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1. 发明专利

JP2012172594A Fuel injection device 有权
标题翻译：燃油喷射装置
公开(公告)号：JP2012172594A
公开(公告)日：2012-09-10
申请号：JP2011035510
申请日：2011-02-22
申请人： Nippon Soken Inc , Denso Corp , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： KATO TAKEHIKO , NISHIWAKI TOYOJI , NAGATOMO HIROAKI , IMAI KEITA , TAKENAKA HIROSHI
IPC分类号： F02M51/06
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection device capable of appropriately controlling an injection rate.SOLUTION: An annular second energizing means 90 is fixed to an end face on the side of a valve seat 20 of a movable core 60. When a coil 40 is energized and the movable core 60 is magnetically attracted to a fixed core 50, a needle valve 30 is locked to the second energizing means 90, and moved in a valve opening direction together with the movable core 60. After the needle valve 30 is abutted on a stopper 80, the movable core 60 is further moved to the side of the fixed core 50. Thus, energizing force for energizing the movable core 60 in a valve closing direction is stored in a spring 70 and the second energizing means 90. When energization to the coil 40 is stopped, by the energizing force of the spring 70 and the second energizing means 90, the movable core 60 is moved in the valve closing direction and collides with the needle valve 30. Thus, the valve closing speed of the needle valve 30 is accelerated.
摘要翻译：要解决的问题：提供能够适当地控制喷射率的燃料喷射装置。解决方案：环形第二激励装置90固定到可动芯60的阀座20侧的端面。当线圈40通电并且可动芯60被磁力吸引到固定芯50 针阀30被锁定到第二施力装置90，并与可动芯体60一起沿阀打开方向移动。在针阀30抵靠在止动件80上之后，可动芯体60进一步移动到侧面因此，用于使可动铁芯60沿关闭方向通电的通电力被存储在弹簧70和第二激励装置90中。当向线圈40通电停止时，通过弹簧的激励力 70和第二通电装置90，可动铁心60在关闭方向上移动并与针阀30碰撞。因此，针阀30的关闭速度加快。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2014218976A 燃料噴射制御装置および燃料噴射システム有权
标题翻译：燃油喷射控制装置和燃油喷射系统
公开(公告)号：JP2014218976A
公开(公告)日：2014-11-20
申请号：JP2013100300
申请日：2013-05-10
申请人：株式会社デンソー , Denso Corp
发明人： IMAI KEITA , ITO EIJI , NAGATOMO HIROAKI
IPC分类号： F02D41/20 , F02D41/34 , F02M51/06 , F02M59/36 , F02M61/14 , F02M61/18
CPC分类号： F02D41/20 , F02D41/34 , F02M51/06 , F02M59/36 , F02M61/14 , F02M61/18
摘要：【課題】噴霧粒径を小さくしつつ微少量の燃料噴射を可能にする。【解決手段】ECU(燃料噴射制御装置)は、以下の選択手段、ポンプ制御手段、および目標圧力設定手段を備える。選択手段は、弁体がフルリフト位置に達した後に閉弁作動を開始するフルリフト噴射、およびフルリフト位置に達することなく閉弁作動を開始するパーシャル噴射のいずれで噴射させるかを選択する。ポンプ制御手段S23は、インジェクタへ供給される燃料の圧力が目標圧力となるよう、高圧ポンプの作動を制御する。目標圧力設定手段S21、S22は、フルリフト噴射が選択されている時には内燃機関の運転状態に応じて目標圧力を設定し、パーシャル噴射が選択されている時には予め設定しておいた設定圧力に目標圧力を設定する。【選択図】図9
摘要翻译：要解决的问题：为了在减少雾化粒径的同时实现少量燃料喷射。解决方案：ECU（燃料喷射控制装置）包括选择装置，泵控制装置和目标压力设定装置。选择装置选择要使用的喷射，在阀元件达到完全提升位置之后开始关闭阀的全升程注入或用于启动阀关闭操作的部分喷射而不达到完全提升位置。泵控制装置S23控制高压泵的操作，使得供给到喷射器的燃料的压力达到目标压力。目标压力设定装置S21，S22在选择全升程喷射时，根据内燃机的运转状态来设定目标压力，并将目标压力设定为当选择了局部喷射时预先设定的设定压力。

