公开(公告)号：US08123459B2

公开(公告)日：2012-02-28

申请号：US12203275

申请日：2008-09-03

申请人： Kenichi Tomomatsu ,  Tadashi Hazama ,  Eiji Iwanari ,  Yuuji Nakazu ,  Hiromi Sakai

发明人： Kenichi Tomomatsu ,  Tadashi Hazama ,  Eiji Iwanari ,  Yuuji Nakazu ,  Hiromi Sakai

IPC分类号： F01D1/12

CPC分类号： F04D5/005 ,  F04D29/188

摘要： A fuel pump has substantially coaxial outer and inner pump chambers. An impeller has partition walls correspondingly to the inner pump chamber to define inner vane grooves. A rear surface is located at a rear side in a rotative direction of each inner vane groove. At least a radially inner side of the rear surface inclines rearward in the rotative direction from the radially inner side to a radially outer side. A first line connects a radially inner end of the rear surface with a radially outer end of the rear surface. A second line radially extends from the radially inner end of the rear surface. The first line and the second line therebetween define a backward tilt angle α2, which satisfies a relationship of 30°≦α2≦80°.

摘要翻译： 燃料泵具有基本上同轴的外部和内部泵室。 叶轮具有对应于内泵室的隔壁以限定内叶片槽。 后表面位于每个内叶片槽的旋转方向的后侧。 后表面的至少径向内侧从旋转方向向后从径向内侧向径向外侧倾斜。 第一线将后表面的径向内端与后表面的径向外端连接。 第二线从后表面的径向内端部径向延伸。 第一线和第二线之间限定了向后倾斜角α2，其满足关系为30°＆lt; 1lE;α2＆nlE; 80°。

公开(公告)号：US20090060709A1

公开(公告)日：2009-03-05

申请号：US12203275

申请日：2008-09-03

申请人： Kenichi TOMOMATSU ,  Tadashi Hazama ,  Eiji Iwanari ,  Yuuji Nakazu ,  Hiromi Sakai

发明人： Kenichi TOMOMATSU ,  Tadashi Hazama ,  Eiji Iwanari ,  Yuuji Nakazu ,  Hiromi Sakai

IPC分类号： F01D1/12

CPC分类号： F04D5/005 ,  F04D29/188

摘要： A fuel pump has substantially coaxial outer and inner pump chambers. An impeller has partition walls correspondingly to the inner pump chamber to define inner vane grooves. A rear surface is located at a rear side in a rotative direction of each inner vane groove. At least a radially inner side of the rear surface inclines rearward in the rotative direction from the radially inner side to a radially outer side. A first line connects a radially inner end of the rear surface with a radially outer end of the rear surface. A second line radially extends from the radially inner end of the rear surface. The first line and the second line therebetween define a backward tilt angle α2, which satisfies a relationship of 30°≦α2≦80°.

摘要翻译： 燃料泵具有基本上同轴的外部和内部泵室。 叶轮具有对应于内泵室的隔壁以限定内叶片槽。 后表面位于每个内叶片槽的旋转方向的后侧。 后表面的至少径向内侧从旋转方向向后从径向内侧向径向外侧倾斜。 第一线将后表面的径向内端与后表面的径向外端连接。 第二线从后表面的径向内端部径向延伸。 第一行和第二行界定了一个后向倾斜角α2，它满足30°<=α2<= 80°的关系。

公开(公告)号：US20080089776A1

公开(公告)日：2008-04-17

申请号：US11872860

申请日：2007-10-16

申请人： Tadashi Hazama ,  Eiji Iwanari ,  Kenichi Tomomatsu

发明人： Tadashi Hazama ,  Eiji Iwanari ,  Kenichi Tomomatsu

IPC分类号： F02M37/08 ,  F04D5/00

CPC分类号： F02M37/048 ,  F04D5/002 ,  F04D5/007 ,  F04D29/445 ,  F04D29/669 ,  F05B2250/503

摘要： A fuel pump includes a rotatable impeller having a plurality of blades and blade ditches on the periphery thereof, a motor section for driving the impeller, and a casing member which accommodates the impeller and has at least one fuel passage along an outer periphery of the impeller. The fuel passage communicates with the blade ditches. Moreover, a radially-inside inner surface of the fuel passage, with respect to an axis of rotation of the impeller, from a centerline on a bottom of the fuel passage to a radially inside edge of the fuel passage is formed as an approximately quadrant curved surface.

