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公开(公告)号：JP2004190661A
公开(公告)日：2004-07-08
申请号：JP2003351897
申请日：2003-10-10
Applicant: Denso Corp , 株式会社デンソー
Inventor： EBIHARA YOSHIO , OSADA KIYOSHI , YAMADA KATSUHISA , IZUMITANI KOJI , SAKAI TATSUO , UMETSU KUNIHIRO
CPC classification number: F02M37/106
Abstract: PROBLEM TO BE SOLVED: To provide a fuel feed apparatus lowering the transmission of vibration to the outside.
SOLUTION: A pump module 30 is accommodated in the sub tank 20. The pump module 30 is provided with a fuel filter 32, a fuel pump and a pressure regulator 49. A suction filter 50 is connected with an intake port of the fuel pump, and brought into contact with a bottom inner wall of the sub tank 20. A nonwoven fabric material is disposed along an outer peripheral surface of the suction filter 50. A supporting member 60 connects a lid 36 of the fuel filter 32 and the sub tank 20 on the upper side of the suction filter 50. The supporting member 60 is an integrally formed thin plate, and has resilience. The supporting member 60 includes a central section 61 snap-fitting to the lid 36 and two arm sections 64 snap-fitting to a peripheral wall 27 of the sub tank 20.
COPYRIGHT: (C)2004,JPO&NCIPIAbstract translation: 要解决的问题：提供一种将振动传递降低到外部的燃料供给装置。 解决方案：泵模块30容纳在副罐20中。泵模块30设置有燃料过滤器32，燃料泵和压力调节器49.吸入过滤器50与进气口 燃料泵，并与副罐20的底部内壁接触。无纺布材料沿着吸滤器50的外周面配置。支撑部件60将燃料过滤器32的盖36和 副罐20在吸入过滤器50的上侧。支撑构件60是整体形成的薄板，并且具有弹性。 支撑构件60包括卡扣配合到盖36的中心部分61和与副罐20的周壁27卡扣配合的两个臂部分64.权利要求：（C）2004，JPO＆NCIPI
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公开(公告)号：JP2001355531A
公开(公告)日：2001-12-26
申请号：JP2001115132
申请日：2001-04-13
Applicant: DENSO CORP
Inventor： KOBAYASHI ATSUSHIGE , OI KIYOTOSHI , TAKEI OAKI , EBIHARA YOSHIO
Abstract: PROBLEM TO BE SOLVED: To provide a fuel pump with high pumping efficiency. SOLUTION: An impeller 30 has blade pieces 31 around the whole surface of its outer circumferential edge. Partitions 36 are disposed in grooved spaces 39 formed between the circumferentially adjoining blade pieces 31 and partition parts of the grooved spaces 39 in an approximately center of the width in the rotational shaft direction of the impeller 30 from the roots of the blade pieces 31. The root side of the blade piece 31 is inclined rearward in the rotational direction, while its tip side in the diametrical outside is inclined frontward in the rotational direction. A recess in a front face 32 is gradually and sequentially reduced from the root of the blade piece 31 toward the tip in the diametrical outside and sequentially enlarged inward from the both ends in the rotational shaft direction. The recess in the root side of the front face 32 is large so that the fuel easily flows from the root side of the blade piece 31 towards the grooved space 39 by the rotation of the impeller 30. The recess of the front face 32 is reduced so that the flow rate of the fuel flowing to the tip side of the grooved space 39 increases.
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公开(公告)号：JP2001268855A
公开(公告)日：2001-09-28
申请号：JP2000081406
申请日：2000-03-23
Applicant: DENSO CORP
Inventor： KIYOSE KENZO , EBIHARA YOSHIO
Abstract: PROBLEM TO BE SOLVED: To realize superior electric contact between a commutator segment and a metal segment in a disk commutator of a type with junction structure on the other side of commutation, while restraining structure and manufacturing process from complicating and preventing damage of the commutator segment. SOLUTION: In a disk commutator of a type with junction structure on the other side of commutation, a protruding part 4 of the commutator segment 1 is fitted in a cylinder 210 of the metal segment 2. Function of elastic deformation which can reduce the diameter of a cylinder 21 is given to the peripheral part of the cylinder 21 of the metal segment 2. By fitting the protruding part 4 in the cylinder 210, the peripheral part of the cylinder 210 of the metal segment 2 is deformed elastically in the direction increasing the diameter with the protruding part 4. By a self elastic deformation restoring force of the peripheral part of the cylinder 210 of the metal segment 2, superior electric contact between the metal segment 2 and the protruding part 4 is obtained.
