公开(公告)号：WO1995022488A1

公开(公告)日：1995-08-24

申请号：PCT/US1995002010

申请日：1995-02-16

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  MAGLIOZZI, Bernard

IPC: B64C11/50

CPC classification number: G10K11/175 ,  B64C11/50 ,  Y10S416/50

Abstract: An "adaptive synchrophaser" is disclosed for modifying the phase angle relationship between aircraft propellers to reduce cabin noise and/or vibration. Rather than use a constant pre-selected angle for a specific passenger cabin configuration during a particular flight mode (e.g. during liftoff or cruise), the synchrophaser periodically monitors actual operating conditions and modifies the phase angle accordingly. In the preferred embodiment, a plurality of transducers (microphones) (16-20) are installed at several cabin locations to sample noise periodically. The signals are then transmitted via a signal conditioner (26), a multiplexer (28) and an analog-to-digital converter (30) to a signal processor (32). The processor calculates the maximum acoustic noise at each microphone location (16-20) for all possible phase angles. It then identifies the optimum phase angle that resulted in the lowest maximum noise anywhere in the cabin (24), and signals a synchrophaser (14) to set that angle. This process not only reduces noise based on actual on-going conditions, but also balances the cabin noise so that there are not any "hot" seats with high noise levels.

Abstract translation: 公开了一种“自适应同步激光器”，用于修改飞行器螺旋桨之间的相位角关系，以减少驾驶室噪音和/或振动。 在特定飞行模式（例如在起飞或巡航期间），不是对特定客舱配置使用恒定的预选角度，同步器周期性地监视实际操作条件并相应地修改相位角。 在优选实施例中，多个换能器（麦克风）（16-20）安装在几个机舱位置以周期性地采样噪声。 然后，信号经由信号调节器（26），多路复用器（28）和模拟 - 数字转换器（30）传输到信号处理器（32）。 处理器可以计算每个麦克风位置（16-20）对于所有可能的相位角度的最大声学噪声。 然后，它识别导致机舱（24）中任何位置处最低最大噪声的最佳相位角，并且向同步激励器（14）发信号以设定该角度。 这个过程不仅可以根据实际的持续条件降低噪音，还可以平衡机舱噪音，使得没有任何高噪音级别的“热”座椅。

公开(公告)号：WO1995018916A1

公开(公告)日：1995-07-13

申请号：PCT/US1995000111

申请日：1995-01-04

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  SYLVESTRO, Joseph, A.

IPC: F01D05/18

CPC classification number: F01D5/189 ,  F05D2260/201

Abstract: Tube (16) within airfoil (10) carries cooling air. Flow openings (28) in the tubes direct cooling air (29) against the airfoil inner surface (14) for impingement cooling. Protrusions (30) form extended surface in the form of segmented trip strips are located with at least same in registration with openings (28). The chamber (18) between the tube (16) and surface (14) has an increasing flow area toward air exit (20).

Abstract translation: 机翼（10）内的管（16）承载冷却空气。 管中的流动开口（28）将冷却空气（29）直接靠在机翼内表面（14）上以进行冲击冷却。 以分段跳闸带的形式形成延伸表面的凸起（30）至少与开口（28）对齐地定位。 管（16）和表面（14）之间的腔室（18）具有朝向空气出口（20）的增加的流动面积。

公开(公告)号：WO1995017705A2

公开(公告)日：1995-06-29

申请号：PCT/US1994011059

申请日：1994-09-30

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  GLENN, William, H.

IPC: G03H01/00

CPC classification number: G02B6/02133 ,  G02B6/02123 ,  Y10S359/90

Abstract: A method and apparatus for simultaneously exposing an optical fiber (32), made of a material which has a refractive index that can be permanently changed by exposure to light of a predetermined intensity at a predetermined wavelength, to two writing light beams (268, 272) which intersect and interfere in a predetermined region (30) of the fiber (32) so as to create an interference pattern along a longitudinal axis of the fiber (32), for a time long enough to form a permanent refractive index variation in the waveguide. Each of said two writing beams have a predetermined number of wavelengths, each wavelength being sufficiently different from each other so as to cause said refractive index variation to be an aperiodic variation. Also, each wavelength represents a Fourier component of the desired aperiodic refractive index variation.