3. 发明专利

JP2014092089A Fuel injection control device, and fuel injection system 有权
标题翻译：燃油喷射控制装置和燃油喷射系统
公开(公告)号：JP2014092089A
公开(公告)日：2014-05-19
申请号：JP2012243626
申请日：2012-11-05
申请人： Denso Corp , 株式会社デンソー
发明人： IMAI KEITA , ITO EIJI
IPC分类号： F02D41/20 , F02D45/00 , F02M51/00 , F02M51/06
CPC分类号： F02D41/30 , F02D41/08 , F02D41/20 , F02D2041/2006 , F02D2041/2058
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection control device capable of easily changing an increase speed of electromagnetic attraction force according to an operating state of an internal combustion engine.SOLUTION: A fuel injection control device is applied to a fuel injection valve for opening and operating a valve element by electromagnetic attraction force generated by energizing a coil, and controls a fuel injection state by controlling coil electric current. The fuel injection control device includes: increase control means for increasing the coil electric current to a first target value Ihold 1; hold control means for holding the coil electric current increased by the increase control means at the first target value Ihold 1; and changing means for changing the first target value Ihold 1 according to an operating state of the internal combustion engine. For example, the first target value Ihold 1 is changed as indicated by an arrow in a right column of Fig. 6(b). Thus the increase speed of the attraction force can be easily changed as indicated by dotted lines ΔFs, ΔFr in a right column of Fig. 6 (c).
摘要翻译：要解决的问题：提供一种燃料喷射控制装置，其能够根据内燃机的运行状态容易地改变电磁吸引力的增加速度。解决方案：燃料喷射控制装置应用于用于打开的燃料喷射阀并通过对线圈通电产生的电磁吸引力来操作阀元件，并且通过控制线圈电流来控制燃料喷射状态。燃料喷射控制装置包括：增加用于将线圈电流增加到第一目标值Ihold 1的控制装置; 保持控制装置，用于将增加控制装置的线圈电流保持在第一目标值Ihold 1; 以及根据内燃机的运转状态改变第一目标值Ihold 1的变更机构。例如，第一目标值Ihold 1如图1的右列中的箭头所示改变。图6（b）。因此，可以容易地改变吸引力的增加速度，如图3的右栏中的虚线＆Dgr; Fs，＆Dgr; Fr所示。图6（c）。

4. 发明专利

JP2012097728A Fuel injection valve 有权
标题翻译：燃油喷射阀
公开(公告)号：JP2012097728A
公开(公告)日：2012-05-24
申请号：JP2011144056
申请日：2011-06-29
申请人： Denso Corp , 株式会社デンソー
发明人： IMAI KEITA
IPC分类号： F02M51/06
CPC分类号： F02M51/0671 , F02M51/0682 , F02M51/0685 , F02M61/166 , F02M63/0075
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve capable of increasing the valve-opening speed, suppressing the secondary valve opening, and easily executing the clearance control.SOLUTION: A movable core 40 includes a through-hole 44, which receives a body 32 of a needle 30 therethrough at a center on a fixed core 60 side, and a receiving recess 45, which is annularly expanded outwardly in the radial direction from the through hole 44 in an end face 41 on the fixed core 60 side, and stores a flange part 33. A movable plate 50 is placed on the side opposite to a nozzle part 10 of the movable core 40 in an abutting manner on the movable core 40 and a needle 30. The length in the axial direction of the flange part 33 is smaller than the distance in the axial direction between the movable plate 50 and a bottom wall 452 of the receiving recess 45 in a state in which the movable core 40 is abutted on the movable plate 50. Thus, occurrence of any secondary valve opening caused by the movable core 40 pressed back by a second spring 90 can be suppressed.
摘要翻译：要解决的问题：提供一种能够提高开阀速度，抑制二次阀开度，容易执行间隙控制的燃料喷射阀。解决方案：可动芯部40包括通孔44，该通孔44在固定芯部60侧的中心处容纳穿过针体30的主体32，以及容纳凹部45，该凹部45在径向方向从固定铁芯60一侧的端面41的通孔44方向移动，并且容纳凸缘部33.可动板50以与该可动铁芯40的喷嘴部10相反的一侧的方式相对配置可动芯40和针30.凸缘部33的轴向长度小于可动板50与容纳凹部45的底壁452之间的轴向方向的距离，可动芯40抵接在可动板50上。因此，能够抑制由第二弹簧90压回的可动铁心40引起的二次阀开度的发生。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2014218977A 燃料噴射制御装置および燃料噴射システム有权
标题翻译：燃油喷射控制装置和燃油喷射系统
公开(公告)号：JP2014218977A
公开(公告)日：2014-11-20
申请号：JP2013100302
申请日：2013-05-10
申请人：株式会社デンソー , Denso Corp
发明人： IMAI KEITA , NAGATOMO HIROAKI , ITO EIJI
IPC分类号： F02D41/20 , F02D41/02 , F02D41/04 , F02M51/06 , F02M61/10 , F02M61/14 , F02M61/18
CPC分类号： F02D41/02 , F02D41/04 , F02D41/20 , F02M51/06 , F02M61/10 , F02M61/14 , F02M61/18
摘要：【課題】微少量の燃料を噴射する場合であっても、燃料噴霧の微粒化を十分に促進できるようにする。【解決手段】ECU(燃料噴射制御装置)は、以下の選択手段S10、S11、およびポンプ制御手段を備える。選択手段は、弁体がフルリフト位置に達した後に閉弁作動を開始するフルリフト噴射、および弁体がフルリフト位置に達することなく閉弁作動を開始するパーシャル噴射のいずれで燃料を噴射させるかを選択する。ポンプ制御手段は、インジェクタへ供給される燃料の圧力が目標圧力となるよう、高圧ポンプの作動を制御する。そして、燃料噴射システムがとりうる目標圧力の最大値Pmaxでパーシャル噴射したときの最大噴射量をパーシャル最大噴射量Qplmaxと呼ぶ場合において、選択手段は、要求噴射量Qreqがパーシャル最大噴射量Qplmax以下である場合にパーシャル噴射を選択する。【選択図】図8
摘要翻译：要解决的问题：即使在注入少量燃料时也能充分促进燃料喷雾的雾化。解决方案：ECU（燃料喷射控制装置）包括选择装置S10，S11和泵控制装置。选择装置选择用于燃料喷射的喷射，在阀元件到达完全提升位置之后的起动阀关闭操作的全升程注入或用于启动阀关闭操作的部分喷射，而不使阀元件达到完全提升位置。泵控制装置控制高压泵的操作，使得供给到喷射器的燃料的压力达到目标压力。当在燃料喷射系统允许的目标压力的最大值Pmax处的局部喷射期间的最大喷射量被定义为部分最大喷射量Qplmax时，如果需要的喷射装置Qreq是部分最大喷射量Qplmax或更低，选择装置选择部分注入。

