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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。
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公开(公告)号：US20050147505A1
公开(公告)日：2005-07-07
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
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。
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公开(公告)号：US20080019831A1
公开(公告)日：2008-01-24
申请号：US11631483
申请日：2004-11-12
申请人： Kenichi Kajiwara , Junya Kawabata , Sou Kuroiwa , Tetsutaro Fujiwara , Shoji Ito
发明人： Kenichi Kajiwara , Junya Kawabata , Sou Kuroiwa , Tetsutaro Fujiwara , Shoji Ito
IPC分类号： F01D25/24
CPC分类号： F04D29/4286 , F04D1/066 , F04D7/06 , F04D29/026 , F05D2230/234 , F05D2260/95 , F05D2300/171
摘要： A centrifugal pump includes at least one impeller (11) fixed to a main shaft (10) and at least one casing which houses the impeller and is formed through press working of sheet metal such as a steel plate. The centrifugal pump further includes a casing cover configured to seal an open end of the casing hermetically, and a shaft seal device (12) provided at a portion where the main shaft passes through the casing cover. The casing cover has a thick member (6) made of castings, and a thin corrosion-resistant lining member (40) which is tightly fixed to the thick member.
摘要翻译： 离心泵包括固定到主轴（10）的至少一个叶轮（11）和容纳叶轮的至少一个壳体，并且通过诸如钢板的金属板的冲压加工形成。 离心泵还包括壳体盖，其构造成密封壳体的开口端，以及设置在主轴穿过壳体盖的部分处的轴密封装置（12）。 壳体盖具有由铸件制成的厚构件（6），以及紧密地固定到厚构件的薄的耐腐蚀衬里构件（40）。
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公开(公告)号：US20050002789A1
公开(公告)日：2005-01-06
申请号：US10501886
申请日：2003-01-21
申请人： Kenichi Kajiwara , Sou Kuroiwa , Kikuichi Mori , Koichi Kunimasa
发明人： Kenichi Kajiwara , Sou Kuroiwa , Kikuichi Mori , Koichi Kunimasa
CPC分类号： F04D29/20 , F04D1/06 , F04D29/026 , F04D29/2227 , F05D2230/54 , F05D2300/171
摘要： An impeller (1) according to the present invention has a disk-like main plate (10), a blade (20) joined to the main plate, and a side plate (30) having a suction port. A boss hole (12) is formed in a central portion of the main plate for attaching a boss which engages with a pump shaft to the boss hole. A step portion (14) is formed around the boss hole, which is formed in the main plate, by drawing.
摘要翻译： 根据本发明的叶轮（1）具有盘状主板（10），与主板接合的叶片（20）和具有吸入口的侧板（30）。 在主板的中央部形成有凸台孔（12），用于将与泵轴接合的凸台连接到凸台孔。 通过拉伸在形成在主板中的凸台孔周围形成台阶部（14）。
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公开(公告)号：US07247001B2
公开(公告)日：2007-07-24
申请号：US10501886
申请日：2003-01-21
申请人： Kenichi Kajiwara , Sou Kuroiwa , Kikuichi Mori , Koichi Kunimasa
发明人： Kenichi Kajiwara , Sou Kuroiwa , Kikuichi Mori , Koichi Kunimasa
CPC分类号： F04D29/20 , F04D1/06 , F04D29/026 , F04D29/2227 , F05D2230/54 , F05D2300/171
摘要： An impeller (1) according to the present invention has a disk-like main plate (10), a blade (20) joined to the main plate, and a side plate (30) having a suction port. A boss hole (12) is formed in a central portion of the main plate for attaching a boss which engages with a pump shaft to the boss hole. A step portion (14) is formed around the boss hole, which is formed in the main plate, by drawing.
摘要翻译： 根据本发明的叶轮（1）具有盘状主板（10），与主板接合的叶片（20）和具有吸入口的侧板（30）。 在主板的中央部形成有凸台孔（12），用于将与泵轴接合的凸台连接到凸台孔。 通过拉伸在形成在主板中的凸台孔周围形成台阶部（14）。
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公开(公告)号：US5040947A
公开(公告)日：1991-08-20
申请号：US466843
申请日：1990-01-18
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.
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公开(公告)号：US5112190A
公开(公告)日：1992-05-12
申请号：US552027
申请日：1990-07-13
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.
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公开(公告)号：US06872051B2
公开(公告)日：2005-03-29
申请号：US10451146
申请日：2001-12-28
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）。
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公开(公告)号：US4986736A
公开(公告)日：1991-01-22
申请号：US466845
申请日：1990-01-18
申请人： Kenichi Kajiwara , Kikuichi Mori , Hideo Ikeda
发明人： Kenichi Kajiwara , Kikuichi Mori , Hideo Ikeda
IPC分类号： F04D29/22
CPC分类号： F04D29/2227 , F05D2230/232 , F05D2300/171 , Y10T403/4682 , Y10T403/7098
摘要： A pump impeller manufactured by press forming of steel plate and comprising a boss formed with a central bore for connecting the boss to a main shaft of the pump through key and key way engagement, and a main shroud fixed to the boss is disclosed. The impeller is characterized in that the boss is formed with a polygonal portion on the periphery of the boss and the main shroud is formed at central portion thereof with a polygonal recess fitting to the polygonal portion of the boss. A retainer plate is mounted on the boss at an end portion thereof opposite to an end portion from which the main shroud is fitted to the boss and is connected by welding to the main shroud. Thereby, since the power is transmitted from the boss to the main shroud through polygonal surfaces, no substantial stress concentration occurs at the power transmitting area.
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公开(公告)号：US08439142B2
公开(公告)日：2013-05-14
申请号：US11951220
申请日：2007-12-05
CPC分类号： F01N3/34 , B62J17/02 , F01N3/10 , F01N13/009 , F01N2230/04 , F01N2340/04 , F01N2590/04 , Y02A50/2322 , Y02T10/20
摘要： Air flowing through a secondary air inducting conduit of a motorcycle is effectively cooled to enhance combustion efficiency of exhaust gas in a catalyzer. A part of the secondary air inducting conduit is exposed to a space behind a front wheel and in front of an engine, and thus acts as a secondary air cooling conduit section for cooling down secondary air flowing through the secondary air inducting conduit.
摘要翻译： 有效地冷却流经摩托车的二次空气导入管道的空气，以提高催化剂中废气的燃烧效率。 二次空气感应导管的一部分暴露在前轮后面和发动机前方的空间中，从而用作用于冷却流过二次空气导入管的二次空气的二次空气冷却导管段。
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