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1. 发明专利

JP2008223499A Starting control device for engine 有权
标题翻译：启动发动机控制装置
公开(公告)号：JP2008223499A
公开(公告)日：2008-09-25
申请号：JP2007058958
申请日：2007-03-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATANABE SATORU , KUBO HIROMASA , OSUGA MINORU , KITAYAMA TORU
IPC分类号： F02D13/02 , F01L13/00 , F02D29/02 , F02D41/06 , F02D43/00 , F02D45/00 , F02N9/02
CPC分类号： F02D41/062 , F02D13/06 , F02D17/02 , F02D41/0002 , F02D41/0082 , F02D2041/001 , F02N19/004 , F02N99/006 , Y02T10/18 , Y02T10/42
摘要： PROBLEM TO BE SOLVED: To enhance the success rate of self-starting an engine, in which combustion of a fuel in a combustion chamber starts rotating a crank shaft and starts the engine.
SOLUTION: In the V type engine provided with a variable valve mechanism making an operation angle and a lift amount of an intake valve variable, when an idle stop condition is materialized to automatically stop the engine, it is changed smaller than an operation angle-lift amount required for continuation of engine starting. When re-starting requirement is generated, first explosion pressure is obtained by fuel injection and ignition to a cylinder being stopped in an expansion stroke to start starting of the engine. After the first intake stroke, the operation angle-lift amount of each bank is increased/varied with time difference.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提高燃烧室中的燃料的燃烧开始曲轴启动并启动发动机的发动机的自启动的成功率。解决方案：在具有可变气门机构的V型发动机中，使可操作角度和进气门的升程量变化，当怠速停止状态实现以自动停止发动机时，其变化小于操作继续发动机启动所需的角度提升量。当产生重新启动要求时，通过燃料喷射获得第一爆炸压力并且在膨胀冲程中停止的气缸点火以开始发动机起动。在第一进气冲程之后，每个组的操作角度提升量随时间差增大/变化。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2004132381A Fuel injection device 有权
公开(公告)号：JP2004132381A
公开(公告)日：2004-04-30
申请号：JP2004015054
申请日：2004-01-23
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： YAMAKADO MAKOTO , AMO KIYOSHI , OKAMOTO YOSHIO , KADOMUKAI YUZO , KUBO HIROMASA , TABUCHI KENJI , TAKAHATA TOSHIO , TANABE YOSHIYUKI , HAMADA YASUHISA
IPC分类号： F02M51/06 , F02D41/20 , F02M51/00 , F02M51/08
摘要： PROBLEM TO BE SOLVED: To generate characteristic driving force as desired for the operated condition of an injector by preventing a reverse current due to mutual induction between a first coil and a second coil and improving the forward rising characteristic of a current.
SOLUTION: This fuel injection device comprises a first switching means and a second switching means for switching the connection of the first coil and the second coil to a power supply. Each of the first and second switching means is formed with a transistor having a surge absorbed diode. Otherwise, a diode is provided between the second coil and the second switching means or between the second switching means and the negative side of the power supply for carrying a current flowing only in a direction from the second coil to the second switching means.
COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2008014321A Fuel injection valve and internal combustion engine having it 审中-公开
标题翻译：燃油喷射阀和内燃机
公开(公告)号：JP2008014321A
公开(公告)日：2008-01-24
申请号：JP2007257036
申请日：2007-10-01
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIYAJIMA AYUMI , OKAMOTO YOSHIO , KADOMUKAI YUZO , TOGASHI MORINORI , AMO KIYOSHI , YAMAKADO MAKOTO , ISHIKAWA TORU , KUBO HIROMASA , FUJII TAKASHI
IPC分类号： F02M61/18 , F02B23/10 , F02M61/14
CPC分类号： Y02T10/125
摘要： PROBLEM TO BE SOLVED: To realize spray hard to be collapsed even if an in-cylinder pressure is increased. SOLUTION: A first lean portion where fuel particles are lean is formed at the center of a spray cross section. A fuel spray having one second lean portion where fuel particles are lean is jetted into the spray portion surrounding the first lean portion. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使缸内压力增加，也难以实现喷射困难。解决方案：在喷射截面的中心处形成燃料颗粒倾斜的第一倾斜部分。将燃料颗粒倾斜的具有一个第二倾斜部分的燃料喷射喷射到围绕第一稀薄部分的喷射部分中。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2006057641A Electromagnetic fuel injection valve 有权
标题翻译：电磁燃油喷射阀
公开(公告)号：JP2006057641A
公开(公告)日：2006-03-02
申请号：JP2005329324
申请日：2005-11-14
