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1. 发明专利

JP2006214292A Fuel injection valve 审中-公开
标题翻译：燃油喷射阀
公开(公告)号：JP2006214292A
公开(公告)日：2006-08-17
申请号：JP2005025307
申请日：2005-02-01
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIFUJI MASANORI , ISHIKAWA TORU , SEKINE ATSUSHI , OKAMOTO YOSHIO
IPC分类号： F02M61/18 , F02M51/06 , F02M51/08
CPC分类号： F02M61/162 , F02M61/1853
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve, improving the atomizing performance of a fuel injection valve and adjusting the atomizing shape to realize desirable atomization.
SOLUTION: This fuel injection valve includes: a valve element 6 for controlling the opening and closing of a fuel passage to inject and supply fuel through a fuel passage and stop the injection supply of fuel; a seat part to which the tip of the valve element closely adheres to stop the injection supply of fuel; and a plurality of injection holes for injecting fuel supplied to the downstream of the valve element 6 and the seat part through the fuel passage. The seat part to which the tip of the valve element closely adheres to stop the injection supply of fuel is constructed by a nozzle plate 1 having a valve seat 2 opposite to the tip of the valve element and a fuel introduction hole 3 reduced in diameter by the valve seat. A fuel passage forming plate is formed like a recessed part on the downstream fuel passage side of the fuel introduction hole of the nozzle plate and provided with a plurality of fuel injection holes disposed concentrically at the recessed bottom part. The plurality of injection holes in the fuel passage forming plate are formed at a desired angle of inclination in the recessed bottom surface and in the board thickness direction.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种燃料喷射阀，提高燃料喷射阀的雾化性能并调节雾化形状以实现所需的雾化。解决方案：该燃料喷射阀包括：阀元件6，用于控制燃料通道的打开和关闭，以通过燃料通道喷射和供应燃料并停止燃料的喷射供应; 阀元件的尖端紧密粘合到其上以停止燃料喷射供给的座部; 以及多个喷射孔，用于通过燃料通道喷射供应到阀元件6和座部的下游的燃料。阀元件的尖端紧贴以停止燃料喷射供应的阀座构件由具有与阀元件的尖端相对的阀座2的喷嘴板1和直径减小的燃料引入孔3构成阀座。燃料通道形成板在喷嘴板的燃料导入孔的下游燃料通路侧形成为凹部，并且在凹部的底部同心设置有多个燃料喷射孔。燃料通道形成板中的多个喷射孔在凹陷的底面和板厚度方向上以期望的倾斜角度形成。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2006177244A Fuel injection valve and fuel injection system 有权
标题翻译：燃油喷射阀和燃油喷射系统
公开(公告)号：JP2006177244A
公开(公告)日：2006-07-06
申请号：JP2004371370
申请日：2004-12-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OKAMOTO YOSHIO , NAGANO MASAMI , ABE MOTOYUKI , MIFUJI MASANORI , ISHIKAWA TORU
IPC分类号： F02M61/18 , F02M51/06 , F02M51/08
摘要： PROBLEM TO BE SOLVED: To improve atomization performance of injection fuel by a fuel injection valve and materialize atomization performance by a simple structure and at low cost.
SOLUTION: The fuel injection valve is provided with a valve element capable of opening and closing for performing fuel injection and injection stop, a nozzle plate 1 including a valve seat which the valve element abuts on and separate from, an orifice plate 25 fixed on the nozzle plate and including a plurality of fuel injection holes. The nozzle plate consists of a fuel introduction hole 3 of which diameter is reduced from the valve seat, a plurality of recess fuel passages 26 extending to a valve diameter direction in a downstream of the fuel introduction hole and connected to the fuel injection holes, and a projection part 4 having a curved surface separating the recess fuel passages 26. The orifice plate forms a recess bottom surface part 28 having a plurality of the fuel injection holes arranged in a valve diameter direction, the recess bottom surface part 28 has a curved shape equivalent to the curved surface of the projection part 4 of the nozzle plate, and fuel injection form the fuel injection hole 29 forms horseshoe shape jet.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过燃料喷射阀提高喷射燃料的雾化性能，并通过简单的结构和低成本实现雾化性能。解决方案：燃料喷射阀设置有能够打开和关闭以执行燃料喷射和喷射停止的阀元件，喷嘴板1，其包括阀座抵接并分离孔板25 固定在喷嘴板上并且包括多个燃料喷射孔。喷嘴板由直径从阀座减小的燃料导入孔3，在燃料导入孔的下游侧延伸到阀直径方向并与燃料喷射孔连接的多个凹部燃料通路26，具有分开凹部燃料通路26的弯曲表面的突出部分4.孔板形成具有沿阀直径方向布置的多个燃料喷射孔的凹陷底面部分28，凹部底表面部分28具有弯曲形状相当于喷嘴板的突出部分4的弯曲表面，并且燃料喷射孔29的燃料喷射形成马蹄形射流。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2003065181A Fuel piping device and port injection system using same 审中-公开
标题翻译：燃油管路装置和端口喷射系统
公开(公告)号：JP2003065181A
公开(公告)日：2003-03-05
申请号：JP2001252411
申请日：2001-08-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIFUJI MASANORI
IPC分类号： F02M55/02 , F02M61/14
摘要： PROBLEM TO BE SOLVED: To provide a fuel piping device and a port injection system using the same capable of improving a direct hit rate of fuel atomization against an intake valve, and mounting a fuel injection valve. SOLUTION: The fuel injection valve 110 is housed in a holder part 120. An insertion part 122 to be inserted in an engine is provided on a tip end of the holder part 120. Fuel piping 130 is mounted on the holder part 120. A center axis of the holder part 120 is arranged by inclining to an outer diameter center axis of the insertion part 122.
摘要翻译：要解决的问题：提供一种能够提高对进气门的燃料雾化的直接命中率的燃料管道装置和使用该燃料管道装置的端口喷射系统，以及安装燃料喷射阀。解决方案：燃料喷射阀110容纳在保持器部分120中。插入发动机的插入部分122设置在保持器部分120的末端上。燃料管道130安装在保持器部分120上。中心保持器部分120的轴线通过倾斜到插入部分122的外径中心轴线而布置。