6. 发明专利

JP2014092088A Fuel injection control device, and fuel injection system 有权
标题翻译：燃油喷射控制装置和燃油喷射系统
公开(公告)号：JP2014092088A
公开(公告)日：2014-05-19
申请号：JP2012243624
申请日：2012-11-05
申请人： Denso Corp , 株式会社デンソー
发明人： IMAI KEITA
IPC分类号： F02D41/34 , F02D41/20 , F02M51/00 , F02M51/06
CPC分类号： F02D41/20 , F02D2041/2017 , F02D2041/2041 , F02D2041/2044 , F02D2041/2058 , F02D2041/2065
摘要： PROBLEM TO BE SOLVED: To improve robustness in control of a temperature characteristic in controlling an injection state.SOLUTION: A fuel injection control device includes: increase control means S11, S14 for applying voltage to a coil so that coil electric current is increased to a first target value Ihold1; and hold control means S11, S14, S15, S17 for applying voltage to the coil so that the coil electric current increased by the increase control means, is held at the first target value Ihold1. The first target value Ihold 1 is determined to be a value to make static attraction force Fb be a necessary valve opening force Fa or more, when a maximum value of the electromagnetic attraction force necessary for starting a valve opening operation of a valve element is called as the necessary valve opening force Fa, and the electromagnetic attraction force saturated by allowing the coil electric current of the first target value Ihold1 to continuously flow, is called as the static attraction force Fb.
摘要翻译：要解决的问题：提高控制喷射状态下的温度特性控制的鲁棒性。解决方案：一种燃料喷射控制装置，包括：增加用于向线圈施加电压的控制装置S11，S14，使得线圈电流增加到第一目标值Ihold1; 并且保持用于向线圈施加电压的控制装置S11，S14，S15，S17，使得由增加控制装置增加的线圈电流保持在第一目标值Ihold1。当第一目标值Ihold 1被确定为使得静电吸引力Fb成为所需的阀打开力Fa或更大时的值，当阀元件的开阀操作所需的电磁吸引力的最大值被称为作为必要的开阀力Fa和通过使第一目标值Ihold1的线圈电流饱和的电磁吸引力被连续地流动，被称为静力吸引力Fb。

