公开(公告)号：WO1994011795A1

公开(公告)日：1994-05-26

申请号：PCT/US1993010906

申请日：1993-11-10

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  PUTIRA, Gregory, F. ,  MARCHITTO, Edward ,  LEISTENSNIDER, George, W. ,  ALBETSKI, Alfred, J.

IPC: G05B19/401

CPC classification number: B23C3/18 ,  B23C2215/44 ,  G05B19/401 ,  G05B19/4083

Abstract: A workpiece is machined to preselected dimensions and tolerances using a computer numerically controlled machining system by probing the workpiece in the area to be machined to generate data representative of the actual position, generating a polynomial equation representative of the region of the workpiece to be machined using the measured data and preselected data indicative of the desired after machining dimensions of the workpiece generating machine tool instructions based on the generated equation, and using the instructions to machine the workpiece to the desired configuration. The method is also useful for machining features not directly measurable but relatable to the measured feature, and for machining parts where the acceptable tolerance of the mated assembly in less than the normal capability of the machining system to produce close-tolerance parts.

Abstract translation: 使用计算机数控加工系统将工件加工成预选尺寸和公差，方法是通过探测待加工区域中的工件来产生代表实际位置的数据，生成代表待加工工件区域的多项式方程，使用 测量数据和预选数据，其指示基于所生成的方程的工件生成机床指令的期望的后加工尺寸，并且使用指令将工件加工成所需的构造。 该方法对于不能直接测量但可测量特征的加工特征以及用于加工配合组件的可接受公差小于加工系统的正常能力以产生紧公差部件的部件也是有用的。

公开(公告)号：WO1994010619A1

公开(公告)日：1994-05-11

申请号：PCT/US1993009508

申请日：1993-10-05

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  RICE, Robert, W. ,  SWEET, David, H.

IPC: G05D13/64

CPC classification number: B64D31/12 ,  G07C3/00

Abstract: An engine failure monitor (50) for use with a multi-engine aircraft having at least two engines detects conditions indicative of a partial (700) or total (400) engine failure, including turbine shaft failures (600). In response to an engine failure, suitable inputs (134, 138, 712) are provided to an electronic engine control for operating the remaining engine. Additionally, indications indicative of the engine failure (132, 710) are provided to the cockpit.

Abstract translation: 一种与具有至少两个发动机的多发飞行器一起使用的发动机故障监视器（50）检测指示部分（700）或全部（400）发动机故障的条件，包括涡轮机轴故障（600）。 响应于发动机故障，适当的输入（134,138,712）被提供给用于操作剩余发动机的电子发动机控制。 此外，指示发动机故障的指示（132,710）被提供给驾驶舱。

公开(公告)号：WO1994010616A1

公开(公告)日：1994-05-11

申请号：PCT/US1993009500

申请日：1993-10-05

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  FOWLER, Donald, W. ,  LAPPOS, Nicholos, D.

IPC: G05D01/08

CPC classification number: B64C13/503 ,  F41G3/22 ,  F41G5/18 ,  F41G9/002 ,  G05D1/0858

Abstract: During operation of a flight control system in a coordinated area bombing mode, one pair in a group of pairs of fire control azimuth coordinate error signal and elevation coordinate error signals (145) are faded-in as the aircraft yaw attitude reference and pitch attitude reference, respectively. Each pair is respectively indicative of the change in aircraft yaw attitude and pitch attitude for an aircraft reference axis to be aligned with an aiming line of sight. The aiming line of sight corresponds to a target location within a selected target area. A firing signal (685) is provided in response to both the azimuth and elevation coordinate error signals being below respective threshold magnitudes, and the next pair in the group of pairs of azimuth and elevation coordinate error signals provide the aircraft attitude reference. A selected weapon is fired in response to the firing signal.

Abstract translation: 在协调区域轰炸模式下的飞行控制系统的操作期间，一组火控方位坐标误差信号和仰角坐标误差信号（145）中的一对作为飞机偏航姿态参考和俯仰姿态参考 ， 分别。 每一对分别表示与瞄准视线对准的飞行器参考轴的飞行器偏航姿态和俯仰姿态的变化。 目标瞄准线对应于所选目标区域内的目标位置。 响应于方位角和仰角坐标误差信号两者都低于相应的阈值幅度而提供点火信号（685），并且该组方位角和仰角坐标误差信号组中的下一对提供飞机姿态参考。 选择的武器是响应发射信号而被触发的。

公开(公告)号：WO1994001855A2

公开(公告)日：1994-01-20

申请号：PCT/US1993006244

申请日：1993-06-30

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  KAPOOR, Mohan L. ,  REBESCHI, Thomas, J.

