公开(公告)号：JP2007239735A

公开(公告)日：2007-09-20

申请号：JP2006195550

申请日：2006-07-18

Applicant: Denso Corp ,  株式会社デンソー

Inventor： SEKIJIMA HITOSHI

IPC: F02M61/10 ,  F02M47/00 ,  F02M51/06

CPC classification number: F02M45/086 ,  F02M45/12 ,  F02M47/027 ,  F02M2200/46

Abstract: PROBLEM TO BE SOLVED: To remove a deposited deposit, by preventing the deposit from depositing on an inner wall and the outer opening peripheral edge of a second nozzle port 26 unopened when an injection quantity is little in ordinary injection control, in a variable nozzle port type nozzle 1. SOLUTION: In this nozzle 1, a first fuel flow passage 16 and a second fuel flow passage 28 always communicate with each other regardless of opening-closing of the first and second nozzle ports 14 and 26. Thus, since fuel is always introduced to the tip side of a second needle 10, energizing force can be always applied in the opening direction to the second needle 10. Thus, since the second needle 10 can be independently lifted, the fuel is injected from the second nozzle port 26 even when an injection quantity is little, and its deposit is prevented, and the deposit can be removed. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了通过防止在普通喷射控制中的喷射量很少的情况下在第一喷嘴端口26的内壁和第二喷嘴端口26的外部开口周边边缘上的沉积物沉积物而去除沉积的沉积物， 可变喷嘴口型喷嘴1.解决方案：在该喷嘴1中，第一燃料流路16和第二燃料流路28总是彼此连通，而与第一和第二喷嘴口14和26的打开关闭无关。 因此，由于总是向第二针10的前端侧引入燃料，所以能够始终向第二针10向打开方向施力，因此能够独立地提升第二针10， 即使在喷射量少的情况下也能够从第二喷嘴口26进行喷射，也可以防止其沉积，能够除去沉积物。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006152924A

公开(公告)日：2006-06-15

申请号：JP2004344804

申请日：2004-11-29

Applicant: Denso Corp ,  株式会社デンソー

Inventor： SEKIJIMA HITOSHI

IPC: F02M61/10

Abstract: PROBLEM TO BE SOLVED: To seat nozzle needles 20, 30 at approximately the same time in completion of fuel injection to stop fuel from nozzle holes 13a, 13b at approximately the same time, in a fuel injection valve having two nozzle needles 20, 30.
SOLUTION: The fuel injection valve comprises: the first nozzle needle 20 housed in a valve body 10 to be reciprocable to open/close the first nozzle hole 13a formed in the valve body; a second nozzle needle 30 housed in the first nozzle needle 20 to be reciprocable to open/close the second nozzle hole 13b formed in the valve body 10; and an adjusting means adjusting a driving force of the first nozzle needle 20 and the second nozzle needle 30 for closing the first nozzle hole 13a and the second nozzle hole 13b at approximately the same time.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了在完成燃料喷射的同时大致同时安装喷嘴针20,30，在同时具有两个喷嘴针20的燃料喷射阀中同时从喷嘴孔13a，13b停止燃料 解决方案：燃料喷射阀包括：容纳在阀体10中以能够往复运动以打开/关闭形成在阀体中的第一喷嘴孔13a的第一喷嘴针20; 容纳在第一喷嘴针20中以能够往复运动以打开/关闭形成在阀体10中的第二喷嘴孔13b的第二喷嘴针30; 以及调节装置，其调节用于大致同时关闭第一喷嘴孔13a和第二喷嘴孔13b的第一喷嘴针20和第二喷嘴针30的驱动力。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2000018129A