7. 发明专利

JP2011157955A Air blast injector 审中-公开
标题翻译： AIR BLAST INJECTOR
公开(公告)号：JP2011157955A
公开(公告)日：2011-08-18
申请号：JP2010165887
申请日：2010-07-23
申请人： Denso Corp , 株式会社デンソー
发明人： IMAI KEITA , OHATA KEIGO
IPC分类号： F02M67/12 , F02M67/02
CPC分类号： F02M51/0682 , F02M61/042 , F02M61/08 , F02M67/12
摘要： PROBLEM TO BE SOLVED: To provide an air blast injector achieving atomization in the initial time of injection, promoting mixing property of pressurized air and a liquid fuel by improving the shearing ability, and improved in the sucking speed by raising the sucking ability. SOLUTION: A second needle 9 is provided with a center hole 11, to which the liquid fuel is to be supplied, and an air flow passage 12, in which the pressurized air flows, is provided between the second needle 9 and a second nozzle body 8, and a venturi part 13 is provided on the way of the air flow passage 12. A pore 15 as a fuel outlet for sucking the liquid fuel is opened in a region, in which the flow speed exceeds Mach 1 (the sound speed) after passing through the venturi part 13. The liquid fuel sucked through the pore 15 is raised in the shearing ability by the pressurized air of the flow speed, which exceeds Mach 1, to promote the mixing property with the pressurized air, and the fuel atomized in the initial time of injection is injected into a cylinder from a second injection hole 7. A region, in which the pore 15 as the fuel outlet is provided, is raised in the sucking ability by the negative pressure to be generated with enlargement of the diameter. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供在注射初期时实现雾化的鼓风喷射器，通过提高剪切能力来提高加压空气和液体燃料的混合性能，并且通过提高吸入能力来提高吸入速度。解决方案：第二针9设置有中心孔11，液体燃料将被供应到中心孔11，并且在第二针9和第二针9之间设置有加压空气流动的空气流动通道12 第二喷嘴体8和文氏管部分13设置在空气流路12的路面上。作为用于吸入液体燃料的燃料出口的孔15在流速超过马赫数1的区域中打开通过文丘里管13的声速）。通过孔15吸入的液体燃料以超过马赫数1的流速的加压空气以剪切能力升高，以促进与加压空气的混合性能，以及在初始喷射时被雾化的燃料从第二喷射孔7喷射到气缸中。在其中设置作为燃料出口的孔15的区域以吸附能力升高，直径增大版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2014141902A Fuel injection valve 有权
标题翻译：燃油喷射阀
公开(公告)号：JP2014141902A
公开(公告)日：2014-08-07
申请号：JP2013009502
申请日：2013-01-22
申请人： Denso Corp , 株式会社デンソー
发明人： NAGATOMO HIROAKI , ITO EIJI , IMAI KEITA
IPC分类号： F02M51/06
摘要： PROBLEM TO BE SOLVED: To stabilize a fuel injection amount.SOLUTION: The fuel injection valve comprises: a valve member 40 for opening/closing an injection hole 18 of a valve housing 10 by reciprocal movement to an opening/closing valve side; a stationary core 20 fixed to the valve housing 10; a movable core 30 provided movably forward and backward together with the valve member 40, and moving to an opening valve side by generating magnetic force between it and the stationary core 20; a closing valve spring 50 held by the stationary core 20, and pressure-driving the valve member 40 to a closing valve side; and a bush 70 fixed to the stationary core 30, and slide-supporting the valve member 40 from an outer peripheral side. The stationary core 20 has a holding hole 26 for holding the closing valve spring 50 fitted inside on the opening valve side, and the bush 70 has a slide hole 72 inside which the valve member 40 slides nearer the valve closing side than the holding hole 26, and has a loose insertion hole 74 inside which the closing valve spring 50 is inserted because of larger inside diameter than that of both of the holding hole 26 and the slide hole 72 between the holding hole 26 and the slide hole 72.
摘要翻译：要解决的问题：稳定燃料喷射量。解决方案：燃料喷射阀包括：阀构件40，用于通过往开关阀侧往复运动来打开/关闭阀壳体10的喷射孔18; 固定在阀壳10上的固定芯20; 与阀构件40一起可动地前后移动的可动铁心30，通过在其与固定铁芯20之间产生磁力而向开阀侧移动; 由固定铁心20保持的关闭阀弹簧50，并将阀构件40压力驱动到关闭阀侧; 以及固定在固定铁心30上的衬套70，从外周侧滑动支承阀体40。固定芯20具有用于保持安装在开阀侧内侧的关闭阀弹簧50的保持孔26，并且衬套70具有滑动孔72，在该滑动孔72中，阀构件40比保持孔26更靠近阀关闭侧滑动并且具有松动的插入孔74，由于与保持孔26和滑动孔72之间的保持孔26和滑动孔72的内径相比较大的内径，封闭阀弹簧50被插入其内。

