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11. 发明专利

JP2009270554A Fuel injection apparatus 有权
标题翻译：燃油喷射装置
公开(公告)号：JP2009270554A
公开(公告)日：2009-11-19
申请号：JP2008124427
申请日：2008-05-12
申请人： Denso Corp , 株式会社デンソー
发明人： MATSUMOTO TEPPEI , MOCHIZUKI KOICHI
IPC分类号： F02M47/00 , F02M51/00 , F02M51/06 , F02M61/10 , F02M61/16 , F02M61/20
CPC分类号： F02M51/0603 , F02M61/042 , F02M61/16 , F02M2200/704 , F02M2200/706 , F02M2200/707
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection apparatus in which energy loss is decreased. SOLUTION: A piston 80 which is reciprocally slidable in the inside of a piston guide cylinder 70 in the axial direction includes a cavity 84 at a piezo driver 90 side. When the piezo driver 90 is energized, the chip end 961 of a convex part 96 of a pressing member 95 presses a bottom wall 83 forming the cavity 84 of the piston 80 by the driving power. With the pressing by piston 80, when the fuel pressure in a pressure control chamber 201 is increased through a pressurizing chamber 202, and a communication pathway 203, a needle 30 moves to the direction to open a valve against a second compressive coil spring 61. Since the piston 80 includes the cavity 84, a length of a sliding part axial direction is secured and movable mass is decreased as well. Therefore, any fuel leak from the sliding part of the piston 80 and the cylinder 70 can be prevented, and an inertia resistance generated at the piston 80 can be decreased. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供能量损失降低的燃料喷射装置。解决方案：在活塞引导筒70的内部可往复滑动的活塞80在压电驱动器90侧包括空腔84。当压电驱动器90通电时，按压部件95的凸部96的芯片端部961通过驱动力推压形成活塞80的空腔84的底壁83。通过活塞80的按压，当压力控制室201中的燃料压力通过加压室202和连通路径203增加时，针30移动到朝向第二压缩螺旋弹簧61打开阀的方向。由于活塞80包括空腔84，因此确保了滑动部分轴向的长度，并且可移动的质量也减小。因此，可以防止从活塞80和气缸70的滑动部分泄漏的任何燃料，并且可以减小在活塞80处产生的惯性阻力。版权所有（C）2010，JPO＆INPIT

12. 发明专利

JP2007016769A Fuel injection valve 有权
标题翻译：燃油喷射阀
公开(公告)号：JP2007016769A
公开(公告)日：2007-01-25
申请号：JP2006064535
申请日：2006-03-09
申请人： Denso Corp , 株式会社デンソー
发明人： MOCHIZUKI KOICHI , SAITO KIMITAKA , NAGATOMO HIROAKI
IPC分类号： F02M51/06 , F02M61/10 , F16K31/06
CPC分类号： F02M51/061 , F02M51/0678 , F02M61/20
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve capable of reducing driving force of an electromagnetic driving part for opening the valve.
SOLUTION: This fuel injection valve has valve bodies 12 and 16 having a valve seat 14, valve elements 30 and 50 seating on and separating from the valve seat, a nozzle port 21 injecting fuel, and the electromagnetic driving parts 60 and 70 generating the driving force for electromagnetically attracting the valve elements. One end side surrounds and holds at least a partial area 53 of an anti-nozzle port side end surface part 51 on the anti-nozzle port side of the valve elements, and the other end part side has a holding member 63 surrounding and holding a predetermined surface area Dc of a fixed position holding part 64 held in a predetermined position regardless of the movement of the valve elements, and the holding member 63 expandably connects mutually opposed end surfaces of the anti-nozzle port side end surface part and the fixed position holding part. An inside area 63s surrounded between the partial area on one end side and the predetermined surface area on the other end side, is cut off so as not to receive influence of hydraulic pressure of the fuel around the inside area.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够减少用于打开阀门的电磁驱动部件的驱动力的燃料喷射阀。解决方案：该燃料喷射阀具有阀体12和16，阀体12和16具有阀座14，阀座30和50，阀座30和50与阀座分离，喷射口21喷射燃料，电磁驱动部分60和70 产生用于电磁吸引阀元件的驱动力。一端侧在阀元件的防喷嘴侧侧包围并保持防喷嘴侧端面部51的至少一部分区域53，另一端部侧具有保持构件63，保持构件63包围并保持固定位置保持部64的预定表面积Dc与阀元件的移动无关地保持在预定位置，并且保持构件63可伸缩地连接防喷嘴端侧表面部分和固定位置的相对的端面持有部分。在一端侧的局部区域与另一端侧的预定表面区域之间包围的内部区域63s被切断，不会受到内部区域周围的燃料的液压的影响。版权所有（C）2007，JPO＆INPIT

