公开(公告)号：US12261544B2

公开(公告)日：2025-03-25

申请号：US17878585

申请日：2022-08-01

Applicant: DENSO CORPORATION

Inventor： Kazuya Takeuchi ,  Yuuta Hashimoto

IPC: H02M7/48 ,  H02M7/00 ,  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.

公开(公告)号：US09328706B2

公开(公告)日：2016-05-03

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: B05B1/30 ,  F02M51/06 ,  F02M61/04 ,  F02M61/18

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 θ satisfy a formula: R/(L×tan θ)>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，轴距L和注射角度; 满足公式：R /（L×tan＆Thetas;）> 6.0。

公开(公告)号：US12155318B2

公开(公告)日：2024-11-26

申请号：US17878718

申请日：2022-08-01

Applicant: DENSO CORPORATION

Inventor： Tatsuya Murakami ,  Yuuta Hashimoto

IPC: H05K7/20 ,  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：US09562503B2

公开(公告)日：2017-02-07

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: B05B1/30 ,  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。