4. 发明专利

JP2007077808A Fuel injection valve 审中-公开
标题翻译：燃油喷射阀
公开(公告)号：JP2007077808A
公开(公告)日：2007-03-29
申请号：JP2005263166
申请日：2005-09-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIFUJI MASANORI , ISHIKAWA TORU , MAEKAWA NORIYUKI , SEKINE ATSUSHI
IPC分类号： F02M51/06
摘要： PROBLEM TO BE SOLVED: To solve a problem that a tip of a magnetostrictive element is chipped by repetition of highly-responsive operation, a magnetostriction amount is decreased by deteriorated fuel or the magnetostrictive element is broken at the worst, causing a very large drop in flow rate of a fuel injection valve. SOLUTION: Preload can be dispersed over an end of the magnetostrictive element by disposing a preload dispersion member, which is formed with a spherical surface on one side and with a flat surface on the other side, between the magnetostrictive element and a member applying the preload. The above problem is solved by avoiding stress concentration by the preload on a part of the magnetostrictive element. It is necessary to prevent the magnetostriction amount of the magnetostrictive element from being decreased by the deteriorated fuel and prevent the magnetostrictive element from being broken at the worst, and therefore, the deteriorated fuel is prevented from eroding a surface of the magnetostrictive element by coating the surface of the magnetostrictive element. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题为了解决通过高响应性操作的重复使磁致伸缩元件的尖端发生切屑的问题，通过劣化的燃料或磁致伸缩元件在最坏的情况下破坏磁致伸缩量，导致非常燃油喷射阀的流量大幅下降。解决方案：预载荷可以分散在磁致伸缩元件的端部上，通过在磁致伸缩元件和构件之间设置一个预制载荷分散构件，该预载分散构件在一侧形成球形表面，另一侧形成平坦表面应用预载。上述问题是通过避免由磁致伸缩元件的一部分上的预载引起的应力集中来解决的。有必要防止磁致伸缩元件的磁致伸缩量被劣化的燃料减少，并且防止磁致伸缩元件在最坏的情况下被破坏，因此，通过涂覆磁致伸缩元件的表面来防止恶化的燃料侵蚀磁致伸缩元件的表面。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2005121034A Fuel injection valve 有权
标题翻译：燃油喷射阀
公开(公告)号：JP2005121034A
公开(公告)日：2005-05-12
申请号：JP2005015907
申请日：2005-01-24
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： MIFUJI MASANORI
IPC分类号： F02M51/06 , F02M51/08 , F02M61/18
摘要： PROBLEM TO BE SOLVED: To facilitate the machining of a nozzle, increase mechanical strength, reduce the number of parts, facilitate assembly, and provide excellent emission by forming linear spraying configuration even if a fuel is injected in multiple directions.
SOLUTION: A semi-spherical or conical recessed part 11C is formed at the center of the bottom part of the nozzle 11 of an injector 1, and a fuel injection hole 22 and a valve seat 12 are formed at the recessed part 11C. The wall thickness of the recessed part 11C is formed thinner on a portion where injection holes 22 are formed than on a portion corresponding to the valve seat 12. The ratio S/D of an interval S between the fuel injection holes 22 to the diameter D of the injection holes is 0.5 or less, and the ratio L/D of the length L of the fuel injection holes to the diameter D of the fuel injection holes is 1 or more.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使在多个方向上喷射燃料，为了便于加工喷嘴，增加机械强度，减少部件数量，便于组装，并且通过形成线性喷涂构造提供优异的排放。解决方案：在喷射器1的喷嘴11的底部的中心处形成半球形或锥形的凹部11C，并且在凹部11C处形成燃料喷射孔22和阀座12 。凹部11C的壁厚在形成有喷射孔22的部分上比在与阀座12对应的部分形成得更薄。燃料喷射孔22与直径D之间的间隔S的比率S / D 的喷射孔的直径为0.5以下，燃料喷射孔的长度L与燃料喷射孔的直径D的比L / D为1以上。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2004353488A Fuel injection valve and piezoelectric element driving type fuel injection valve 审中-公开
公开(公告)号：JP2004353488A
公开(公告)日：2004-12-16
申请号：JP2003149598
申请日：2003-05-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIFUJI MASANORI
IPC分类号： F02M51/06 , F02M51/08 , F02M61/08 , F16K31/02 , H01L41/083 , H01L41/09
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve and a piezoelectric element driving type fuel injection valve manufacturable at low cost by increasing assemblage and enabling a reduction in wear by eliminating the effects of thermal deformation thereon.
SOLUTION: At least one intermediate element having a thermal expansion deformed amount which becomes 0 (zero) when added to the thermal expansion deformed amount of a piezoelectric element 2 is installed between an valve element 4 opening and closing a fuel injection hole 18 sliding movably forward and backward on the inside of a nozzle part 5 and the piezoelectric element 2 extended and retracted by an electric action. Also, when two or more intermediate elements are used, the intermediate elements are formed of a same material. In addition, when two or more intermediate elements are used, the contact faces of the intermediate elements are formed to be brought into spherical surface contact with each other.
COPYRIGHT: (C)2005,JPO&NCIPI