13. 发明专利

JP2006170023A Fuel injection valve 有权
标题翻译：燃油喷射阀
公开(公告)号：JP2006170023A
公开(公告)日：2006-06-29
申请号：JP2004361955
申请日：2004-12-14
申请人： Denso Corp , 株式会社デンソー
发明人： NAGATOMO HIROAKI , MOCHIZUKI KOICHI , SAITO KIMITAKA
IPC分类号： F02M51/06 , F02M51/08 , F02M61/08 , F02M61/10 , F02M61/16 , F02M61/18
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve capable of maintaining a valve closing state of a valve member, without increasing attraction force of an electromagnetic driving part for opening the valve, even when receiving influence of cylinder internal pressure of an internal combustion engine.
SOLUTION: This fuel injection valve 2 has a valve body 12 having a valve seat 14 on an inner peripheral surface for forming a fuel passage, a needle 30 for seating on and separating from the valve seat 14, a nozzle port 21 arranged on the downstream side of the valve seat 14 and injecting fuel supplied from the fuel passage, a movable core 50 for moving in the seating direction and the separating direction by cooperating with the needle 30, a fixed core 54 for magnetically attracting the movable core 50, a coil 60 for generating electromagnetic force for magnetically attracting the movable core 50 to the fixed core 54, and an electromagnetic driving part having a spring 58 for energizing the movable core in the seating direction; and seats the needle 30 on the valve seat 14 by energizing force of the spring 58 by disappearance of the electromagnetic force. The whole peripheral edge of the nozzle port 21 is seated on the needle 30.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供能够维持阀构件的阀关闭状态的燃料喷射阀，而不增加用于打开阀的电磁驱动部的吸引力，即使当接收到阀的内部压力的影响时内燃机。解决方案：该燃料喷射阀2具有在用于形成燃料通路的内周面上具有阀座14的阀体12，用于安置和离开阀座14的针30，喷嘴端口21布置在阀座14的下游侧喷射从燃料通路供给的燃料，通过与针30配合而沿着座椅方向和分离方向移动的可动铁心50，用于磁吸引可动铁心50的固定铁心54 用于产生用于将可动铁芯50磁吸引到固定铁芯54的电磁线圈的线圈60，以及具有弹簧58的电磁驱动部件，该弹簧58用于在可动铁芯的安装方向上通电; 并且通过消除电磁力而使针座30通过弹簧58的力的作用将针30安置在阀座14上。喷嘴口21的整个周缘安置在针30上。版权所有（C）2006，JPO＆NCIPI

14. 发明专利

JP2006029145A Fuel injection valve 审中-公开
标题翻译：燃油喷射阀
公开(公告)号：JP2006029145A
公开(公告)日：2006-02-02
申请号：JP2004206358
申请日：2004-07-13
申请人： Denso Corp , 株式会社デンソー
发明人： MOCHIZUKI KOICHI
IPC分类号： F02M51/06 , F02M61/18
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve securing accuracy of adjusting an fuel injection amount even if bounce occurs.
SOLUTION: The fuel injection valve 10 comprises: a valve body 12 having a valve seat 14 disposed to inner peripheral faces 13, 15 which forms a fuel passage; a valve member 30 seated on or separated from the valve seat 14; and a fuel injection port 21 disposed downstream of the valve seat 14 to inject fuel supplied from the fuel passage. The fuel injection valve 10 shuts off or allows injection of fuel from the injection port 21, by moving the valve member 30 in a seating direction or in a separating direction. The valve member 30 is provided with a sliding shaft part 33 slidable with the inner peripheral face 15 and having a cutout part 33a formed in its outer peripheral face opposed to the inner peripheral face 15 to allow the fuel flow. An area closing the cutout 33a and an area opening the cutout 33a when the valve member 30 is moved from the valve seat 14 in the separating direction, that is, when the fuel injection valve 10 is opened, are provided.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使发生反弹，也提供一种确保燃料喷射量调节精度的燃油喷射阀。解决方案：燃料喷射阀10包括：阀体12，其具有设置在形成燃料通道的内周面13,15上的阀座14; 安装在阀座14上或与阀座14分离的阀构件30; 以及燃料喷射口21，其设置在阀座14的下游，以喷射从燃料通道供应的燃料。燃料喷射阀10通过沿着阀座方向或分离方向移动阀构件30来关闭或允许从喷射口21喷射燃料。阀构件30设置有滑动轴部33，其可与内周面15滑动，并且在与内周面15相对的外周面形成有切口部33a，以允许燃料流动。当阀构件30沿分离方向从阀座14移动时，即当燃料喷射阀10打开时，关闭切口33a的区域和打开切口33a的区域。版权所有（C）2006，JPO＆NCIPI

