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136 条记录 (耗时 0.015 秒)

    Heat pipe and method and apparatus for fabricating same
    73.
    发明授权
    Heat pipe and method and apparatus for fabricating same 失效
    热管及其制造方法及装置

    公开(公告)号：US3865184A

    公开(公告)日：1975-02-11

    申请号：US35079973

    申请日：1973-04-13

    申请人： Q DOT CORP

    发明人： GROVER GEORGE M

    IPC分类号： B21C37/20 ,  B21D31/00 ,  F28D15/04 ,  F28D15/00

    CPC分类号： B21D31/00 ,  B21C37/205 ,  B21C37/207 ,  F28D15/04 ,  Y02P70/139

    摘要： A unit for recovering thermal energy which utilizes a plurality of unique heat pipes, and the method and apparatus for fabricating the heat pipes is disclosed. The heat pipes are disposed horizontally and are filled with a volume of working fluid sufficient to cause the liquid phase to travel in either direction by gravity. Circumferential capillary grooves in the side walls of the heat pipes transport the liquid phase vertically above the liquid level to increase the area of the liquid-vapor interface. Additionally, the solid metal strips which form the grooves provide a low impedance thermal path from the walls of the heat pipe to the liquid-vapor interface where evaporation and condensation occur. These two factors significantly increase the efficiency of the system. A divider plate having an X-shaped cross section separates the liquid phase from the high velocity vapor phase to prevent slugging under high energy transfer conditions. The divider plate is operative when the unit is disposed in either of two horizontal positions. The method and apparatus provides a means for fabricating a spiraled capillary groove by cutting the metal from the wall of the tube and raising and folding the cut metal over to provide a groove having a narrow opening for a maximum capillary action. The cutting tool has a curved cutting edge formed by the intersection of a planar surface and a cylindrical surface. Apparatus for driving the cutting tool is also described.

    摘要翻译： 公开了一种用于回收利用多个独特热管的热能的单元，以及用于制造热管的方法和装置。 热管水平放置并填充足以使液相沿重力在任一方向上行进的一定体积的工作流体。 热管侧壁中的周向毛细管槽将液相垂直地输送到液面以上以增加液 - 气界面的面积。 此外，形成凹槽的固体金属条提供从热管的壁到发生蒸发和冷凝的液体 - 蒸汽界面的低阻抗热路径。 这两个因素显着提高了系统的效率。 具有X形横截面的分隔板将液相与高速气相分离，以防止在高能量转移条件下的堵塞。 当单元设置在两个水平位置中时，分隔板可操作。

    FORMING AND MANUFACTURING METHOD OF BICYCLE SHOCK-ABSORBING FRONT FORK CROWN
    75.
    发明公开
    FORMING AND MANUFACTURING METHOD OF BICYCLE SHOCK-ABSORBING FRONT FORK CROWN 审中-公开

    公开(公告)号：US20240207920A1

    公开(公告)日：2024-06-27

    申请号：US18087594

    申请日：2022-12-22

    申请人： ALEX GLOBAL TECHNOLOGY, INC.

    发明人： WEI-CHIN CHEN

    IPC分类号： B21D53/86 ,  B21D22/02 ,  B21D22/26 ,  B21D31/00

    CPC分类号： B21D53/86 ,  B21D22/02 ,  B21D22/26 ,  B21D31/00 ,  B62K21/04

    摘要： The present invention relates to a forming and manufacturing method of a bicycle shock-absorbing front fork crown. It mainly includes a stamping step that processes and forms an aluminum ingot base material into a crown prototype, wherein the crown prototype includes two shoulders and a solid convex seat, a deep drawing forming step that the solid convex seat is extended and processed to form a front fork tube, an appearance processing step that the front fork crown is formed through processing and forming the two side shoulders and the front fork tube surface, and finally, a drilling process is carried out on the two side shoulders. In this way, the front fork crown with the front fork tube can be formed integrally with an aluminum ingot through a series of processing processes, so that the front fork crown can provide a high-strength anti-vibration function.