公开(公告)号：WO1986003814A1

公开(公告)日：1986-07-03

申请号：PCT/US1985002552

申请日：1985-12-19

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  BAITS, Stephen, S. ,  REYNOLDS, Richard, W.

IPC: F16H47/04

CPC classification number: F16H47/04 ,  F16H61/46 ,  F16H61/465 ,  Y10T74/19037 ,  Y10T307/469

Abstract: The differential transmission mechanism has an output differential (10). A first hydraulic displacement unit (18) having a normally fixed, approximately maximum displacement is connected to the output differential. A second hydraulic displacement unit (16) which is of variable displacement is connected to an input shaft (12). Additional components of the output differential are connected to the input shaft (12) and to an output shaft (14). An output shaft speed sensing device (32) controls the displacement of the variable displacement hydraulic displacement unit (16) to achieve a constant output speed. A sensor and control (74) responds to a reduced speed of the input shaft (12) to reduce the displacement of the fixed displacement unit (18) to effectively make the latter displacement unit a smaller, faster unit and extend the constant output speed range at the low end of the input speed range.

Abstract translation: 差动传动机构具有输出差速器（10）。 具有正常固定的大致最大位移的第一液压位移单元（18）连接到输出差速器。 具有可变排量的第二液压位移单元（16）连接到输入轴（12）。 输出差速器的附加部件连接到输入轴（12）和输出轴（14）。 输出轴速度检测装置（32）控制可变排量液压位移单元（16）的位移以实现恒定的输出速度。 传感器和控制器（74）响应于输入轴（12）的降低的速度，以减小固定位移单元（18）的位移，以有效地使后者的位移单元变得更小，更快的单位并且延伸恒定的输出速度范围 在输入速度范围的低端。

公开(公告)号：WO1986003900A1

公开(公告)日：1986-07-03

申请号：PCT/US1985002499

申请日：1985-12-16

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  GLENNON, Timothy, F. ,  REYNOLDS, Richard, W.

IPC: H02K09/00

CPC classification number: H02K3/505 ,  H02K3/24 ,  H02K9/197

Abstract: In a dynamoelectric machine a disadvantageous feature is that coolant tends to find its way into an airgap between a rotor and a stator to cause friction and windage losses. This problem is solved by an end turn construction to improve cooling in the dynamoelectric machine and to axially reduce the size thereof. The machine includes a body (12) of magnetizable material having opposed ends (18), an opening (14) extending between the ends (18), and the plurality of slots (50) about the opening (14). A rotor (16) is disposed within the opening (14) and journalled for rotation therein and electric conductors (52) are located in the slots (50) and extend to ends (54, 56) just past the ends (18) of the body (12). End turns (58, 60, 62 and 68) each interconnect a predetermined pair of conductors (52) and extend substantially circumferentially and radially of the rotor axis with no appreciable extension axially of the axis.

Abstract translation: 在电动机中，不利的特征是冷却剂倾向于进入转子和定子之间的空气隙，导致摩擦和阻风损失。 这个问题是通过端部旋转结构来解决的，以改善电动机中的冷却并且轴向地减小其尺寸。 该机器包括具有相对端部（18）的可磁化材料体（12），在端部（18）之间延伸的开口（14）和围绕开口（14）的多个狭槽（50）。 转子（16）设置在开口（14）内并且轴颈以便在其中旋转，并且电导体（52）位于狭槽（50）中并且延伸到刚好超过所述端部（18）的端部（54,56） 身体（12）。 端匝（58,60,62和68）每个互连一个预定的一对导体（52），并且基本上在转子轴线的周向和径向上延伸，而轴线不具有明显的延伸。

公开(公告)号：WO1989005935A1

公开(公告)日：1989-06-29

申请号：PCT/US1988004584

申请日：1988-12-21

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  ERIKSON, Evans, W. ,  REYNOLDS, Richard, W. ,  RYAN, Daniel, M.

IPC: F16H47/04

CPC classification number: F02N11/04 ,  F16H47/04 ,  F16H2037/0866 ,  F16H2047/045 ,  Y10T74/19033

Abstract: A combined engine starting and power generating system includes an engine (110) connected to a dynamoelectric machine (142) useable as a motor or as a generator via a differential (114). The system utilizes variable and fixed displacement hydraulic units (146, 156) sized for power generating operation. An auxiliary fixed displacement hydraulic unit (162) is provided for use only during an engine starting mode.

