公开(公告)号：WO1990004134A1

公开(公告)日：1990-04-19

申请号：PCT/US1989004269

申请日：1989-09-29

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  SHEKLETON, Jack, R.

IPC: F23M09/00

CPC classification number: F23C7/004 ,  F23C3/00 ,  F23R3/14

Abstract: High flame stability and good starting qualities are obtained in a relatively smoke free hot gas generator including a housing (10) having an interior combustion chamber (12) with a diverging interior wall (20) that is generally a surface of revolution. An axially directed opening (18) is centered in the wall (20) and an outer, oxidant inlet (48), (52) is provided and includes swirler vanes (50) for introducing into the chamber (12) at the interior wall (20) a swirling, hollow body of oxidant such that centrifugal force will create a diverging hollow body of swirling oxidant on the interior wall (20). A central fuel inlet (52), (58) is located within the opening (18) and within the oxidant inlet (48), (52) and is generally concentric therewith. The fuel inlet (52), (58) includes swirler vanes (50) for introducing a hollow cone-like body of atomized fuel into the chamber (12).

公开(公告)号：WO1990001826A1

公开(公告)日：1990-02-22

申请号：PCT/US1989003164

申请日：1989-07-21

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  SHEKHAWAT, Sampat, S. ,  DHYANCHAND, John

IPC: H02M01/12

CPC classification number: H02M7/487 ,  H02M1/12

Abstract: Prior types of neutral point clamped PWM inverters pulses in a PWM waveform having reference points which are evenly spaced. Such a control technique, however, accomplishes a significant reduction in output harmonics only for relatively low inverter output magnitudes. In order to overcome this problem, a control for a PWM inverter defines a series of reference points (alpha) spaced in time in accordance with an inverse trigonometric function of the number of pulses (9) to be produced in a portion (180 DEG ) of the inverter output wherein each reference point is associated with a pulse to be produced in the PWM waveform and determines rising (R1, R2...) and falling (F1, F2...) edges of each pulse of the AC output relative to the reference point associated with such pulse in dependence upon an output parameter of the inverter. Switch control signals are developed for each switch from the defined rising and falling edges. The control of the present invention accomplishes a significant reduction in the harmonics produced by the inverter at higher inverter output magnitudes.

Abstract translation: 先前的中性点钳位PWM逆变器脉冲在具有均匀间隔的参考点的PWM波形中。 然而，这种控制技术仅在相对较低的逆变器输出幅度下实现输出谐波的显着降低。 为了克服这个问题，PWM逆变器的控制根据在一部分（180°）中产生的脉冲数（9）的反三角函数来定义一系列时间间隔的参考点（α） 其中每个参考点与要在PWM波形中产生的脉冲相关联，并确定AC输出相对每个脉冲的上升沿（R1，R2 ...）和下降（F1，F2 ...） 根据逆变器的输出参数到与这种脉冲相关联的参考点。 从定义的上升沿和下降沿开始为每个开关开关开关控制信号。 本发明的控制在较高的逆变器输出幅度下实现了逆变器产生的谐波的显着降低。

公开(公告)号：WO1990001799A1

公开(公告)日：1990-02-22

申请号：PCT/US1989003167

申请日：1989-07-21

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  CROWE, Lawrence, E. ,  SUTRINA, Thomas, A.

IPC: H01L23/32

CPC classification number: H01L25/112 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A method of manufacturing hermetically sealed circuit assemblies (10) having circuit elements (74, 76, 78 and 80) to be compression bonded, a hermetically sealed circuit assembly having circuit elements to be compression bonded and a stack containing at least one hermetically sealed circuit assembly having circuit elements which are compression bonded is disclosed. Uniform thickness of individual hermetically sealed circuit assemblies measured across columns (22-30) is insured by positioning deformable spacers (124-132) in the columns containing the circuit elements to be compression bonded, and deforming the deformable spacers. Therafter a compressive force is applied to a stack of one or more circuits through the columns which contain the circuit elements to be compression bonded. The individual hermetically sealed circuit assemblies have circular corrugations (32-40) in a flat surface (14) and circular corrugations (114-122) in a lid (20) which are disposed within the columns containing the individually circuit elements to be compression bonded.

