公开(公告)号：WO1985002075A1

公开(公告)日：1985-05-09

申请号：PCT/US1984001704

申请日：1984-10-22

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  SHEPLER, John, E.

IPC: H03K17/56

CPC classification number: H04L25/22

Abstract: A data converter comprises a pair of NAND gates (21, 41) and a pair of bipolar differential operational amplifiers (22, 42). Monopolar binary digital data (See Fig. 2b) in uninverted and inverted forms and a clock signal (Fig. 2a) are connected with the NAND gate inputs. The NAND gate outputs are complementary monopolar data signals at the clock frequency and are cross-coupled to the direct and inverting inputs of the operational amplifiers. The outputs of the operational amplifiers are complementary bipolar data signals. Low pass filters (27, 28, 29) establish the rise and fall times of the bipolar data signals and the high frequency response limit. Voltage buffers (23, 43) isolate the converter from the data transmission line and include current limiting resistors (34, 35) which prevent damage in the event of a short circuit of the line.

公开(公告)号：WO1985002070A1

公开(公告)日：1985-05-09

申请号：PCT/US1984001772

申请日：1984-11-01

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  GLENNON, Timothy, F.

IPC: H02M01/12

CPC classification number: H02M7/53871

Abstract: An inverter control system for selecting an angle set defining an inverter output waveform in response to various operating conditions of the inverter (10). The inverter control system selects an angle set in response to signals representing the power factor () of the load and the normalized DC bus voltage (PU VDC) to minimize the harmonic content of the inverter output waveform and to compensate for voltage drops occuring between the DC power supply and the load. The inverter control system is also responsive to the inverter filter output current (IO) to detect fault conditions and in response thereto, to select at least one angle set defining a waveform to reduce the voltage at the load to zero while allowing the filter output current to increase to a given percentage of the rated current.

公开(公告)号：WO1985001490A1

公开(公告)日：1985-04-11

申请号：PCT/US1984001468

申请日：1984-09-17

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  ALDRICH, Allyn, M.

IPC: B64C27/59

CPC classification number: B64C27/58 ,  B64C11/32

Abstract: A helicopter blade position and control mechanism including a hollow rotor shaft (14) for mounting a plurality of rotor blades (22) with provision for pitch adjustment. A control shaft (28) is disposed within the rotor shaft and is rotatable relative thereto and is associated with actuators (20) for the blades such that the pitch of the blades is changed when the control shaft rotates relative to the rotor shaft. A planetary gear assembly (44) interconnects to control shaft and a source of power fixed to the helicopter fuselage (10) and is such that when an input to the planetary gear assembly is quiescent, the control shaft will rotate in the same direction and at the same rate as the rotor shaft to maintain a desired blade pitch. Conversely, when an input is placed on the planetary gear system, relative rotation between the control shaft and the rotor shaft will occur to provide the desired adjustment in blade pitch. The system allows accurate blade position feedback signals to be taken from a feedback device stationarily mounted on the fuselage.

公开(公告)号：WO1985001160A1

公开(公告)日：1985-03-14

申请号：PCT/US1984001199

申请日：1984-07-30

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  OLSON, Raymond, N.

IPC: H02K21/12

CPC classification number: H02K1/278

Abstract: A rotor (15) for a permanent magnet generator has a carrier (24) of nonmagnetic material. One or more elements (18, 19, 20, 21) of magnetic material are carried by the carrier and provide a magnetic path in parallel with the primary magnetic path for operating flux which is coupled with the stator (10) windings. The number of magnetic elements used determines the amount of flux diverted from the stator (10) and thus adjusts the voltage generated in the stator winding.