公开(公告)日：2000-01-18

申请号：JP18384298

申请日：1998-06-30

Applicant: DENSO CORP ,  TOYOTA MOTOR CORP

Inventor： SEKIJIMA HITOSHI ,  KOJIMA AKIKAZU ,  ITO TOSHIHIKO ,  SOTOZONO YUICHI

IPC: F02M59/06 ,  F02M59/08 ,  F02M59/10

Abstract: PROBLEM TO BE SOLVED: To provide a high pressure pump that never causes damage nor seizure to a driving portion even under high pressure. SOLUTION: A press feed portion is shaped into a complete roundness such that a first inner peripheral surface 41 formed at the inner periphery of a drive shaft 1 is decentered from the rotational shaft center of the drive shaft 1. A first cam ring 42 is provided in contact with the wall surface of the decentered first inner peripheral surface 41 so as to be slidably movable thereon. Shoes 46, 47 are provided on the inside of the first cam ring 42. Plungers 44, 45 are slidably fitted in slide holes 48, 49, respectively in the direction toward the rotational center of the drive shaft. The inner peripheral wall of the first cam ring 42 has a flat straight portion around the section in contact with the shoes 46, 47 in the circumferential direction, and the rest of portions are arc-like curved. The shoes 46, 47 has flat surfaces in contact with the first cam ring 42 and the plungers 44, 45. They are slidably movable on the flat inner peripheral wall of the first dam ring 42.

公开(公告)号：JP2010001817A

公开(公告)日：2010-01-07

申请号：JP2008161728

申请日：2008-06-20

Applicant: Denso Corp ,  株式会社デンソー

Inventor： SEKIJIMA HITOSHI

IPC: F01N3/08 ,  B01D53/86 ,  B01D53/94

Abstract: PROBLEM TO BE SOLVED: To provide a urea water injection device whose ejection hole clogging arising in association with the segregation of urea is reduced and whose secure injection of urea water is ensured. SOLUTION: An injection device 11 is a so-called outward opening valve which separates from its valve seat 34 by the movement of a sealed portion 39 of a needle 32 toward the apical end of the needle 32. When the sealed portion 39 of the needle 32 separates from the valve seat 34, urea crystals segregated near an ejection hole 33 are broken and ripped from a body 31 by the movement of the needle 32. Consequently, the urea crystals attached to the body 31 are removed from the body 31 by the movement of the needle 32 to reduce an accumulating amount of on the periphery of the injection hole 33. As a result, the clogging of the ejection hole 33 arising in association with the segregation of urea is reduced, and thereby the secure injection of the urea water can be ensured. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种尿素水注入装置，其中与尿素偏析相关联地产生的喷射孔阻塞减少，并且确保了尿素水的牢固注入。 解决方案：注射装置11是所谓的向外开启阀，其通过针32的密封部分39朝向针32的顶端的移动而与其阀座34分离。当密封部分39 针32与阀座34分离，在排出孔33附近分离的尿素晶体被针32的运动从主体31断裂并撕开。因此，附着在主体31上的尿素晶体从主体 通过针32的移动减少喷射孔33的周围的累积量。结果，与尿素偏析相关联地产生的喷射孔33的堵塞减少，从而确保注射 的尿素水可以保证。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2008180101A

公开(公告)日：2008-08-07

申请号：JP2007012440

申请日：2007-01-23

Applicant: Denso Corp ,  株式会社デンソー

Inventor： SEKIJIMA HITOSHI ,  MOTOE YUSUKE

IPC: F01N3/08 ,  B01D53/94 ,  F02D45/00

CPC classification number: F01N3/208 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/146 ,  F01N2900/14 ,  Y02T10/24

Abstract: PROBLEM TO BE SOLVED: To prevent degradation of purification efficiency of exhaust gas by suppressing variation of the way reducing agent spreads into the exhaust gas even when an exhaust gas flow velocity varies, in a reducing agent supply device 1.
SOLUTION: According to this reducing agent supply device 1, an addition valve 7 is attached to an exhaust pipe 6 and directly injects a reducing agent discharged from a supply pump 5 into the exhaust pipe 6, and an ECU 8 controls discharge pressure of the supply pump 5 according to an exhaust gas flow velocity. Thereby, when the exhaust gas flow velocity is large, reducing agent spray can be radially expanded against the flow of the exhaust gas by increasing penetration force of the reducing agent spray by increasing the pressure of the injected reducing agent. On the contrary, when the exhaust gas flow velocity is small, rapid radial expansion of the reducing agent spray can be suppressed by reducing the penetration force of the reducing agent spray by reducing the pressure of the injected reducing agent. As a result, degradation of purification efficiency of the exhaust gas can be prevented by suppressing variation of the way the reducing agent spreads into the exhaust gas is suppressed even if the exhaust gas flow velocity changes.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了防止在还原剂供给装置1中，即使废气流速变化，也可以通过抑制还原剂扩散到废气中的变化来防止排气净化效率的降低。 解决方案：根据该还原剂供给装置1，在排气管6上安装有加法阀7，并将从供给泵5排出的还原剂直接喷射到排气管6中，ECU8控制供给的排出压力 泵5根据废气流速。 因此，当废气流速大时，通过增加注入的还原剂的压力，通过增加还原剂喷雾的穿透力，可以相对于排气的流动而径向膨胀还原剂喷射。 相反，当废气流速小时，可以通过降低注入的还原剂的压力来降低还原剂喷雾的穿透力来抑制还原剂喷雾的快速径向膨胀。 结果，即使废气流速变化，也可以抑制还原剂向废气扩散的方式的变化，可以防止排气净化效率的劣化。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008138609A