摘要翻译： 一种燃料泵，包括在其周边具有多个叶片和叶片沟槽的旋转叶轮，用于驱动叶轮的马达部分和容纳叶轮的壳体构件，并且沿着叶轮的外周具有至少一个燃料通道 。 燃料通道与叶片沟槽连通。 此外，燃料通道的径向内侧的内表面相对于叶轮的旋转轴线从燃料通道的底部的中心线到燃料通道的径向内侧边缘形成为近似象限的弯曲 表面。

公开(公告)号：US08007226B2

公开(公告)日：2011-08-30

申请号：US11872860

申请日：2007-10-16

申请人： Tadashi Hazama ,  Eiji Iwanari ,  Kenichi Tomomatsu

发明人： Tadashi Hazama ,  Eiji Iwanari ,  Kenichi Tomomatsu

IPC分类号： F04D5/00

CPC分类号： F02M37/048 ,  F04D5/002 ,  F04D5/007 ,  F04D29/445 ,  F04D29/669 ,  F05B2250/503

摘要： A fuel pump includes a rotatable impeller having a plurality of blades and blade ditches on the periphery thereof, a motor section for driving the impeller, and a casing member which accommodates the impeller and has at least one fuel passage along an outer periphery of the impeller. The fuel passage communicates with the blade ditches. Moreover, a radially-inside inner surface of the fuel passage, with respect to an axis of rotation of the impeller, from a centerline on a bottom of the fuel passage to a radially inside edge of the fuel passage is formed as an approximately quadrant curved surface.

摘要翻译： 一种燃料泵，包括在其周边具有多个叶片和叶片沟槽的可旋转叶轮，用于驱动叶轮的马达部分和容纳叶轮的壳体构件，并且沿着叶轮的外周具有至少一个燃料通道 。 燃料通道与叶片沟槽连通。 此外，燃料通道的径向内侧的内表面相对于叶轮的旋转轴线从燃料通道的底部的中心线到燃料通道的径向内侧边缘形成为近似象限的弯曲 表面。

公开(公告)号：US07546833B2

公开(公告)日：2009-06-16

申请号：US11653372

申请日：2007-01-16

申请人： Kenichi Tomomatsu ,  Tadashi Hazama ,  Eiji Iwanari ,  Ryuji Igarashi ,  Katsuhisa Yamada

发明人： Kenichi Tomomatsu ,  Tadashi Hazama ,  Eiji Iwanari ,  Ryuji Igarashi ,  Katsuhisa Yamada

IPC分类号： F02M37/04

CPC分类号： F02M37/106 ,  F02M37/0011 ,  F02M37/0023 ,  F02M2037/228

摘要： A fuel feed apparatus is accommodated in a fuel tank. The fuel feed apparatus includes a sub-tank that is provided in a bottom of the fuel tank. The fuel feed apparatus further includes a fuel pump that is accommodated in the sub-tank. The fuel pump includes an impeller that defines a plurality of pump chambers. The fuel pump has a first suction passage through which fuel flows from outside the sub-tank into at least one of the plurality of pump chambers. The fuel feed apparatus further includes an elastic member that seals between the first suction passage and the sub-tank.

