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16 条记录 (耗时 0.032 秒)

    Multistage pump
    3.
    发明授权
    Multistage pump 有权
    多级泵

    公开(公告)号：US07648337B2

    公开(公告)日：2010-01-19

    申请号：US10501885

    申请日：2003-01-21

    申请人： Sou Kuroiwa ,  Kenichi Kajiwara ,  Shoji Ito ,  Kikuichi Mori ,  Aki Ishikawa ,  Tetsutaro Fujiwara

    发明人： Sou Kuroiwa ,  Kenichi Kajiwara ,  Shoji Ito ,  Kikuichi Mori ,  Aki Ishikawa ,  Tetsutaro Fujiwara

    IPC分类号： F01D25/24

    CPC分类号： F04D29/086 ,  F04D1/063 ,  F04D1/066 ,  F04D29/4266

    摘要： A multistage pump according to the present invention has a plurality of intermediate casings (2) formed by press-forming a steel plate. The intermediate casing has a cylindrical side portion (21), a stage flat portion (23) with which an axial end face of an adjacent intermediate casing is held in contact, a stage side portion (24) extending axially from the stage flat portion, and a bottom portion (25) extending radially inward from the stage side portion. A relief plate (30) having an outer circumferential end face which is held in contact with an inner surface of a cylindrical side portion of the adjacent intermediate casing is attached to the bottom portion of the intermediate casing. The relief plate, the stage side portion, the stage flat portion, and the inner surface of the cylindrical side portion of the adjacent intermediate casing form a space in which an O-ring (40) is fitted.

    摘要翻译： 根据本发明的多级泵具有通过冲压成形钢板形成的多个中间壳体（2）。 中间壳体具有圆柱形侧部（21），相邻中间壳体的轴向端面保持接触的平台部（23），从平台部分轴向延伸的台侧部分（24） 和从舞台侧部分径向向内延伸的底部（25）。 具有与相邻中间壳体的圆筒形侧部的内表面保持接触的外周端面的安全板（30）安装在中间壳体的底部。 凸版，台侧部分，平台部分和相邻中间壳体的圆柱形侧部分的内表面形成安装有O形环（40）的空间。

    Sheet-metal centrifugal pump casing
    4.
    发明授权
    Sheet-metal centrifugal pump casing 失效
    薄板离心泵

    公开(公告)号：US5112190A

    公开(公告)日：1992-05-12

    申请号：US552027

    申请日：1990-07-13

    申请人： Kenichi Kajiwara ,  Kikuichi Mori ,  Hideo Ikeda ,  Shinichiro Arakawa

    发明人： Kenichi Kajiwara ,  Kikuichi Mori ,  Hideo Ikeda ,  Shinichiro Arakawa

    IPC分类号： F04D29/42

    CPC分类号： F04D29/4266

    摘要： A sheet-metal centrifugal pump casing comprising a casing shell having a suction port and being formed of a steel plate by means of deep drawing using a press, and having a suction flange firmly attached to the suction port of the casing shell is disclosed. The centrifugal pump casing further comprises a partition body firmly attached to the inner surface of the casing shell for partitioning a space within the casing shell into a suction chamber and a pressure chamber, and a diffuser which is integrally extended from the suction side end portion of the partition body and which tapers off toward peripheral edge of said suction port so that an axial gap is formed between the end edge of the diffuser and the peripheral edge of said suction port.Since the axial gap is formed between the end edge of the diffuser and the peripheral edge of the suction port, even in the case of the suction flange is acted upon by an external force such as by piping, a deformation does not affect the partition body, thus, problems such as contact between the partition body and the impeller may be completely avoided.

    Centrifugal Pump and Method of Manufacturing the Same
    5.
    发明申请
    Centrifugal Pump and Method of Manufacturing the Same 有权
    离心泵及其制造方法

    公开(公告)号：US20070224040A1

    公开(公告)日：2007-09-27

    申请号：US11587359

    申请日：2004-11-12

    申请人： Junya Kawabata ,  Kikuichi Mori ,  Hiroyuki Kato

    发明人： Junya Kawabata ,  Kikuichi Mori ,  Hiroyuki Kato

    IPC分类号： F04D29/44

    CPC分类号： F04D29/2222 ,  F04D29/4266 ,  Y10T29/49236 ,  Y10T29/49243

    摘要： The present invention relates to a centrifugal pump whose components such as an impeller and a casing are manufactured from a sheet metal and a method of manufacturing such a centrifugal pump. The centrifugal pump according to the present invention comprises a diffuser section (11) for decreasing a velocity of the fluid discharged from an impeller, a return vane (14) for leading the fluid which has passed through the diffuser section (11) to a discharge side, a main plate (12) to which the diffuser section (11) and the return vane (14) are fixed, and a structural member (13) for smoothening a step (17) formed in a passage extending from the diffuser section (11) to the return vane (14).

