公开(公告)号：US20150211460A1

公开(公告)日：2015-07-30

申请号：US14600410

申请日：2015-01-20

Applicant: DENSO CORPORATION

Inventor： Toshiaki HIJIMA ,  Fumiaki ARIKAWA ,  Motoya KANBARA ,  Yuuta HASHIMOTO ,  Atsushi UTSUNOMIYA ,  Kazufumi SERIZAWA ,  Shinya SANO

IPC: F02M61/10 ,  F02M61/18

CPC classification number: F02M61/10 ,  F02M61/18 ,  F02M61/1866 ,  F02M61/1886

Abstract: In a nozzle, in a cross section including an axis of a nozzle body, a side surface and a seat surface are both smoothly connected to an arc of a circle inscribing both the side surface and the seat surface. A part of a needle which is adjacent to a tip end side of a seat portion is a cone having a diameter reduced toward a tip end side of the cone in the axial direction. Thus, no corner is on the seat surface or the side surface, and the two surfaces form one curved surface. Since a cavitation generated in a sack chamber can be reduced, even when an injection quantity is significantly small such that an injection port does not throttle an injection flow, a flow coefficient of the injection flow is improved and a penetration of a spray of the fuel can be maintained.

Abstract translation: 在喷嘴中，在包括喷嘴体的轴线的横截面中，侧表面和座表面均平滑地连接到嵌入侧表面和座表面的圆弧。 与座部的前端侧相邻的针的一部分是沿着轴向朝锥体的前端侧减小直径的锥体。 因此，座面或侧面没有角部，两个面形成一个曲面。 由于可以减小在袋室中产生的空穴现象，所以即使喷射量非常小，使得喷射口不会阻碍喷射流动，喷射流量的流动系数也得到改善，并且喷射燃料 可以维护。

公开(公告)号：US20220377948A1

公开(公告)日：2022-11-24

申请号：US17879570

申请日：2022-08-02

Applicant: DENSO CORPORATION

Inventor： Mamoru KUWAHARA ,  Yuuta HASHIMOTO ,  Kazuya TAKEUCHI

IPC: H05K7/20

Abstract: A power converter includes a heat generator configured to generate heat through power conversion, and a case housing the heat generator. The case includes a case member that is made of resin and defines an opening, and a cooler that is made of metal and disposed to cover the opening. The cooler includes a cooling water passage for cooling the heat generator. The case member includes an upper case member that defines an upper opening to be covered by a cover member, and a lower case member that defines the opening covered by the cooler. One of the upper case member and the lower case member has an input side attachment portion to be attached to an input terminal and the other of the upper case member and the lower case member has an output side attachment portion to be attached to an output terminal.

公开(公告)号：US20150247478A1

公开(公告)日：2015-09-03

申请号：US14625939

申请日：2015-02-19

Applicant: DENSO CORPORATION

Inventor： Kazufumi SERIZAWA ,  Atsushi UTSUNOMIYA ,  Fumihiro FUJIKAKE ,  Fumiaki ARIKAWA ,  Yuuta HASHIMOTO

IPC: F02M51/06 ,  F02M61/18 ,  F02M61/04

CPC classification number: F02M51/061 ,  F02M61/04 ,  F02M61/18 ,  F02M61/1833 ,  F02M61/1846

Abstract: A fuel injector has a cylindrical nozzle body, a nozzle needle, a pressure chamber and an injection passage. The injection passage includes a first hole and a second hole. A minimum vertical distance between an outer periphery of a first nozzle hole outlet and a contact point relative to an axial center line of the first hole is defined as a vertical distance R. A minimum axial distance between the first nozzle hole outlet and the contact point relative to an axial center line of the first hole is defined as an axial distance L. An angle between the axial center line of the first nozzle hole and the outer periphery line of the fuel spray is defined as an injection angle θ. The vertical distance R, the axial distance L and the injection angle θsatisfy a formula: R/(L×tanθ)>6.0.

