公开(公告)号：US20180328323A1

公开(公告)日：2018-11-15

申请号：US15774060

申请日：2016-11-04

Applicant: DENSO CORPORATION ,  KYOSAN DENKI CO., LTD.

Inventor： Shingo FUKUOKA ,  Kiyoshi NAGATA ,  Norihiro HAYASHI ,  Katsuhisa YAMADA

IPC: F02M37/00 ,  F02M37/22 ,  F02M37/10 ,  B60K15/03 ,  B01D35/26 ,  B01D29/11 ,  G01F23/38

CPC classification number: F02M37/0052 ,  B01D29/11 ,  B01D35/26 ,  B01D2201/16 ,  B60K15/03 ,  B60K2015/03217 ,  F02M37/00 ,  F02M37/007 ,  F02M37/10 ,  F02M37/22 ,  F02M37/50 ,  G01F23/38

Abstract: A fuel supply device includes a pump unit that sucks stored fuel in a fuel tank from a suction port and discharges the fuel to an outside of the fuel tank. A pressure regulating valve performs pressure regulation of fuel discharged from the pump unit. The pressure regulating valve includes a return port having an opening facing in a separating direction away from the suction port, and returns surplus fuel generated by the pressure regulation from the return port into the fuel tank. A suction filter encloses an internal space where the suction port is open, and filters the stored fuel entering the internal space. The suction filter includes an expansion part to which the internal space is extended, and the expansion part is on a side of the return port that faces in the separating direction.

公开(公告)号：US20160211719A1

公开(公告)日：2016-07-21

申请号：US14914785

申请日：2014-08-21

Applicant: DENSO CORPORATION

Inventor： Yuuji HIDAKA ,  Masaya OOTAKE ,  Kiyoshi NAGATA

IPC: H02K7/04 ,  H02K1/02

CPC classification number: H02K7/04 ,  H02K1/02 ,  H02K1/2733 ,  H02K5/12

Abstract: A permanent magnet of a rotor core of a rotor includes a first recess and a second recess, which are formed in an outer wall to correct a dynamic balance of the rotor. The permanent magnet is a bonded magnet that is formed by molding a mixture material, which is a mixture of resin and magnetic powder. The first recess and the second recess are formed at the time of molding the permanent magnet. Furthermore, the first recess and the second recess are formed at two axial ends, respectively, of the permanent magnet.

Abstract translation: 转子的转子芯的永磁体包括形成在外壁上以校正转子的动平衡的第一凹部和第二凹部。 永磁体是通过模制作为树脂和磁性粉末的混合物的混合材料形成的粘结磁体。 第一凹部和第二凹部在成型永磁体时形成。 此外，第一凹部和第二凹部分别形成在永磁体的两个轴向端部处。

公开(公告)号：US20130147406A1

公开(公告)日：2013-06-13

申请号：US13760175

申请日：2013-02-06

Applicant: DENSO CORPORATION

Inventor： Masahiro KURODA ,  Nobumasa UEDA ,  Kiyoshi NAGATA ,  Masaya OOTAKE ,  Sadahiro AKAMA

IPC: H02P6/20

CPC classification number: H02P6/20 ,  H02M7/53875

Abstract: A control system controls a multiphase rotating machine by a 120° energization process and a PWM process. In the 120° energization process, respective ones of switching elements of a high side arm and switching elements of a low side arm of a power conversion circuit are turned on. In the PWM process, the switching elements of the power conversion circuit turn on/off so that two phases that are connected to the switching elements that are in the on-state are alternately rendered conductive to the high potential side input terminal and the low potential side input terminal of the power conversion circuit.

Abstract translation: 控制系统通过120°通电过程和PWM过程控制多相旋转机器。 在120°通电处理中，高侧臂的开关元件和功率转换电路的低侧臂的开关元件中的各个导通。 在PWM处理中，功率转换电路的开关元件导通/截止，使得连接到处于导通状态的开关元件的两相交替地导通到高电位侧输入端子和低电位 电源转换电路的侧面输入端子。

公开(公告)号：US20170080796A1

公开(公告)日：2017-03-23

申请号：US15125978

申请日：2015-03-26

Applicant: DENSO CORPORATION

Inventor： Tatsuya KAKEHI ,  Noboru NAGASE ,  Kiyoshi NAGATA ,  Akihiro KONNO

IPC: B60K15/035 ,  B60K15/05 ,  H02K5/22 ,  F02M37/08 ,  F02M37/00

CPC classification number: B60K15/035 ,  B60K15/05 ,  B60K2015/03236 ,  B60K2015/0458 ,  F02D33/003 ,  F02M25/08 ,  F02M37/0076 ,  F02M37/0082 ,  F02M37/08 ,  F02M37/10 ,  F02M37/103 ,  F02M2037/082 ,  F02M2037/085 ,  H02K5/225

Abstract: A fuel tank lid includes a lid part and a terminal. The lid part includes an inserted part inserted into an opening of a fuel tank, and a storage part storing a drive circuit. The terminal has a central portion covered by the inserted part and the storage part, a first end connected to a pump, and a second end connected to the drive circuit. The storage part includes a side wall that has a first opening and a second opening, an upper closure part that closes the first opening, and a lower closure part that closes the second opening. The fuel tank lid further includes a discharge structure positioned vertically lower than the upper closure part and discharging a fuel vapor that has travelled along an interface between the terminal and the lid part and entered a hollow space of the storage part, to an external atmosphere.