Abstract translation: 一种用于同时曝光由具有预定波长的预定强度的光可以永久改变的折射率的材料制成的光纤（32）到两个写入光束（268,272）的方法和装置 ），其在纤维（32）的预定区域（30）中相交并干涉，以便沿纤维（32）的纵向轴线产生干涉图案足够长的时间以在 波导。 所述两个写入光束中的每一个具有预定数量的波长，每个波长彼此充分不同，以使所述折射率变化为非周期性变化。 此外，每个波长表示期望的非周期折射率变化的傅立叶分量。

公开(公告)号：WO1995017336A1

公开(公告)日：1995-06-29

申请号：PCT/US1994013659

申请日：1994-11-30

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  FURS, Stanley ,  GROM, Glen ,  MILLER, Paul, W. ,  WANG, David, E. ,  BERARDI, Arthur, F.

IPC: B64D37/04

CPC classification number: B64D37/02 ,  Y10S29/044 ,  Y10T29/49721 ,  Y10T29/49817 ,  Y10T29/49821 ,  Y10T29/49822

Abstract: A method for removing a fuel cell from an aircraft fuselage cavity includes the steps of sealing the fuel cell by securing complementary covers and gaskets or O-rings in combination with the ports of the fuel cell (12) installing an evacuation system in combination with the fuel cell (14), operating the evacuation system to evacuate the sealed fuel cell (16) wherein the ambient air pressure of the aircraft fuselage cavity collapses the fuel cell to a predetermined height, and removing the collapsed fuel cell from the aircraft fuselage cavity (18).

Abstract translation: 一种用于从飞行器机身腔体去除燃料电池的方法包括以下步骤：通过将互补的盖和垫圈或O形环与燃料电池（12）的端口相结合来密封燃料电池，所述燃料电池（12）的端口与所述燃料电池 燃料电池（14），操作抽空系统以抽空密封的燃料电池（16），其中飞行器机身空腔的环境空气压力将燃料电池塌陷到预定高度，以及从飞行器机身空腔去除塌陷的燃料电池 18）。

公开(公告)号：WO1995008473A1

公开(公告)日：1995-03-30

申请号：PCT/US1994009621

申请日：1994-08-24

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  TONI, Darryl, M. ,  GRANT, Peter, L. ,  JOHNSON, Craig, F. ,  HAYSE, Steven, R. ,  FORSTER, William, V. ,  NOWAK, Kenneth ,  OSIECKI, Larry, J.

IPC: B64D33/04

CPC classification number: F41H3/00 ,  B29D24/007 ,  B64D33/04 ,  F15D1/08 ,  F42B7/00 ,  Y10T428/24149 ,  Y10T428/24496

Abstract: A duct cover (12) for use with a duct (4) within a vehicle, the duct cover (12) operative for directing a fluid flow. The duct cover being further operative for minimizing the entrance of foreign object debris into the duct (4). The duct cover (12) has a flow directing honeycomb portion (16) for conducting the passing fluid flow in a preferred direction. The flow directing honeycomb (16) comprises an array of continuous, polygon shaped open cells (20) which are biased with respect to the initial fluid flow direction. The periphery (17) of the flow directing honeycomb (12) is rigidized to stiffen the same for minimizing the displacements thereof. The rigidity is provided by a framing member comprising upper and lower skin structures (28, 29) affixed to a core material (30). The framing member is preferably adhesively bonded to the flow directing honeycomb (16) by means of a foaming adhesive (36) and a barrier member (38). The barrier member (38) is operative for minimizing the expansion of the foaming adhesive (36) into the open cells (20) of the honeycomb (16). In order to improve the low observability characteristics of the structure, the cells (20) of the flow directing honeycomb (16) are preferably coated with a radar absorbent material, such as carbon, which acts to minimize the amount of electromagnetic energy that is reflected therefrom.

