公开(公告)号：US10107291B2

公开(公告)日：2018-10-23

申请号：US14912485

申请日：2014-09-03

Applicant: DENSO CORPORATION

Inventor： Masaya Ootake ,  Tetsuo Hayakawa ,  Kiyoshi Nagata

IPC: F04D13/06 ,  F04D3/00 ,  F04D29/52 ,  F02M37/08 ,  F04D5/00

Abstract: Partitioned chambers of an electric connector, which receive connection terminals electrically connected to windings of a stator, are communicated with an outside of the electric connector through primary communication holes. The primary communication holes are formed to direct at least one of perpendicular directions, each of which is perpendicular to a corresponding one of opening planes of outside openings of the primary communication holes, toward a downside when a central axis of a fuel pump is tilted relative to a vertical direction. In this way, a foreign object, which is accumulated in any of the portioned chambers, can be outputted to the outside through the primary communication hole even when the fuel pump is tilted in any direction.

公开(公告)号：US10851778B2

公开(公告)日：2020-12-01

申请号：US15780059

申请日：2016-12-01

Applicant: DENSO CORPORATION

Inventor： Daiji Furuhashi ,  Hiromi Sakai ,  Tetsuo Hayakawa

IPC: F02M37/08 ,  F04C11/00 ,  F04C15/00 ,  F04C2/10 ,  F04C13/00 ,  F04C15/06

Abstract: A casing of a housing of a fuel pump has a bearing surface that rotatably supports an inner gear in an axial direction from a motor side while a plain bearing extends through the bearing surface. The plain bearing includes: an inner-peripheral-side step that is stepped by increasing an inner diameter of the plain bearing on a counter-motor side of the inner-peripheral-side step in the axial direction; and an outer-peripheral-side step that is stepped by increasing an outer diameter of the plain bearing on the motor side of the outer-peripheral-side step at a position that is on the motor side of the bearing surface in the axial direction.

公开(公告)号：USD771712S1

公开(公告)日：2016-11-15

申请号：US29526217

申请日：2015-05-07

Applicant: DENSO CORPORATION

Designer： Masaya Ootake ,  Yuuji Hidaka ,  Kiyoshi Nagata ,  Tetsuo Hayakawa

公开(公告)号：US10148150B2

公开(公告)日：2018-12-04

申请号：US14912529

申请日：2014-09-03

Applicant: DENSO CORPORATION

Inventor： Kiyoshi Nagata ,  Tetsuo Hayakawa ,  Masaya Ootake

IPC: F04D13/06 ,  H02K5/22 ,  F04D3/00 ,  F04D29/18 ,  F04D29/52 ,  F02M37/08 ,  F04D5/00 ,  F02M37/10

Abstract: A cover end of a fuel pump is formed by resin molding and has a tubular portion, which holds a bearing that is placed along a central axis of the tubular portion and rotatably supports one end portion of a shaft of a motor arrangement. Furthermore, three terminals, which supply three-phase electric power received from an outside to windings on a phase-by-phase basis, are insert molded in the cover end. In the cover end, a first transverse passage, which is formed between the first terminal and the second terminal in a circumferential direction, and a second transverse passage, which is formed between the second terminal and the third terminal in the circumferential direction, are configured into a form of V-shape, which diverges in a radially outer direction, in a view taken in an axial direction.

