Thermal protection system
    5.
    发明授权
    Thermal protection system 失效
    热保护系统

    公开(公告)号:US5322725A

    公开(公告)日:1994-06-21

    申请号:US238957

    申请日:1988-08-31

    摘要: A passive thermal protection system that overcomes the disadvantages of the polyurethane "water wall" includes a fiberformed ceramic insulation, a plurality of electrodes embedded in the insulation to define a wick panel, and a gelled ceramic sol in the wick panel. The system can be prepared by introducing the sol into the wick panel with its subsequent gelling by applying a direct current across the electrodes. Cooling water is held in the gelled sol to provide passive cooling, yet the system easily achieves even distribution of the water (even when subject to accelerations) without the use of pre-gelled or viscous reagents.

    摘要翻译: 克服聚氨酯“水壁”的缺点的被动热保护系统包括纤维成形陶瓷绝缘体,嵌入绝缘体中的多个电极以限定芯芯板,以及芯芯板中的凝胶状陶瓷溶胶。 该系统可以通过在电极上施加直流电流将溶胶引入到芯组中并随后凝胶化而制备。 冷凝水保持在凝胶溶胶中以提供被动冷却,但是系统容易实现水的均匀分布(即使在加速时),也不会使用预凝胶或粘性试剂。

    Quick installation-removal thermal insulation blanket for space craft
    7.
    发明授权
    Quick installation-removal thermal insulation blanket for space craft 失效
    太空船快速安装除热保温毯

    公开(公告)号:US5928752A

    公开(公告)日:1999-07-27

    申请号:US885601

    申请日:1997-06-30

    摘要: The invention provides a thermal insulation blanket suitable for removable mounting on a structure such as the exterior of a reusable launch vehicle. In one embodiment, the invention include a batting layer with a rigid screen embedded within it. A cover layer is secured over the batting, and a plurality of fasteners are held by the screen in a position where they extend out from the blanket to be mounted on the exterior of the space craft. The blanket can include two layers of batting with the screen disposed therebetween. The structure would have corresponding mating fasteners on its exterior to which those extending out from the blanket cover would be joined for a secure mount. The blanket can be formed of a first and a second batting layer with the screen positioned therebetween. In a preferred embodiment, a cover would be positioned over the batting layers, and the blanket would be quilted to hold the layers and cover in close proximity. In an embodiment suitable for launch vehicle use, the materials used for the batting, cover and quilting thread would be suitable ceramic fiber materials capable of withstanding reentry heating. The screen can be fabricated of titanium, stainless steel, or other material capable of withstanding reentry temperatures. The fasteners could be any of a variety of commercially available fasteners.

    摘要翻译: 本发明提供了一种适于可拆卸地安装在诸如可重复使用的运载火箭的外部的结构上的隔热毯。 在一个实施例中,本发明包括具有嵌入其内的刚性屏幕的击球层。 覆盖层被固定在棉条上,并且多个紧固件被屏幕保持在它们从毯子延伸出来以安装在太空船的外部上的位置。 毯子可以包括两层打击,其间设置有屏幕。 该结构将在其外部具有对应的配合紧固件,从毯子盖延伸出的那些紧固件将被连接以用于安全的安装。 毯子可以由屏幕定位在其间的第一和第二棉絮层形成。 在优选实施例中,覆盖物将被定位在击球层之上,并且毯子将被绗缝以保持层和覆盖物紧邻。 在适用于运载火箭使用的实施例中,用于殴打,覆盖和绗缝螺纹的材料将是能够承受再入式加热的合适的陶瓷纤维材料。 屏幕可以由钛,不锈钢或能够承受再入温度的其他材料制成。 紧固件可以是各种市售紧固件中的任何一种。

    Slidable high-temperature seal
    8.
    发明授权
    Slidable high-temperature seal 失效
    可滑动高温密封

