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    Low inductance capacitor assembly
    1.
    发明申请
    Low inductance capacitor assembly 审中-公开

    公开(公告)号：US20170338044A1

    公开(公告)日：2017-11-23

    申请号：US15669261

    申请日：2017-08-04

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Kevin Allan DOOLEY ,  Joshua BELL

    IPC: H01G4/38 ,  H01G4/232 ,  H01G4/236 ,  H01G4/30

    Abstract: A low-inductance capacitor assembly (12) is provided. The capacitor assembly (12) includes a positive terminal plate (16), a negative terminal plate (18) and an array (20) of capacitors (22) disposed between and electrically coupled to the positive terminal plate (16) and the negative terminal plate (18). A passage (30) extends through the positive terminal plate (16), the negative terminal plate (18) and through a void (35) formed within the array (20) of capacitors (22). The passage (30) may allow routing of a conductor (14) through the capacitor assembly (12).

    LOW INDUCTANCE CAPACITOR ASSEMBLY
    3.
    发明申请
    LOW INDUCTANCE CAPACITOR ASSEMBLY 有权
    低电感电容器总成

    公开(公告)号：US20140245581A1

    公开(公告)日：2014-09-04

    申请号：US14278581

    申请日：2014-05-15

    Applicant: Pratt & Whitney Canada Corp.

    Inventor： Kevin Allan DOOLEY ,  Joshua BELL

    IPC: H01G4/30

    CPC classification number: H01G4/30 ,  H01G4/232 ,  H01G4/236 ,  H01G4/38 ,  Y10T29/43

    Abstract: A low-inductance capacitor assembly (12) is provided. The capacitor assembly (12) includes a positive terminal plate (16), a negative terminal plate (18) and an array (20) of capacitors (22) disposed between and electrically coupled to the positive terminal plate (16) and the negative terminal plate (18). A passage (30) extends through the positive terminal plate (16), the negative terminal plate (18) and through a void (35) formed within the array (20) of capacitors (22). The passage (30) may allow routing of a conductor (14) through the capacitor assembly (12).

    Abstract translation: 提供了一种低电感电容器组件（12）。 电容器组件（12）包括正极端子板（16），负极端子板（18）和设置在正极端子板（16）之间并电耦合到正极端子板（16）的电容器（22）的阵列（20） 板（18）。 通道（30）延伸穿过正端子板（16），负端子板（18）并且穿过形成在电容器（22）的阵列（20）内的空隙（35）。 通道（30）可以允许导体（14）穿过电容器组件（12）。

    GAS TURBINE FUEL CONTROL SYSTEM
    5.
    发明申请
    GAS TURBINE FUEL CONTROL SYSTEM 审中-公开
    燃气涡轮燃料控制系统

    公开(公告)号：US20160153364A1

    公开(公告)日：2016-06-02

    申请号：US14818785

    申请日：2015-08-05

    Applicant: Pratt & Whitney Canada Corp.

    Inventor： Joseph H. BRAND ,  Kevin Allan DOOLEY

    IPC: F02C9/28 ,  F02C3/20

    CPC classification number: F02C9/28 ,  F02C3/20 ,  F02C9/40 ,  F05D2220/32 ,  F05D2270/31

    Abstract: A method of controlling a flow of a fuel mixture of different types of fuel in a gas turbine engine is described which includes determining a combustive energy value of an input of the fuel mixture in the engine, extracting fuel schedule data from a fuel schedule established for a reference fuel, determining a desired fuel mixture flow rate by adapting the fuel schedule data to the fuel mixture based on the combustive energy value, and controlling a fuel metering device of the engine such that the fuel mixture flow rate corresponds to the desired fuel mixture flow rate.

    Abstract translation: 描述了一种控制燃气涡轮发动机中不同类型燃料的燃料混合物的流动的方法，其包括确定发动机中燃料混合物的输入的燃烧能量值，从为 参考燃料，通过基于燃烧能量值将燃料调度数据调整到燃料混合物来确定期望的燃料混合物流量，以及控制发动机的燃料计量装置，使得燃料混合物流量对应于期望的燃料混合物 流量。

    RELIGHTING A TURBOFAN ENGINE
    6.
    发明申请
    RELIGHTING A TURBOFAN ENGINE 有权
    相关的涡轮发动机

    公开(公告)号：US20150033754A1

    公开(公告)日：2015-02-05

    申请号：US14503565

    申请日：2014-10-01

    Applicant: Pratt & Whitney Canada Corp.

    Inventor： Kevin Allan DOOLEY

    IPC: F02C7/262

    CPC classification number: F02C7/262 ,  F02C7/32

    Abstract: The method and apparatus for in-flight relighting of a turbofan engine involve in one aspect selectively controlling an accessory drag load on one or more windmilling rotors to permit control of the windmill speed to an optimum value for relight conditions.

    Abstract translation: 涡轮风扇发动机的飞行中重新照明的方法和装置在一个方面涉及一个方面，选择性地控制一个或多个风力转子上的附件牵引载荷，以允许将风车速度控制到重新照明条件的最佳值。

    RELIGHTING A TURBOFAN ENGINE
    7.
    发明申请
    RELIGHTING A TURBOFAN ENGINE 有权

    公开(公告)号：US20150033753A1

    公开(公告)日：2015-02-05

    申请号：US14503541

    申请日：2014-10-01

    Applicant: Pratt & Whitney Canada Corp.

