公开(公告)号：WO1988004883A2

公开(公告)日：1988-07-14

申请号：PCT/US1987003443

申请日：1987-12-23

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  FLUEGEL, Theodore, D.

IPC: H02K1/27 ,  H02K19/38 ,  H02K21/30

CPC classification number: H02K21/30 ,  H02K19/38

Abstract: A generator system having self-build-up characteristics with an integral permanent magnet generator exciter (44). A rotor shaft (16') is journalled in a housing (12). A main stator (28') is secured within the housing, and a rotating field (26') is magnetically coupled to the main stator and secured to the rotor shaft for rotation therewith. An exciter field (22') is secured within the housing, and an exciter armature (24') is magnetically coupled to the exciter field and secured to the rotor shaft for rotation therewith. A plurality of permanent magnets (50) are integrally secured to a radially inner periphery of the exciter field immediately adjacent a radially outer periphery of the exciter armature.

Abstract translation: 发电机系统具有自吸特性并配有永磁发电机（44）。 转子轴（16'）轴颈安装在壳体（12）中。 主定子（18'）固定在壳体中，并且旋转场（26'）磁耦合到主定子并且固定到转子轴以随其旋转。 激励器场（22'）固定在壳体中，并且激励器电枢（24'）磁激励地耦合到激励器场并且附接到转子轴以与转子轴一起旋转。 多个永久磁铁（50）与紧邻激励器衔铁的外部径向外围的激励器区域的内部径向外围一体。

公开(公告)号：WO1988004722A1

公开(公告)日：1988-06-30

申请号：PCT/US1987003204

申请日：1987-12-04

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  RODGERS, Colin

IPC: F02C07/18

CPC classification number: F02C3/05 ,  F01D5/046

Abstract: Increased turbine inlet temperatures and/or extended life of turbine rotors in gas turbine engines is achieved by locating a plurality of passages (50) that extend axially in the disc (46) and turbine blades (32) of a so-called monorotor. The passages (50) have inlets (54) between compressor blades (18) on the rotor (20) and exit openings (52) in the free edges (38) of the turbine blades (32). Thus, air compressed by the compressor blades (18) is flowed through the passages (50) to cool the rotor (20).

公开(公告)号：WO1988002569A1

公开(公告)日：1988-04-07

申请号：PCT/US1987002500

申请日：1987-09-28

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  KRINICKAS, Alexander, Jr. ,  BANSAL, Madan, Lal

IPC: H02K15/02

CPC classification number: H02K1/22 ,  H02K1/06

Abstract: In order to improve the efficiency of electric machines, by reducing losses caused by eddy currents induced by high frequency fluxes, the outer surface (12) of the rotor (10), including the rotor pole face, has a plurality of circumferential grooves (14). The grooves are provided in axially spaced relation along the rotor. Preferably, the method of reducing losses includes the step of forming the grooves by laser cutting (16), which permits the width and spacing of the grooves to be minimized so as to maximize loss reduction by increasing resistance to eddy currents.

Abstract translation: 为了提高电机的效率，通过减少由高频通量引起的涡流引起的损耗，包括转子极面的转子（10）的外表面（12）具有多个周向槽（14） ）。 槽沿着转子以轴向间隔的关系设置。 优选地，减少损耗的方法包括通过激光切割（16）形成凹槽的步骤，这允许凹槽的宽度和间隔最小化，以便通过增加对涡流的阻力来最大程度地减小损耗。

