TRANSIENT FAULT DETECTION METHODS AND SYSTEMS
    2.
    发明公开
    TRANSIENT FAULT DETECTION METHODS AND SYSTEMS 审中-公开
    TRANSIENTE FEHLERERKENNUNGSVERFAHREN UND SYSTEME

    公开(公告)号:EP3043097A1

    公开(公告)日:2016-07-13

    申请号:EP16150336.2

    申请日:2016-01-06

    IPC分类号: F16K37/00 F15B19/00 F15B20/00

    摘要: The present disclosure provides methods, systems, and computer-readable media for the detection of valve faults based on transient air pressure measurements. For example, a method for fault detection may comprise actuating a shut off valve (222) to an open position, determining a first air pressure of air in an enclosed space at a first time, determining a second air pressure of the air in the enclosed space at a second time and in response to actuation of the shut off valve (222) to an open position, subtracting the first air pressure and the second air pressure to obtain an actual pressure difference, comparing the actual pressure difference to a predetermined pressure difference, and determining, based on the transient comparison, whether at least one of the shut off valve (222) and a check valve (212) is in a failed state.

    摘要翻译: 本公开提供了用于基于瞬时气压测量来检测阀故障的方法,系统和计算机可读介质。 例如,用于故障检测的方法可以包括将截止阀(222)致动到打开位置,在第一时间确定封闭空间中的空气的第一空气压力,确定封闭空气中的空气的第二空气压力 空间,并且响应于关闭阀(222)的致动到打开位置,减去第一空气压力和第二空气压力以获得实际压力差,将实际压力差与预定压差进行比较 并且基于瞬时比较来确定截止阀(222)和止回阀(212)中的至少一个是否处于故障状态。

    AIR SUPPLY CONTROL DURING MOTORING OF A GAS TURBINE ENGINE
    4.
    发明公开
    AIR SUPPLY CONTROL DURING MOTORING OF A GAS TURBINE ENGINE 审中-公开
    燃气轮机发动机的供气控制

    公开(公告)号:EP3273007A1

    公开(公告)日:2018-01-24

    申请号:EP17182145.7

    申请日:2017-07-19

    IPC分类号: F01D19/02 F01D21/02 F02C7/277

    摘要: A system for motoring a gas turbine engine (10A, 10B) of an aircraft is provided. The system includes an air turbine starter (120A, 120B), a starter air valve (116A, 116B) operable to deliver compressed air to the air turbine starter (120A, 120B), and a controller (102A, 102B). The controller is operable to control motoring of the gas turbine engine (10A, 10B), detect a fault condition that prevents the controller (102A, 102B) from maintaining a motoring speed below a threshold level, and command a mitigation action that reduces delivery of the compressed air to the air turbine starter (120A, 120B) based on detection of the fault condition.

    摘要翻译: 提供了一种用于驱动飞机的燃气涡轮发动机(10A,10B)的系统。 该系统包括空气涡轮起动器(120A,120B),可操作以将压缩空气输送到空气涡轮起动器(120A,120B)的起动器空气阀(116A,116B)以及控制器(102A,102B)。 控制器可操作以控制燃气涡轮发动机(10A,10B)的驱动,检测防止控制器(102A,102B)将驱动速度维持在阈值水平以下的故障状况,并且命令减轻动作, 基于故障状况的检测将压缩空气输送到空气涡轮启动器(120A,120B)。

    BOWED ROTOR PREVENTION SYSTEM
    5.
    发明公开

    公开(公告)号:EP3686402A1

    公开(公告)日:2020-07-29

    申请号:EP20164205.5

    申请日:2017-02-10

    IPC分类号: F01D25/36 F02C7/277 F01D21/00

    摘要: A bowed rotor prevention system for a gas turbine engine includes a bowed rotor prevention motor 44 operable to drive rotation of the gas turbine engine through an engine accessory gearbox 40. The bowed rotor prevention system also includes a controller 46 operable to engage the bowed rotor prevention motor 44 and drive rotation of the gas turbine engine below an engine starting speed until a bowed rotor prevention threshold condition is met.

    SYSTEM AND METHOD FOR ROTATING A GAS TURBINE ENGINE DURING A MOTORING CYCLE

    公开(公告)号:EP3444464A1

    公开(公告)日:2019-02-20

    申请号:EP18184781.5

    申请日:2018-07-20

    IPC分类号: F02C7/26 F02C7/277

    摘要: Systems and methods for rotating a gas turbine engine (110) during a motoring cycle are provided. The system may comprise a controller (120) in electronic communication with an auxiliary power unit (APU) (130), a starter air valve (140), and a gas turbine engine (110). The APU (130) may supply compressed air to the starter air valve (140) which may supply the compressed air to an engine starter (150) in mechanical communication with the engine (110). The rotational speed of the engine (110) may be controlled by the engine starter (150) based on the pressure of the compressed air received from the starter air valve (140). The controller (120) may be configured to control airflow and air pressure through the system, by modulating the airflow from the APU (130) and/or from the starter air valve (140).

