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1. 发明专利

JP2004144052A Theoretical air fuel ratio stratified charge combustion internal combustion engine 有权
公开(公告)号：JP2004144052A
公开(公告)日：2004-05-20
申请号：JP2002312014
申请日：2002-10-28
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： YAMAGUCHI JUNICHI , ONISHI KOJI , FUJII TAKASHI , FUJIEDA MAMORU , TOKUYASU NOBORU
IPC分类号： F02P13/00 , F01N3/24 , F02B17/00 , F02B23/10 , F02B31/00 , F02B31/02 , F02D13/02 , F02D21/08 , F02D41/02 , F02D43/00 , F02M25/07
CPC分类号： F02D13/0257 , F02B17/005 , F02B2023/106 , F02B2023/108 , F02D21/08 , F02D41/006 , F02D41/3023 , F02D2041/001 , Y02T10/12 , Y02T10/18 , Y02T10/42 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To prevent deterioration in fuel economy by a rich spike to obtain a high exhaust emission control effect, while reducing pumping loss by stratified charge combustion to improve fuel economy. SOLUTION: An opening/closing timing for an intake valve is shifted by a variable mechanism and EGR gas is made to flow first into a cylinder. An air fuel ratio therefore is always kept in the vicinity of a theoretical air fuel ratio, while reducing the pumping loss by stratifying air-fuel mixture and EGR gas, and excellent combustion can be performed. Since a three-way catalyst can be used, a lean NOx catalyst becomes unnecessary, the deterioration in the fuel economy by the rich spike can be prevented, the cost can be reduced, and the large emission control effect can be obtained. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2004044598A Air intake device of internal combustion engine 审中-公开
公开(公告)号：JP2004044598A
公开(公告)日：2004-02-12
申请号：JP2003207424
申请日：2003-08-13
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： MINEGISHI TERUHIKO , OSUGA MINORU , YAMAGUCHI JUNICHI , SASAKI YASUSHI , NEMOTO HIROYUKI , KADOMUKAI YUZO , KAWABE RYUHEI
IPC分类号： F02B27/00 , F02B27/02 , F02B31/00 , F02D41/00 , F02M25/07 , F02M35/10 , F02M35/104 , F02M55/02 , F02M69/00 , F02M69/04
CPC分类号： Y02T10/146
摘要： PROBLEM TO BE SOLVED: To provide a compact air intake device of an internal combustion engine.
SOLUTION: A collector comprises a plurality of collector portions divided by a plurality of partition walls. A control circuit is attached to a surface of the partition wall. Wires to the control circuit are molded in a part of the partition wall, and the partition wall serves as insulation material for the wires. The partition wall is formed with a connector for electric connection. A fuel injection valve is attached to a manifold portion that is equipped with a manifold connected to the collector. The manifold is provided with a shutoff valve, and when the shutoff valve is closed, air is fed to an intake port through a bypass passage.
COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2003013826A Fuel supply device of engine 审中-公开
标题翻译：发动机燃油供应装置
公开(公告)号：JP2003013826A
公开(公告)日：2003-01-15
申请号：JP2002137163
申请日：2002-05-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OSUGA MINORU , OYAMA TAKASHIGE , NOGI TOSHIJI , YAMAGUCHI JUNICHI
IPC分类号： F02F1/42 , F02B31/00 , F02B31/02 , F02D9/02 , F02M51/02 , F02M69/00 , F02M69/04
CPC分类号： Y02T10/146
摘要： PROBLEM TO BE SOLVED: To prevent fuel adhesion to a combustion chamber, to improve particulating of fuel, to improve forming of air-fuel mixture in the combustion chamber, and to increase combustion efficiency and exhaust emission control.
SOLUTION: An injection valve 3 is disposed in the downstream of a throttle valve 15 of an intake passage. Air in the upstream of the throttle valve is jetted from peripheries 9a and 9b of the injection port of the injection valve 3 using pressure difference from a passage 8 bypassing the upstream of the throttle valve 15. The high speed air flow jetted from the bypass passage 8 surrounds injected fuel and prevents diffusion of the fuel, and guides the fuel to a position near the center of the combustion chamber of the upper surface of the head of an intake valve 2 or a position near the center of the combustion chamber between the intake valve and a sheet 5. A high speed air flow forming means may be interchangeable with a pipe for guiding the fuel and air flow.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了防止燃料粘附到燃烧室，改善燃料的颗粒化，改善燃烧室中的空气 - 燃料混合物的形成，并提高燃烧效率和废气排放控制。解决方案：喷射阀3设置在进气通道的节流阀15的下游。节流阀上游的空气从喷射阀3的喷射口的周边9a和9b喷射，该压力差来自旁路节流阀15上游的通道8。从旁路通道喷射的高速气流 8围绕注入的燃料并防止燃料的扩散，并且将燃料引导到靠近进气门2的头部的上表面的燃烧室的中心附近的位置或靠近燃烧室的中心的位置阀和片5.高速气流形成装置可与用于引导燃料和空气流的管道互换。

