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    USE OF BIASED FABRIC TO IMPROVE PROPERTIES OF SiC/SiC CERAMIC COMPOSITES FOR TURBINE ENGINE COMPONENTS
    4.
    发明申请
    USE OF BIASED FABRIC TO IMPROVE PROPERTIES OF SiC/SiC CERAMIC COMPOSITES FOR TURBINE ENGINE COMPONENTS 有权
    用于改进碳纤维/ SiC陶瓷复合材料对涡轮发动机部件性能的偏心织物的使用

    公开(公告)号：US20070082201A1

    公开(公告)日：2007-04-12

    申请号：US11424722

    申请日：2006-06-16

    申请人： Suresh Subramanian ,  James Steibel ,  Douglas Carper ,  Brian Flandermeyer

    发明人： Suresh Subramanian ,  James Steibel ,  Douglas Carper ,  Brian Flandermeyer

    IPC分类号： B32B9/00

    CPC分类号： F01D5/282 ,  F01D5/284 ,  F05C2203/0839 ,  F05D2300/2261 ,  F05D2300/6012 ,  Y02T50/67 ,  Y02T50/672 ,  Y10T428/30

    摘要： The present invention is a ceramic matrix composite turbine engine component, wherein the component has a direction of maximum tensile stress during normal engine operation. The component comprises a plurality of biased ceramic plies, wherein each biased ply comprises ceramic fiber tows, the tows being woven in a first warp direction and a second weft direction, the second weft direction lying at a preselected angular orientation with respect to the first warp direction, wherein a greater number of tows are woven in the first warp direction than in the second weft direction, and wherein a number of tows in the second weft direction allows the biased plies to maintain their structural integrity when handled. The plurality of biased plies are laid up in a preselected arrangement to form the component, and a preselected number of the plurality of biased plies are oriented such that the orientation of the first warp direction of the preselected number of biased plies lie about in the direction of maximum tensile stress during normal engine operation. A coating is applied to the plurality of biased plies. The coating is selected from the group consisting of BN, SiC, and combinations thereof. A ceramic matrix material lies in interstitial regions between the tows of each biased ply and the interstitial region between the biased plies.

    摘要翻译： 本发明是一种陶瓷基体复合涡轮发动机部件，其中该部件在正常发动机运转期间具有最大拉伸应力的方向。 所述组件包括多个偏置的陶瓷层，其中每个偏置层包括陶瓷纤维丝束，所述丝束以第一经向和第二纬向织造，所述第二纬向相对于所述第一翘曲位于预选角度方向 方向，其中在第一经向方向上比在第二纬向上编织更多数量的丝束，并且其中在第二纬向方向上的多个丝束允许偏置层在处理时保持其结构完整性。 多个偏置层叠被布置成预选的布置以形成部件，并且多个偏置层的预选数量被定向成使得预选数量的偏置层片的第一经向方向的取向位于方向 在正常发动机运行期间最大拉伸应力。 将涂层施加到多个偏压层。 涂层选自BN，SiC及其组合。 陶瓷基质材料位于每个偏置层的丝束之间的间隙区域和偏置层之间的间隙区域之间。

    Method and apparatus for performing analog mode operations when receiving data and signaling tones in a wireless TDMA system
    6.
    发明授权
    Method and apparatus for performing analog mode operations when receiving data and signaling tones in a wireless TDMA system 失效
    在无线TDMA系统中接收数据和信令音时，执行模拟模式操作的方法和装置

    公开(公告)号：US06687314B1

    公开(公告)日：2004-02-03

    申请号：US09517997

    申请日：2000-03-03

    申请人： Eric David Leonard ,  Suresh Subramanian ,  David James Thomson

    发明人： Eric David Leonard ,  Suresh Subramanian ,  David James Thomson

    IPC分类号： H04L2716

    CPC分类号： H04L25/067 ,  H04L7/027 ,  H04L7/046 ,  H04L27/14

    摘要： A method and apparatus are provided for use in a transceiver of a wireless system that enable analog mode operations to be performed using in-phase (I) and quadrature (Q) values. When operating in the analog mode, the apparatus comprises a processor that receives digital I, Q pairs relating to audio or data signals and performs FM demodulation to generate information content relating to the audio or data signals. When receiving data in the analog mode, the data is in a particular format.

    摘要翻译： 提供了一种在无线系统的收发器中使用的方法和装置，其使得能够使用同相（I）和正交（Q）值来执行模拟模式操作。 当在模拟模式下操作时，该装置包括处理器，其接收与音频或数据信号相关的数字I，Q对，并执行FM解调以产生与音频或数据信号相关的信息内容。 当以模拟模式接收数据时，数据是特定的格式。

    Composite blading member and method for making
    10.
    发明申请
    Composite blading member and method for making 有权
    复合叶片及其制造方法

    公开(公告)号：US20070148000A1

    公开(公告)日：2007-06-28

    申请号：US11315552

    申请日：2005-12-22

    申请人： Mark Williard Marusko ,  Suresh Subramanian

    发明人： Mark Williard Marusko ,  Suresh Subramanian

    IPC分类号： F01D11/00

    CPC分类号： F01D5/282 ,  F05D2230/23 ,  F05D2300/2261 ,  F05D2300/603 ,  Y10T29/49336 ,  Y10T29/49337

    摘要： A composite blading member includes an airfoil and a base of composite material layers and a platform of composite material layers interfused with the airfoil and base. The platform comprises a platform shelf and a plurality of spaced-apart platform supports integral with the platform shelf and interfused with surfaces of the base. Such blading member was made by providing a partially cured airfoil-base preform and a platform preform, including an airfoil shaped opening therethrough and preforms of the platform supports. The airfoil-base preform was inserted through the airfoil shaped opening whereby cooperating surfaces of the platform preform and airfoil-base preform were in juxtaposition. The preforms were heated to partially cure them together. Then they were interfused with a binder compatible with material of the preforms under conditions to substantially fully cure the structures.

    摘要翻译： 复合叶片构件包括翼型件和复合材料层的基部以及与翼型件和基座相互连接的复合材料层的平台。 该平台包括平台架和与平台架一体的多个间隔开的平台支架，并与底座的表面相互连接。 通过提供部分固化的翼型坯预成型件和平台预成型件，包括通过其的翼型形状的开口和平台支撑件的预制件来制造这种叶片构件。 将翼型坯预成型件插入通过翼型形状的开口，由此平台预成型件和翼型坯预成型件的配合表面并列。 将预成型件加热以将它们部分固化在一起。 然后在与基体完全固化结构的条件下，将它们与与预型件的材料相容的粘合剂进行混合。