IPC: G09G0

CPC classification number: G09G3/30 ,  G09G2310/027 ,  G09G2320/0204 ,  G09G2330/02

Abstract: A power supply for providing a symmetric drive for an AC electroluminescent (EL) display panel includes a single power supply which provides two voltage signal values of opposite polarity Vpos, Vneg to the panel's row drivers. The supply also corrects the difference between the two voltage signal values Vpos, Vneg as a function of the difference between the maximum column driver voltage value Vcol and its nominal value to reduce latent images on the display panel. By utilizing a single switching regulator to generate the opposite polarity row voltages Vpos, Vneg the circuit complexity and cost associated with providing a symmetric drive for an EL panel is reduced.

Abstract translation: 用于为AC电致发光（EL）显示面板提供对称驱动的电源包括单个电源，其向面板的行驱动器提供相反极性Vpos的两个电压信号值。 电源还校正两个电压信号值Vpos之间的差异，Vneg作为最大列驱动器电压值Vcol与其标称值之间的差的函数，以减少显示面板上的潜像。 通过利用单个开关调节器来产生相反极性的行电压Vpos，降低了与为EL面板提供对称驱动相关联的电路复杂性和成本。

公开(公告)号：WO1993024683A1

公开(公告)日：1993-12-09

申请号：PCT/US1993003803

申请日：1993-04-22

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  BORNSTEIN, Norman, S. ,  CHIN, Stephen ,  DUHL, David, N. ,  PARILLE, Donald ,  SHAH, Dilip, M.

IPC: C30B29/52

CPC classification number: C22C19/057 ,  C22C19/056 ,  C30B11/00 ,  C30B29/52

Abstract: Single crystal superalloy castings are described which have excellent oxidation resistance. The oxidation resistance is due to the presence of small but effective amounts of magnesium in the casting. Single crystal castings containing magnesium in the range of 5-200 parts per million, by weight, are described. Up to 100 % of the magnesium could be substituted by an equal atomic percent of calcium. The superalloy further consists essentially of, by weight percent, 1-12 chromium, 2-12 cobalt, 0-2.5 molybdenum, 3-10 tungsten, 0-8 rhenium, 2.5-13 tantalum, 0-2 titanium, 4.5-6.5 aluminum, 0-0.5 hafnium, 0-0.1 carbon, 0.0005-0.0200 magnesium, remainder nickel.

Abstract translation: 描述了具有优异抗氧化性的单晶超合金铸件。 抗氧化性是由于在铸件中存在少量但有效量的镁。 描述了含有5-200重量ppm的镁的单晶铸件。 高达100％的镁可被等原子百分比的钙取代。 超合金还基本上由重量百分比为1-12铬，2-12钴，0-2.5钼，3-10钨，0-8铼，2.5-13钽，0-2钛，4.5-6.5铝 ，0-0.5铪，0-0.1碳，0.0005-0.0200镁，余量为镍。

公开(公告)号：WO1993022552A1

公开(公告)日：1993-11-11

申请号：PCT/US1992003622

申请日：1992-04-29

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  WYNOSKY, Thomas, A. ,  MISCHKE, Robert, J.

IPC: F02K01/38

CPC classification number: F02K1/48 ,  F02K1/383 ,  F02K1/46 ,  F02K3/02

Abstract: A method and apparatus for suppressing jet noise in a gas turbine engine powerplant (10) is disclosed. Various construction details are developed for providing sound suppression at sea level take-off operative conditions and not providing sound suppression at cruise operative conditions. In one embodiment, the powerplant (10) has a lobed mixer (152) between a primary flowpath (44) and a secondary flowpath (46), a diffusion region downstream of the lobed mixer region (first mixing region (76), and a deployable ejector/mixer (176) in the diffusion region which forms a second mixing region (78) having a diffusion flowpath (72) downstream of the ejector/mixer and sound absorbing structure (18) bounding the flowpath throughout the diffusion region. The method includes deploying the ejector/mixer (176) at take-off and stowing the ejector/mixer at cruise.

Abstract translation: 公开了一种用于抑制燃气涡轮发动机动力装置（10）中的喷气噪声的方法和装置。 开发了各种构造细节，用于在海平面起飞操作条件下提供声音抑制，并且在巡航操作条件下不提供声音抑制。 在一个实施例中，动力装置（10）在初级流路（44）和二级流路（46）之间具有裂纹混合器（152），在叶裂混合区域（第一混合区域（76））下游的扩散区域和 在扩散区域中可展开的喷射器/混合器（176）形成第二混合区域（78），该第二混合区域（78）具有在喷射器/混合器的下游的扩散流路（72）和覆盖整个扩散区域的流动路径的吸声结构（18） 包括在起飞时部署喷射器/混合器（176）并且在巡航时将喷射器/混合器收起。

公开(公告)号：WO1993011449A1

公开(公告)日：1993-06-10

申请号：PCT/US1992009847

申请日：1992-11-19

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  MEINZER, Richard, A. ,  ZEPKE, Bruce, E.

