公开(公告)号：US06767179B2

公开(公告)日：2004-07-27

申请号：US10207013

申请日：2002-07-30

申请人： Katsuhiko Kusagaya ,  Yoshihiko Ito ,  Motoya Ito ,  Yukio Mori ,  Masatoshi Takagi ,  Koji Maruyama ,  Eiji Iwanari

发明人： Katsuhiko Kusagaya ,  Yoshihiko Ito ,  Motoya Ito ,  Yukio Mori ,  Masatoshi Takagi ,  Koji Maruyama ,  Eiji Iwanari

IPC分类号： F04D500

CPC分类号： F02M37/048 ,  F02M37/08 ,  F02M37/10 ,  F04D5/002 ,  F04D29/188

摘要： In a fuel pump having a high pump efficiency, an annular portion is formed on an outer periphery of an impeller to let one- and opposite-side blade grooves be independent of each other. Then, various improvements are made such as tilting front and rear wall surfaces of the blade grooves in a predetermined direction, forming one- and opposite-side blade grooves in a zigzag fashion, forming a guide surface in a communicating passage of a pump housing, and forming communicating holes in an impeller.

摘要翻译： 在泵效率高的燃料泵中，在叶轮的外周形成有环状部分，使得一侧刀片槽和相对侧刀槽互相独立。 然后，进行各种改进，例如沿预定方向倾斜叶片槽的前壁和后壁表面，以锯齿形形式形成单侧和相对侧叶槽，在泵壳的连通通道中形成引导表面， 并在叶轮中形成连通孔。

公开(公告)号：US06702546B2

公开(公告)日：2004-03-09

申请号：US10207012

申请日：2002-07-30

申请人： Masatoshi Takagi ,  Katsuhiko Kusagaya ,  Motoya Ito ,  Yukio Mori ,  Eiji Iwanari

发明人： Masatoshi Takagi ,  Katsuhiko Kusagaya ,  Motoya Ito ,  Yukio Mori ,  Eiji Iwanari

IPC分类号： F04D500

CPC分类号： F04D5/002 ,  F04D5/007 ,  F05B2250/503

摘要： A turbine fuel pump for smoothly flowing fuel in a fuel inlet passage, preventing a pressure loss at a start end of a pump flow passage to prevent generation of a local negative pressure, thereby increasing pump efficiency. The turbine fuel pump includes an impeller with blades and blade grooves, and a pump housing having first and second housings for rotatably storing the impeller. The first housing has a C-shaped side groove, a fuel inlet passage which bends at a start end of the side groove toward the center of the first housing, and an opening on an outer side surface. The second housing has a C-shaped side groove, and a fuel outlet opening communicating with a terminal end of the side groove.

摘要翻译： 一种用于在燃料入口通道中平稳地流动燃料的涡轮燃料泵，防止在泵流路的起始端处的压力损失以防止产生局部负压，从而提高泵效率。 涡轮燃料泵包括具有叶片和叶片槽的叶轮，以及具有用于可旋转地容纳叶轮的第一和第二壳体的泵壳体。 第一壳体具有C形侧槽，在侧槽的起始端朝向第一壳体的中心弯曲的燃料入口通道，以及在外侧面上的开口。 第二壳体具有C形侧槽和与侧槽的终端连通的燃料出口。

公开(公告)号：US06481991B2

公开(公告)日：2002-11-19

申请号：US09811491

申请日：2001-03-20

申请人： Masatoshi Takagi ,  Motoya Ito ,  Katsuhiko Kusagaya

发明人： Masatoshi Takagi ,  Motoya Ito ,  Katsuhiko Kusagaya

IPC分类号： F04C200

CPC分类号： F04C11/001 ,  F04C2/102 ,  F04C11/008 ,  F04C15/0049

摘要： Two inner gears are overlapped with each other through a partition wall and are eccentrically arranged at an inner peripheral side of an outer gear, and eccentric directions of both the inner gears are shifted from each other by 180° to the opposite side. By this, loads in an outer diameter direction due to a rise in fuel pressure affect one outer gear from the two inner gears oppositely to each other by 180°, so that an eccentric load is not generated, and sliding resistance of the outer gear to a cylindrical casing becomes small. Further, the number of teeth of the outer gear is made odd, and the number of teeth of the inner gears is made even.