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： OGURA KIYOTAKA , SEKINE ATSUSHI , KUBOTA EIICHI , NAKANO MASABUMI , URASHIRO KEIICHI , MAEKAWA NORIYUKI , YOKOYAMA MIZUHO , TANABE YOSHIYUKI , KUBO HIROMASA , ISHIKAWA TORU
IPC分类号： F02M51/06 , F02M61/16 , F02M61/18
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve capable of reducing cost, improving centering precision (concentricity precision), and facilitating assembly of the fuel injection valve, simplifying parts, improving degree of freedom of mounting property, and preventing secondary injection. SOLUTION: A fuel swivel piece positioned on the upstream side of an injection hole is arranged on a tip side of a nozzle body of the fuel injection valve, and a fixed core and the nozzle body are mutually connected by a non-magnetic cylindrical seal ring press-fitted and welded in the outer periphery of one end of the fixed core and the inner periphery of one end of the nozzle body. The inner periphery of the fuel swivel piece and the inner periphery of the seal ring become guides for sliding and guiding stroke operation of a needle with a valve element. The fuel swivel piece is nipped and held between a receiving face on a nozzle body side and an orifice plate, and an annular fuel passage is formed between the outer periphery of the fuel swivel piece and the inner periphery of the nozzle body so that fuel flows into a passage channel provided on a lower end face of the fuel swivel piece through the annular fuel passage. A mass body movable in the axial direction independently from the needle is interposed between a return spring and the needle, and a plate spring is provided between the mass body and the needle. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够降低成本，提高定心精度（同心度精度）并且便于燃料喷射阀的组装，简化部件，提高安装性能的自由度以及防止二次侧的燃料喷射阀注射。解决方案：位于喷射孔上游侧的燃料旋转件布置在燃料喷射阀的喷嘴体的末端侧，并且固定芯和喷嘴体通过非磁性相互连接圆柱形密封环压配合并焊接在固定芯的一端的外周和喷嘴体的一端的内周。燃料旋转件的内周和密封环的内周成为用于滑动并引导具有阀元件的针的行程操作的引导件。燃料旋转件被夹持并保持在喷嘴主体侧的接收面和孔板之间，并且在燃料旋转件的外周和喷嘴体的内周之间形成环形燃料通道，使得燃料流动进入通过环形燃料通道设置在燃料旋转件的下端面上的通道。独立于针可沿轴向移动的质量体置于复位弹簧和针之间，并且在弹簧体和针之间设有板簧。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2004100500A Fuel injection valve and internal combustion engine mounting the same 有权
公开(公告)号：JP2004100500A
公开(公告)日：2004-04-02
申请号：JP2002260752
申请日：2002-09-06
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： TOGASHI MORINORI , OKAMOTO YOSHIO , YAMAKADO MAKOTO , SOMA MASAHIRO , KUBO HIROMASA
IPC分类号： F02B1/12 , F02M51/06 , F02M61/18
CPC分类号： F02M61/1853 , F02B1/12 , F02M51/0671
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve and an internal combustion engine, in which atomization performance is effectively improved near fuel injection holes.
SOLUTION: Grooves 201 are formed between the fuel injection holes 107 on a face of a plate member 111 in a fuel passage to be arranged along a circumferential direction of the fuel injection holes 107, so as to create overflows 502 at the grooves 201. Further, a contraction flow part 602 is formed in the fuel injection hole 107 to increase maximum flow velocity at an outlet part of the fuel injection hole, and thereby to improve the atomization performance.
COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2002206469A FUEL INJECTION VALVE AND INTERNAL COMBUSTION ENGINE LOADED WITH THE SAME 失效
公开(公告)号：JP2002206469A
公开(公告)日：2002-07-26
申请号：JP2001005016
申请日：2001-01-12
申请人： HITACHI LTD
发明人： MIYAJIMA AYUMI , OKAMOTO YOSHIO , KADOMUKAI YUZO , ABE MOTOYUKI , KUBO HIROMASA , ISHIKAWA TORU , NAMAIZAWA YASUO
IPC分类号： F02M61/18 , F02M51/06 , F02M61/14
摘要： PROBLEM TO BE SOLVED: To prevent deterioration of the fuel injection due to deposits adhered to a tip surface of a nozzle of a fuel injection valve. SOLUTION: This fuel injection valve 1 is provided with an injection hole 7b, a seat surface 7a positioned in the upstream of the injection hole, and a ball 6 to be brought into contact and separated with/from the seat surface to open and close a fuel passage communicated with the injection hole 7b. A recessed part 7e is provided in a tip surface 7d of the nozzle provided with a minute space from the edge of the outlet of the injection hole.

