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    Polymer composite squirrel cage rotor with high magnetic permeability filler for induction motor and method of making it
    2.
    发明授权
    Polymer composite squirrel cage rotor with high magnetic permeability filler for induction motor and method of making it 失效
    用于感应电动机的高磁导率填料的高分子复合鼠笼式转子及其制造方法

    公开(公告)号：US06710498B1

    公开(公告)日：2004-03-23

    申请号：US09710665

    申请日：2000-11-09

    申请人： Dai Gil Lee ,  Seung Hwan Chang

    发明人： Dai Gil Lee ,  Seung Hwan Chang

    IPC分类号： H02K132

    CPC分类号： H02K15/0012 ,  H02K17/165

    摘要： Disclosed herein is, a composite squirrel cage rotor having a polymer resin part containing powder of high magnetic permeability and method for fabricating it. The composite squirrel cage rotor includes a rotating shaft, an inner core, a polymer resin part that fills the cavity of the squirrel cage conductor and contains powder of high magnetic permeability. A squirrel cage conductor is positioned outer to portion of the polymer resin part, is formed of, material having high electric conductivity, and provided with a plurality of axial slots.

    摘要翻译： 这里公开了一种具有含有高磁导率粉末的聚合物树脂部分的复合鼠笼式转子及其制造方法。 复合鼠笼式转子包括旋转轴，内芯，聚合物树脂部分，其填充鼠笼式导体的空腔并且包含高磁导率的粉末。 鼠笼式导体位于聚合物树脂部分的外部的外部，由具有高导电性的材料形成，并且设置有多个轴向槽。

    Coreless AC induction motor
    3.
    发明授权
    Coreless AC induction motor 失效
    无芯交流感应电动机

    公开(公告)号：US06384507B1

    公开(公告)日：2002-05-07

    申请号：US09710806

    申请日：2000-11-09

    申请人： Dai Gil Lee ,  Seung Hwan Chang

    发明人： Dai Gil Lee ,  Seung Hwan Chang

    IPC分类号： H02K122

    CPC分类号： H02K17/16 ,  H02K7/088 ,  H02K9/20 ,  H02K17/165

    摘要： Disclosed herein is a coreless AC Induction motor. The motor comprises a cup type coreless rotor. A rotating shaft is combined with the cup type coreless rotor. An induction rod is inserted into the cup type coreless rotor to guide a magnetic flux from the stator effectively. A stator is positioned around the coreless rotor. The cup type coreless rotor comprises a squirrel cage-shaped conduction cylinder and composite material or polymer resin. The squirrel cage-shaped conduction cylinder is made of material having high electric conductivity, such as aluminum or copper, and has plurality of slots along the axis of the squirrel cage-shaped conduction cylinder. The composite material or polymer resin fills the slots of the squirrel cage-shaped conduction cylinder to make up for the low stiffness of the squirrel cage-shaped conduction cylinder.

    摘要翻译： 本文公开了一种无芯式AC感应电动机。 电动机包括杯型无芯转子。 旋转轴与杯型无芯转子组合。 感应棒被插入到杯型无芯转子中以有效地引导来自定子的磁通量。 定子围绕无芯转子定位。 杯型无芯转子包括鼠笼形导电筒和复合材料或聚合物树脂。 鼠笼状导向筒由铝或铜等导电性高的材料制成，并且沿着鼠笼状导向圆筒的轴线具有多个狭槽。 复合材料或聚合物树脂填充鼠笼形导向圆筒的槽，以弥补鼠笼形传导滚筒的低刚度。

    Composite separator for polymer electrolyte membrane fuel cell and method for manufacturing the same
    4.
    发明授权
    Composite separator for polymer electrolyte membrane fuel cell and method for manufacturing the same 有权
    聚合物电解质膜燃料电池用复合隔膜及其制造方法

    公开(公告)号：US08956767B2

    公开(公告)日：2015-02-17

    申请号：US12823855

    申请日：2010-06-25

    申请人： Dai Gil Lee ,  Ha Na Yu ,  Jun Woo Lim ,  Sae Hoon Kim ,  Jung Do Suh ,  Byung Ki Ahn

    发明人： Dai Gil Lee ,  Ha Na Yu ,  Jun Woo Lim ,  Sae Hoon Kim ,  Jung Do Suh ,  Byung Ki Ahn

    IPC分类号： H01M2/16 ,  H01M8/02 ,  B32B38/00 ,  B32B37/00 ,  H01M8/10

    CPC分类号： H01M8/0228 ,  B32B37/0053 ,  B32B38/0004 ,  B32B2305/076 ,  B32B2309/04 ,  B32B2309/105 ,  B32B2309/12 ,  B32B2313/04 ,  B32B2457/18 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0226 ,  H01M8/0234 ,  H01M8/0239 ,  H01M8/0245 ,  H01M2008/1095 ,  Y02E60/50 ,  Y02P70/56 ,  Y10T156/108

    摘要： The present invention provides a composite separator for a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same, in which a graphite foil prepared by compressing expanded graphite is stacked on a carbon fiber-reinforced composite prepreg or a mixed solution prepared by mixing graphite flake and powder with a resin solvent is applied to the cured composite prepreg such that a graphite layer is integrally molded on the outermost end of the separator.For this purpose, the present invention provides a method for manufacturing a composite separator for a polymer electrolyte membrane fuel cell, the method including: preparing a prepreg as a continuous carbon fiber-reinforced composite and a graphite foil; allowing the cut prepreg and graphite foil to pass through a stacking/compression roller to be compressed; allowing the prepreg in which the graphite foil is integrally stacked to be heated and pressed by a hot press such that hydrogen, air, and coolant flow fields are formed or to pass through a hot roller to be formed into a separator; removing unnecessary portions from the heated and pressed separator using a trim cutter; and post-curing the thus formed separator, wherein the graphite foil may be stacked on the prepreg as the continuous carbon fiber-reinforced composite such that a graphite layer is integrally formed with the prepreg.