IPC: G01S17/32

CPC classification number: G01S17/32 ,  G01F23/292 ,  G01F23/686 ,  G01S17/88

Abstract: A laser diode distance measurement device includes a laser diode assembly (10), comprising a laser diode and photodiode, which emits light (17) to a lens (19) which provides collimated light (20) incident on a float (22) which is covered with reflective tape on its top surface (24). The light (20) is reflected from the float (22) back to the laser diode assembly (10) which caused the assembly (10) to provide a signal having magnitude pulses (due to coherent interference) on a line (15) to a liquid level measurement circuit (14) related to the distance L to the float (22). Use of the collimated beam (20) and reflective tape on the float (22) minimizes speckle while providing adequate optical intensity feedback. The laser assembly (10) is driven by a sawtooth waveform signal that reduces electronic processing. The distance measurement circuit (14) blanks-out the feedback signal during discontinuities of the laser diode drive signal to minimize associated noise from distorting the distance measurement. Alternatively, the float may be omitted and the tube (11) made small enough to provide a meniscus effect curvature at a liquid surface (250) which provides a curved reflective surface to reflect the incident light (20), in a consistent fashion, back to the laser assembly (10).

公开(公告)号：WO1993010367A1

公开(公告)日：1993-05-27

申请号：PCT/US1992009806

申请日：1992-11-12

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  WEINBERGER, Bernard, R. ,  LYNDS, Lahmer, Jr.

IPC: F16C32/04

CPC classification number: F16C37/005 ,  F16C32/0438

Abstract: A magnetically levitated superconducting bearing includes a magnet (2) mounted on a shaft (12) that is rotatable around an axis of rotation and a Type II superconductor (6) supported on a stator (14) in proximity to the magnet (2). The superconductor (6) is positioned so that when it is cooled to its superconducting state in the presence of a magnetic field, it interacts with the magnet (2) to produce an attractive force that levitates the magnet (2) and supports a load on the shaft (12). The interaction between the superconductor (6) and magnet (2) also produces surface screening currents (8) that generate a repulsive force perpendicular to the load. The bearing also has means for maintaining the superconductor at a temperature below its critical temperature (16, 18). The bearing could also be constructed so the magnet (2) is supported on the stator (14) and the superconductor (6) is mounted on the shaft (12). The bearing can be operated by cooling the superconductor (6) to its superconducting state in the presence of a magnetic field.

公开(公告)号：WO1993009928A1

公开(公告)日：1993-05-27

申请号：PCT/US1992008232

申请日：1992-09-28

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  DAMON, Christopher, J.

IPC: B29C43/32

CPC classification number: B29D99/0014 ,  B29C43/32 ,  B29C70/345 ,  B29C70/46 ,  B29K2101/10 ,  B29L2031/3088 ,  Y10S425/044

Abstract: A composite mold that facilitates the fabrication, in a single curing step, of composite articles having opposing sets of stiffening members disposed in combination with a main structural panel. The composite mold provides for simultaneous co-curing of the opposed stiffening members in combination with the main structural panel. The composite mold includes a rigid mold assembly and a 'T' mold assembly, which, in combination, define a rigid lay-up surface for the prepreg laminates forming the main structural panel. The rigid mold assembly includes rigid members that act as reactive surfaces for cure pressures, and removable end and wedge members for assembling/disassembling of the rigid mold assembly, 'T' mold assembly combination. The 'T' mold assembly is operative during the cure process to generate the pressure required to cure the legs of one set of the stiffening members. The 'T' mold assembly includes complementary first and second pressure blocks that define the configuration of the one set of stiffening members. At least one of the complementary pressure blocks has a thermally expansible material encapsulated therein that is operative, in response to elevated temperatures experienced during the cure process, to expand, causing the complementary pressure blocks to exert the pressure necessary to cure the legs of the one set of the stiffening members.

公开(公告)号：WO1993008017A1

公开(公告)日：1993-04-29

申请号：PCT/US1992008488

申请日：1992-10-06

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  GRAFF, John, M. ,  VIOLETTE, John, A.

IPC: B29D31/00

CPC classification number: B29D99/0025 ,  B29C70/865 ,  B64C11/26 ,  Y02T50/66 ,  Y10T29/49336 ,  Y10T29/49337

Abstract: A method of manufacturing a lightweight composite propulsor blade of spar and shell construction comprises forming a composite spar (30) having an elongated foam body (20) bonded to a short metal retention tulip (10) and overlayed with a dry braided wrap of angular structural fibers and substantially unidirectional spanwisely aligned structural fiber plies disposed between the braided layers; adding a leading edge foam body (42) and a trailing edge foam body (44) to the spar assembly to form a blade subassembly (50); providing a dry braided fabric wrap over the blade assembly; disposing the fabric covered blade subassembly into a shell molding die and simultaneously impregnating the dry spar fabric wrap and the dry shell fabric wrap with a curable resin material; and curing the impregnated blade subassembly.