-
公开(公告)号：JPH10213089A
公开(公告)日：1998-08-11
申请号：JP250097
申请日：1997-01-10
Applicant: DENSO CORP
Inventor： MURAMATSU TOSHIHIKO , ITO MOTOYA , KOBAYASHI ATSUSHIGE
Abstract: PROBLEM TO BE SOLVED: To lengthen a pump flow passage which can be utilized for boosting and reduce pressure loss by reducing a direction changing angle when fuel flows from the pump flow passage to the discharge port, in a fuel pump using a reproduced pump. SOLUTION: In this pump, a discharge port 36 being communicated with the termination part of a pump flow passage is provided on the radially external side of the pump flow passage and the pump flow passage is extended to a radial seal part 40. By forming the discharge port 36 by being inclined in the revolving direction of an impeller, the inside surface of the discharge port 36 that fuel with a speed line segment of the same direction as the revolving direction of the impeller flows in the discharge port 36 collides is defined as a slant face 36a and pressure loss of fuel at the time of the collision is reduced. And because a guide groove to the discharge port 36 is formed at the termination part, fuel can be smoothly flowed within the blade groove of the impeller.
-
公开(公告)号：JPH09310694A
公开(公告)日：1997-12-02
申请号：JP12606496
申请日：1996-05-21
Applicant: DENSO CORP
Inventor： ITO MOTOYA , MATSUDA TAKESHI
Abstract: PROBLEM TO BE SOLVED: To provide a fuel pump whose fuel discharge quantity can be regulated through a simple method and its manufacturing method. SOLUTION: The thickness of a housing 11 is set up so that in a state where an auxiliary housing 50 is not attached, the magnetic circuit of a motor section 30 may be magnetically saturated in the housing 11. The fuel discharge quantity of the fuel pump 10 is measured in the state where the auxiliary housing 50 is not attached, and this measurement value is compared with the required discharge quantity, and the auxiliary housing 50 whose plate thickness is selected so as to approach the desired discharge quantity is attached to the outer periphery of the housing 11 to increase the thickness of the whole of the housing for increasing effective magnetic fluxes ϕ and lowering the number of revolutions N. As a result, the fuel discharge quantity of the fuel pump 10 excessive in comparison with the required discharge quantity decreases. Thus since the consumed electric power of the fuel pump 10 can be reduced, and the quantity of fuel returned to the fuel tank decreases, the vapor generation of the fuel can be controlled.
-
公开(公告)号：JP2011220191A
公开(公告)日：2011-11-04
申请号：JP2010089306
申请日：2010-04-08
Applicant: Denso Corp , 株式会社デンソー
Inventor： HAYAKAWA TETSUO , TAKAGI MASATOSHI , ITO MOTOYA
Abstract: PROBLEM TO BE SOLVED: To prevent electrolytic corrosion in terminal components (a pair of positive and negative electrode terminals 3, 4 and a pair of positive and negative electrode terminals 5, 6) by improving leak current suppression effect between the positive electrode terminals 3, 5 and the negative electrode terminals 4, 6 immersed in fuel with high conductivity such as alcohol mixed fuel.SOLUTION: A connector fitting device of a first electric connector and a second electric connector is provided with a structure for reducing the size of a pair of terminal housing chambers 11, 12 in a housing 1 of the first electric connector. In addition, the material of the housing 1 is made PPS and the material of a housing 2 is made POM so that the swelling ratio of the housing 2 is higher than the swelling ratio of the housing 1. When a fuel pump is immersed in the fuel, a gap size between each of terminal housing chambers 11, 12 of the housing 1 and each of blocks 21, 22 of the housing 2 is packed by swelling for the fuel, respectively.