Abstract translation: 一种与车辆内的管道（4）一起使用的管道盖（12），所述管道盖（12）用于引导流体流动。 管道盖还可操作以最小化异物残留物进入管道（4）的入口。 管道盖（12）具有导流蜂窝部分（16），用于在优选的方向上传导通过的流体流。 导流蜂窝（16）包括相对于初始流体流动方向偏置的连续多边形开放单元（20）的阵列。 导流蜂窝体（12）的周边（17）被硬化以使其加强，以使其移动最小化。 刚性由包括固定在芯材（30）上的上，下皮肤结构（28,29）的框架构件提供。 框架构件优选通过发泡粘合剂（36）和阻挡构件（38）粘合地结合到导流蜂窝体（16）。 阻挡构件（38）用于最小化发泡粘合剂（36）到蜂窝（16）的开孔（20）中的膨胀。 为了改善结构的低观察性特征，导流蜂窝（16）的电池（20）优选地涂覆有诸如碳的雷达吸收材料，其用于最小化被反射的电磁能量的量 由此。

公开(公告)号：WO1995004891A1

公开(公告)日：1995-02-16

申请号：PCT/US1994008976

申请日：1994-08-09

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  DICKIE, Paul, A. ,  KLEIS, Kurtis, D. ,  MIKE, Michael, A.

IPC: F16J15/34

CPC classification number: F16J15/38 ,  F16J15/3476

Abstract: A seal assembly (18) for blocking the leakage of fluid between a first region (26) and a second region (28) is disclosed. Various construction details are developed for improving the sealing capability under operative conditions which cause a severe reverse pressure gradient across the seal assembly. In one particular embodiment, the seal assembly includes a seal (36) having a front (88) which faces the first region and a pair of sidewalls (92, 94) which extend from the front and are urged apart by a spring means (96).

Abstract translation: 公开了一种用于阻止流体在第一区域（26）和第二区域（28）之间的泄漏的密封组件（18）。 开发了各种结构细节，以改善在操作条件下的密封能力，这导致密封组件的严重的反向压力梯度。 在一个具体实施例中，密封组件包括密封件（36），其具有面向第一区域的前部（88）和从前部延伸并被弹簧装置（96）推压的一对侧壁（92,94） ）。

公开(公告)号：WO1995003154A1

公开(公告)日：1995-02-02

申请号：PCT/US1993005071

申请日：1993-07-19

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  CAMPBELL, James, D.

IPC: B24B01/00

CPC classification number: B24B55/02 ,  B24B1/00

Abstract: This invention relates to the grinding of titanium alloys (20) and particularly to the grinding of titanium alloys (20) using electroplated synthetic diamond wheels (10) with a surface speed (Vs) in excess of 2290 surface meters per minute. Other operating parameters, such as depth of cut (a), grit size of the wheels (10), are defined which permit the effective grinding of the titanium alloys (20) at high rates and which produce desirable residual compressive stresses in the surface of the ground article.

Abstract translation: 本发明涉及钛合金（20）的研磨，特别涉及使用表面速度（Vs）超过2290米/分钟的电镀合成金刚石砂轮（10）研磨钛合金（20）。 定义其他操作参数，如切割深度（a），砂轮（10）的砂粒尺寸，其允许钛合金（20）以高速度有效研磨，并且在表面中产生理想的残余压应力 地面文章。

公开(公告)号：WO1994029650A1

公开(公告)日：1994-12-22

申请号：PCT/US1994006616

申请日：1994-06-09

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  MCELROY, James, F. ,  SMITH, William, F. ,  GENOVESE, Joseph, E.