摘要翻译： 两个内齿轮通过分隔壁彼此重叠，并且偏心地布置在外齿轮的内周侧，并且两个内齿轮的偏心方向彼此偏移180°到相对侧。 由此，由于燃料压力上升，在外径方向上的负载使两个内齿轮的一个外齿轮相互相对旋转180°，从而不会产生偏心负载，外齿轮的滑动阻力 圆柱形壳体变小。 此外，外齿轮的齿数变得奇数，并且使内齿轮的齿数均匀。

公开(公告)号：US06761547B2

公开(公告)日：2004-07-13

申请号：US10254514

申请日：2002-09-26

申请人： Masatoshi Takagi ,  Motoya Ito ,  Katsuhiko Kusagaya

发明人： Masatoshi Takagi ,  Motoya Ito ,  Katsuhiko Kusagaya

IPC分类号： F04C1800

CPC分类号： F04C11/001 ,  F04C2/102 ,  F04C11/008 ,  F04C15/0049

摘要： Two-inner gears are overlapped with each other through a partition wall and are eccentrically arranged at an inner peripheral side of an outer gear, and eccentric directions of both the inner gears are shifted from each other by 180° to the opposite side. By this, loads in an outer diameter direction due to a rise in fuel pressure affect one outer gear from the two inner gears oppositely to each other by 180°, so that an eccentric load is not generated, and sliding resistance of the outer gear to a cylindrical casing becomes small. Further, the number of teeth of the outer gear is made odd, and the number of teeth of the inner gears is made even.

摘要翻译： 两内齿轮通过分隔壁彼此重叠，并且偏心地布置在外齿轮的内周侧，并且两个内齿轮的偏心方向彼此偏移180°到相对侧。 由此，由于燃料压力上升，在外径方向上的负载使两个内齿轮的一个外齿轮相互相对旋转180°，从而不会产生偏心负载，外齿轮的滑动阻力 圆柱形壳体变小。 此外，外齿轮的齿数变得奇数，并且使内齿轮的齿数均匀。

公开(公告)号：US06729841B2

公开(公告)日：2004-05-04

申请号：US10107209

申请日：2002-03-28

申请人： Katsuhiko Kusagaya ,  Motoya Ito ,  Yukio Mori

发明人： Katsuhiko Kusagaya ,  Motoya Ito ,  Yukio Mori

IPC分类号： F04D500

CPC分类号： F01D1/12

摘要： A turbine pump includes a casing having an inlet, an outlet and front and rear arc-shaped pump passages and an impeller. The impeller has plural impeller partitions respectively disposed between every two of the blades thereby forming impeller grooves at front and rear sides of the partitions and an outer ring at the peripheral edge of the blades. Each impeller groove, each of pump passage and the outer ring form a space for circulating fuel. The outside diameter of the impeller is smaller than the pump passages so that the impeller does not contact the pump passages.

摘要翻译： 涡轮泵包括具有入口，出口和前后弧形泵通道和叶轮的壳体。 叶轮具有分别设置在每两个叶片之间的多个叶轮隔板，从而在隔板的前侧和后侧形成叶轮槽，在叶片的周缘处形成外环。 每个叶轮槽，每个泵通道和外环形成一个用于循环燃料的空间。 叶轮的外径小于泵通道，使得叶轮不接触泵通道。

公开(公告)号：US20070210673A1

公开(公告)日：2007-09-13

申请号：US11712415

申请日：2007-03-01

申请人： Katsuhiko Kusagaya

发明人： Katsuhiko Kusagaya

IPC分类号： H01R39/38

CPC分类号： H01R39/06 ,  F04D5/002 ,  F04D29/0467 ,  F04D29/047 ,  H01R2201/26 ,  H02K5/12 ,  H02K5/148 ,  H02K5/1672

摘要： A fuel pump includes a pump device for pumping fuel. The fuel pump further includes a motor device that has a commutator and an armature including a shaft. The commutator commutating electricity supplied to the armature for rotating the armature to drive the pump device. The fuel pump further includes a brush supplying electricity to the armature by making contact with the commutator. The fuel pump further includes a bearing member supporting the shaft. The fuel pump further includes a holder including a partition wall for supporting the bearing member. The partition wall electrically insulates the bearing member from the brush. The bearing member has a first bearing end surface on a side of the commutator. The partition wall has a wall end surface on a side of the commutator. The first bearing end surface is on an opposite side of the commutator with respect to the wall end surface.

摘要翻译： 燃料泵包括用于泵送燃料的泵装置。 燃料泵还包括具有换向器和包括轴的电枢的电动机装置。 换向器将提供给电枢的电力换向电枢以旋转电枢以驱动泵装置。 燃料泵还包括通过与换向器接触而向电枢供电的电刷。 燃料泵还包括支撑轴的轴承部件。 燃料泵还包括保持器，其包括用于支撑轴承部件的分隔壁。 分隔壁将轴承构件与刷子电绝缘。 轴承构件在换向器的一侧具有第一轴承端面。 分隔壁在换向器的一侧具有壁端面。 第一轴承端面相对于壁端面位于换向器的相对侧上。