公开(公告)日：2008-06-19

申请号：JP2006326153

申请日：2006-12-01

Applicant: Denso Corp ,  株式会社デンソー

Inventor： SEKIJIMA HITOSHI

IPC: F02M61/10 ,  F02M61/18 ,  F02M67/02

Abstract: PROBLEM TO BE SOLVED: To provide a fuel injection nozzle capable of suppressing accumulation of a deposit on a nozzle hole formed on a nozzle body or a circumference of the nozzle hole. SOLUTION: This fuel injection nozzle 1 includes: the nozzle body 2 having outer periphery-side nozzle holes 22, inner periphery-side nozzle holes 23, and a fuel passage 33 communicating with the outer periphery-side nozzle hole 22 and the inner periphery-side nozzle hole 23; an outer periphery-side needle 6 housed in the nozzle body 2, and opening/closing the outer periphery-side nozzle holes 22; and an inner periphery-side needle 7 housed in the outer periphery-side needle 6, and opening/closing the inner periphery-side nozzle holes 23. The fuel injection nozzle has an air passage 75 communicating with the fuel passage 33 between a seating position of the inner periphery-side needle 7 and the inner periphery-side nozzle hole 23. The fuel injection nozzle is characterized in that the air passage 75 has an opening/closing means shutting off the air passage 75 when the inner periphery-side needle 7 opens the inner periphery-side nozzle hole 23 to execute fuel injection from the inner periphery-side nozzle hole 23, and opens the air passage 75 when the inner periphery-side needle 7 closes the inner periphery-side nozzle hole 23 to stop fuel injection from the inner periphery-side nozzle hole 23. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够抑制沉积物在形成于喷嘴体或喷嘴孔周边的喷嘴孔上积聚的燃料喷嘴。 解决方案：该燃料喷射喷嘴1包括：具有外周侧喷嘴孔22，内周侧喷嘴孔23和与外周侧喷嘴孔22连通的燃料通路33的喷嘴体2和 内周侧喷嘴孔23; 容纳在喷嘴体2中的外周侧针6，并且开闭外周侧喷嘴孔22; 以及容纳在外周侧针6中的内周侧针7，并且开闭内周侧喷嘴孔23.燃料喷射喷嘴具有与燃料通路33连通的空气通路75，座椅位置 内周侧针7和内周侧喷嘴孔23.燃料喷射喷嘴的特征在于，当内周侧针7的内周侧针7的空气通路75具有开闭装置 打开内周侧喷嘴孔23，从内周侧喷孔23进行燃料喷射，当内周侧针7闭合内周侧喷孔23时，打开空气通路75，停止燃料喷射 来自内周侧喷嘴孔23.（C）2008，JPO＆INPIT

