公开(公告)号：US20140131483A1

公开(公告)日：2014-05-15

申请号：US14055352

申请日：2013-10-16

Applicant: DENSO CORPORATION

Inventor： Naofumi ADACHI

IPC: F02M61/16

CPC classification number: F02M47/027 ,  F02M2547/00 ,  F02M2547/008

Abstract: A movable plate is movably accommodated in a pressure control chamber. A fixed plate is arranged above the movable plate, so that the movable plate is brought into contact with the fixed plate. The fixed plate has a high pressure passage for supplying fuel into the pressure control chamber and a low pressure passage for discharging the fuel from the pressure control chamber. A high pressure port and a low pressure port are formed at a lower end surface of the fixed plate. A first contacting surface is formed at the lower end surface and a first groove is formed in the first contacting surface for holding a part of fuel in a plate-contacted condition.

Abstract translation: 可动板可移动地容纳在压力控制室中。 固定板设置在可动板上方，使可动板与固定板接触。 固定板具有用于向压力控制室供给燃料的高压通道和用于从压力控制室排出燃料的低压通道。 在固定板的下端面形成高压口和低压口。 第一接触表面形成在下端表面处，并且第一凹槽形成在第一接触表面中，用于将部分燃料保持在板接触状态。

公开(公告)号：US20170002782A1

公开(公告)日：2017-01-05

申请号：US15190545

申请日：2016-06-23

Applicant: DENSO CORPORATION

Inventor： Ryuichi EZAKI ,  Naofumi ADACHI

IPC: F02M61/18 ,  F02M51/06

CPC classification number: F02M47/027 ,  F02M51/0653 ,  F02M63/0077 ,  F02M2200/28

Abstract: A fuel injection valve includes a nozzle needle that opens or closes an injection hole communicating with an internal combustion engine, and a high-pressure fuel is introduced into a control room to urge the nozzle needle to close the injection hole. An orifice body includes a discharge passage through which the fuel is discharged from the control room to a low pressure portion, and an orifice-body sheet surface that is flat and surrounds a downstream end part of the discharge passage. A valve body contacts with or separates from the orifice-body sheet surface to close or open the discharge passage. A chamfered part is provided on a corner part in which the orifice-body sheet surface intersects with the discharge passage.

Abstract translation: 燃料喷射阀包括打开或关闭与内燃机连通的喷射孔的喷嘴针，高压燃料被引入到控制室中，以迫使喷嘴针关闭喷射孔。 孔本体包括排出通道，通过该排出通道燃料从控制室排出到低压部分，并且孔本体片表面平坦并且围绕排放通道的下游端部分。 阀体与孔本体片表面接触或分离，以关闭或打开排放通道。 在孔体表面与排出通路相交的角部设置倒角部。

公开(公告)号：US20180115210A1

公开(公告)日：2018-04-26

申请号：US15595146

申请日：2017-05-15

Applicant: DENSO CORPORATION

Inventor： Kazuya SASSA ,  Naofumi ADACHI ,  Shingo KITANI

IPC: H02K3/30 ,  H02K33/02 ,  H02K1/34 ,  H02K3/28

CPC classification number: H02K3/30 ,  H01F7/1638 ,  H01F2007/1676 ,  H02K1/34 ,  H02K3/28 ,  H02K33/02

Abstract: The present disclosure provides an electromagnetic actuator that drives an armature by an electromagnetic force. The electromagnetic actuator includes a stator, a coil, and an insulator. The stator is formed of a magnetic material and has a cylindrical portion. The coil is disposed outside of the stator. The coil generates a magnetic field when being energized. The insulator is disposed in a particular region of the stator facing the coil in a radial direction. The insulator extends partially along the stator in a circumferential direction and suppresses a current flowing through the stator in the circumferential direction. The stator is continuously formed entirely along the circumferential direction by the magnetic material.

公开(公告)号：US20140174405A1

公开(公告)日：2014-06-26

申请号：US14140895

申请日：2013-12-26

Applicant: DENSO CORPORATION

Inventor： Naofumi ADACHI

IPC: F02M51/06

CPC classification number: F02M51/06 ,  F02M47/027 ,  F02M55/008 ,  F02M61/12 ,  F02M63/0007 ,  F02M63/0054 ,  F02M2547/001

Abstract: A sub out-orifice and an in-orifice are respectively formed in a low pressure passage and a high pressure passage of a fixed plate. A control valve is provided at an outlet port of the low pressure passage. In a normal control, the control valve starts its control-valve opening operation when a movable plate is in contact with the fixed plate. In an interval-shortening control, the control valve starts the control-valve opening operation at an earlier timing than that in the normal control, namely during a course in which a valve body is still in its valve-body closing operation.

Abstract translation: 分别在固定板的低压通道和高压通道中形成副出口和入口。 控制阀设置在低压通道的出口处。 在正常控制中，当可动板与固定板接触时，控制阀开始其控制阀打开操作。 在间隔缩短控制中，控制阀以比正常控制更早的时间开始控制阀打开操作，即在阀体仍处于其阀体关闭操作的过程中。