摘要翻译： 燃料供给装置容纳在燃料箱中。 燃料供给装置包括设置在燃料箱的底部的副罐。 燃料供给装置还包括容纳在副罐中的燃料泵。 燃料泵包括限定多个泵室的叶轮。 燃料泵具有第一吸入通道，燃料从副罐外部流入多个泵室中的至少一个。 燃料供给装置还包括密封第一吸入通路和副罐之间的弹性部件。

公开(公告)号：US20070199546A1

公开(公告)日：2007-08-30

申请号：US11653372

申请日：2007-01-16

申请人： Kenichi Tomomatsu ,  Tadashi Hazama ,  Eiji Iwanari ,  Ryuji Igarashi ,  Katsuhisa Yamada

发明人： Kenichi Tomomatsu ,  Tadashi Hazama ,  Eiji Iwanari ,  Ryuji Igarashi ,  Katsuhisa Yamada

IPC分类号： F02M37/04

CPC分类号： F02M37/106 ,  F02M37/0011 ,  F02M37/0023 ,  F02M2037/228

摘要： A fuel feed apparatus is accommodated in a fuel tank. The fuel feed apparatus includes a sub-tank that is provided in a bottom of the fuel tank. The fuel feed apparatus further includes a fuel pump that is accommodated in the sub-tank. The fuel pump includes an impeller that defines a plurality of pump chambers. The fuel pump has a first suction passage through which fuel flows from outside the sub-tank into at least one of the plurality of pump chambers. The fuel feed apparatus further includes an elastic member that seals between the first suction passage and the sub-tank.

摘要翻译： 燃料供给装置容纳在燃料箱中。 燃料供给装置包括设置在燃料箱的底部的副罐。 燃料供给装置还包括容纳在副罐中的燃料泵。 燃料泵包括限定多个泵室的叶轮。 燃料泵具有第一吸入通道，燃料从副罐外部流入多个泵室中的至少一个。 燃料供给装置还包括密封第一吸入通路和副罐之间的弹性部件。

公开(公告)号：US08051562B2

公开(公告)日：2011-11-08

申请号：US11968517

申请日：2008-01-02

申请人： Hiromi Sakai ,  Shinji Ueda ,  Tadashi Hazama ,  Eiji Iwanari ,  Shouya Watanabe

发明人： Hiromi Sakai ,  Shinji Ueda ,  Tadashi Hazama ,  Eiji Iwanari ,  Shouya Watanabe

IPC分类号： B23P15/00

CPC分类号： F02M37/048 ,  F04D5/002 ,  F04D29/406 ,  F04D29/628 ,  F05D2260/36 ,  Y10T29/49229 ,  Y10T29/49236 ,  Y10T29/49238 ,  Y10T29/49915 ,  Y10T29/49917 ,  Y10T29/49918 ,  Y10T29/49925

摘要： A cover is inserted into a housing of a fuel pump. Then, a housing-side engaging portion of the housing, which is located at a peripheral edge of an opening of the housing, is heated with a heating means. Thereafter, the housing-side engaging portion is swaged by a punch toward the cover to fix the cover to the housing.

摘要翻译： 一个盖子插入一个燃油泵的壳体。 然后，壳体的壳体侧接合部分位于壳体的开口的周边边缘处，用加热装置加热。 此后，通过冲头将壳体侧接合部分朝向盖子模制，以将盖子固定到壳体。

公开(公告)号：US20080172875A1

公开(公告)日：2008-07-24

申请号：US11968517

申请日：2008-01-02

申请人： Hiromi SAKAI ,  Shinji Ueda ,  Tadashi Hazama ,  Eiji Iwanari ,  Shouya Watanabe

发明人： Hiromi SAKAI ,  Shinji Ueda ,  Tadashi Hazama ,  Eiji Iwanari ,  Shouya Watanabe

IPC分类号： B23P15/00

CPC分类号： F02M37/048 ,  F04D5/002 ,  F04D29/406 ,  F04D29/628 ,  F05D2260/36 ,  Y10T29/49229 ,  Y10T29/49236 ,  Y10T29/49238 ,  Y10T29/49915 ,  Y10T29/49917 ,  Y10T29/49918 ,  Y10T29/49925

摘要： A cover is inserted into a housing of a fuel pump. Then, a housing-side engaging portion of the housing, which is located at a peripheral edge of an opening of the housing, is heated with a heating means. Thereafter, the housing-side engaging portion is swaged by a punch toward the cover to fix the cover to the housing.