Abstract translation: 一种制造具有被压接的电路元件（74,76,78和80）的气密密封电路组件（10）的方法，具有要被压接的电路元件的气密密封电路组件和包含至少一个气密密封电路 公开了具有被压接的电路元件的组件。 通过在包含要压缩的电路元件的列中定位可变形间隔物（124-132）并使可变形间隔物变形来确保跨柱（22-30）测量的各个气密密封电路组件的均匀厚度。 压缩力通过包含待压接的电路元件的列施加到一个或多个电路的堆叠。 单独的密封电路组件在平坦表面（14）中具有圆形波纹（32-40）和盖（20）中的圆形波纹（1​​14-122），其设置在包含要压缩粘合的单独电路元件的列内 。

公开(公告)号：WO1989011588A1

公开(公告)日：1989-11-30

申请号：PCT/US1989001649

申请日：1989-04-17

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  SHEKLETON, Jack, R.

IPC: F02C03/06

CPC classification number: F23R3/04

Abstract: Carbon buildup in a turbine engine including a compressor (16) coupled to a turbine wheel (22) mounted for rotation about an axis and having a nozzle (24) disposed to direct gas at the turbine wheel (22) to drive the same, an annular combustor (26) disposed about the axis and in fluid communication with the nozzle (24) and having a radially inner wall (32), a radially outer wall (34) and a generally radially extending wall (46), a plurality of fuel injectors (48), a compressed air plenum (42), (44), (45) surrounding the combustor (26), a plurality of circumferentially spaced apertures (66) in the radial wall (34) and a cooling strip (68) for directing air passing through the apertures (66) along the radial wall (39) is reduced by locating the apertures (66) closely adjacent the radially outer part of the radial wall (39) and locating the cooling strips (68) to direct air passing through the apertures (66) inwardly as at (72) along the radial wall (39).

公开(公告)号：WO1989006307A1

公开(公告)日：1989-07-13

申请号：PCT/US1988004581

申请日：1988-12-21

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  SHEKLETON, Jack, R.

IPC: F02C03/08

CPC classification number: F23R3/14 ,  F02C3/30 ,  F23R3/28

Abstract: High temperature deterioration of an injector for a gas turbine including a compressor and a turbine wheel is avoided through the use of swirler blades (60) that form a forced vortex adjacent the ends (52, 58) of fuel and oxidant injection tubes to prevent separation of the mixed stream, thereby eliminating backflows or eddies of burning fuel.

Abstract translation: 通过使用与燃料和氧化剂注射管的端部（52,58）相邻形成强制涡流的旋流器叶片（60）来避免用于包括压缩机和涡轮机叶轮的燃气轮机的喷射器的高温劣化，以防止分离 的混合物流，从而消除燃烧燃料的回流或涡流。

公开(公告)号：WO1989006305A1

公开(公告)日：1989-07-13

申请号：PCT/US1988004587

申请日：1988-12-21

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  DISHNER, Bryan, W. ,  MADDALI, Vijay, K. ,  DHYANCHAND, P., John

IPC: F01D15/10

CPC classification number: H02P9/06

Abstract: An electrically compensated constant speed drive (10) which is speed limited so that power flow through the speed compensation link is unidirectional includes a permanent magnet generator (pmG) which is interconnected with a permanent magnet motor (pmm) by a power converter (30). The permanent magnet generator (pmG) and the permanent magnet motor (pmm) are controlled by first and second independent control loops. The power converter (30) includes an AC/DC converter (54) coupled to electrical power windings of the permanent magnet generator (pmG), a filter (58) coupled to the output of the AC/DC converter (54) and an inverter (56) coupled between the filter (58) and electrical power windings of the permanent magnet motor (pmm). The permanent magnet generator (pmG), AC/DC converter (54), filter (58) and the first control loop together develop a voltage on a DC bus. The voltage on the DC bus, which is coupled to the inverter (56) is sufficient to operate the permanent motor (pmm) with the required speed and torque, and thus the second control loop need not implement a voltage control scheme, such as a PWM control.

公开(公告)号：WO1989006060A1

公开(公告)日：1989-06-29

申请号：PCT/US1988004484

申请日：1988-12-16

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  JONES, Gregory, D. ,  OWENS, William, R. ,  THIEL, Clifford, G. ,  DANBY, Clive, M.

IPC: H02H03/20

CPC classification number: H02J9/061

Abstract: A voltage fault detector (10) for producing a trip signal causing switching from a first AC voltage source (12) to a second AC voltage source (14) is disclosed. A plurality of comparators (18, 20, 22) monitor a signal which is proportional to the magnitude of the voltage of a first AC voltage source (12) to determine if sample values fall within predetermined ranges. A counter (30) counts the number of sample falling outside the predetermined range to generate the trip signal when the count reaches a predetermined limit. The counter (30) is augmented for each sample which is outside the predetermined range and decremented for each sample which is within the predetermined range. A plurality of latches (24, 26, 28) are respectively coupled to a different one of the comparators for applying the output level signal from one of the comparators to the counter at predetermined times under the control of clock signal pulse trains generated by a combinational logic circuit (32) which are respectively applied to a different one of the plurality of latches. The voltage fault detector (10) may be used to monitor the condition of one or more phases of a backup voltage source.

