-18

    申请号:US14105844

    申请日:2013-12-13

    IPC分类号: F02C7/057 F02C7/26

    摘要: An aircraft engine system includes a main engine having a main engine speed; a starter coupled to the main engine and configured to drive the main engine with compressed air; and an auxiliary power unit (APU) system coupled to the starter and configured to provide the compressed air to the starter. The APU system includes an APU with a compressor to generate the compressed air, and an APU electronic control unit (ECU) coupled to the APU, the APU ECU configured to receive the engine speed of the main engine and to control operation of the APU to modify an amount of the compressed air to the starter based on the main engine speed.

    摘要翻译: 飞机发动机系统包括具有主发动机转速的主发动机; 起动器,其联接到所述主发动机并且构造成用压缩空气驱动所述主发动机; 以及耦合到起动器并被配置为将压缩空气提供给起动器的辅助动力单元(APU)系统。 APU系统包括具有用于产生压缩空气的压缩机的APU和耦合到APU的APU电子控制单元(ECU),APU ECU被配置为接收主机的发动机转速并控制APU的操作 基于主发动机转速将压缩空气的量修改到起动器。