公开(公告)号：US20130315759A1

公开(公告)日：2013-11-28

申请号：US13890459

申请日：2013-05-09

Applicant: DENSO CORPORATION

Inventor： Tetsuo HAYAKAWA ,  Masaya OOTAKE ,  Kiyoshi NAGATA

IPC: H02K3/46

CPC classification number: H02K3/46 ,  H02K3/28 ,  H02K3/32 ,  H02K3/34 ,  H02K3/345 ,  H02K3/38 ,  H02K3/52 ,  H02K3/522 ,  H02K5/22 ,  H02K5/225 ,  H02K11/00 ,  H02K11/0094 ,  H02K13/04

Abstract: An electric motor has multiple core portions, multiple bobbins covering the respective core portions, and multiple coil windings wound on the respective core portions and bobbins. Each of the bobbins has a first and a second circumferential forward ends, at which a first and a second holding portions are formed. The first holding portion holds a winding-start portion and the second holding portion holds a winding-end portion. The winding-start portion is prevented from being brought into contact with the winding-end portion and main winding portion of the coil winding between the winding-start portion and the winding-end portion.

Abstract translation: 电动机具有多个芯部，多个线轴覆盖相应的芯部，多个线圈绕组缠绕在相应的芯部和线轴上。 每个筒管具有形成有第一和第二保持部的第一和第二周向前端。 第一保持部保持卷绕开始部，第二保持部保持卷绕端部。 卷绕起始部分被防止与绕组开始部分和绕组端部分之间的线圈绕组的绕组端部分和主绕组部分接触。

公开(公告)号：US20190017475A1

公开(公告)日：2019-01-17

申请号：US16069015

申请日：2017-01-24

Applicant: DENSO CORPORATION

Inventor： Shingo FUKUOKA ,  Kiyoshi NAGATA ,  Hiromi SAKAI ,  Yuuji HIDAKA

IPC: F02M37/14 ,  F02M37/22 ,  F02D41/00 ,  F02D41/30 ,  F02M37/10 ,  G01N27/22 ,  G01N33/28

CPC classification number: F02M37/14 ,  F02D19/084 ,  F02D19/087 ,  F02D41/0025 ,  F02D41/3082 ,  F02D2200/0611 ,  F02M37/10 ,  F02M37/22 ,  F02M37/44 ,  F02M2037/085 ,  G01N27/22 ,  G01N33/2852

Abstract: A fuel pump has a pump function of sucking fuel in a fuel tank and discharging fuel, and a detection function of detecting a capacitance correlated to a concentration of alcohol in fuel in the fuel tank. The fuel pump includes a pump main body that is received in the fuel tank to perform the pump function, a housing electrode that covers the pump main body in the fuel tank, and an outside electrode that is located outside of the housing electrode in the fuel tank. A gap is formed between the outside electrode and the housing electrode to give the capacitance.

公开(公告)号：US20160265495A1

公开(公告)日：2016-09-15

申请号：US15033334

申请日：2014-10-16

Applicant: DENSO CORPORATION

Inventor： Kiyoshi NAGATA ,  Yuuichirou OOTA ,  Hiromi SAKAI

IPC: F02M37/20 ,  F04D13/06 ,  F04D29/043 ,  F02M37/22 ,  F04D29/18 ,  F04D29/70 ,  F02M37/08 ,  F04D3/00 ,  F04D29/041

CPC classification number: F02M37/20 ,  F02M37/048 ,  F02M37/08 ,  F02M37/22 ,  F04D3/005 ,  F04D5/002 ,  F04D13/06 ,  F04D29/0413 ,  F04D29/043 ,  F04D29/18 ,  F04D29/708

Abstract: A projection of a suction end cover has an outer circumferential surface serving as a sealing surface to be connected with a suction filter. A suction flow path is configured by an introduction hole in a bottomed cylindrical shape, and a connection hole. The introduction hole extends from the distal end of the projection of the suction end cover toward a pump chamber. The connection hole connects the introduction hole and the pump chamber. The introduction hole has a bottom surface that is located axially between a slide inner surface of the suction end cover and a bottom surface of a recess. The suction flow path can be increased in sectional area enough to reach a position in immediate front of the pump chamber with no change in outer diameter of a housing. By reducing fuel flow speed in the suction flow path and suppressing negative pressure in the suction flow path, generation of fuel vapor in the suction flow path can be inhibited even in a large flow rate area.