    CROSS ENGINE COORDINATION DURING GAS TURBINE ENGINE MOTORING
    7.
    发明公开
    CROSS ENGINE COORDINATION DURING GAS TURBINE ENGINE MOTORING 审中-公开
    燃气轮机发动机运转时的交叉发动机协调

    公开(公告)号:EP3296522A1

    公开(公告)日:2018-03-21

    申请号:EP17182126.7

    申请日:2017-07-19

    IPC分类号: F01D13/00 F02C6/00

    摘要: A system is provided for cross engine coordination during gas turbine engine motoring. The system includes a first gas turbine engine (10A) of a first engine system (100A), a first air turbine starter (120A) of the first engine system (100A), a first starter air valve (116A) of the first engine system (100A), and a controller (102A). The controller (102A) is operable to command the first starter air valve (116A) to control delivery of compressed air to the first air turbine starter (120A) during motoring of the first gas turbine engine (10A), monitor cross engine data of a second gas turbine engine (10B) of a second engine system (100B) to detect a present condition or a commanded action that modifies an aspect of the compressed air received at the first starter air valve (116A), and command an adjustment to the first engine system (100A) to compensate for the modified aspect of the compressed air based on the cross engine data.

    摘要翻译: 在燃气轮机发动机驱动期间提供用于交叉引擎协调的系统。 该系统包括第一发动机系统(100A)的第一燃气涡轮发动机(10A),第一发动机系统(100A)的第一空气涡轮起动器(120A),第一发动机系统(100A)的第一起动器空气阀(116A) (100A)和控制器(102A)。 控制器(102A)可操作以命令第一启动器空气阀(116A)在第一燃气涡轮发动机(10A)的驱动期间控制压缩空气向第一空气涡轮启动器(120A)的输送,监测第一燃气涡轮发动机 第二发动机系统(100B)的第二燃气涡轮发动机(10B),以检测修改在第一启动器空气阀(116A)接收的压缩空气的一个方面的当前状况或命令动作,并且命令对第一启动器空气阀 发动机系统(100A)基于交叉引擎数据补偿压缩空气的修改方面。

    ALTERNATING STARTER USE DURING MULTI-ENGINE MOTORING
    8.
    发明公开
    ALTERNATING STARTER USE DURING MULTI-ENGINE MOTORING 审中-公开
    交替起动器在多发动机运行期间使用

    公开(公告)号:EP3273006A1

    公开(公告)日:2018-01-24

    申请号:EP17181728.1

    申请日:2017-07-17

    摘要: A system is provided for alternating starter use during multi-engine motoring in an aircraft (5). The system includes a first engine starting system (101A) of a first engine (10A) and a controller (102A). The controller (102A) is operable to coordinate control of the first engine starting system (101A) to alternate use of power from a power source (114) relative to use of the power by one or more other engine starting systems (101 B) of the aircraft while maintaining a starting spool speed of the first engine (10A) below a resonance speed of the starting spool during motoring of the first engine (10A).

    摘要翻译: 提供了一种系统,用于在飞行器中的多发动机驱动期间交替起动器使用(5)。 该系统包括第一引擎(10A)的第一引擎启动系统(101A)和控制器(102A)。 控制器(102A)可操作以协调第一发动机起动系统(101A)的控制以相对于由一个或多个其他发动机起动系统(101B)的功率使用来自动力源(114)的交替使用动力 同时在第一发动机(10A)的驱动期间保持第一发动机(10A)的起动滑阀速度低于起动滑阀的共振速度。

    BOWED ROTOR PREVENTION SYSTEM
    9.
    发明公开
    BOWED ROTOR PREVENTION SYSTEM 审中-公开
    弓转子预防系统

    公开(公告)号:EP3205847A1

    公开(公告)日:2017-08-16

    申请号:EP17155612.9

    申请日:2017-02-10

    IPC分类号: F01D25/36 F02C7/277 F01D21/00

    摘要: A bowed rotor prevention system for a gas turbine engine includes a bowed rotor prevention motor 44 operable to drive rotation of the gas turbine engine through an engine accessory gearbox 40. The bowed rotor prevention system also includes a controller 46 operable to engage the bowed rotor prevention motor 44 and drive rotation of the gas turbine engine below an engine starting speed until a bowed rotor prevention threshold condition is met.

    摘要翻译: 用于燃气涡轮发动机的弓形转子预防系统包括弓形转子防止马达44,弓形转子预防马达44可操作以驱动燃气涡轮发动机通过发动机附件齿轮箱40旋转。弓形转子预防系统还包括控制器46,其可操作以接合弓形转子预防 马达44并驱动燃气涡轮发动机的旋转低于发动机启动速度,直到满足弓形转子预防阈值条件。