Abstract translation: 用于永磁发电机的转子（15）具有非磁性材料的载体（24）。 磁性材料的一个或多个元件（18,19,20,21）由载体承载，并提供与主磁路平行的磁路，用于操作与定子（10）绕组耦合的磁通。 使用的磁性元件的数量决定了从定子（10）转向的磁通量，从而调节在定子绕组中产生的电压。

公开(公告)号：WO1985000935A1

公开(公告)日：1985-02-28

申请号：PCT/US1984000827

申请日：1984-05-29

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  WEBER, Kent

IPC: H02K01/32

CPC classification number: H02K9/19

Abstract: A rotary electric machine including a stator (10), a rotor (22) separated from the stator by an air gap, journalled for rotation relative to the stator about an axis of rotation, and electrical windings (14) carried by at least one of the rotor and the stator. A cooling liquid flow path (26, 28) is provided for cooling the windings, and a gas vent passage (56) in the rotor introduces gas into the air gap to prevent the entry of liquid coolant into it and/or to drive accumulated liquid coolant out of the air gap.

公开(公告)号：WO1985000533A1

公开(公告)日：1985-02-14

申请号：PCT/US1984000681

申请日：1984-05-03

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  NIGGEMANN, Richard, E.

IPC: B01D19/00

CPC classification number: F42B19/20 ,  B01D19/0052

Abstract: An apparatus and method for removing air and other gases entrained in water or other liquid and, more particularly from water delivered from a steam condenser (17) and used in a steam-generating system for powering a prime mover (12) of a torpedo. The apparatus includes a rotatable drum (32) for centrifuging a volume of water and air to separate the water from the air, a pitot probe (60) for drawing water from the container (32) under pressure, a water-driven air jet pump (70) within the rotatable drum and communicating with the separated air to pump the air into a collection chamber (72) and build up the pressure thereof, a nozzle (75) for directing a portion of the water drawn through the pitot probe to the air jet pump for operation thereof and a relief valve (85) for controlling the discharge of air under pressure from the collection chamber (72) to an exhaust area which may be a pressurized area within the torpedo.

公开(公告)号：WO1985000475A1

公开(公告)日：1985-01-31

申请号：PCT/US1984000775

申请日：1984-05-21

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  OLSON, Raymond, N.

IPC: H02K09/00

CPC classification number: H02K19/38 ,  H02K5/128 ,  H02K9/19

Abstract: The cooling efficiency in a rotary electric machine is improved by providing direct contact between the coolant and the sources of heat while preventing high drag loss from coolant entering the air gap between the moving and stationary parts of the rotary machine. The rotary electric machine such as a brushless generator includes a housing (10), a stator (24) within the housing (10) and a rotor (22) journalled within the housing (10). A stationary element (60) is affixed to the housing (10) and extends axially into a cavity (58) in the rotor (22) and a barrier (48) is provided in the air gap (34) between the stator (24) and the rotor (22). The barrier (48) serves to isolate the flow of coolant to the stator (24) from the air gap (34) and the stationary element (60) serves as an arrangement for mounting, within the rotor (22), components of a permanent magnet generator (90) and an exciter (92) which is wholly contained within the rotor (22). The stationary element (60) is also provided with a conduit (64) for conducting coolant to the various components of the rotor (22).

Abstract translation: 通过提供冷却剂和热源之间的直接接触，同时防止冷却剂进入旋转机器的移动和静止部分之间的空气间隙的高阻力损失，来提高旋转电机中的冷却效率。 诸如无刷发电机的旋转电机包括壳体（10），壳体（10）内的定子（24）和安装在壳体（10）内的转子（22）。 固定元件（60）固定到壳体（10）并且轴向延伸到转子（22）中的空腔（58）中，并且在定子（24）之间的气隙（34）中设置有阻挡件（48） 和转子（22）。 阻挡件48用于将冷却剂与气隙（34）的流动隔离开，并且固定元件（60）用作在转子（22）内安装永久件的部件的装置 磁体发生器（90）和完全包含在转子（22）内的励磁机（92）。 固定元件（60）还设置有用于将冷却剂引导到转子（22）的各种部件的导管（64）。

