公开(公告)号：WO1991009217A1

公开(公告)日：1991-06-27

申请号：PCT/US1990007156

申请日：1990-12-07

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  BATAKIS, Anthony ,  SHEKLETON, Jack, R.

IPC: F02C01/00

CPC classification number: F23R3/28

Abstract: Manifold head effects at low fuel flows in a fuel injected air breathing turbine are minimized by utilizing fuel injectors having fuel injecting tubes (66) with open ends (70) for fuel injection and provided with elongated capillary tubes (88) upstream thereof and connected to receive fuel from a fuel manifold (48) while uniform, relatively low velocity fuel exit flow from the ends (70) the injecting tubes (66) is achieved through the use of internal impingement surfaces (96, 102, 106, 110, 124).

Abstract translation: 通过使用具有燃料喷射管（66）的燃料喷射器（66），燃料喷射空气呼吸涡轮中的低燃料流动的歧管头部效应被最小化，燃料喷射管具有用于燃料喷射的开口端（70），并在其上游设置有细长的毛细管（88）并连接到 从燃料歧管（48）接收燃料，同时通过使用内部冲击表面（96,102,106,110,124）实现来自端部（70）的均匀，相对低速的燃料出口流动， 。

公开(公告)号：WO1991007767A1

公开(公告)日：1991-05-30

申请号：PCT/US1990005715

申请日：1990-10-04

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  JOHNSON, Gregory, G. ,  VANDERZYDEN, Henry, R.

IPC: H01H09/00

CPC classification number: F16D11/04 ,  H01H37/36

Abstract: Inoperability due to solenoid freeze up, electrical malfunction or human error in a mechanical disconnect system can be avoided through the use of an electric and thermal operator including a pin (52) mounted for axial movement and having opposed ends (82, 102), a solenoid (44) having a coil (66) and an armature (68) adjacent to and connected to one end (82) of the pin (52), a housing (90, 94) including a cavity (96) containing a material that undergoes sudden, substantial volumetric increase in response to increasing temperature accompanied by a solid to liquid phase change and a movable element (112) in non-connected but abutting relation with one of the armature (68) and the end (82) of the pin (52) and extending toward the cavity (96) in contact with the material therein. The pin (52) may be moved to start a disconnect either in response to movement of the armature (68) or to the movable element (112).

Abstract translation: 通过使用包括安装成轴向运动并具有相对端（82,102）的销（52）的电动和热操作器可以避免机械断开系统中的螺线管冻结，电气故障或人为错误导致的不可操作性， 螺线管（44）具有与所述销（52）的一端（82）相邻并连接到所述销（52）的一端（82）的线圈（66）和衔铁（68），壳体（90,94）包括空腔（96） 随着伴随着固液相变的温度升高而响应于突然大量的体积增加，并且与销的电枢（68）和端部（82）中的一个处于非连接但邻接关系的可移动元件（112） （52）并且朝向与其中的材料接触的空腔（96）延伸。 销（52）可以被移动以响应于电枢（68）或可移动元件（112）的运动而开始断开。

公开(公告)号：WO1991003096A1

公开(公告)日：1991-03-07

申请号：PCT/US1990004074

申请日：1990-07-19

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  SHAHAMAT, Mohammad ,  MANSIR, Hassan

IPC: H02K11/00

CPC classification number: H02K19/36 ,  H02K11/01 ,  H02K11/27

Abstract: The problem of effectively and quickly detecting fault conditions in an electromotive machine (10) is solved using a current transformer assembly (28) having a neutral lead (44). The neutral lead (44) comprises a single piece copper strap (80) having laterally extending strips or posts (81-83) provided for connection to the neutral end conductors (31-33) of armature windings (22 and 24). The strap (80) is punched and bent into shape to include the three neutral posts (81-83). Each neutral post (81-83) carries a current transformer (46-48).

公开(公告)号：WO1990008417A1

公开(公告)日：1990-07-26

申请号：PCT/US1989005635

申请日：1989-12-08

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  RECKER, Bradley, J. ,  ROZMAN, Christopher, J. ,  ROE, Derrick, I.

IPC: H02J03/38

CPC classification number: H02J3/42 ,  Y02T50/54 ,  Y10T307/313 ,  Y10T307/516 ,  Y10T307/735

Abstract: In aircraft applications, it may be necessary or desirable to transfer one or more loads between a variable speed, constant frequency (VSCF) power generating system and a further source of AC power. Prior controls for effecting such transfer, however, have been unduly complex. In order to overcome this problem, a control for a VSCF system senses the deviation of a parameter of the power developed by an inverter of the system relative to a parameter of the power developed by an AC power source and controls the inverter in accordance with such deviation to cause the parameter of the power developed thereby to approach the parameter of the power developed by the AC power source. The inverter and the AC power source are connected in parallel across one or more loads when the parameter deviation is within a certain range. Either the inverter or the AC power source is thereafter disconnected a certain time after the two were connected in parallel to complete the power transfer.

公开(公告)号：WO1990008390A1

公开(公告)日：1990-07-26

申请号：PCT/US1989005659

申请日：1989-12-08

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  HOPPE, Richard, J. ,  METZLER, Mark, W.