Abstract translation: 抽吸端盖的突出部具有作为与抽吸过滤器连接的密封面的外周面。 抽吸流路由有底圆筒状的导入孔和连接孔构成。 引入孔从吸入端盖的突起的远端朝向泵室延伸。 连接孔连接导入孔和泵室。 引入孔具有轴向位于吸入端盖的滑动内表面和凹部的底表面之间的底表面。 吸入流动路径可以增加到足以达到泵室的紧前面的位置的截面面积，而壳体的外径没有变化。 通过减少吸入流路中的燃料流速并且抑制吸入流路中的负压，即使在大流量区域中也可以抑制吸入流路中的燃料蒸气的产生。

公开(公告)号：US20160208747A1

公开(公告)日：2016-07-21

申请号：US14914388

申请日：2014-08-21

Applicant: DENSO CORPORATION

Inventor： Yuuji HIDAKA ,  Masaya OOTAKE ,  Kiyoshi NAGATA

IPC: F02M37/08 ,  F04D29/52 ,  F04D15/00 ,  F04D29/18 ,  F04D3/00 ,  F04D13/06

CPC classification number: F02M37/08 ,  F02D33/003 ,  F02D41/0025 ,  F02D41/3082 ,  F02D2200/0602 ,  F02D2250/02 ,  F02M37/10 ,  F02M37/20 ,  F02M2037/085 ,  F04D3/005 ,  F04D13/06 ,  F04D15/0066 ,  F04D29/181 ,  F04D29/528

Abstract: An ECU of a fuel pump executes a feedback control to drive a motor part and sets a rotation speed of an impeller to become a rotation speed corresponding to the target fuel pressure. The ECU detects whether a vapor is generated in a fuel of a pump chamber of the fuel pump, based on a fuel pressure detected by a pressure sensor. When a generation of the vapor is detected, the ECU sets a rotation speed of the impeller to be higher than the rotation speed under a normal control for a predetermined time with a result that the vapor in the pump chamber and a fuel flow channel is discharged into a vapor discharge hole. Thus, the vapor of the pump chamber is discharged from the vapor discharge hole to an outside of the fuel pump.

Abstract translation: 燃料泵的ECU执行反馈控制以驱动电动机部件并且将叶轮的转速设定为与目标燃料压力相对应的转速。 基于由压力传感器检测到的燃料压力，ECU检测在燃料泵的泵室的燃料中是否产生蒸气。 当检测到蒸汽的产生时，ECU将正常控制下的叶轮的转速设定为高于旋转速度一定时间，结果是泵室内的蒸气和燃料流路被排出 进入蒸汽排放孔。 因此，泵室的蒸气从蒸汽排出孔排出到燃料泵的外部。

公开(公告)号：US20130162098A1

公开(公告)日：2013-06-27

申请号：US13689994

申请日：2012-11-30

Applicant: DENSO CORPORATION

Inventor： Daiji FURUHASHI ,  Kiyoshi NAGATA ,  Masaya OOTAKE

IPC: H02K3/38

CPC classification number: H02K3/38 ,  H02K3/522 ,  H02K5/12 ,  H02K2203/06

Abstract: A motor part of a fuel pump is a brushless motor having a stator and a rotor. The stator has a core, a coil set and an insulator, which holds the core and the coil set in an insulated manner. The coil set has a plurality of coils wound about a tooth part and a plurality of crossing wires connecting the coils. The insulator is formed by stacking central ring parts of a plurality of stator units in an axial direction. At least one of crossing wire holder parts is formed of a combination of guide projections, which are formed on the different central ring parts. The length of the brushless motor in the axial direction can thus be shortened.

Abstract translation: 燃料泵的电动机部件是具有定子和转子的无刷电动机。 定子具有芯，线圈组和绝缘体，其以绝缘方式保持芯和线圈组。 线圈组具有围绕齿部缠绕的多个线圈和连接线圈的多条交叉线。 绝缘体通过在轴向上堆叠多个定子单元的中心环部而形成。 交叉线保持器部分中的至少一个由形成在不同中心环部分上的引导突起的组合形成。 因此可以缩短无刷电动机在轴向上的长度。

公开(公告)号：US20180257006A1

公开(公告)日：2018-09-13

申请号：US15542525

申请日：2016-01-13

Applicant: DENSO CORPORATION

Inventor： Norihiro HAYASHI ,  Shinobu OIKAWA ,  Kiyoshi NAGATA ,  Tetsuro OKAZONO

IPC: B01D29/11 ,  B01D35/02 ,  F02M37/22 ,  B01D29/00

CPC classification number: B01D29/114 ,  B01D29/0054 ,  B01D35/02 ,  B01D35/0273 ,  B01D2201/32 ,  B01D2201/60 ,  F02M37/10 ,  F02M37/22 ,  F02M37/50

Abstract: A suction filter which filters fuel inside a fuel tank of a vehicle to let a fuel pump draw filtered fuel into an inlet port includes a filter element disposed inside the fuel tank and filtering stored fuel stored in the fuel tank by allowing the stored fuel to pass through to an inner space, and a partition wall element disposed in a posture with which to divide the inner space to a first space where filtered fuel filtered at the filter element flows in and a second space where the inlet port into which the filtered fuel is drawn opens, and allowing the filtered fuel in the first space to pass through to the second space. The partition wall element is provided in a form of a partition film dividing the inner space to the first space on an upper side and the second space on a lower side.