公开(公告)号：US09369022B2

公开(公告)日：2016-06-14

申请号：US13890459

申请日：2013-05-09

Applicant: DENSO CORPORATION

Inventor： Tetsuo Hayakawa ,  Masaya Ootake ,  Kiyoshi Nagata

IPC: H02K3/46 ,  H02K11/00 ,  H02K3/32 ,  H02K13/04 ,  H02K3/38 ,  H02K3/34 ,  H02K5/22 ,  H02K3/28 ,  H02K3/52

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：US10047752B2

公开(公告)日：2018-08-14

申请号：US14912544

申请日：2014-09-03

Applicant: DENSO CORPORATION

Inventor： Tetsuo Hayakawa ,  Hiromi Sakai ,  Kiyoshi Nagata

IPC: F04D13/06 ,  F04D29/52 ,  F02M37/10 ,  H02K5/12 ,  H02K15/02 ,  H02K7/14 ,  H02K3/44 ,  H02K5/08 ,  F02M37/08

Abstract: A fuel chamber is formed between a pump arrangement and a motor arrangement, and outer flow passages are formed between a stator of the motor arrangement and a housing. Fuel, which is discharged from a discharge port of the pump arrangement, is outputted to an outside of the housing from a fuel discharge conduit that is formed on a side of the motor arrangement, which is opposite from the pump arrangement, after passing through the motor arrangement. At a time of performing electroplating on the stator, electrode contact portions, to which electrodes can contact, is formed in an outer wall of the stator, which forms the outer flow passages.

公开(公告)号：USD770537S1

公开(公告)日：2016-11-01

申请号：US29526222

申请日：2015-05-07

Applicant: DENSO CORPORATION

Designer： Masaya Ootake ,  Yuuji Hidaka ,  Kiyoshi Nagata ,  Tetsuo Hayakawa

公开(公告)号：US11441522B2

公开(公告)日：2022-09-13

申请号：US16061070

申请日：2016-11-25

Applicant: DENSO CORPORATION

Inventor： Tetsuo Hayakawa ,  Hiromi Sakai ,  Daiji Furuhashi

IPC: F02M37/02 ,  F02M37/44 ,  F02M37/10 ,  F02M37/50 ,  F04C2/10 ,  F02M37/04 ,  F04C13/00 ,  B01D35/027 ,  F04C15/06 ,  F02D41/30

Abstract: A fuel pump unit includes a suction filter and a fuel pump. The fuel pump includes: a rotatable shaft placed along a rotational axis; a rotor portion that rotates in response to rotation of the rotatable shaft; a suction hole portion, through which the fuel is suctioned into an inside of a rotor receiving chamber; and an outer peripheral wall that surrounds the suction hole portion. The suction filter includes: a filter element that filters the fuel and conducts the filtered fuel into an inside space; and a columnar hole portion having an inner peripheral wall, while the outer peripheral wall and the inner peripheral wall are fitted with each other, so that the columnar hole portion communicates between the inside space and the suction hole portion. The columnar hole portion is placed such that the rotational axis extends on an inner side of the inner peripheral wall.

公开(公告)号：US09476394B2

公开(公告)日：2016-10-25

申请号：US14291275

申请日：2014-05-30

Applicant: DENSO CORPORATION

Inventor： Tetsuo Hayakawa ,  Eiji Miyazaki

IPC: F02M37/08 ,  F02M37/10 ,  H02K3/34 ,  H02K3/46 ,  H02K7/14 ,  F02M69/02 ,  H02K3/18 ,  H02K3/52

CPC classification number: F02M69/02 ,  F02M37/08 ,  F02M2037/082 ,  F02M2037/085 ,  H02K3/18 ,  H02K3/46 ,  H02K3/52 ,  H02K3/522 ,  H02K2203/12

Abstract: A motor includes a stator with a bobbin. The bobbin has a lower end winding portion, a head part retainer portion that retains a head part of a winding, and a control portion disposed between the lower end winding portion and the head part retainer portion. A head part retainer surface formed on a pump part side of the head part retainer portion and an end face formed on a pump part side of the control portion are positioned on the same plane and on a pump part side relative to a winding retainer surface that is formed on a pump part side of the lower end winding portion. Thus, when the winding is wound in layers onto the winding retainer surface of the bobbin, collapsing of a middle part of the winding onto the head part of the winding is prevented.

Abstract translation: 电动机包括具有线轴的定子。 线轴具有下端卷绕部，保持卷绕头部的头部保持部和设置在下端卷绕部和头部保持部之间的控制部。 形成在头部保持部的泵部侧的头部保持器表面和形成在控制部的泵部侧的端面相对于卷绕保持器表面位于同一平面和泵部侧 形成在下端卷绕部的泵部侧。 因此，当绕组被卷绕到绕线管的绕线保持器表面上时，可以防止绕组的中间部分塌陷到绕组的头部上。