公开(公告)号：WO1987005667A1

公开(公告)日：1987-09-24

申请号：PCT/US1987000610

申请日：1987-03-18

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  MILLER, E., Kent

IPC: F04D29/44

CPC classification number: F04D29/608

Abstract: A cartridge or plug-in pump for use in a fluid holding receptacle such as an aircraft fuel tank (33). A pump housing (32) on the fluid holding receptacle has an inlet opening (40) to allow passage of fluid from the receptacle into the pump housing. A plug-in pump assembly (14, 16, 20, 28) is axially and rotatably positionable in the pump housing. A pump inlet closure (50) is mounted on the pump housing for movement between inlet open and closed positions. Seals (35) are provided between the pump housing and the pump assembly. A first actuator (54, 66, 68) moves the closure to its inlet closed position in response to rotational movement of the pump assembly relative to the pump housing. A second actuator (76, 78) moves the pump assembly axially relative to the pump housing to break the seals also in response to rotational movement of the pump assembly relative to the pump housing. The first and second actuators are synchronized whereby the closure is in its inlet closed position at the time the seals are broken.

公开(公告)号：WO1987003658A1

公开(公告)日：1987-06-18

申请号：PCT/US1986001779

申请日：1986-08-28

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  GILLINGHAM, Gary, D. ,  METCALF, Jeffrey, D.

IPC: F16D11/04

CPC classification number: F16D59/00 ,  F16H25/2015 ,  G05G5/04

Abstract: An overtravel stop (10) for a rotating shaft (12) has a pair of gears (20, 28, 30) associated with the shaft (12) to rotate therewith. Each gear (20, 28, 30) engages an associated limiting gear (68, 66) and the two engaged gear pairs have different gear ratios. One of the limiting gears (68) is threaded over a shaft (72, 76) which is secured for rotation with the other limiting gear (66), such that the different gear ratios causes the one limiting gear (68) to translate over the shaft (12). At selected travel limits, the one limiting gear (68) is caused to lock relative to the other, thereby causing one of the gears (28, 30) associated with the shaft (12) to shift therearound. A cam structure (40) is provided which axially shifts a stop member (34) associated with the shaft (12) into engagement with a fixed stop (36) when the one gear shifts (28, 30) about the shaft (12). Two different cam structures are shown including a pin and slot connection (42, 44) between the stop member (34) and the shaft (12), and an ear (122) and cam recess (120) connection between the stop member (32, 118) and one of the shaft gears (20).

公开(公告)号：WO1987002199A1

公开(公告)日：1987-04-09

申请号：PCT/US1986002001

申请日：1986-09-23

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  GLENNON, Timothy, F.

IPC: H02K16/00

CPC classification number: H02P9/04 ,  H02K16/00 ,  H02K21/48 ,  H02P2101/30 ,  Y10T307/289 ,  Y10T307/718

Abstract: Prior types of generating systems for producing AC and DC output power have utilized integrated drive generators for producing the AC power and means for rectifying the AC power developed by the drive generator to produce the DC power. However, such types of systems encounter various disadvantages, including less than desirable reliability of the DC power, distortion in the AC power caused by rectification thereof to produce the DC power and reduced efficiency. In order to overcome these problems, a hybrid generating system according to the present invention comprises an AC power generating section (54, 56, 60, 62) driven by a prime mover (50) for generating AC output power and a DC power generating section (66, 68, 70, 72) independent of the AC power generating section, also driven by the prime mover (50) for generating the DC output power wherein each of the AC and DC power generating sections includes a permanent magnet generator (80). The AC and DC power generating sections may be provided in a common housing (100) to provide a compact hybrid generating system in which reliability and efficiency are increased and distortion in the AC output power caused by generation of the DC output power is eliminated

公开(公告)号：WO1987001760A1

公开(公告)日：1987-03-26

申请号：PCT/US1986001604

申请日：1986-08-04

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  WATTS, Thomas, A.