公开(公告)号：JP2007107513A

公开(公告)日：2007-04-26

申请号：JP2006147348

申请日：2006-05-26

Applicant: Denso Corp ,  株式会社デンソー

Inventor： SEKIJIMA HITOSHI ,  KUROYANAGI MASATOSHI ,  DATE KENJI

IPC: F02M47/00

CPC classification number: F02M47/025 ,  F02M61/16 ,  F02M63/0029

Abstract: PROBLEM TO BE SOLVED: To provide a fuel injection valve capable of inhibiting drop of valve close characteristics of a control valve performing pressure control of a pressure control chamber. SOLUTION: A housing 1 is provided with a nozzle chamber 31 having an injection hole 28 formed thereon and pressurized fuel supplied therein, a nozzle valve control chamber 32 applying control pressure on the nozzle valve 60 opening and closing the injection hole 28, an intermediate valve chamber 41 storing an intermediate valve 70 switching communication and shut-off between the nozzle valve control chamber 32 and a low pressure source, an intermediate valve control chamber 42 applying control pressure on the intermediate valve 70, a control valve chamber 51 storing a control valve 81 driven by an actuator 80 and switching communication and shut-off between the intermediate valve control chamber 42 and the low pressure source, a first discharge passages 20, 22 discharging fuel in the nozzle valve control chamber 32 to the low pressure source, and second discharge passages 24, 26 discharging fuel in the intermediate valve control chamber 42 to the low pressure source. The first discharge passages 20, 22 and the second discharge passages 24, 26 are formed independently in an axial direction in a cross section of the actuator 80. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够抑制执行压力控制室的压力控制的控制阀的阀关闭特性的下降的燃料喷射阀。 解决方案：壳体1设置有喷嘴室31，喷嘴室31具有形成在其上的喷射孔28和供应的加压燃料;喷嘴阀控制室32，对打开和关闭喷射孔28的喷嘴阀60施加控制压力， 存储中间阀70的中间阀室41，其在喷嘴阀控制室32和低压源之间切换连通和切断，中间阀控制室42对中间阀70施加控制压力;控制阀室51， 由致动器80驱动并在中间阀控制室42和低压源之间切换连通和切断的控制阀81，将喷嘴阀控制室32中的燃料排放到低压源的第一排出通道20,22 以及将中间阀控制室42中的燃料排放到低压源的第二排出通道24,26。 第一排出通道20,22和第二排出通道24,26在致动器80的横截面中沿轴向独立地形成。版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006207516A

公开(公告)日：2006-08-10

申请号：JP2005022498

申请日：2005-01-31

Applicant: Denso Corp ,  株式会社デンソー

Inventor： SEKIJIMA HITOSHI

IPC: F02M61/10 ,  F02M47/00 ,  F02M47/02

Abstract: PROBLEM TO BE SOLVED: To stop fuel injection from each injection hole 13a, 13b roughly simultaneously by seating each nozzle needle 20, 30 roughly simultaneously at a time of completion of fuel injection in a fuel injection valve 1 provided with the two nozzle needles 20, 30 and operating the nozzle needles 20, 30 by regulating pressure in a pressure control chamber 50.
SOLUTION: This valve is provided with a regulating means reducing part of area of an anti-injection hole side end surface of the second nozzle needle 30 receiving fuel pressure in the pressure control chamber 50 and contributing to seating action and regulating force in an injection hole direction acting on the second nozzle needle 30 in an early stage of seating action from a setting condition of the second nozzle needle 30 by separating action of the second nozzle needle 30 from the seated condition in the pressure control chamber 50.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：通过在设置有两个喷嘴的燃料喷射阀1中在燃料喷射完成时大致同时安置每个喷嘴针20,30，大致同时停止从每个喷射孔13a，13b喷射燃料 针20,30，并且通过调节压力控制室50中的压力来操作喷嘴针20,30。解决方案：该阀设置有调节装置，减小了喷射针20,30的防喷射孔侧端面的一部分面积 第二喷嘴针30在压力控制室50中接收燃料压力，并且在从第二喷嘴针30的设定状态起作用的早期阶段中有助于在作用在第二喷嘴针30上的喷射孔方向上的就座作用和调节力 通过将第二喷嘴针30的作用从压力控制室50中的就座状态分离出来。（C）版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006057622A

公开(公告)日：2006-03-02

申请号：JP2004291107

申请日：2004-10-04

Applicant: Denso Corp ,  Nippon Soken Inc ,  株式会社デンソー ,  株式会社日本自動車部品総合研究所

Inventor： NOMURA SHIGEO ,  OKAJIMA MASAHIRO ,  KOIE KAZUTOSHI ,  SEKIJIMA HITOSHI ,  MIYOSHI SHINJI ,  GOTO MORIYASU ,  TOMITA HIROKUNI