    摘要翻译： 离心泵技术领域本发明涉及一种离心泵，其中叶片和壳体等部件由钣金制造，以及制造这种离心泵的方法。 根据本发明的离心泵包括用于降低从叶轮排出的流体的速度的扩散器部分（11），用于将已经通过扩散器部分（11）的流体引导到排出口的返回叶片（14） 固定有扩散器部分（11）和返回叶片（14）的主板（12）和用于使形成在从扩散器部分延伸的通道中形成的台阶（17）的结构件（13） 11）到返回叶片（14）。

    Sheet metal interstage casing for a pump
    6.
    发明授权
    Sheet metal interstage casing for a pump 失效
    用于泵的板材金属外壳

    公开(公告)号：US5234317A

    公开(公告)日：1993-08-10

    申请号：US811067

    申请日：1991-12-20

    申请人： Ken-ichi Kajiwara ,  Sou Kuroiwa ,  Kikuichi Mori ,  Hideo Ikeda

    发明人： Ken-ichi Kajiwara ,  Sou Kuroiwa ,  Kikuichi Mori ,  Hideo Ikeda

    IPC分类号： F04D29/42 ,  F04D1/06 ,  F04D29/44 ,  F04D29/62

    CPC分类号： F04D29/4266 ,  F04D1/063

    摘要： A multistage centrifugal pump has a plurality of series-connected interstage casings of pressed sheet steel housing respective impellers. Each of the interstage casings includes a central cylindrical side wall, a casing end wall, a first cylindrical wall integrally extending from an end of the central cylindrical side wall and joined to the casing end wall, the first cylindrical wall serving as a male member of a spigot joint, and a second cylindrical wall integrally extending from an opposite end of the central cylindrical side wall and having a flange defining an end opening therein, the second cylindrical wall serving as a female member of a spigot joint. The central cylindrical side wall has an outside diameter larger than outside diameters of the first cylindrical wall and the flange. The interstage casing is formed by drawing and bulging, and is not machined to achieve the desired dimensional accuracy. Therefore, the interstage casing is free from deformations and dimensional errors which would otherwise tend to occur under forces that would be developed if the blank were fastened for machining, and stresses and heat that would be developed if the blank were machined.

    Pump casing
    7.
    发明授权
    Pump casing 失效
    泵壳

    公开(公告)号：US5040947A

    公开(公告)日：1991-08-20

    申请号：US466843

    申请日：1990-01-18

    申请人： Kenichi Kajiwara ,  Kikuichi Mori ,  Hideo Ikeda ,  Shinichiro Arakawa

    发明人： Kenichi Kajiwara ,  Kikuichi Mori ,  Hideo Ikeda ,  Shinichiro Arakawa

    IPC分类号： F04D29/42 ,  F04D29/44

    CPC分类号： F04D29/4266 ,  F04D29/445

    摘要： A pump casing manufactured by press forming of steel plate and including a volute casing encircling a pump impeller so as to form a fluid path around the pump impeller is disclosed. The cross-sectional area of the fluid path is gradually increased towards a discharge port of the pump casing. The pump casing includes a casing body which is formed at first by press forming a metal plate into a cylindrical cup shape having an opening portion at one side thereof and a closed bottom portion at the other side of the same, and then by press forming the cylindrical cup shaped casing body so as to have a volute portion radially outwardly expanded from a cylindrical surface of the casing body at an axially intermediate portion thereof which radially opposite to the pump impeller, a casing flange outwardly extending from the opening portion and an aperture serving as a suction port at the bottom portion.Since no separate volute member is provided within the pump casing to form the volute portion, the outer diameter of the pump casing can be made small and also the shape of the fluid path in the volute casing can be made smooth.

    Fastener and fastening method
    9.
    发明授权
    Fastener and fastening method 失效
    紧固件和紧固方法

    公开(公告)号：US06872051B2

    公开(公告)日：2005-03-29

    申请号：US10451146

    申请日：2001-12-28

    申请人： Yoshiaki Miyazaki ,  Hiroshi Uchida ,  Kenichi Kajiwara ,  Kikuichi Mori ,  Chitoshi Morita

    发明人： Yoshiaki Miyazaki ,  Hiroshi Uchida ,  Kenichi Kajiwara ,  Kikuichi Mori ,  Chitoshi Morita

    IPC分类号： F16B37/04 ,  F16B37/06 ,  F04D29/42

    CPC分类号： F16B37/065

    摘要： The present invention relates to a fastener and a fastening method for joining together two or more members including at least one complicate-shaped plate. A fastener comprises a cap nut (20) having a main body and a thin-walled portion (24) projecting from the main body, and a bolt (30) screwed into the cap nut (20). The cap nut (20) is fixed to a plate-like member (12) by inserting the thin-walled portion (24) into a through-hole (12a) of the plate-like member (12) and caulking the thin-walled portion (24).

    摘要翻译： 本发明涉及一种用于将包括至少一个复杂形状的板的两个或多个构件接合在一起的紧固件和紧固方法。 紧固件包括具有主体的盖螺母（20）和从主体突出的薄壁部分（24）以及拧入盖螺母（20）中的螺栓（30）。 通过将薄壁部分（24）插入板状构件（12）的通孔（12a）中并将薄壁部件（20）铆接在一起，将盖螺母（20）固定到板状构件（12） 部分（24）。