IPC: F01B13/04

CPC classification number: F01B3/0047 ,  F01B3/0076 ,  Y10T29/49236

Abstract: A hydraulic displacement unit of the axial piston fixed displacement type having a rotatable cylinder block (18) with axially reciprocal pistons (35), each of which has a slipper (38) associated with a swash surface, as defined by a thrust plate (45), a structure for obtaining fixed maximum clearance between the slippers (38) and the thrust plate (45). This fixed maximum clearance is achieved by the use of the controlled positioning of a slipper retainer bearing (49) relative to the surface of the thrust plate (45) by use of a tubular member (85) positioned within the cavity (11) of the unit housing (10) which is securely located and positioned by assembly of an end cap (12) to the housing to be located between the thrust plate (45) and the end cap (12). The tubular member (85) has a series of windows (102-105) at the thrust plate end thereof for receiving outwardly-extending peripheral tabs (120-123) on the slipper retainer bearing from the thrust plate (45) and with the thickness of the slipper retainer bearing (49), a slipper retainer (47), and slipper feet (40) determining the fixed maximum clearance. The tubular member (85) is constructed with permanently deformable fingers (95) to take up manufacturing tolerances between components upon assembly of the unit and has provision for optional mounting of different types of spring structures (152-155, 180-183, 201, 202, 221-224) acting on the slippers for urging the slippers (38) toward the thrust plate (45) and resisting tipping thereof.

公开(公告)号：WO1986007501A1

公开(公告)日：1986-12-18

申请号：PCT/US1986001265

申请日：1986-06-10

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  NGUYEN, Vietson, M. ,  DHYANCHAND, John, P. ,  THOLLOT, Pierre, S.

IPC: H02H07/122

CPC classification number: H02M7/53862 ,  H02H7/1227 ,  H02M7/49 ,  H02M7/53846 ,  H03K17/0424

Abstract: A proportional base drive circuit overcomes the problems of relatively long turn-off times of power switches in an inverter and the absence of protection circuitry for the switches. The circuit includes a current transformer (20), having a primary winding (20a) coupled to a main current electrode of a pair of power switches (T1, T2) and first (20b) and second (20c) secondary windings each of which develops regenerative currents proportional to load current. First (S1) and second (S2) auxiliary switches are coupled between the secondary windings and the control electrodes of the power switches. A base drive logic circuit (22) is included for operating the auxiliary switches (S1, S2) in synchronism with the power switches (T1, T2) so that the power switches operate in rapid fashion. An overcurrent protection circuit (60) is for disabling the power switches when an overcurrent condition is sensed.

公开(公告)号：WO1986005040A1

公开(公告)日：1986-08-28

申请号：PCT/US1986000392

申请日：1986-02-24

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  UPADHYAY, Anand

IPC: H02H07/122

CPC classification number: H02M1/38

Abstract: Prior circuits for protecting inverter switches from the possibility of overlapping operation which may cause shoot-through have required complex and expensive delay circuits to provide a fixed delay between turn-off of one switch and turn-on of the complementary switch. In order to overcome the problem of complexity and expense, a protection circuit according to the present invention includes a drive signal source (20) for developing complementary first and second drive signals and first (22) and second (23) drive logic circuits coupled to the drive signal source (20) developing a switch control signal for controlling first (Q1) and second (Q2) switching devices, respectively, in response to the drive signals so that overlapping operation is prevented.

公开(公告)号：WO1986005030A1

公开(公告)日：1986-08-28

申请号：PCT/US1986000339

申请日：1986-02-18

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  SUTRINA, Thomas ,  READMAN, John

IPC: H01L23/16

CPC classification number: H01L25/071 ,  H01L2924/0002 ,  H01L2924/00

Abstract: The problem of compensating for dimensional differences occurring in the length of adjacent stacks of semiconductors or other electronic components in an electrical assembly of such components is avoided through the use of a plurality of housing sections (12, 14, 16), one for each stack with each housing section being comprised of stacked thin sheets (20) of electrically conductive or electrically insulating material. Some of the sheets have cutouts (42, 142) to receive semiconductors (120, 150). The stacks are tied together by ribbon-like flexible tabs (18) integral with at least some of the sheets (20) and interconnecting the housing sections (12, 14, and 16). The tabs (18) are constructed to be deformable generally independently of the other of the tabs.