15. 发明专利

JP2004332543A Fuel injection valve 有权
公开(公告)号：JP2004332543A
公开(公告)日：2004-11-25
申请号：JP2003124895
申请日：2003-04-30
申请人： Denso Corp , 株式会社デンソー
发明人： OTA NOBUO , MOCHIZUKI KOICHI , IWAMOTO MASUAKI , OKAMOTO ATSUYA
IPC分类号： F02M61/18 , F02M51/06 , F02M51/08
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve, allowing easy formation of fuel spray in a desired shape and accelerating further atomization.
SOLUTION: A plurality of nozzle holes 60 are arranged in a nozzle hole plate 50. The nozzle holes passing through the nozzle hole plate 50 each have an inlet side opening portion 61 into which fuel flows and an outlet side opening portion 62 from which the fuel is jetted. The outlet side opening portion 62 is formed flat and rectangular with a major axis a
L2 and a minor axis a
S2 . The fuel flowing from the inlet side opening portion 61 is therefore jetted membranously from the outlet side opening portion 62. Thus, liquid-membrane separation is promoted and the atomization of the fuel is accelerated. Because the plurality of nozzle holes 60 are arranged in the nozzle hole plate 50, a large shape of fuel spray formed by a combination of fuel spray jetted from each of the nozzle holes is easily controlled.
COPYRIGHT: (C)2005,JPO&NCIPI

16. 发明专利

JP2012047167A Air blast injector 审中-公开
标题翻译： AIR BLAST INJECTOR
公开(公告)号：JP2012047167A
公开(公告)日：2012-03-08
申请号：JP2010234928
申请日：2010-10-19
申请人： Denso Corp , 株式会社デンソー
发明人： IWAMURO MAKOTO , MOCHIZUKI KOICHI , NAGATOMO HIROAKI , OHATA KEIGO
IPC分类号： F02M67/12 , F02M61/08 , F02M67/02
CPC分类号： F02M67/12
摘要： PROBLEM TO BE SOLVED: To provide an air blast injector that can improve the atomization of fuel by suppressing the mixture nonuniformity of liquid fuel and pressurized air.SOLUTION: A second needle 9 includes: a center hole 14 extending vertically; a fuel reservoir 15 composed of an annular space; a radial direction communication passage 16 for guiding fuel to the fuel reservoir 15 from the center hole 14; and a jet hole 17 composed of minute slits for leading fuel in the fuel reservoir 15 to the entire circumference of a venturi portion 12. Thereby, liquid fuel can be supplied to all pressurized air passing the venturi portion 12, and the mixture nonuniformity of the liquid fuel and air can be suppressed. As a result, the atomization of the liquid fuel jetted from a second injection hole 7 while being mixed in the pressurized air can be improved.
摘要翻译：要解决的问题：提供一种可以通过抑制液体燃料和加压空气的混合不均匀性来改善燃料雾化的鼓风喷射器。解决方案：第二针9包括：垂直延伸的中心孔14; 由环形空间构成的燃料箱15; 用于将燃料从中心孔14引导到燃料储存器15的径向连通通道16; 以及由用于将燃料箱15中的燃料引导到文丘里管部分12的整个周边的微小狭缝构成的喷射孔17.由此，能够将液体燃料供应到通过文氏管部分12的所有加压空气，并且混合物的不均匀性可以抑制液体燃料和空气。结果，可以提高在加压空气中混合时从第二喷射孔7喷射的液体燃料的雾化。版权所有（C）2012，JPO＆INPIT