Abstract translation: 要解决的问题：为了通过改善正电极之间的泄漏电流抑制效果来防止端子部件（一对正极和负极端子3,4以及一对正极和负极端子5,6）中的电解腐蚀 端子3,5和负极端子4,6浸入诸如酒精混合燃料的高导电性的燃料中。 解决方案：第一电连接器和第二电连接器的连接器装配装置设置有用于减小第一电连接器的壳体1中的一对端子容纳室11,12的尺寸的结构。 此外，壳体1的材料制成PPS，并且壳体2的材料被制成POM，使得壳体2的溶胀比高于壳体1的溶胀比。当燃料泵浸入 燃料，壳体1的每个端子容纳室11,12和壳体2的每个块21,22之间的间隙尺寸分别被燃料膨胀包装。 版权所有（C）2012，JPO＆INPIT
-
公开(公告)号：JP2008064029A
公开(公告)日：2008-03-21
申请号：JP2006242800
申请日：2006-09-07
Applicant: Denso Corp , 株式会社デンソー
Inventor： TAKAGI MASATOSHI , ITO MOTOYA
IPC: F02M37/10
Abstract: PROBLEM TO BE SOLVED: To provide a fuel pump capable of restraining electric erosion of terminals, without enlarging, even when a highly conductive component is included in fuel. SOLUTION: This fuel pump has a delivery side cover 40 forming a delivery port of the fuel, a force feed pump for fuel, a motor part for driving the pump part, the positive electrode side external connecting terminal 51 and the negative electrode side external connecting terminal 52 supplied with electric power being a driving source of the motor part from an external part, a bearing holder 30 of an insulator for supporting a rotary shaft of the motor part, a holder 57 and a mold part 50M arranged between the delivery side cover 40 and the bearing holder 30 and supporting both terminals 51 and 52. A projection part 502 is formed in the mold part 50M, and a recessed part 45 of a shape along a projecting surface of the projection part 502, is formed on an inner surface of the delivery side cover 40. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：即使当燃料中包含高导电性的组分时，也可以不扩大，来提供能够抑制端子电蚀的燃料泵。 解决方案：该燃料泵具有形成燃料输送口的输出侧盖40，燃料用供给泵，驱动泵部的马达部，正极侧外部连接用端子51和负极 从外部供给作为电动机部件的驱动源的电力侧外部连接端子52，用于支撑电动机部件的旋转轴的绝缘体的轴承保持件30，配置在电动机部件的旋转轴之间的保持器57和模具部50M 输出侧盖40和轴承座30并支撑两个端子51和52.突出部分502形成在模具部分50M中，并且沿突出部分502的突出表面形成的凹部45形成在 输送侧盖40的内表面。（C）2008，JPO＆INPIT
-
公开(公告)号：JP2005204387A
公开(公告)日：2005-07-28
申请号：JP2004006971
申请日：2004-01-14
Applicant: Denso Corp , 株式会社デンソー
Inventor： ITO MOTOYA , YAMASHITA KEIICHI
IPC: F02M37/10 , F04D5/00 , H01R39/04 , H01R39/06 , H01R39/32 , H01R43/06 , H01R43/08 , H02K5/10 , H02K5/12 , H02K13/00 , H02K13/04 , H02K23/00
CPC classification number: H01R43/08 , H01R39/32 , H02K5/12 , H02K13/006
Abstract: PROBLEM TO BE SOLVED: To provide a commutator having a short manufacturing time and a low cost and to provide a motor using the same and a fuel pump.
SOLUTION: An armature 50 has six bobbins 60 installed in a rotating direction, and a coil 62 is wound on each bobbin 60. The end of each coil 62 of the commutator 70 side is electrically connected to a terminal 64. The commutator 70 has six segments 72 installed in the rotating direction. The segments 72 are electrically connected to a terminal 75 through an intermediate terminal 74. In the terminal 75, the segments 72 installed at the radial opposite side are electrically connected to each other. The segments 72, the intermediate terminal 74 and the terminal 75 are supported by a resin material 76. The resin material 76 is a thermoplastic insulation resin. The segments 72 of the commutator 70 are electrically connected to the coil 62 of the armature 50 by engaging the terminal 75 of the commutator 70 in contact with the terminal 64 of the armature 50 and electrically connecting the terminal 75 of the commutator 70 to the terminal 64 of the armature 50.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：提供一种制造时间短且成本低的换向器，并提供使用该换向器的电动机和燃料泵。 电枢50具有沿旋转方向安装的六个线轴60，线圈62缠绕在每个绕线管60上。换向器70侧的每个线圈62的端部电连接到端子64.换向器 70具有沿旋转方向安装的六个段72。 段72通过中间端子74电连接到端子75.在端子75中，安装在径向相对侧的段72彼此电连接。 节段72，中间端子74和端子75由树脂材料76支撑。树脂材料76是热塑性绝缘树脂。 换向器70的线段72通过与换向器70的端子75接触而与衔铁50的线圈62电连接，并与电枢50的端子75电连接到端子 电枢50的64个。版权所有（C）2005，JPO＆NCIPI
-
Patent Agency Ranking
公开(公告)号：JP2004028083A
公开(公告)日：2004-01-29
申请号：JP2003045412
申请日：2003-02-24
Applicant: Denso Corp , 株式会社デンソー
Inventor： MOROTO KIYONORI , ITO MOTOYA , IWANARI EIJI
IPC: F02M37/10 , F02M37/08 , F04D5/00 , F04D13/06 , H02K1/17 , H02K1/24 , H02K1/30 , H02K3/18 , H02K3/52 , H02K13/04 , H02K23/04 , H02K23/30
CPC classification number: H02K3/527 , F02M37/048 , F04D5/002 , F04D13/0673 , H02K1/30 , H02K13/04 , H02K23/30
Abstract: PROBLEM TO BE SOLVED: To provide a fuel pump which can easily wind a winding, be miniaturized, or increase the torque.
SOLUTION: Four permanent magnets 30 formed in a quarter arc shape are installed circumferentially on an inner circumferential wall of a housing 12 to form four pole pieces of different poles in the circumferential direction. An armature 40 is rotatably installed on an inner region of the permanent magnet 30. Six magnetic pole coil portions 50 of the armature 40 are installed circumferentially on an outer region of a center core 42. Each magnetic pole coil portion 50 have a coil core 52, a bobbin 60, and a coil 62 formed by winding a winding on the bobbin 60 in a concentrated winding form. The coil core 52 has an outer circumferential part 54 facing the permanent magnet 30 along the rotational direction and a board-shaped coil winding portion 56 extending from the outer circumferential part 54 to the center core 42. The bobbin 60 covers the coil core 52 except an outer circumferential surface 55 and a projecting part 58 of the outer circumferential part 54.