Abstract translation: 燃料喷射器具有圆柱形喷嘴体，喷嘴针，压力室和喷射通道。 注射通道包括第一孔和第二孔。 将第一喷嘴孔出口的外周和相对于第一孔的轴线中心线的接触点之间的最小垂直距离定义为垂直距离R.第一喷嘴孔出口与接触点之间的最小轴向距离 相对于第一孔的轴向中心线被定义为轴向距离L.将第一喷嘴孔的轴向中心线与燃料喷雾的外周线之间的角度定义为喷射角度。 垂直距离R，轴向距离L和注射角度等于满足公式：R /（L×tan＆Thetas;）> 6.0。

公开(公告)号：US20220368242A1

公开(公告)日：2022-11-17

申请号：US17878718

申请日：2022-08-01

Applicant: DENSO CORPORATION

Inventor： Tatsuya MURAKAMI ,  Yuuta HASHIMOTO

IPC: H02M7/00 ,  H02M7/5387 ,  H05K9/00

Abstract: A power converter includes a semiconductor modules, a capacitor, a housing, a shield layer and a collar member. The capacitor is electrically connected to the semiconductor modules. The housing houses at least the semiconductor modules and the capacitor. The shield layer is electrically conductive and provided on and covers at least one of inner and outer surfaces of the housing. The collar member is electrically conductive and integrated with the housing. The collar member is configured to allow a fastener to be inserted through the collar member such that the housing is fixed to a vehicle-side member via the fastener. The collar member is electrically conductively joined to the shield layer.

公开(公告)号：US20160108877A1

公开(公告)日：2016-04-21

申请号：US14865348

申请日：2015-09-25

Applicant: DENSO CORPORATION

Inventor： Yuuta HASHIMOTO ,  Fumiaki ARIKAWA ,  Kazufumi SERIZAWA

IPC: F02M61/10

CPC classification number: F02M61/10 ,  F02M61/1813 ,  F02M61/1826 ,  F02M61/1833

Abstract: A fuel injection nozzle of the present disclosure is a multi-hole type fuel injection nozzle where a plurality of injection holes are arranged along a circumferential direction about an axis of a nozzle body, and inject fuel radially outward from the axis of the nozzle body. Among two of the plurality of injection holes that are mutually adjacent along the circumferential direction, one injection hole has a larger spray angle and a shorter spray distance as compared to an other injection hole, and the other injection hole has a smaller spray angle and a longer spray distance as compared to the one injection hole. By arranging these injection holes alternately along the circumferential direction, a required inter-spray distance may be maintained and, at the same time, a space utilization ratio may be improved.

Abstract translation: 本公开的燃料喷射喷嘴是多孔型燃料喷射喷嘴，其中沿着圆周方向围绕喷嘴体的轴线布置多个喷射孔，并且从喷嘴体的轴线向外径向喷射燃料。 在沿着圆周方向相互相邻的多个喷射孔中的两个喷射孔中，与其他喷射孔相比，一个喷射孔具有较大的喷射角度和较短的喷射距离，另一个喷射孔具有较小的喷射角度和 与一个注射孔相比喷射距离更长。 通过沿圆周方向交替布置这些喷射孔，可以保持所需的喷射间距，并且同时可以提高空间利用率。

公开(公告)号：US20220394876A1

公开(公告)日：2022-12-08

申请号：US17885819

申请日：2022-08-11

Applicant: DENSO CORPORATION

Inventor： Yuuta HASHIMOTO ,  Kazuya TAKEUCHI

IPC: H05K7/20 ,  H05K7/12 ,  H02M7/48 ,  H01L23/40

Abstract: The power controller apparatus includes a plurality of parts including a heat member and a heat dissipation member. The power controller apparatus includes a housing for accommodating these plurality of parts. The power controller apparatus includes a snap fit and a thermal conductive member. The snap fit connects the heat member and the heat dissipation member. The thermal conductive member is arranged between the heat member and the heat dissipation member. The thermal conductive member includes a filler having anisotropy with respect to thermal conductivity. The filler is oriented so as to exhibit high thermal conductivity in a stacking direction between the heat member and the heat dissipation member.

公开(公告)号：US20220368241A1

公开(公告)日：2022-11-17

申请号：US17878585

申请日：2022-08-01

Applicant: DENSO CORPORATION

Inventor： Kazuya TAKEUCHI ,  Yuuta HASHIMOTO

IPC: H02M7/00 ,  H02M7/48 ,  H05K7/02 ,  H05K7/20 ,  H05K9/00

Abstract: A power converter includes semiconductor modules, a capacitor, a circuit board, a casing, a busbar and a shield layer. The capacitor is electrically connected to the semiconductor modules. The casing accommodates the circuit board, the semiconductor modules and the capacitor. The busbar has an input terminal portion, an output terminal portion and an electric pathway connecting the input terminal portion and the output terminal portion. The electric pathway is connected to at least one of electronic components including the semiconductor modules and the capacitor. The busbar has a built-in portion incorporated into the casing. The shield layer is electrically conductive and provided on an inner surface or an outer surface of the casing such that the shield layer covers the built-in portion.