17. 发明专利

JP2011099351A Air blast injector 有权
标题翻译： AIR BLAST INJECTOR
公开(公告)号：JP2011099351A
公开(公告)日：2011-05-19
申请号：JP2009253309
申请日：2009-11-04
申请人： Denso Corp , 株式会社デンソー
发明人： MOCHIZUKI KOICHI
IPC分类号： F02M67/12 , F02M67/02
摘要： PROBLEM TO BE SOLVED: To provide an air blast injector capable of reducing an error of an amount of fuel injected together with pressurized air from a second injection hole. SOLUTION: A second needle inner passage 9 leading fuel injected by a first injector 1 to the second injection hole 6 is formed in a second needle 8, and fuel is injected from the first injection hole 3 of the first injector 1 toward the upper end of the second needle inner passage 9. The first injector 1 includes a fuel nozzle 10 injecting the fuel injected from the first injection hole 3 to the second needle inner passage 9. Since the fuel nozzle 10 axially overlaps with the second needle inner passage 9, the fuel injected from the first injector 1 is wholly supplied to the second needle inner passage 9 and introduced to the second injection hole 6. Thereby, a time and an amount until all fuel injected from the first injector 1 is introduced to the second injection hole 6 are stabilized, and fuel injection accuracy is improved. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够减少从第二喷射孔与加压空气喷射的燃料量的误差的鼓风喷射器。解决方案：将由第一喷射器1喷射的燃料引导到第二喷射孔6的第二针内通道9形成在第二针8中，并且燃料从第一喷射器1的第一喷射孔3朝向第一注射器1包括将从第一注射孔3喷射的燃料喷射到第二针内通道9的燃料喷嘴10.由于燃料喷嘴10与第二针内通道轴向重叠如图9所示，从第一喷射器1喷射的燃料被全部供给到第二针内通道9并被引入到第二喷射孔6.从而，直到从第一喷射器1喷射的所有燃料的时间和量都被引入到第二喷射孔喷射孔6稳定，燃料喷射精度提高。版权所有（C）2011，JPO＆INPIT

18. 发明专利

JP2011085082A Fuel injection device 审中-公开
标题翻译：燃油喷射装置
公开(公告)号：JP2011085082A
公开(公告)日：2011-04-28
申请号：JP2009238975
申请日：2009-10-16
申请人： Denso Corp , 株式会社デンソー
发明人： MIZOBUCHI TAKASHI , MOCHIZUKI KOICHI
IPC分类号： F02M21/02 , F02M61/18
CPC分类号： Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection device capable of inhibiting deterioration of performance of an engine caused by deterioration of combustion by sufficiently burning fuel even if fuel of low density such as gas fuel is applied.
SOLUTION: In the fuel injection device 1 in which a valve is opened by the movement of a valve member 21 to an axial direction downstream side, a valve seat 15 is formed on a valve body 10 in such a manner that an inner diameter gets larger as it goes further in an axial direction. A ring shape injection hole is formed between a valve member seat part 22 and a seat part 16 by separation of the valve member 21 from the valve seat 15, and fuel is injected from the ring shape injection hole. The valve member 21 includes a communication hole 32 guiding part of fuel to an inside of fuel injected from the ring shape injection hole in an axial direction downstream side of the seat part 16. Consequently, fuel injected from the ring shape injection hole during valve opening is easily mixed with air homogeneously in a combustion chamber, and deterioration of performance accompanying combustion deterioration of the engine is inhibited.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过充分燃烧燃料来抑制由燃烧劣化引起的发动机性能劣化的燃料喷射装置，即使应用诸如气体燃料的低密度燃料。解决方案：在通过阀构件21向轴向下游侧的移动而打开阀的燃料喷射装置1中，阀座15形成在阀体10上，内部直径在轴向上进一步变大。通过阀构件21与阀座15的分离，在阀构件座部22和座部16之间形成环形喷射孔，并且从环形喷射孔喷射燃料。阀构件21包括连通孔32，其将部分燃料引导到在座部16的轴向下游侧从环形喷射孔喷射的燃料的内部。因此，在阀打开期间从环形喷射孔喷射的燃料在燃烧室中容易与空气混合，能够抑制发动机燃烧劣化的性能劣化。版权所有（C）2011，JPO＆INPIT

