Heat exchanger
    1.
    发明授权
    Heat exchanger 失效
    热交换器

    公开(公告)号:US5307867A

    公开(公告)日:1994-05-03

    申请号:US926434

    申请日:1992-08-10

    IPC分类号: F28F13/12

    CPC分类号: F28F13/12

    摘要: A heat exchanger comprising an outer tube, one or more inner tubes disposed with interstice within said outer tube, and a spiral element extending longitudinally within said inner tube(s). The spiral element is made up of a plurality of unit elements connected together with a connection angle of 0.degree.. Each of the unit elements has a twist angle of 180.degree., with the direction of twist being reversed from one to a neighboring unit element. Channeling phenomenon is effectively avoided. Heat exchange medium with Rheynolds number Re>10.sup.4 is suitable.

    摘要翻译: 一种热交换器,其包括外管,在所述外管内设置有间隙的一个或多个内管,以及在所述内管内纵向延伸的螺旋元件。 螺旋元件由连接角度为0°的多个单元元件组成。 每个单元元件的扭转角为180°,扭转方向从一个相邻单元元件反向。 渠道现象得到有效的避免。 具有雷诺数Re> 104的热交换介质是合适的。

    Multipot type disk brake
    3.
    发明授权
    Multipot type disk brake 有权
    多轴式盘式制动器

    公开(公告)号:US6092631A

    公开(公告)日:2000-07-25

    申请号:US166091

    申请日:1998-10-05

    摘要: If cylinder bores formed in a caliper parallel to each other are communicated together through a pipe casted in the caliper, the pipe tends to come out of the caliper into a cylinder bore. A separate short pipe is provided to communicate the cylinder bores. The pipe has an engaging portion so as to extend in a diametric direction of the short pipe to prevent longitudinal shift of the short pipe. The engaging portions can be provided easily by forming a recess or a protrusion on the outer periphery of the pipe and casting the pipe in the caliper.

    摘要翻译: 如果以平行于彼此平行的卡钳形成的气缸孔通过浇铸在卡钳中的管道连通在一起,则管道倾向于从卡钳中流出到气缸孔中。 提供单独的短管以连通气缸孔。 该管具有沿短管的直径方向延伸的接合部,以防止短管的纵向移动。 可以通过在管的外周上形成凹部或突起并且将管子浇铸成卡尺来容易地设置接合部。

    Internal chill casting method for manufacturing a cast product containing a pipe therein
    4.
    发明授权
    Internal chill casting method for manufacturing a cast product containing a pipe therein 有权
    用于制造其中包含管道的铸造产品的内部冷却铸造方法

    公开(公告)号:US06739378B2

    公开(公告)日:2004-05-25

    申请号:US09756825

    申请日:2001-01-09

    IPC分类号: B22D1900

    CPC分类号: B22D19/0072 B22C9/06

    摘要: A controlling member (a controlling pin 10) is inserted through an insertion hole 7 of a mold 1 and projected into a cavity 6. After a pipe P as an insert member is arranged at a predetermined position in the cavity 6, the pipe P is held in the cavity 6 by inserting a tip of the controlling pin 10 into a hole h of the pipe P at the end p1, or by inserting the end p1 of the pipe P into a cave 21 of the controlling member. A molten aluminum alloy is then poured through a gate 5 into the cavity 6 under such the condition, to enclose the pipe P with the aluminum alloy. Dislocation of the pipe P caused by kinetic and thermal energies of the poured aluminum alloy is suppressed by the controlling pin 10 or block 20 at the end p1. Since the enclosed pipe P has its end p1 opened at a predetermined position, a cast product obtained in this way can be used as a brake caliper or the like having an inner hydraulic circuit.

    摘要翻译: 控制构件(控制销10)通过模具1的插入孔7插入并突出到空腔6中。在作为插入构件的管P布置在空腔6中的预定位置之后,管P是 通过将控制销10的尖端插入端部p1处的管P的孔h中,或者将管P的端部p1插入到控制构件的洞穴21中而保持在空腔6中。 然后在这种条件下,将熔融的铝合金通过浇口5浇注到空腔6中,以用铝合金包住管道P. 通过浇注铝合金的动能和热能引起的管道P的位移由端部p1处的控制销10或块20抑制。 由于封闭管P的端部p1在预定位置处开口,所以以这种方式获得的铸造产品可以用作具有内部液压回路的制动钳等。

    Manufacturing method of semiconductor IC device
    5.
    发明授权
    Manufacturing method of semiconductor IC device 失效
    半导体IC器件的制造方法

    公开(公告)号:US06806195B1

    公开(公告)日:2004-10-19

    申请号:US09019087

    申请日:1998-02-05

    IPC分类号: H01L2120

    摘要: To provide a manufacturing method of the semiconductor IC device having fine-structure connecting holes or trenches with high dimensional precision. There is the following step of the operation: a hook-shaped hard mask made of polysilicon film 18 and polysilicon film 20a is formed on the surface of silica film 17 for forming connecting holes 21 accommodating plugs that perform an electrical connection with the lower portion of the lower electrode of the capacitor in the COB-type memory cells, with the hook-shaped hard mask being used as an etching mask in selective etching so as to form connecting holes 21 on silica film 17 and silica film 15 below it.

    摘要翻译: 提供具有高精度的精细结构连接孔或沟槽的半导体IC器件的制造方法。 具有以下操作步骤:在二氧化硅膜17的表面上形成由多晶硅膜18和多晶硅膜20a制成的钩形硬掩模,用于形成连接孔21,该连接孔21容纳与下部的电连接的插塞 COB型存储单元中的电容器的下电极,在选择性蚀刻中使用钩状硬掩模作为蚀刻掩模,以在其上形成二氧化硅膜17和二氧化硅膜15上的连接孔21。