公开(公告)号：WO1984003400A1

公开(公告)日：1984-08-30

申请号：PCT/US1984000197

申请日：1984-02-10

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  VAIDYA, Jayant, Gajanan

IPC: H02K16/00

CPC classification number: H02K19/34 ,  H02K3/28 ,  H02K16/04 ,  H02K17/02 ,  H02K21/12 ,  H02K21/48

Abstract: Electromotive machine of the type having a stator (14) and a rotor (15). The stator is provided with multiple sets of windings (quadrants 1:4, Fig. 1), each independently electrically coupled to an electrical means to establish separate power channels between the windings and the electrical means that allow for the simultaneous independent transmission of power through the channels when the machine is in operation. In case of failure in one of the windings (quadrants 1:4), operation of the machine can continue through use of the remaining windings. The machine may take the form of either a motor or generator.

公开(公告)号：WO1984000588A1

公开(公告)日：1984-02-16

申请号：PCT/US1983001076

申请日：1983-07-11

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  LANG, David, J.

IPC: F16D55/16

CPC classification number: F16D59/00

Abstract: Flight control actuation systems are typically provided with inertial motors having high speed rotating parts that are difficult to stop. The use of an unidirectional high gain brake arrangement that includes in combination a shaft (11) mounted for rotation within a housing (16) has been found to aid in stopping the actuation system when it has reached its maximum travel. The shaft is rotatable in either direction. A brake (25) is selectively releasably coupled to the housing and to the shaft. The brake has a first member (45). An intermittent motion device (60) is respectively coupled through the first member to the housing and through a one-way clutch (25) to the shaft. The brake also has a second member (42) that is mechanically coupled to the first brake member and to the housing. The intermittent motion device causes the brake to be activated by movement imparted to the first brake member after a preset number of revolutions of the shaft in one direction. The brake is released by rotation of the shaft in an opposite direction whereby torque transmitted through the one-way clutch to the first brake member is removed.

公开(公告)号：WO1998006168A1

公开(公告)日：1998-02-12

申请号：PCT/US1997013739

申请日：1997-08-04

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  ROZMAN, Gregory, I. ,  MARKUNAS, Albert, L. ,  HANSON, Michael, J. ,  WEBER, Leland, E.

IPC: H02P09/02

CPC classification number: H02P9/02 ,  H02P9/08 ,  H02P9/302 ,  H02P2101/30

Abstract: A motor generator system (120) in accordance with the invention includes a prime mover (21) for driving an output shaft (18), a main motor generator (105), having a rotor driven by the output shaft, for producing electrical power on at least one output winding (36a-36c) in response to the prime mover rotating the output shaft and for driving the output shaft in response to operation as a motor; an exciter (102) for applying excitation to a field winding (34) of the main motor generator during operation for producing electrical power on the at least one output winding and for applying current to the field winding of the main motor and generator to produce a magnetic field in the field winding during operation of the main motor generator as a motor; circuitry (122), responsive to current in a field winding (204) of the exciter, for producing an output signal representing a position of the rotor of the main motor generator driven by the output shaft; and a main inverter (114), responsive to the output signal, for commutating application of electrical current to the at least one output winding to control operation of the main motor generator during operation as a motor.

Abstract translation: 根据本发明的电动发电机系统（120）包括用于驱动输出轴（18）的原动机（21），具有由输出轴驱动的转子的主电动发电机（105），用于产生电力 至少一个输出绕组（36a-36c）响应于原动机旋转输出轴并响应于作为电动机的操作来驱动输出轴; 用于在用于在所述至少一个输出绕组上产生电力的操作期间对所述主电动发电机的励磁绕组（34）施加励磁并且将电流施加到所述主电动机和发电机的励磁绕组的励磁器（102），以产生 在作为电动机的主电动发电机运行期间的励磁绕组中的磁场; 电路（122）响应于励磁机的励磁绕组（204）中的电流，用于产生表示由输出轴驱动的主电动发电机的转子位置的输出信号; 以及响应于所述输出信号的主逆变器（114），用于将电流整流到所述至少一个输出绕组，以在作为电动机的操作期间控制所述主电动发电机的操作。