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公开(公告)号：JPH11346460A
公开(公告)日：1999-12-14
申请号：JP31468898
申请日：1998-11-05
Applicant: DENSO CORP
Inventor： KIYOSE KENZO , EBIHARA YOSHIO , YAMASHITA KEIICHI , YOSHINO MUTSUMI , SAKAMOTO ZENJI
Abstract: PROBLEM TO BE SOLVED: To provide a commutator which can positively electrically connect a contact member an a terminal member and can position both of the members easily and also provide a fuel pump using such a commutator, and a method for manufacturing the commutator. SOLUTION: A commutator 50 is constituted of eight segments which are electrically insulated from each other by means of radial grooves 61, and each segment is constituted of a contact member 51 which brushes by a brush and a terminal member 53. A base metal of a contact members 51 before being divided by the grooves 61 has on the inner side an annular projection projecting toward a rotary shaft of the commutator. In an assembled state of the base metal of the contact members 53 and a base metal of the terminal members before filling in spaces between the contact members 51 and the terminal members 53 with connection material 57, the outer surface of the projection formed in the base metal of the contact members and the inner surface of the base metal of the terminal members surrounding the outer surface of the base metal of the contact members are in contact at several places, thereby allowing the contact members and the terminal members only to rotate. Since the base metal of the contact members and that of the terminal members can be assembled, without adjusting a space between the outer surface of the projection of the base metal of the cost members and the inner surface of the base metal of the terminal members, the number of manufacturing processes can be reduced.
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公开(公告)号：JPH10318072A
公开(公告)日：1998-12-02
申请号：JP14338997
申请日：1997-05-15
Applicant: NIPPON SOKEN , DENSO CORP
Inventor： KAWAI NAOKI , OHARA YASUSHI , KANEHARA KENJI , EBIHARA YOSHIO , KIYOSE KENZO
Abstract: PROBLEM TO BE SOLVED: To prevent inclination of a rotary shaft in a circumferential flow type fuel pump. SOLUTION: In a circumferential flow type fuel pump, an impeller 21 is connected to an extended portion from a bearing 51 of a rotary shaft 4, while a fuel flow passage 201 is formed on a concentric portion. A pressure regulating part 6 is arranged on a position with the same direction around the rotary shaft 4 as in a downstream part 201b of the fuel flow passage 201, and opposed to a peripheral surface of an armature 31 of a motor 3 connected to the rotary shaft 4. Force to be applied to the impeller 21 due to fuel pressure of the fuel flow passage 201 whose downstream part 201b is high and force to be applied to the armature 31 due to the fuel pressure around the armature 31 of the pressure regulating part 6, whose position is high are balanced around the bearing 51.
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Patent Agency Ranking
公开(公告)号：JP2005016519A
公开(公告)日：2005-01-20
申请号：JP2004157355
申请日：2004-05-27
Applicant: Denso Corp , 株式会社デンソー
Inventor： TORII MIKIO , EBIHARA YOSHIO , OKAZONO TETSUO , KOBA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a fuel supply device capable of easily supporting a fuel pump and a fuel filter pump module inside a fuel tank, commonizing a pump module, and easily changing installation height or angles of the pump module inside the fuel tank.
SOLUTION: A flange 12 of the fuel supply device 10 is attached on a bottom wall 2 of the fuel tank 1 to close an opening part 2a formed on the bottom wall 2. The pump module 20 includes the fuel pump 21, a fuel filter 22 and a pressure regulator 60 or the like. A cylindrical part 27 is formed projectingly from a side of a filter case 24. One side of a shaft 30 is press-fitted in a press-fit part 13 of the flange 12 and another side of the shaft 30 is inserted in the cylindrical part 27. The shaft 30 prevents the pump module 20 from falling off by locking the cylindrical part 27 via a vibration isolating member 40 and a washer 50 with a step 34 of the shaft.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：提供一种燃料供给装置，其能够容易地将燃料泵和燃料过滤器泵模块支撑在燃料箱内，使泵模块平坦化，并且容易地改变其内部的泵模块的安装高度或角度 油箱。 解决方案：燃料供给装置10的凸缘12安装在燃料箱1的底壁2上，以封闭形成在底壁2上的开口部分2a。泵模块20包括燃料泵21， 燃料过滤器22和压力调节器60等。 圆筒部27从过滤器壳体24的侧面突出地形成。轴30的一侧压配合在凸缘12的压入部13中，轴30的另一侧插入圆筒部 轴30通过经由振动隔离构件40和具有轴的台阶34的垫圈50锁定圆柱形部件27来防止泵模块20脱落。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2004257246A
公开(公告)日：2004-09-16
申请号：JP2002232195
申请日：2002-08-09
Applicant: DENSO CORP , KYOSAN DENKI KK
Inventor： EBIHARA YOSHIO , KAWASAKI HIROAKI , KIMURA AKIHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a motor-type fuel pump for a vehicle with a single hole formed to serve both as a positioning pin press-in hole and a pressure relief hole without needing to form separate holes while positively preventing the occurrence of vapor lock due to high pressure fuel on the discharge side of a pump chamber entering the intake side. SOLUTION: A boundary area between a high pressure part in which a discharge port 8 of the fuel pump is disposed, and a low pressure part in which a suction port 7 is disposed, is formed with a pressure relief groove 33 extending along the boundary area and communicating with the outside of the pump through the pressure relief hole 34, or a slit is formed communicating with the outside. Fuel at a high pressure area part can thereby be positively drained. Further, the pressure relief groove 33 can serve both as the positioning pin insertion hole and the pressure relief hole by communicating the pressure relief groove 33 with a positioning pin insertion port. COPYRIGHT: (C)2004,JPO&NCIPI
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公开(公告)号：JP2004197733A
公开(公告)日：2004-07-15
申请号：JP2003167502
申请日：2003-06-12
Applicant: Denso Corp , 株式会社デンソー
Inventor： OKAZONO TETSUO , TORII MIKIO , KOBA TAKASHI , EBIHARA YOSHIO
Abstract: PROBLEM TO BE SOLVED: To provide a fuel supplying device in which the position of a detection means can be easily changed and common use of components and designs can be realized.