Abstract translation: 组合的发动机起动和发电系统包括连接到可用作电动机的电动机（142）的发动机（110），或者通过差速器（114）作为发电机。 该系统采用尺寸适合发电操作的可变和固定位移液压单元（146,156）。 辅助固定位移液压单元162被设置为仅在发动机起动模式期间使用。

公开(公告)号：WO1988006378A1

公开(公告)日：1988-08-25

申请号：PCT/US1988000570

申请日：1988-02-18

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  COOK, Alexander ,  REYNOLDS, Richard, W.

IPC: H02P09/00

CPC classification number: H02P9/48 ,  H02P9/08 ,  H02P2101/30

Abstract: Prior power supply systems which develop constant-frequency AC power and/or DC power from variable-speed motive power require complex electrical power converters, special electromagnetic machines or bulky constant speed drives. These components may render the system unsuitable for use in some applications. In order to overcome this problem, a power supply system for developing electrical power from variable-speed motive power produced by a prime mover includes a differential speed summer (18) having a first shaft (16) coupled to the prime mover (12) and further having second and third shafts (20, 24) coupled to first and second generators (22, 26), respectively, a power conditioner (30) coupled to the second generator (26) for conditioning the power developed thereby and means (34) for regulating the conditioned power developed by the second generator (26) so that the first generator (22) develops constant-frequency AC power.

Abstract translation: 从变频动力开发恒频交流电源和/或直流电源的现有电源系统需要复杂的电力转换器，专用电磁机器或体积庞大的恒速驱动器。 这些组件可能会使系统不适合在某些应用中使用。 为了克服这个问题，用于从由原动机产生的可变速动力来开发电力的供电系统包括具有联接到原动机（12）的第一轴（16）的差速减速器（18）和 还具有分别耦合到第一和第二发电机（22,26）的第二和第三轴（20,24），耦合到第二发电机（26）的功率调节器（30），用于调节由此产生的功率和装置（34） 用于调节由第二发生器（26）产生的调节功率，使得第一发电机（22）产生恒定的交流电力。

公开(公告)号：WO1989001569A1

公开(公告)日：1989-02-23

申请号：PCT/US1988002649

申请日：1988-08-03

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  REYNOLDS, Richard, W. ,  GLENNON, Timothy, F. ,  FLYGARE, Wayne, A. ,  BAITS, Paul ,  WAMBU, Ogbonna, C.

IPC: F02N11/08

CPC classification number: F02N11/04

Abstract: Prior starting/generating systems which operate a generator as a motor to start a prime mover have been inefficient since motive power was delivered to the prime mover through hydrostatic trim and differential components of a constant speed drive interposed between the prime mover and the generator. In order to overcome this problem, means (78) are provided between the prime mover (16) and the generator (12) for bypassing these components of the constant speed drive (14) when operating in a starting mode so that motive power is transferred directly to the prime mover (16). This, coupled with the fact that the generator (12) is operated as a motor in accordance with generator speed and/or generator power factor, increases the efficiency of the system when in the starting mode.

公开(公告)号：WO1985002887A1

公开(公告)日：1985-07-04

申请号：PCT/US1984002057

申请日：1984-12-14

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  REYNOLDS, Richard, W.

IPC: F02N17/00

CPC classification number: F02N15/022 ,  F02B67/04 ,  F02N11/00 ,  F02N15/04 ,  Y10T74/1926

Abstract: An aircraft secondary power system having a selectively operable power source (40, 70, 100) for drive of accessories and for starting of a jet engine. The system includes a clutch (50, 79, 109) which is engaged when the power source is to start the engine. At a predetermined engine speed, the engine takes over the drive of the accessories through the clutch and, at a selected higher speed of the engine, the clutch is disengaged to cause the drive of the accessories from the engine at a lower drive ratio whereby the accessories are driven at a lower speed relative to the speed of the engine.

公开(公告)号：WO1990006015A1

公开(公告)日：1990-05-31

申请号：PCT/US1989004444

申请日：1989-10-10

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  REYNOLDS, Richard, W. ,  ROZMAN, Gregory, I.