    公开(公告)号:US4895378A

    公开(公告)日:1990-01-23

    申请号:US207337

    申请日:1988-06-15

    IPC分类号: B64C1/40 F02C7/042 F02K1/80

    摘要: A seal for preventing extremely hot gases from passing between a movable engine ramp and an engine splitter wall in a hypersonic aircraft. The seal moves with the engine ramp, in a direction parallel to the surface of the splitter wall. The seal includes a first flange which makes sliding contact with the outer engine ramp surface and is attached to a flexible sealing portion that fills the gap between the ramp and wall. The sealing portion maintains sliding contact with the wall as the gap changes dimension due to variations in the ramp's temperature. The attachment region can be a concave surface to radiate the seal's heat. In a second embodiment, the seal includes a second flange through which the seal is attached to the cooler side of the engine ramp.

    摘要翻译: 用于防止极高热气体在超音速飞行器中的可动发动机斜坡和发动机分流器壁之间通过的密封件。 密封件沿着平行于分流壁表面的方向与发动机斜坡一起移动。 该密封件包括与外部发动机斜坡表面滑动接触并附接到填充斜坡和壁之间的间隙的柔性密封部分的第一凸缘。 密封部分由于斜坡温度的变化而随着间隙改变尺寸而保持与壁的滑动接触。 附接区域可以是凹面以辐射密封件的热量。 在第二实施例中,密封件包括第二凸缘,密封件通过第二凸缘连接到发动机斜坡的冷却器侧。

    Efficient, environmentally acceptable method for waterproofing
insulation material

    公开(公告)号:US6086664A

    公开(公告)日:2000-07-11

    申请号:US76785

    申请日:1998-05-12

    IPC分类号: C09D183/04 C09D4/00 B32B2/04

    摘要: A process of waterproofing alumina-rich or silica-rich fibrous thermal insulation material, the process including the steps of:(a) providing an alumina-rich or a silica-rich fibrous material;(b) providing a waterproofing solution including:(1) a carrier solvent selected from the group consisting of aliphatic alcohols having from 1C to 6C, water, and mixtures thereof; and(2) an alkoxysilane defined by the formula R.sub.4-x -Si-(O-R').sub.x where x is 1-3 and R is selected from the group consisting of alkyl groups having from 1C to 10C, hydrogen, or fluorocarbon groups having from 1F to 15F; and where O-R' is an alkoxy group having from 1C to 5C, or a mixture of alkoxysilanes defined by the above formula R.sub.4-x -Si-(O-R').sub.x ; and optionally(3) modifiers including acids, such as acetic acid or nitric acid, or bases, such as ammonium hydroxide, RNH.sub.2, R.sub.2 NH, or R.sub.3 N, or MOH, where R is selected from the group consisting of alkyl groups having from 1C to 10C or hydrogen, and where M=Na, Li, or K;(c) contacting the fibrous material with the waterproofing solution for a sufficient amount of time to waterproof the fibrous material; and(d) curing the coated fibrous material to render it sufficiently waterproof.A chemical solution for waterproofing alumina-rich or silica-rich fibrous thermal insulation materials, the solution including:(a) a carrier solvent selected from the group consisting of aliphatic alcohols having from 1C to 6C, water, and mixtures thereof; and(b) an alkoxysilane defined by the formula R.sub.4-x -Si-(O-R').sub.x where x is 1-3 and R is selected from the group consisting of alkyl groups having from 1C to 10C, hydrogen, or fluorocarbon groups having from 1F to 15F; and where O-R' is an alkoxy group having from 1C to 5C, or a mixture of alkoxysilanes defined by the above formula R.sub.4-x -Si-(O-R').sub.x ; and optionally(c) modifiers including acids, such as acetic acid or nitric acid, or bases, such as ammonium hydroxide, RNH.sub.2, R.sub.2 NH, or R.sub.3 N, or MOH, where R is selected from the group consisting of alkyl groups having from 1C to 10C or hydrogen, and where M=Na, Li, or K.