IPC: F02M59/46 ,  F02M61/10

Abstract: PROBLEM TO BE SOLVED: To provide a constitution capable of preventing fuel leakage from a first nozzle hole by securely sealing upstream and downstream sides of the first nozzle hole at the time of closing of needles, in a two-needle type fuel injection nozzle in which the outer needle is lifted prior to the inner needle to open the first nozzle hole and then the inner needle is lifted to open a second nozzle hole.
SOLUTION: The fuel injection nozzle is provided with the outer needle 2 involved in injection start and injection completion from the first nozzle hole 6 and the inner needle 3 involved in injection start and injection completion from the second nozzle hole 7. A small diameter opening part side of a belleville spring 4 is fixed to the lower end face of the outer needle 2 around the perimeter, and the belleville spring 4 is held in the state that it is pressed between the lower end face of the outer needle 2 and a second seat face 10, when the outer needle 2 is closed. At this time, since the periphery of the large diameter opening part of the belleville spring 4 is closely contacted with the second seat face 10, the belleville spring 4 liquid-tightly blocks off a space between a clearance C secured between the outer needle 2 and the inner needle 3 and the first nozzle hole 6. This prevents fuel flowed out from the clearance C from being flowed out to outside of the belleville spring 4. Therefore, fuel leakage from the first nozzle hole 6 can be prevented.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种能够通过在关闭针时可靠地密封第一喷嘴孔的上游侧和下游侧来防止燃料从第一喷嘴孔泄漏的结构，在双针型燃料喷射 喷嘴，其中外针在内针之前被提起以打开第一喷嘴孔，然后提升内针以打开第二喷嘴孔。 解决方案：燃料喷射喷嘴从第二喷嘴孔7的第一喷嘴孔6和涉及注射开始和喷射完成的内针3设置有涉及注射开始和注射完成的外针2。 圆锥形弹簧4的直径开口部分侧围绕外周固定到外针2的下端面，并且保持壳体弹簧4处于外针2的下端面和 第二座面10，当外针2关闭时。 此时，由于贝氏弹簧4的大直径开口部的周缘与第二座面10紧密接触，所以，贝氏弹簧4液密地堵住固定在外针2和 内针3和第一喷嘴孔6.这防止从间隙C流出的燃料流出到贝氏弹簧4的外部。因此，可以防止从第一喷嘴孔6泄漏燃料。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006057471A

公开(公告)日：2006-03-02

申请号：JP2004237626

申请日：2004-08-17

Applicant: Denso Corp ,  株式会社デンソー

Inventor： SEKIJIMA HITOSHI

IPC: F02M61/10 ,  F02M47/00 ,  F02M47/02 ,  F02M51/00

Abstract: PROBLEM TO BE SOLVED: To simultaneously stop fuel from each injection hole at a time of completion of fuel injection in a fuel injection valve provided with two nozzle needles.
SOLUTION: This valve is provided with the first nozzle needle 50 reciprocatably stored in a valve body 20 and opening and closing a first injection hole 30 formed on the valve body 20, and the second nozzle needle 60 reciprocatably stored in the first nozzle needle 50 and opening and closing a second injection hole 40 formed on the valve body 20, and an energizing force adjustment means having energizing force acting on the first nozzle needle 50 and the second nozzle needle 60 adjusted to simultaneously blocking the first injection hole 30 and the second injection hole 40.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：在具有两个喷嘴针的燃料喷射阀中，在燃料喷射完成时同时停止来自每个喷射孔的燃料。 解决方案：该阀设置有可往复运动地存储在阀体20中的第一喷嘴针50，并且打开和关闭形成在阀体20上的第一喷射孔30，并且第二喷嘴针60可往复运动地存储在第一喷嘴 针50，打开和关闭形成在阀体20上的第二喷射孔40，以及具有作用在第一喷嘴针50和第二喷嘴针60上的作用力同时阻挡第一喷射孔30的激励力调节装置，以及 第二注入孔40.版权所有（C）2006，JPO＆NCIPI