COPYRIGHT: (C)2004,JPO-
公开(公告)号：JP2002272025A
公开(公告)日：2002-09-20
申请号：JP2001066432
申请日：2001-03-09
Applicant: DENSO CORP
Inventor： TAKAHAMA MASAHIRO , ITO MOTOYA , MOROTO KIYONORI
IPC: H02K1/18
Abstract: PROBLEM TO BE SOLVED: To provide a stacked cores for a rotating machine which can reduce the eddy current loss. SOLUTION: On a sheet core 2, recessed parts 4a formed on the surface of a magnet pole part and protruding parts 4b that project on its back surface are provided. The recessed parts 4a and the protruding parts 4b of the sheet cores 2, which are stacked, are press-connected to each other. But press- connectable positions and non press-connectable ones of the recessed parts 4a to the protruding parts 4b are provided alternately in the circumferential direction. In the stacked cores made by stacking these sheet cores 2, the press- connecting parts 'A' are dislocated in the circumferential direction for each group of a given number of pieces of the sheet cores 2. This structure prevents the press-connecting parts A from continuing in the stacking direction, so that the eddy current loss can be reduced sharply. Also, by rotating and stacking a given number of pieces of the sheet cores 2 in the circumferential direction, the total length of the stacking direction can be made equal over the entire circumference. In this way, good balance is made, when it is rotated, with the effect of lessening the vibrations and abnormal noises.
-
公开(公告)号：JP2001280211A
公开(公告)日：2001-10-10
申请号：JP2000099640
申请日：2000-03-31
Applicant: DENSO CORP
Inventor： ITO MOTOYA
IPC: F02M37/10
Abstract: PROBLEM TO BE SOLVED: To provide a fuel system allowing the components of the fuel system to be arranged compactly on the module system. SOLUTION: A fuel pump 12 is composed of a pump part 14 and a brushless motor 1 to drive the pump. The housing 15 of the fuel pump 12 includes a cylindrical motor housing 15a so formed that the stator 16 of brushless motor 13 is molded with an insulating resin and a mounting flange 27 for fixing the fuel pump 12 to a fuel tank is formed integrally at the top of the motor housing 15a. The drive circuit 26 for the brushless motor 13 is molded from the same resin material used to the stator 16 in such a way that the drive circuit 26 is sealed at the same time. A pressure regulator 44 to adjust the discharge pressure of the pump part 14 and a fuel filter 40 formed from a fibrous molding material having excellent filtrating performance are assembled under the pump part 14 of the fuel pump 12, and the fuel filtrated by the filter 40 is sucked into the fuel pump 12.
-
公开(公告)号：JP2000354392A
公开(公告)日：2000-12-19
申请号：JP16177599
申请日：1999-06-09
Applicant: DENSO CORP
Inventor： MOROTO KIYONORI , ITO MOTOYA
Abstract: PROBLEM TO BE SOLVED: To prevent decrease of revolutions at the time of the drop in motor driving voltage and to improve output characteristic at the time of the drop in motor driving voltage, by changing the changeover timing of conduction to the armature coil of each phase in accordance with a detected motor drive voltage. SOLUTION: A drive control circuit 31 detects an induced voltage generated in the armature coil of a non-conducting phase as a neutral point voltage, based on which the circuit 31 also detects the rotational position of a magnet rotor 23. Then, in accordance with the rotational position of the magnet rotor 23, groups of MOSFETs in the upper and lower sections of each phase are switched on in sequence and the armature coils of three phases out of five phases are turned on simultaneously to drive a brushless motor 14. The voltage of a battery (a motor driving voltage) is monitored based on the output signal of a voltage detecting circuit while the motor is driven. When the battery voltage is higher than a discriminating one, the changeover timing of the conducting phases is fixed to a constant timing that brings about the highest motor efficiency. When it is lower than the discriminating voltage, the changeover timing of the conducting phase is advanced.
-
公开(公告)号：JP2000125488A
公开(公告)日：2000-04-28
申请号：JP28818798
申请日：1998-10-09
Applicant: DENSO CORP
Inventor： ITO MOTOYA
Abstract: PROBLEM TO BE SOLVED: To improve the motor efficiency of a motor whose rotor is driven by a magnet torque. SOLUTION: The magnetization of each of magnets 10 is oriented extending in the radial direction from the center of a circular arc outside the outer circumferential circle of a rotor core 9. The magnet 10 has end surfaces 10a, 10c and 10d which face the outer circumferential circle of the rotor core 9. The center of the circular arc is provided at a position opposite to the center of the rotor core 9, with respect to tangents at the end parts in the circumferential directions of the end surfaces 10a, 10c and 10d.
-
-
-
-
-
-
-
-
-
Search Results
70
records
(took 0.02 seconds)