7. 发明专利

JP2002195133A METHOD OF MANUFACTURING FUEL INJECTION VALVE, FUEL INJECTION VALVE AND INTERNAL COMBUSTION ENGINE HAVING THE SAME INSTALLED 失效
公开(公告)号：JP2002195133A
公开(公告)日：2002-07-10
申请号：JP2000394087
申请日：2000-12-26
申请人： HITACHI LTD
发明人： ABE MOTOYUKI , OKAMOTO YOSHIO , KADOMUKAI YUZO , YAMAKADO MAKOTO , MIYAJIMA AYUMI , KUBO HIROMASA , ISHIKAWA TORU , NAMAIZAWA YASUO
IPC分类号： F02M51/06 , F02M51/08 , F02M61/16 , F02M61/18 , F02M69/46
摘要： PROBLEM TO BE SOLVED: To reduce fuel consumption and control unburned fuel components in exhaust gas by creating a spray concentration part and a lean spray part and adjusting their position for adapting spray according to a geometrical shape of an engine and an attachment position of the fuel injection valve in a rotary fuel injection valve. SOLUTION: A step is provided on an opening part of an injection hole of the fuel injection valve. More than two change parts at an edge of the injection hole opening part generated by the level difference is included. A straight line joining the edge change parts has angles to a wall having angles to a wall created by the level difference perpendicular to an injection hole axis.

8. 发明专利

JP2002089269A INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2002089269A
公开(公告)日：2002-03-27
申请号：JP2000286854
申请日：2000-09-18
申请人： HITACHI LTD
发明人： OKAMOTO YOSHIO , MIYAJIMA AYUMI , KADOMUKAI YUZO , ABE MOTOYUKI , TOGASHI MORINORI , KUBO HIROMASA , FUJII TAKASHI , ISHIKAWA TORU , NOGI TOSHIJI
IPC分类号： F02P13/00 , F02B23/08 , F02B23/10 , F02B31/08 , F02B75/02 , F02B75/12 , F02F1/24 , F02M25/07 , F02M51/06 , F02M61/14 , F02M61/16 , F02M61/18
摘要： PROBLEM TO BE SOLVED: To solve a conventional problem in reduction of exhaust HC by after- burning by fuel deposition, in a fuel stability by insufficient stratifying of air-fuel mixture, and in improvement of fuel consumption because conventionally fuel spray in a shape of a hollowed conical is collided with a piston having a cavity in order to transfer fuel to an ignition plug. SOLUTION: The spray is pointed to an ignition plug 700. An L shaped notch is provided on an outlet part of a nozzle of a turning type fuel injection valve 1. Thus, the spray is deflected so that turning components are strong and spray in a large quantity is possible. Therefore, the reduction of the exhaust HC and the improvement of the fuel consumption can be achieved.

9. 发明专利

JP2001221121A ELECTROMAGNETIC FUEL INJECTION SYSTEM AND INTERNAL COMBUSTION ENGINE HAVING IT MOUNTED 失效
公开(公告)号：JP2001221121A
公开(公告)日：2001-08-17
申请号：JP2000035618
申请日：2000-02-08
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： YAMAKADO MAKOTO , ABE MOTOYUKI , KADOMUKAI YUZO , MAEKAWA NORIYUKI , KUBO HIROMASA , ISHIKAWA TORU , TAKAHATA TOSHIO , HAMADA YASUHISA
IPC分类号： F02M51/06 , F02D41/20 , F02M51/00 , F16K31/06
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection system easy to manufacture, surely perform valve opening operation, and inject appropriate quantity of fuel in the electromagnetic fuel injection system and an internal combustion engine. SOLUTION: The electromagnetic fuel injection system comprises a coil 11 for driving a valve element 90 opening/closing a fuel passage and is provided with a control means for changing large magnetomotive force to the coil 11 in an initial time of the valve opening into small magnetomotive force in retaining the valve opening. The electromagnetic fuel injection system and the internal combustion engine have a function to detect status of the valve opening of a valve element 90 and change the large magnetomotive force in the initial time into the small magnetomotive force in retaining based on information of valve opening detected.

10. 发明专利

JPH11148439A ELECTROMAGNETIC FUEL INJECTION VALVE AND ITS FUEL INJECTION METHOD 失效
公开(公告)号：JPH11148439A
公开(公告)日：1999-06-02
申请号：JP5769998
申请日：1998-03-10
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： YAMAKADO MAKOTO , OKAMOTO YOSHIO , KADOMUKAI YUUZOU , ARAI NOBUKATSU , TANABE YOSHIYUKI , NAMAIZAWA YASUO , KUBO HIROMASA , TABUCHI KENJI , HAMADA YASUHISA
IPC分类号： F02D41/20 , F02M51/00 , F02M51/06 , F02M51/08 , F16K31/06
摘要： PROBLEM TO BE SOLVED: To increase the responsiveness when a valve element is driven from a valve closing condition to a valve opening condition, and at the same time, maintain the valve opening condition stably in a low power consumption after the valve is opened. SOLUTION: In an electromagnetic fuel injection valve 10, the first magnetomotive force generating means 11 and the second magnetomotive force generating means 12 to drive a valve element 16 are provided, and the first magnetomotive force generating means 11 is composed to allow to generate the magnetomotive force to rise at the time change rate larger than the second magnetomotive force generating means 12. The second magnetomative force generating means 12 is composed to maintain the valve element in the valve opening condition at a low power consumption.

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