    摘要翻译： 本发明提供了一种用于聚合物电解质膜燃料电池（PEMFC）的复合隔板及其制造方法，其中通过压缩膨胀石墨制备的石墨箔堆叠在碳纤维增强复合材料预浸料或制备的混合溶液 通过将石墨片和粉末与树脂溶剂混合施加到固化的复合预浸料上，使得石墨层一体地模制在隔板的最外端。 为此，本发明提供一种高分子电解质膜燃料电池用复合隔膜的制造方法，其特征在于，包括：将预浸料作为连续碳纤维增强复合体和石墨箔制备; 允许切片预浸料和石墨箔通过堆叠/压缩辊进行压缩; 允许通过热压机将石墨箔整体堆叠的预浸料加热和压制，使得形成氢气，空气和冷却剂流场，或者通过待形成的隔热膜的热辊; 使用修剪刀从加热和压制的分离器去除不需要的部分; 并对由此形成的隔板进行后固化，其中石墨箔可以作为连续碳纤维增强复合材料堆叠在预浸料上，使得石墨层与预浸料一体形成。

    Method of repairing or reinforcing worn-out underground burried drainpipes by resin transfer molding process using both flexible tubes and bagging films
    6.
    发明授权
    Method of repairing or reinforcing worn-out underground burried drainpipes by resin transfer molding process using both flexible tubes and bagging films 有权

    公开(公告)号：US06382876B1

    公开(公告)日：2002-05-07

    申请号：US09761825

    申请日：2001-01-18

    申请人： Dai Gil Lee ,  Jae Wook Kwon ,  Woo Seok Chin ,  Ae Kwon Yoo

    发明人： Dai Gil Lee ,  Jae Wook Kwon ,  Woo Seok Chin ,  Ae Kwon Yoo

    IPC分类号： F16L100

    摘要： A method of repairing or reinforcing worn-out underground buried drainpipes by a resin transfer molding process using both flexible tubes and bagging films is disclosed. In the method of this invention, a reinforcement is primarily inserted into a desired position within a target worn-out drainpipe buried underground. The reinforcement consists of a fiber preform internally having a flexible tube, such as a silicon tube, axially extending along the central axis of the preform and wrapped with an adhesive-coated flexible film as a bagging film to provide protection from sewage or underground water. The flexible tube is, thereafter, expanded to bring the fiber preform into close contact with the interior surface of the target drainpipe. The opposite ends of the reinforcement are sealed with two lids. Thereafter, thermosetting resin is transferred into the fiber preform, thus allowing the fiber preform to be impregnated with the thermosetting resin. The impregnated resin is, thereafter, cured to shape the fiber preform as desired, thus repairing and reinforcing the target drainpipe.

    Bearing assembly and method for manufacturing the same
    7.
    发明授权
    Bearing assembly and method for manufacturing the same 有权
    轴承组装及其制造方法

    公开(公告)号：US07473035B2

    公开(公告)日：2009-01-06

    申请号：US11679038

    申请日：2007-02-26

    申请人： Dai Gil Lee ,  Dong Chang Park ,  Seong Min Lee ,  Byung Chul Kim ,  Hak Sung Kim ,  Sung Su Kim ,  Jong Woon Kim

    发明人： Dai Gil Lee ,  Dong Chang Park ,  Seong Min Lee ,  Byung Chul Kim ,  Hak Sung Kim ,  Sung Su Kim ,  Jong Woon Kim

    IPC分类号： F16C25/04

    CPC分类号： F16C9/04 ,  F16C11/0633 ,  F16C33/201 ,  F16J1/22 ,  Y10T403/32631

    摘要： A bearing assembly includes a spherical journal and a hemispherical bearing that is made of a fiber reinforced composite and has a bearing surface for establishing a spherical pair with the spherical journal. The fiber reinforced composite can be constructed by arranging a uni-directional prepreg, woven fiber prepregs and staple-fiber prepregs in a variety of configurations, and thermoplastic resin particles or self-lubrication particles are uniformly provided on the bearing surface. It is possible to alleviate stress concentration generated on the bearing surface by forming a plurality of air channels capable of imparting directivity on an outer surface of the hemispherical bearing.

    摘要翻译： 轴承组件包括球形轴颈和由纤维增强复合材料制成并具有用于与球形轴颈建立球形对的支承表面的半球形轴承。 纤维增强复合材料可以通过以各种构造布置单向预浸料坯料，编织纤维预浸料坯料和短纤维预浸料坯而构成，并且热塑性树脂颗粒或自润滑颗粒均匀地设置在轴承表面上。 通过形成能够赋予半球形轴承的外表面方向性的多个空气通道，可以减轻在轴承表面上产生的应力集中。