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    Process for producing a laminated tubular fibrous structure for use as reinforcing structure for a composite piece
    2.
    发明授权
    Process for producing a laminated tubular fibrous structure for use as reinforcing structure for a composite piece 失效
    用于复合片的加强结构的叠层管状纤维结构体的制造方法

    公开(公告)号：US4986863A

    公开(公告)日：1991-01-22

    申请号：US253223

    申请日：1988-09-28

    申请人： Jean D. Denoel ,  Michel C. Vives ,  Christian Bertone

    发明人： Jean D. Denoel ,  Michel C. Vives ,  Christian Bertone

    IPC分类号： D06J1/12 ,  B29C53/08 ,  B29C53/30 ,  B29C70/16 ,  B29C70/22 ,  B29D23/00

    CPC分类号： B29C70/222 ,  B29C53/08 ,  B29C53/305 ,  Y10T156/1015

    摘要： A laminated tubular fibrous structure is produced using a tubular braid and folding over its wall in order to form corrugations or wrinkles superposed in axial direction. The tubular braid is brought over a mandrel of which the inner diameter corresponds to that of the structure to be produced, by causing the braid to pass around a forming head which is mounted on the mandrel and of which the outer diameter corresponds to that of the structure to be produced, and at least one yarn is wound following a helicoidal path on the braid, around the mandrel and at the front of the forming head, between said head and a counter-piece of which the faces in facing relationship have shapes corresponding to the shape of the wrinkles to be produced, the winding of the yarn being performed while the forming head is moving away from the counter-piece progressively with the formation of the wrinkles. The structure is particularly suitable for use as reinforcing structure for producing pieces in composite material, such as ablative thermal protections for solid propellant rocket motors.

    摘要翻译： 使用管状编织物制造层压管状纤维结构，并在其壁上折叠以形成沿轴向重叠的褶皱或褶皱。 通过使编织物绕安装在心轴上的成形头通过，将管状编织带通过其内径对应于待生产的结构的心轴，并且其外径对应于 要生产的结构，并且至少一根纱线沿着编织物上的螺旋形路径，围绕心轴和形成头部的前部缠绕在所述头部和相对的面对面之间具有相应形状的对置件 为了产生皱纹的形状，在成形头随着皱纹的形成逐渐离开对立件而进行纱线的缠绕。 该结构特别适用于复合材料制造件的增强结构，例如用于固体推进剂火箭发动机的烧蚀保护。

    Microwave antenna capable of operating at high temperature, in particular for a space-going aircraft
    3.
    发明授权
    Microwave antenna capable of operating at high temperature, in particular for a space-going aircraft 失效
    特别适用于高空作业的微波天线

    公开(公告)号：US5231409A

    公开(公告)日：1993-07-27

    申请号：US464983

    申请日：1990-01-16

    申请人： Jean-Pierre Astier ,  Christian Bertone ,  Alain Dujardin

    发明人： Jean-Pierre Astier ,  Christian Bertone ,  Alain Dujardin

    IPC分类号： H01Q1/28 ,  H01Q1/40 ,  H01Q13/02 ,  H01Q13/18 ,  H01Q21/06

    CPC分类号： H01Q21/064 ,  H01Q1/40 ,  H01Q13/18

    摘要： A microwave antenna capable of operating at high temperature comprises at least one waveguide opening to the outside through an opening in a covering panel and including a tubular portion integrally formed with the panel, projecting inwards therefrom, and connected to the remainder of the panel around the opening, the panel and the integrated waveguide being made of a refractory composite material capable of ensuring microwave propagation and constituting a structural element capable of being raised to high temperature. The waveguide is filled with a refractory dielectric material such as an alumina-alumina type composite material.

    摘要翻译： 能够在高温下操作的微波天线包括至少一个通过覆盖面板中的开口向外部开口的波导，并且包括与面板一体形成的管状部分，从其向内突出并连接到面板周围的其余部分 开口，面板和集成波导由能够确保微波传播并构成能够升高到高温的结构元件的耐火复合材料制成。 波导填充有耐火电介质材料，例如氧化铝 - 氧化铝型复合材料。