    Inventor： Kevin Allan DOOLEY

    IPC: F02C7/262

    CPC classification number: F02C7/262 ,  F02C7/32

    Abstract: The method and apparatus for in-flight relighting of a turbofan engine involve in one aspect selectively controlling an accessory drag load on one or more windmilling rotors to permit control of the windmill speed to an optimum value for relight conditions.

    TANDEM ELECTRIC MACHINE ARRANGEMENT
    8.
    发明申请
    TANDEM ELECTRIC MACHINE ARRANGEMENT 有权
    TANDEM电机布置

    公开(公告)号：US20130249338A1

    公开(公告)日：2013-09-26

    申请号：US13895784

    申请日：2013-05-16

    Applicant: Pratt & Whitney Canada Corp.

    Inventor： Kevin Allan DOOLEY ,  Joseph BRAND

    IPC: H02K16/02 ,  H02K16/00

    CPC classification number: H02K16/02 ,  F01D15/10 ,  F02C7/32 ,  F05D2220/766 ,  F05D2220/768 ,  H02K1/2786 ,  H02K1/30 ,  H02K7/1823 ,  H02K16/00 ,  H02K16/04 ,  H02K21/222 ,  H02K21/48

    Abstract: The tandem electric machine arrangement comprises an outside rotor having two axially spaced-apart sets of circumferentially-disposed permanent magnets. It also comprises an inside stator having at least two electrically-independent windings, the at least two windings axially spaced apart from one another and disposed relative to the magnet sets to thereby be magnet coupled to a respective one of the sets of permanent magnets during rotation of the rotor. One of the rotor and the stator is provided in two separate pieces, each piece supported from opposite axial sides of the electric machine relative to one another. The other of the rotor and the stator is supported from substantially centrally of the two pieces.

    Abstract translation: 串联电机装置包括具有两个轴向间隔开的周向设置的永磁体的外转子。 它还包括具有至少两个电独立绕组的内部定子，所述至少两个绕组彼此轴向间隔开并相对于磁体组设置，从而在旋转期间磁耦合到相应的一组永磁体 的转子。 转子和定子中的一个设置在两个分开的部件中，每个部件相对于彼此从电机的相对的轴向侧面支撑。 转子和定子中的另一个从两个部件的大致中心支撑。

    SYSTEM FOR DETECTING SHAFT SHEAR EVENT
    9.
    发明申请
    SYSTEM FOR DETECTING SHAFT SHEAR EVENT 审中-公开
    用于检测轴剪事件的系统

    公开(公告)号：US20140121934A1

    公开(公告)日：2014-05-01

    申请号：US13661436

    申请日：2012-10-26

    Applicant: Pratt & Whitney Canada Corp.

    Inventor： Kevin Allan DOOLEY

    IPC: F02C9/46

    CPC classification number: F02C9/46 ,  F01D21/06

    Abstract: Systems and methods for detecting a shaft shear event in a turbine engine. An accelerometer coupled to the engine detects an axial acceleration indicative of a shaft shear event in the engine. A control system is configured to, in response to the detected axial acceleration, transmit a signal to initiate a shut down of a fuel system of the engine.

    Abstract translation: 用于检测涡轮发动机中的轴剪切事件的系统和方法。 耦合到发动机的加速度计检测到指示发动机中的轴剪切事件的轴向加速度。 控制系统被配置为响应于检测到的轴向加速度而传送信号以启动发动机的燃料系统的关闭。

    ENGINE STARTING SYSTEM USING STORED ENERGY
    10.
    发明申请
    ENGINE STARTING SYSTEM USING STORED ENERGY 审中-公开

    公开(公告)号：US20200166013A1

    公开(公告)日：2020-05-28

    申请号：US16751877

    申请日：2020-01-24

    Applicant: PRATT & WHITNEY CANADA CORP

    Inventor： Kevin Allan DOOLEY ,  Keith Morgan ,  Tatjana Pekovic

    IPC: F02N11/08 ,  H02P9/48 ,  H02P1/00 ,  F02C7/26

    Abstract: There is described a method for and system for starting at least one engine from a twin engine installation. The starting system comprises a first engine arrangement comprising a first electric machine having a single rotor dual stator configuration, a first dual channel power control unit coupled to the first electric machine, and a first dual channel full authority digital engine control (FADEC) coupled to the first dual channel power control unit; a second engine arrangement comprising a second electric machine having a single rotor dual stator configuration, a second dual channel power control unit coupled to the second electric machine, and a second dual channel full authority digital engine control (FADEC) coupled to the second dual channel power control unit; an energy storage unit coupled to the first engine arrangement and the second engine arrangement and having at least a first super-capacitor and a second super-capacitor; and a DC to DC converter configured to receive a first voltage level from a power source, increase the first voltage level to a second voltage level, and charge the first super-capacitor and the second super-capacitor to the second voltage level.

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