IPC: F24F06/02

CPC classification number: F24F3/14 ,  F24F6/00 ,  F24F2003/1435 ,  Y02A20/109 ,  Y10S261/46

Abstract: A membrane humidifying device (10) is disclosed that can operate with normal potable quality water without a demineralizer and which prevents the transport of microbes, particulates, dissolved salts and liquid water to the airstream. It is positioned in the flow path of air to be humidified and comprises at least one membrane cell (12) and a means for introducing water into each cell. The membrane cell (12) is comprised of at least one sheet of a hydrophilic membrane (16) and at least two screens (18a, b). Ambient or low pressure water is introduced into the membrane cell(s) (12); at least a portion of which contacts or passes through the screen(s) (18a, b); contacts the hydrophilic membrane(s) (16a, b); and is osmotically transported across the membrane(s) (16a, b) where it evaporates into the airstream.

Abstract translation: 公开了一种膜加湿装置（10），其可以在没有软化器的情况下与正常的饮用水质的水一起操作，并且防止微生物，微粒，溶解的盐和液态水运送到气流。 它位于待加湿的空气的流动路径中，并且包括至少一个膜池（12）和用于将水引入每个池中的装置。 膜细胞（12）由至少一层亲水膜（16）和至少两个筛（18a，b）组成。 将环境或低压水引入膜细胞（12）中; 其至少一部分接触或通过所述筛网（18a，b）; 接触亲水膜（16a，b）; 并渗透通过膜（16a，b），在那里蒸发到气流中。

公开(公告)号：WO1994023077A1

公开(公告)日：1994-10-13

申请号：PCT/US1994002681

申请日：1994-03-14

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  LINSEY, Gary, D. ,  CHEN, Otis, Y. ,  BLACKBURN, Martin, J.

IPC: C22C01/09

CPC classification number: C22C14/00 ,  C22C49/12 ,  Y10T428/12035 ,  Y10T428/12049 ,  Y10T428/12056 ,  Y10T428/12063

Abstract: A titanium alloy matrix fiber reinforced composite made from titanium alloy sheet processed to have ductility up to about 35 %. Of particular usefulness is the composite having a Ti3A1 titanium aluminide having this level of ductility. The composites have good resistance to thermal cyclic fatigue. Preferred reinforcing fibers are silicon carbide. The processing involves multiple working steps below the beta transus with intervening thermal annealing steps, also at temperatures below the beta transus.

Abstract translation: 由钛合金板制成的钛合金基体纤维增强复合材料具有高达约35％的延展性。 特别有用的是具有这种延展性水平的Ti3Al钛铝化合物。 复合材料具有良好的耐热循环疲劳性能。 优选的增强纤维是碳化硅。 该处理涉及在β转子之下的多个工作步骤，具有介入的热退火步骤，也在低于β转子的温度下。

公开(公告)号：WO1994022617A1

公开(公告)日：1994-10-13

申请号：PCT/US1994002699

申请日：1994-03-14

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  JUDD, James, A. ,  RAZZAQ, Zaffar, Ahmad

IPC: B22C09/04

CPC classification number: B22C9/04 ,  B22C7/02 ,  B22C9/10 ,  B22C21/14 ,  Y10T29/49339 ,  Y10T29/49341

Abstract: A method for casting metering holes connecting the inner and outer surfaces of hollow investment cast objects, such as hollow air cooled gas turbine airfoils. The method incorporates mini cores having metering hole pins which extend further into the inner cavity than the surface of the cavity, so that the ends of the holes can be exposed by a subsequent machining operation. The method also includes forming a wax pattern which avoids contact between the wax and the metering hole pins so that the pins are not broken by the wax during the heatup portion of the wax removal step after formation of the ceramic casting mold.

Abstract translation: 一种用于铸造计量孔的方法，其连接中空投射物体的内表面和外表面，例如空心空气冷却的燃气涡轮机翼型。 该方法包括具有比空腔的表面进一步延伸到内腔中的计量孔销的微型芯，使得孔的端部可以通过随后的加工操作而暴露。 该方法还包括形成蜡图案，其避免蜡和计量孔销之间的接触，使得在形成陶瓷铸模之后的蜡去除步骤的加热部分期间，销不被蜡破坏。