SOLUTION: A center gage 50 is mounted to a stay 60 separated from a flange 20 and a bracket 43 which support a fuel pump 30. Accordingly, the mounting position of the center gage 50 can be arbitrarily set without changing the shape of each member of the fuel supplying device 1 including the flange 20 and the bracket 43 by changing the shape of the stay 60. As a result, the position of the center gage 50 can be changed to the position where interference with a float member 54, a fuel tank 10, a sub-tank 12 or a suction filter 31 can be prevented without causing design changes of the flange 20 and the bracket 43 or the like.
COPYRIGHT: (C)2004,JPO&NCIPI-
公开(公告)号：JP2003286923A
公开(公告)日：2003-10-10
申请号：JP2002090665
申请日：2002-03-28
Applicant: Denso Corp , Honda Motor Co Ltd , 本田技研工業株式会社 , 株式会社デンソー
Inventor： EBIHARA YOSHIO , NARUSEKO HIDEKI , KITAMOTO SHOICHI
CPC classification number: Y02T10/123
Abstract: PROBLEM TO BE SOLVED: To provide a check valve capable of holding a valve element in a neutral state, and a fuel pump module using the same.
SOLUTION: This check valve 3 is provided with a valve housing 30 having a fluid passage 301, a valve seat 31 fixed in the valve housing 30, a valve element 32 disposed to be seated on/separated from the valve seat 31, and a valve element stopper 34 to regulate lift quantity of the valve element 32 to the valve seat 31. The check valve 3 switches between a valve closing state for the valve element 32 to be seated on the valve seat 31 for closing the fluid passage 301, and a valve opening state for the valve element 32 to be separated from the valve seat 31 to a position where the valve element 32 is regulated by the valve element stopper 34 for opening the fluid passage 301. The check valve 3 has a valve element holding member 35 to hold the valve element 32 in a neutral state between the valve closing state and the valve opening state when downstream side pressure and upstream side pressure of the valve seat 31 are almost equal to each other. The fuel pump module is provided with the check valve 3 and a fuel pump.
COPYRIGHT: (C)2004,JPOAbstract translation: 要解决的问题：提供一种能够将阀元件保持在中立状态的止回阀和使用该止回阀的燃料泵模块。 解决方案：该止回阀3设置有具有流体通道301的阀壳体30，固定在阀壳体30中的阀座31，设置在阀座31上/与阀座31分离的阀体32， 以及用于调节阀元件32到阀座31的提升量的阀元件止动件34.止回阀3在阀元件32的关闭状态之间切换以安置在阀座31上，以关闭流体通道301 以及阀元件32从阀座31分离到阀元件32由用于打开流体通道301的阀元件止动件34调节的位置的阀打开状态。止回阀3具有阀元件 保持构件35，当阀座31的下游侧压力和上游侧压力几乎相等时，将阀体32保持在阀关闭状态和阀打开状态之间的空档状态。 燃料泵模块设置有止回阀3和燃料泵。 版权所有（C）2004，JPO
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公开(公告)号：JP2003247470A
公开(公告)日：2003-09-05
申请号：JP2002046179
申请日：2002-02-22
Applicant: KYOSAN DENKI KK , DENSO CORP
Inventor： SEKINE HITOSHI , NOYA TAMOTSU , KIMURA AKIHIRO , TANAKA MASAAKI , EBIHARA YOSHIO , SAKAI TATSUO
Abstract: PROBLEM TO BE SOLVED: To solve the following problems in a motor type fuel pump mounted in a fuel tank: a relief valve for relieving excessive pressure of fuel delivered and a one-way valve for preventing fuel in a fuel supply pipe from flowing backward are provided for the fuel pump, and a pressure regulating valve for maintaining a predetermined fuel pressure is provided downstream the one- way valve; these arrangements result in the heavier and bigger fuel pump; and pressure regulating process is also troublesome. SOLUTION: A relief valve provided with a pressure regulating function 16 is provided integrally with a one-way valve 11 provided at a delivery port 9 of a fuel pump 1. The relief valve provided with the pressure regulating function 16 closes a valve seat 19 formed in an opening in a relief flow path communicating with a valve chamber 14 of the one-way valve 11 using a valve body 17 urged to a predetermined pressure by a spring 18 to maintain fuel in a fuel supply pipe 3 at a predetermined pressure. The relief valve 16 is also operated when pressure of fuel from the pump is excessive. This eliminates the need for a conventional relief valve provided in the fuel pump and allows these devices to be built compactly. COPYRIGHT: (C)2003,JPO
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