7. 发明专利

JP2004232463A Fuel injection device 审中-公开
公开(公告)号：JP2004232463A
公开(公告)日：2004-08-19
申请号：JP2003018176
申请日：2003-01-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIFUJI MASANORI
IPC分类号： F02M51/06 , F02M61/08 , F02M61/12
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection device without requiring sealing of liquid around a piezoelectric element easily assemblable, producing a fuel injection valve at low cost, and to implement optimal flow characteristics in the long term by reduction of abrasion.
SOLUTION: Even in direct acting type of the same displacement of elements, for eliminating the need for sealing the liquid around the piezoelectric element, a member fixed to the piezoelectric element and a member fixed to a valve part are interposed between the piezoelectric element and a valve element to form one of contact parts of the members in a spherical shape. Therefore, the assembly becomes more easily, and the fuel injection valve is produced at low cost. Further, abrasion is reduced and unstable movement of the valve is suppressed, to implement optimal flow characteristics in the long term.
COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2007040300A Fuel injection valve 有权
标题翻译：燃油喷射阀
公开(公告)号：JP2007040300A
公开(公告)日：2007-02-15
申请号：JP2006184552
申请日：2006-07-04
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIFUJI MASANORI , MAEKAWA NORIYUKI , ISHIKAWA TORU
IPC分类号： F02M51/06 , F02M51/00 , F02M61/10 , F02M61/16
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve capable of more precisely controlling an optimum supply flow amount with the opening/closing of the fuel injection port of an injection nozzle.
SOLUTION: During deenergizing a solenoid 10, the force of a spring 17 is applied to a first valve rod 2 via a second valve rod 8 and the valve rod 2 abuts on a valve seat to close an orifice 32. When the solenoid 10 is energized, a magnetostrictive element 9 elongates, the second valve rod 8 is lifted up against the force of the spring 17, and the first valve rod 2 is lifted up to abut on a stopper 6 while following the movement of the second valve rod 8 with the force of the spring 4 and moved apart from the valve seat to open the orifice 32 (open the injection nozzle). The magnetostriction amount of the magnetostrictive element 9 is controlled so that the lift amount of the second valve rod 8 from an initial position during valve opening control of the injection nozzle 1 is greater than the lift amount of the first valve rod 2 to a position restricted by the stopper 6.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过喷射喷嘴的燃料喷射口的打开/关闭更精确地控制最佳供给流量的燃料喷射阀。解决方案：在断电螺线管10期间，弹簧17的力通过第二阀杆8施加到第一阀杆2，阀杆2邻接阀座以关闭孔32.当螺线管 10被激励，磁致伸缩元件9伸长，第二阀杆8抵抗弹簧17的力被提升，并且第一阀杆2被提升以抵靠止动件6，同时跟随第二阀杆 8与弹簧4的力并且移动离开阀座以打开孔32（打开注射喷嘴）。控制磁致伸缩元件9的磁致伸缩量，使得第二阀杆8从喷射喷嘴1的开阀控制期间的初始位置的提升量大于第一阀杆2的提升量到限制位置（C）2007，JPO＆INPIT