公开(公告)号：WO1989005915A1

公开(公告)日：1989-06-29

申请号：PCT/US1988004489

申请日：1988-12-15

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  DISHNER, Bryan, W.

IPC: F02N11/04

CPC classification number: F02N11/04

Abstract: Electrically compensated constant speed drives have been proposed in which permanent magnet machines used in the speed compensation link of the drive have been employed to start a prime mover connected to the drive. However, these machines operate over widely varying speed ranges when in the starting mode, as opposed to the normal generating mode. This in turn leads to an increase in the size and weight of the drive. In order to overcome this problem, an electrically compensated constant speed drive includes controllable gear boxes (27, 35) in the speed compensation link of the drive which permit the overall speed ranges of the permanent magnet machines (PMM1, PMM2) to be controlled, thus leading to a desirable decrease in size and weight of the machines.

Abstract translation: 已经提出了电动补偿恒速驱动器，其中在驱动器的速度补偿链路中使用的永久磁铁机器已经被用于启动连接到驱动器的原动机。 然而，与正常生成模式相反，这些机器在起动模式下工作在广泛变化的速度范围内。 这又导致驱动器的尺寸和重量的增加。 为了克服这个问题，电动补偿的恒速驱动器包括驱动器的速度补偿连杆中的可控齿轮箱（27,35），其允许永磁体机器（PMM1，PMM2）的总体速度范围被控制， 从而导致机器的尺寸和重量的理想的减小。

公开(公告)号：WO1989005904A1

公开(公告)日：1989-06-29

申请号：PCT/US1988004580

申请日：1988-12-21

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  CYGNOR, John, E.

IPC: F02C07/26

CPC classification number: F02C7/26 ,  F02C7/236 ,  Y02T50/671

Abstract: The use of a single main centrifugal fuel pump for supplying fuel to an aircraft gas turbine engine has advantages over other known systems however a problem has existed in that the centrifugal pump, when driven in a fixed ratio to the engine speed, cannot deliver fuel at adequate pressure under engine starting conditions. The disclosed fuel supply system using a main centrifugal pump (10) overcomes this shortcoming by having a turbine-driven start pump (30) added to the fuel supply system with both the turbine (32) and the start pump receiving fuel pumped by the main centrifugal pump and the turbine utilizing the high flow, low pressure fuel to drive the start pump which increases the pressure of the fuel to a value adequate for engine starting. The start pump delivers fuel until such time as the centrifugal fuel pump has reached a speed to provide the fuel to the engine at the required pressure, at which time the turbine is no longer driven and the output of the start pump goes to zero.

公开(公告)号：WO1989004542A1

公开(公告)日：1989-05-18

申请号：PCT/US1988003962

申请日：1988-11-07

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  OILSGHLAGER, James, D., Jr.

IPC: H01H35/10

CPC classification number: H02P9/14 ,  H01H35/10 ,  H02P2101/30

Abstract: The present invention provides a centrifugally activated switch (40) for mounting a rotor (29) and which provides an alternate current path for the induced current. The switch comprises a housing (42), a shaft (44) rotatable with the housing, an axially stationary contactor (64) rotatably carried by the housing, an axially movable contactor (62) slidably carried by the shaft housing, the axially movable contactor axially movable between first and second positions along the shaft, one of the positions being in non-sliding contact with the stationary contactor and the other of the positions being in non-contact with the stationary contactor, first arrangement (60, 61, 68) for axially biasing the movable contactor towards one of the positions and second arrangement (44, 46, 48, 50, 52, 54, 55, 70, 72) for axially biasing the movable contactor towards the other of the positions in response to rotation of the housing.

Abstract translation: 本发明提供了一种用于安装转子（29）并且为感应电流提供交流电流路径的离心致动开关（40）。 所述开关包括壳体（42），与所述壳体一起旋转的轴（44），由所述壳体可旋转地承载的轴向固定接触器（64），由所述轴壳可滑动地承载的轴向可动接触器（62），所述可轴向移动的接触器 第一布置（60,61,68）可以沿着轴在第一和第二位置之间轴向移动，其中一个位置与固定接触器非滑动接触，另一个位置与固定接触器不接触， 用于将所述活动接触器朝向所述位置之一轴向偏置，并且所述第二布置（44,46,48,50,52,54,55,70,72,72）用于响应于所述可动接触器的旋转 住房。