IPC: H02P01/00

CPC classification number: F02N11/04 ,  H02P9/08 ,  H02P23/20 ,  H02P2101/30

Abstract: The problem of reducing the effect of inaccuracies in rotor position detection for an engine starting system is solved in an engine start control apparatus (10) operating a generator (12) as a synchronous motor which employs acceleration control. The motor (12) receives power from a main inverter and an excitation inverter (48). The inverters (46, 48) are controlled by a control unit (22) which provides for acceleration control and closed loop reactive power control. The control unit (22) includes a pulse width modulation generator (100) which is responsive to a voltage command and a commutation command to develop switching signals for controlling the switches (S1-S6) in the main inverter (46). The voltage command is used to vary the duty cycle of the PWM signals. The commutation angle command is used to control the timing of the PWM signals. The commutation angle command is determined in accordance with an acceleration reference (112) and rotor position (70) feedback in a closed loop manner to maintain generally constant acceleration.

Abstract translation: 在作为采用加速控制的同步电动机的发电机（12）的发动机起动控制装置（10）中，解决了降低发动机起动系统的转子位置检测中的不准确度的影响的问题。 电动机（12）从主逆变器和励磁逆变器（48）接收电力。 逆变器（46,48）由控制单元（22）控制，该控制单元提供加速控制和闭环无功功率控制。 控制单元（22）包括脉冲宽度调制发生器（100），其响应于电压指令和换向指令，以产生用于控制主逆变器（46）中的开关（S1-S6）的开关信号。 电压指令用于改变PWM信号的占空比。 换向角指令用于控制PWM信号的定时。 根据加速度参考（112）和转子位置（70）以闭环方式反馈来确定换向角度命令以保持大致恒定的加速度。

公开(公告)号：WO1987004022A1

公开(公告)日：1987-07-02

申请号：PCT/US1986002653

申请日：1986-12-10

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  FLYGARE, Wayne, A. ,  OLSON, Raymond, N. ,  REYNOLDS, Richard, W. ,  ALEEM, Mohd, Abdul

IPC: H02K01/30

CPC classification number: H02K21/029 ,  H02K21/14

Abstract: The effects of operational loading on a permanent magnet generator of the type having first and second permanent magnet assemblies (28, 30) mounted on a shaft (26), and movable relative to each other is eliminated by rotatably mounting each of the assemblies (28, 30) for rotation relative to the shaft (26), as well as to each other, and connecting them to the shaft by equal, but oppositely pitched helical spline connections (50, 52, 58, 60). Axial movement of the shaft (26) will then cause equal, but opposite, relative movement of the permanent magnet assemblies (28, 30) so that the forces resisting movement of one such assembly act to encourage movement of the other, thereby balancing out said forces.

公开(公告)号：EP0205608B1

公开(公告)日：1989-08-09

申请号：EP86900696.5

申请日：1985-12-19

Applicant: SUNDSTRAND CORPORATION

Inventor： BAITS, Stephen, S. ,  REYNOLDS, Richard, W.

IPC: F16H47/04

CPC classification number: F16H47/04 ,  F16H61/46 ,  F16H61/465 ,  Y10T74/19037 ,  Y10T307/469

Abstract: The differential transmission mechanism has an output differential (10). A first hydraulic displacement unit (18) having a normally fixed, approximately maximum displacement is connected to the output differential. A second hydraulic displacement unit (16) which is of variable displacement is connected to an input shaft (12). Additional components of the output differential are connected to the input shaft (12) and to an output shaft (14). An output shaft speed sensing device (32) controls the displacement of the variable displacement hydraulic displacement unit (16) to achieve a constant output speed. A sensor and control (74) responds to a reduced speed of the input shaft (12) to reduce the displacement of the fixed displacement unit (18) to effectively make the latter displacement unit a smaller, faster unit and extend the constant output speed range at the low end of the input speed range.

公开(公告)号：EP0167587B1

公开(公告)日：1989-03-15

申请号：EP85900530.8

申请日：1984-12-14

Applicant: SUNDSTRAND CORPORATION

Inventor： REYNOLDS, Richard, W.

IPC: F02C7/32 ,  F02N17/00 ,  F16H5/42

CPC classification number: F02N15/022 ,  F02B67/04 ,  F02N11/00 ,  F02N15/04 ,  Y10T74/1926

Abstract: An aircraft secondary power system having a selectively operable power source (40, 70, 100) for drive of accessories and for starting of a jet engine. The system includes a clutch (50, 79, 109) which is engaged when the power source is to start the engine. At a predetermined engine speed, the engine takes over the drive of the accessories through the clutch and, at a selected higher speed of the engine, the clutch is disengaged to cause the drive of the accessories from the engine at a lower drive ratio whereby the accessories are driven at a lower speed relative to the speed of the engine.