9. 发明专利

JP2006144749A Fuel injection valve 审中-公开
标题翻译：燃油喷射阀
公开(公告)号：JP2006144749A
公开(公告)日：2006-06-08
申请号：JP2004339183
申请日：2004-11-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ABE MOTOYUKI , OKAMOTO YOSHIO , MAEKAWA NORIYUKI , MIFUJI MASANORI , SEKINE ATSUSHI , ISHIKAWA TORU
IPC分类号： F02M61/18 , F02M51/06
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve which is favorably adaptable to various kinds of an internal combustion engine.
SOLUTION: In the fuel injection valve 10, a columnar nozzle piece 14 is inserted in a nozzle hole 12 so as to provide fuel injection paths 16a, 16b, 16c which are formed separately in the peripheral direction. In the fuel injection path 16a, either one of the cross-sectional area and the cross-sectional shape is made different from those of the fuel-injection paths 16b, 16c. Thus, spray conditions such as spread and penetration of the fuel spray can be controlled.
COPYRIGHT: (C)2006,JPO&NCIPI

10. 发明专利

JP2006336577A Fuel injection valve and internal combustion engine using it 有权
标题翻译：燃油喷射阀和内燃机使用它
公开(公告)号：JP2006336577A
公开(公告)日：2006-12-14
申请号：JP2005164225
申请日：2005-06-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OKAMOTO YOSHIO , ABE MOTOYUKI , MIFUJI MASANORI , NAGANO MASAMI
IPC分类号： F02M61/18 , F02M69/04
摘要： PROBLEM TO BE SOLVED: To improve atomization performance of fuel injected by a fuel injection valve, to realize a fuel passage for generating swirl stream by a simple configuration, and to reduce manufacturing cost.
SOLUTION: This fuel injection valve is provided with a valve element 9 openable and closable to inject fuel and stop injection, a nozzle body 13 having a valve seat coming into contact with and leaving the valve element 9, and an injection plate 16 fixed to a lower end part of the nozzle body 13 and having a plurality of fuel injection holes 24. The nozzle body 13 has a fuel introducing hole 21with a diameter reduced smaller than a seat diameter of the valve seat. The injection plate 16 is composed of a fuel enlarged passage chamber 22 with a diameter enlarged larger than a diameter of the fuel introducing hole 21, a plurality of recessed fuel passages 23 substantially circumscribed about the fuel enlarged passage 22 chamber and extending in the radial direction of valve, and the fuel injection holes 24 provided on outlet end sides of these recessed fuel passages 23. Atomization is promoted and fuel is distributed into each fuel injection hole 24 with high precision by turning fuel efficiently and injecting fuel through the fuel injection holes 24.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提高由燃料喷射阀喷射的燃料的雾化性能，通过简单的结构实现用于产生涡流的燃料通道，并降低制造成本。解决方案：该燃料喷射阀设置有可开启和关闭以喷射燃料和停止喷射的阀元件9，具有与阀元件9接触并离开阀元件9的阀座的喷嘴体13和注射板16 固定在喷嘴主体13的下端部并且具有多个燃料喷射孔24.喷嘴体13具有直径小于阀座的座直径的燃料导入孔21。注射板16由直径大于燃料导入孔21的直径的燃料扩大通路室22构成，多个凹部燃料通路23基本上围绕燃料扩大通路22室并沿径向延伸的阀，以及设置在这些凹入的燃料通路23的出口端侧的燃料喷射孔24.通过有效地转动燃料并且通过燃料喷射孔24喷射燃料，促进雾化并且以高精度将燃料分配到每个燃料喷射孔24中。版权所有（C）2007，JPO＆INPIT

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