摘要翻译： 一个盖子插入一个燃油泵的壳体。 然后，壳体的壳体侧接合部分位于壳体的开口的周边边缘处，用加热装置加热。 此后，通过冲头将壳体侧接合部分朝向盖子模制，以将盖子固定到壳体。

公开(公告)号：US20090011268A1

公开(公告)日：2009-01-08

申请号：US11814100

申请日：2006-01-17

申请人： Teruo Shimizu ,  Tsuneo Maruyama ,  Hideki Narisako ,  Tadashi Hazama

发明人： Teruo Shimizu ,  Tsuneo Maruyama ,  Hideki Narisako ,  Tadashi Hazama

IPC分类号： B32B5/18 ,  B32B15/02

CPC分类号： C22C9/06 ,  B22F2998/00 ,  B22F2999/00 ,  C22C1/0425 ,  C22C1/0433 ,  C22C13/00 ,  F16C33/121 ,  Y10T428/12042 ,  Y10T428/12708 ,  Y10T428/12715 ,  Y10T428/12903 ,  B22F3/11 ,  B22F3/10 ,  B22F2207/01 ,  B22F2201/016

摘要： A bearing for a motorized fuel pump is made of a Cu—Ni based sintered alloy, composed of: 21 to 35% by mass of Ni, 5 to 12% by mass of Sn, 3 to 7% by mass of C, 0.1 to 0.8% by mass of P, and the balance of Cu and inevitable impurities. A matrix of the bearing is formed with pores with a porosity of 8 to 18%, and the P component is predominantly included at the grain boundary, and free graphite is distributed along the insides of open pores that are open to the surface and extending into the bearing. In this bearing, a Sn rich alloy layer containing equal to or more than 50% by mass of Sn is formed on the insides of the open pores and near openings of the open pores.

摘要翻译： 电动燃油泵轴承由Cu-Ni基烧结合金制成，它由以下组成：Ni：21〜35质量％，Sn：5〜12质量％，C：3〜7质量％，0.1〜 P：0.8质量％，余量由Cu和不可避免的杂质构成。 轴承的基体形成有孔隙率为8〜18％的孔，并且P成分主要包含在晶界处，游离石墨沿着开放于表面的开放孔的内部分布并延伸到 轴承。 在该轴承中，在开孔的内侧和开口部的开口部形成有含有等于或大于50质量％Sn的Sn丰富的合金层。

公开(公告)号：US20080085199A1

公开(公告)日：2008-04-10

申请号：US11905754

申请日：2007-10-03

申请人： Tadashi Hazama ,  Kiyonori Moroto

发明人： Tadashi Hazama ,  Kiyonori Moroto

IPC分类号： F04B17/00

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

摘要： A fuel pump includes a plurality of magnets that are disposed circumferentially on an inner surface of a housing of the fuel pump and alternately form different magnetic poles, an armature rotatably disposed inside the permanent magnets, a rotating member disposed on a rotary shaft that is connected with the armature and rotates with the rotary shaft by rotating the armature, a pump casing that accommodates and rotatably supports the rotating member, and a discharge port disposed on the pump casing so as to discharge fuel pressurized by the rotation of the rotating member. According to the present invention, an imaginary line extending straight through the discharge port in a flow direction of fuel discharging from the discharge port extends into a circumferential gap between two of said permanent magnets.

摘要翻译： 一种燃料泵，包括多个磁体，其周向设置在燃料泵的壳体的内表面上，并且交替地形成不同的磁极，可旋转地设置在永磁体内部的电枢，设置在连接到旋转轴上的旋转部件 电枢通过旋转电枢而与旋转轴一起旋转，容纳并可旋转地支撑旋转构件的泵壳体和设置在泵壳体上的排出口，以排出通过旋转构件的旋转而被加压的燃料。 根据本发明，在从排出口排出的燃料的流动方向上直线延伸通过排出口的假想线延伸到两个永磁体之间的周向间隙中。