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    ROTARY VANE ENGINES WITH MOVABLE ROTORS, AND ENGINE SYSTEMS COMPRISING SAME
    1.
    发明申请
    ROTARY VANE ENGINES WITH MOVABLE ROTORS, AND ENGINE SYSTEMS COMPRISING SAME 有权
    具有可移动转子的旋转叶片发动机，以及包含该转子的发动机系统

    公开(公告)号：US20120048230A1

    公开(公告)日：2012-03-01

    申请号：US12342993

    申请日：2008-12-23

    申请人： David S. Darrow

    发明人： David S. Darrow

    IPC分类号： F02B53/04

    CPC分类号： F04C18/3441 ,  F01C1/3441 ,  F01C19/08 ,  F01C20/18 ,  F01C20/22 ,  F01C21/0809 ,  F04C27/001 ,  F04C28/22 ,  F04C28/28 ,  F04C2240/10 ,  F04C2270/18

    摘要： Embodiments of rotary vane engines include rotors that rotate about an axis of rotation. The rotors can be moved in directions substantially perpendicular to the axis of rotation to vary expansion and/or compression ratios of the rotary vane engines. The ability to vary the expansion and/or compression ratios can facilitate optimization of the performance of the rotary vane engines as operating conditions vary.

    摘要翻译： 旋转叶片发动机的实施例包括围绕旋转轴线旋转的转子。 转子可以在基本上垂直于旋转轴线的方向上移动，以改变旋转叶片发动机的膨胀和/或压缩比。 改变膨胀和/或压缩比的能力可以在操作条件变化时促进旋转叶片发动机性能的优化。

    Classifying cyclone
    3.
    发明授权
    Classifying cyclone 失效
    分类旋风

    公开(公告)号：US4743363A

    公开(公告)日：1988-05-10

    申请号：US911475

    申请日：1986-09-25

    申请人： David S. Darrow

    发明人： David S. Darrow

    IPC分类号： B04C5/103 ,  B04C5/22 ,  B04C7/00 ,  B04C9/00 ,  B07B4/02

    CPC分类号： B04C5/103 ,  B04C5/22 ,  B04C7/00 ,  B04C9/00

    摘要： A classifying cyclone efficient at removing very fine particles. In preferred embodiments, the cyclone employs an annular bevel ring positioned along the interior wall to redirect separated particles from the wall back into the path of classifying air. A control air deflector is placed in the path of the classifying airstream and adjusted vertically to provide adjustment of the annular orifice through which the classifying air passes. The air deflector is positioned at approximately the height of the bevel ring.

    摘要翻译： 分选旋风分离器有效去除非常细小的颗粒。 在优选实施例中，旋风分离器采用沿着内壁定位的环形斜角环，以将分离的颗粒从壁重新分离回到分级空气的路径中。 控制空气导流器被放置在分级气流的路径中并且垂直调节以提供分级空气通过的环形孔的调节。 空气导流板位于大约斜面环的高度处。

    Polyimide with reduced anhydride content
    6.
    发明授权
    Polyimide with reduced anhydride content 失效
    具有降低酸酐含量的聚酰亚胺

    公开(公告)号：US5175241A

    公开(公告)日：1992-12-29

    申请号：US458314

    申请日：1989-12-28

    申请人： David S. Darrow

    发明人： David S. Darrow

    IPC分类号： C08G73/10

    CPC分类号： C08G73/1082 ,  C08G73/1014

    摘要： Polyimide resins, which have reduced anhydride content when molded, are prepared by a novel reaction process that includes reacting an esterified aromatic tetracarboxylic acid or anhydride monomer with a primary aromatic diamine until substantially no free monomer remains to form a polyamide-acid (the molar ratio of esterified monomer to diamine ranging from 1:1 to 1:2); reacting the polyamide-acid with a low molecular weight end-capping agent to form an end-capped polyamide-acid; and heating the end-capped polyamide-acid to form the polyimide.

    摘要翻译： 通过新型的反应方法制备聚酰亚胺树脂，其中所述聚酰亚胺树脂通过新的反应方法制备，所述方法包括使酯化的芳族四羧酸或酸酐单体与伯芳族二胺反应，直到基本上不存在游离单体以形成聚酰胺酸（摩尔比 的酯化单体至二胺范围为1:1至1:2）; 使聚酰胺酸与低分子量封端剂反应形成封端的聚酰胺酸; 并加热封端的聚酰胺酸形成聚酰亚胺。