IPC: H01F27/10

CPC classification number: H01F27/10 ,  H01F27/085 ,  H01F27/22

Abstract: Plate fin heat exchangers (11, 12 or 34, 35, 36) for transformers (10) and inductors (30) made of laminated iron cores (16 or 44) and insulated wire coils (13, 14, 15 or 45, 46, 47, 48) placed around the legs of the cores (16 or 44) are provided in the form of a plate fin between the coils of wire. The wire coils (13, 14, 15 or 45, 46, 47, 48) and respective heat exchangers (11, 12 or 34, 35, 36) are sandwiched together with the leg of the iron core (16 or 44) passing through the sandwich. The heat generated in the coils is in direct contact with the surface of the heat exchangers (11, 12 or 34, 35, 36). A narrow air gap (28 or 49) is incorporated in each of the plate fin heat exchangers (11, 12 or 34, 35, 36) at the core leg of each coil (13, 14, 15 or 45, 46, 47, 48) to reduce the path eddy currents can travel and thereby reduce eddy current losses which reduce the power of the transformer (10) or inductor (30).

公开(公告)号：WO1990007087A1

公开(公告)日：1990-06-28

申请号：PCT/US1989005225

申请日：1989-11-16

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  SHEKLETON, Jack, R.

IPC: F23R03/16

CPC classification number: F23R3/16 ,  F02C3/05 ,  F23R3/045 ,  F23R3/54

Abstract: Warping of the rear turbine shroud (54) and the resulting cracking of turbine nozzle vanes (24) may be eliminated in a radial inflow turbine having an annular combustor (30) with a radially outer wall (32) opening on a compressed air plenum (48) by locating a plurality of tubes (70) on the radially outer wall (32) in fluid communication with the plenum (48) and extending the tubes (70) inwardly so that the radially inner ends (76) are adjacent the radially outer edge (56) of the turbine shroud (54). The tubes (70) thus direct sweeping streams of cooling air along the rear turbine shroud (54) to cool the same and prevent warpage.

公开(公告)号：WO1990006016A1

公开(公告)日：1990-05-31

申请号：PCT/US1989004475

申请日：1989-10-10

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  ROZMAN, Gregory, I. ,  MARKUNAS, Albert, L.

IPC: H02P03/18

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

Abstract: The problem of providing an engine starting system from any one of a plurality of input power sources is solved with an engine start control apparatus operating a generator (12) as a synchronous motor and employing input power limiting. The motor receives power from a main inverter (46) and a control unit which provides for input power limiting and also constant power characteristics in the field weakening range. The control unit includes a pulse width modulation (PWM) generator (22) which is responsive to a voltage command and a commutation command to develop switching signals for controlling the switches in the start inverter. 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. In addition to commutation angle control, the start control system employs field weakening control to obtain constant power characteristics.

公开(公告)号：WO1990006014A1

公开(公告)日：1990-05-31

申请号：PCT/US1989004441

申请日：1989-10-10

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  SHEKHAWAT, Sampat, S. ,  SHAH, Mahesh, J. ,  DHYANCHAND, John, J.

IPC: H02M07/5387

CPC classification number: H02M7/5387 ,  H02M5/10

Abstract: A three phase inverter (40) is disclosed for use with loads (100) which are unbalanced. A transformer (80) having primary windings (82), (84) and (86) which are respectively connected to phase outputs (52, 54 and 56) has a secondary having individual windings (88, 90 and 92) connected in a delta configuration which minimizes the flow of unbalanced current in the unbalanced load. A second embodiment utilizes a transformer in an interconnected configuration. A neutral connecting the conductive switches to the load is unnecessary with the invention.

公开(公告)号：WO1990005380A1

公开(公告)日：1990-05-17

申请号：PCT/US1989004313

申请日：1989-09-29

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  CROWE, Lawrence, E.

IPC: H01L23/46

CPC classification number: H01L23/427 ,  F28D15/0233 ,  F28F3/027 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A modular reflux cooling plate (10) having a condensing region (11), boiling channels (12) and downcomers (16) which effect reflux cooling of electrical power modules used in aircraft and the like. The condenser (11) and boiling channels (12) can be constituted by longitudinally disposed lanced offset fins (11, 12). Air flow fins (18) are arranged adjacent the condenser (11) to effect cooling of a coolant vapor which has entered the condenser (11) after being boiled from a liquid state in the boiling channels (12) as a result of the heat generated by one or more power modules affixed to an end plate (14) by any suitable means. Temporary thermal storage can be provided in the form of either a thickened end plate (14) or a chamber having lanced offset fins (25) and a normally solid or semi-solid material such as wax or solder.

公开(公告)号：WO1990004714A1

公开(公告)日：1990-05-03

申请号：PCT/US1989004293

申请日：1989-09-29

Applicant: SUNDSTRAND CORPORATION

Inventor： SUNDSTRAND CORPORATION ,  JONES, Anthony, C. ,  WEBER, Henry, A.

IPC: F02K03/10

CPC classification number: F02K1/78 ,  F02C7/04 ,  F02C7/22 ,  Y02T50/671

Abstract: The high cost of fabrication of a turbojet propulsion system (12) for a missile having an engine (18), mounted within a casing (14), including an inlet (20) to a compressor (22) and an exhaust gas outlet (24) is avoided in a structure having a propulsion system (12) with an inlet (26, 28) located forward of the engine (18) for directing free stream air to the inlet (20) of the compressor (22), an outlet (30, 33) located aft of the engine (18) for directing exhaust gas into free stream air, an engine starter (42) aft of the engine outlet (24), and a fuel storing bladder (46) forward of the engine (18).