9. 发明专利

JP2014125972A Fuel injection valve 有权
标题翻译：燃油喷射阀
公开(公告)号：JP2014125972A
公开(公告)日：2014-07-07
申请号：JP2012283500
申请日：2012-12-26
申请人： Denso Corp , 株式会社デンソー
发明人： IMAI KEITA , ITO EIJI , NAGATOMO HIROAKI
IPC分类号： F02M51/06
CPC分类号： F02M51/0614 , F02M51/0685 , F02M2200/08
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve with a stable fuel injection amount.SOLUTION: A fuel injection valve comprises: a valve housing 10 having an injection hole 18; a valve member 40 for opening/closing the injection hole 18 by a reciprocal movement to a valve opening side and a valve closing side in an axial direction; a stationary core 20 fixed to the valve housing 10; a movable core 30 provided movably forward and backward together with the valve member 40, and moving to the valve opening side by a magnetic force generated between it and the stationary core 20; a magnetic valve closing spring 50 held by the stationary core 20 and pressurizing and driving the valve member 40 to the valve closing side; and a solenoid part 60 fixed on the outer peripheral side of the stationary core 20 and generating a magnetic force by guiding a magnetic flux to the cores 20, 30 according to energization. Under this constitution, the stationary core 20 has a holding hole 26 for holding the valve closing spring 50 fitted inside it on the valve opening side. The solenoid part 60 has a magnetic yoke 63 for reducing passage of the magnetic flux in a radial direction at a specific portion S in a circumferential direction at a position overlaid on an entire area of the holding hole 26 in the axial direction.
摘要翻译：要解决的问题：提供具有稳定的燃料喷射量的燃料喷射阀。解决方案：燃料喷射阀包括：具有喷射孔18的阀壳体10; 阀构件40，用于通过向阀开口侧的往复运动和沿轴向的阀关闭侧打开/关闭喷射孔18; 固定在阀壳10上的固定芯20; 与阀构件40一起前后移动的可动铁芯30，并且通过在其与固定铁芯20之间产生的磁力而向阀开口侧移动; 由固定铁芯20保持的电磁阀关闭弹簧50，并将阀构件40加压并驱动到关闭侧; 以及固定在固定铁心20的外周侧的螺线管部60，通过将励磁磁力引导到铁芯20,30而产生磁力。在这种构造下，固定芯20具有用于保持安装在阀开启侧的闭锁弹簧50的保持孔26。螺线管部60具有用于在保持孔26的轴向整个区域上重叠的位置沿圆周方向减小磁通在径向方向上的通路的磁轭63。

10. 发明专利

JP2011163242A Fuel injection valve 有权
标题翻译：燃油喷射阀
公开(公告)号：JP2011163242A
公开(公告)日：2011-08-25
申请号：JP2010028321
申请日：2010-02-11
申请人： Denso Corp , 株式会社デンソー
发明人： OHATA KEIGO , IMAI KEITA
IPC分类号： F02M51/06
CPC分类号： F02M2200/304
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve enabling to suppress valve opening bounce and to eliminate drag force due to the negative pressure operation of a movable core when separated, for improved separating responsiveness, at the same time. SOLUTION: In the fuel injection valve, a region which is held between a fixed core and the movable core in the axial direction of a housing and held between the housing and a stopper part in the radial direction of the housing is formed as a damper chamber whose capacity is changed with the existence of fuel. Herein, a first communication passage and a second communication passage are provided, the former narrowed down to the damper chamber for communicating the damper chamber with a fuel passage, and the latter for closing off the damper chamber from the fuel passage when the movable core is located between a first position and a second position out of first, second and third positions where the movable core is located at a maximum distance from the fixed core, closely located at a predetermined distance therefrom and abuts thereon, respectively, and for communicating the damper chamber with the fuel passage when the movable core is located between the second position and the third position. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种燃料喷射阀，其能够抑制阀开度反弹并且消除由于分离时的可动铁芯的负压操作引起的阻力，同时提高分离响应性。解决方案：在燃料喷射阀中，沿着壳体的轴向保持在固定铁芯和可动铁芯之间并且保持在壳体和壳体的径向方向上的止动部分之间的区域形成为其容量随着燃料的存在而改变的阻尼室。在这里，设置有第一连通通道和第二连通通道，前者变窄到阻尼室，用于将阻尼室与燃料通道连通，后者用于当可动铁芯为位于第一，第二和第三位置之间的第一位置和第二位置之间，其中可动铁芯位于与固定铁芯最远的距离处，分别紧密地定位在预定距离处并与之连通在可动芯位于第二位置和第三位置之间时，具有燃料通道。版权所有（C）2011，JPO＆INPIT

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