19. 发明专利

JP2009287408A Injector 有权
标题翻译：注射器
公开(公告)号：JP2009287408A
公开(公告)日：2009-12-10
申请号：JP2008137925
申请日：2008-05-27
申请人： Denso Corp , 株式会社デンソー
发明人： IWAMURO MAKOTO , MOCHIZUKI KOICHI
IPC分类号： F02M47/00 , F02M51/00 , F02M51/06 , F02M61/10
摘要： PROBLEM TO BE SOLVED: To restrain a variation in an injection characteristic, and to enhance control responsiveness, in an injector 1 having a damper chamber 40.
SOLUTION: This injector 1 has a cylinder 34 relatively sliding in the axial direction to a needle valve 3, and an upper side space of the needle valve 3 on the outer peripheral side of a cylinder 34 forms the damper chamber 40. The cylinder 34 has a stopper 43, and the damper chamber 40 is communicated with a working flow passage 23 via an orifice 44 arranged in a lower body 27. Thus, the inflow-outflow of fuel to the damper chamber 40 is performed by the orifice 44. Thus, since an inflow-outflow flow rate of the fuel to the damper chamber 40 is hardly fluctuated, the variation in the injection characteristic is restrained as a result. The needle valve 3 is regulated in lifting by the stopper 43, and the lifting can be stopped before the volume of the damper chamber 40 becomes zero. Therefore, the control responsiveness of the injector 1 is enhanced.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：在具有阻尼室40的喷射器1中，抑制喷射特性的变化并提高控制响应性。解决方案：该喷射器1具有在轴向上相对滑动的气缸34 针阀3的方向，并且针阀3的在气缸34的外周侧的上侧空间形成阻尼室40.气缸34具有止动件43，并且阻尼室40与工作通过布置在下体27中的孔44，流动通道23由此通过孔口44进行到阻尼室40的流入流出。因此，由于燃料流向阻尼室的流入 - 流出流量 40几乎不发生波动，因此抑制了喷射特性的变化。针阀3由止动件43提升而被调节，并且在阻尼室40的容积变为零之前能够停止提升。因此，喷射器1的控制响应性提高。版权所有（C）2010，JPO＆INPIT

20. 发明专利

JP2009216022A Fuel injection device 有权
标题翻译：燃油喷射装置
公开(公告)号：JP2009216022A
公开(公告)日：2009-09-24
申请号：JP2008062061
申请日：2008-03-12
申请人： Denso Corp , 株式会社デンソー
发明人： OHATA KEIGO , NAKAJIMA TATSUSHI , MOCHIZUKI KOICHI
IPC分类号： F02M61/10 , F02M47/00 , F02M51/00 , F02M51/06 , F02M61/16
CPC分类号： F02M51/0603 , F02M61/205 , F02M2200/304 , F02M2200/704
摘要： PROBLEM TO BE SOLVED: To restrict a needle bounce, and to improve injection accuracy in regard to a fuel injection device for injecting and stopping high-pressure fuel into an internal combustion engine.
SOLUTION: In this fuel injection device 1, a pressure piston 12 is elevated by a piezoelectric actuator 11 housed in a fuel injection valve 10, and pressure in a control chamber 163 communicating with a pressure chamber 160 through communication flow passages 162 and 162 is increased and decreased so as to elevate a needle 15 slidably held in a fuel injection valve body 100, and an injection hole 106 is opened and closed so as to inject and stop the high pressure fuel led into a fuel reservoir chamber 173. A predetermined part of, at least, one of the inner peripheral wall 141 of a cylinder and a small diameter part 152 of the needle is formed with a back-pressure chamber capacity enlarging chamber 190 or a control chamber capacity enlarging chamber 191. Immediately before fully opening and closing the valve, the pressure in the back pressure chamber 171 or the pressure in the control chamber 163 applied to the needle 15 is instantaneously lowered, and the elevating speed of the needle 15 is restricted to restrict the needle bounce.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了限制针反弹，并且提高关于将高压燃料喷射和停止进入内燃机的燃料喷射装置的喷射精度。解决方案：在该燃料喷射装置1中，压力活塞12被容纳在燃料喷射阀10中的压电致动器11升高，并且通过连通流动通道162与压力室160连通的控制室163中的压力和 162被增加和减小，以便提升可滑动地保持在燃料喷射阀体100中的针15，并且打开和关闭喷射孔106，以便喷射和停止引导到燃料储存室173中的高压燃料。至少一个缸体的内周壁141和针的小直径部分152中的至少一个形成有背压室容积扩大室190或控制室容积扩大室191.在完全地打开和关闭阀门，背压室171中的压力或施加到针15上的控制室163中的压力瞬间降低，并且内部的升高速度限15针限制针反弹。版权所有（C）2009，JPO＆INPIT

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