4. 发明专利

JP2009167878A Gasoline engine 审中-公开
标题翻译：汽油发动机
公开(公告)号：JP2009167878A
公开(公告)日：2009-07-30
申请号：JP2008006007
申请日：2008-01-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAGUCHI JUNICHI , MATOHARA SHINYA , INOUE MASAHIKO
IPC分类号： F02D41/34 , F02B17/00 , F02B23/10
CPC分类号： F02B17/00 , F02B23/101 , F02B23/104 , F02D41/3029 , F02D41/3094 , F02M69/046 , Y02T10/125
摘要： PROBLEM TO BE SOLVED: To provide a gasoline engine improved in output by effectively utilizing two injectors and enhancing uniformity of air-fuel mixture in high loading, and stably operated even when stratified charge combustion or weak stratified charge combustion is carried out. SOLUTION: One cylinder is equipped with a first injector 122a and a first injector 122b. A fuel is directly injected in the cylinder by these injectors. An ECU 201 performs the fuel injection in one combustion cycle using either one or both of two injectors according to the operating condition. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过有效地利用两个喷射器并提高高负荷的空气 - 燃料混合物的均匀性来提供改善输出的汽油发动机，并且即使进行分层充气燃烧或弱分层充气燃烧也能稳定运行。解决方案：一个气缸装备有第一喷射器122a和第一喷射器122b。燃料通过这些喷射器直接喷射到气缸中。 ECU201根据操作条件，使用两个喷射器中的一个或两个，在一个燃烧循环中进行燃料喷射。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2008202605A In-cylinder direct injection type internal combustion engine 审中-公开
标题翻译：内燃式直喷式内燃机
公开(公告)号：JP2008202605A
公开(公告)日：2008-09-04
申请号：JP2008144688
申请日：2008-06-02
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAGUCHI JUNICHI , TANABE YOSHIYUKI , ONISHI KOJI , ISHII TOSHIO , FUJII TAKASHI
IPC分类号： F02P15/10
CPC分类号： Y02T10/125 , Y02T10/46
摘要： PROBLEM TO BE SOLVED: To properly change the interval of the timings or crank angles of several times of ignition, in an internal combustion engine having a fuel injection valve for directly injecting fuel into cylinders and an ignition device for performing several times of ignition to the air-fuel mixture. SOLUTION: The internal combustion engine has a fuel injection valve for directly injecting fuel into cylinders and an ignition device for performing several times of ignition to the air-fuel mixture. An engine control device comprises: a means for monitoring battery voltage; and an ignition control device for changing the interval of the timings or crank angles of several times of ignition in response to the battery voltage. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了适当地改变具有用于将燃料直接喷射到气缸中的燃料喷射阀的内燃机和用于执行几次的点火装置的几次点火的定时或曲柄角的间隔点燃到空气 - 燃料混合物。解决方案：内燃机具有用于将燃料直接喷射到气缸中的燃料喷射阀和用于对空气 - 燃料混合物进行几次点火的点火装置。发动机控制装置包括：用于监测电池电压的装置; 以及点火控制装置，用于响应于电池电压而改变点火次数的定时或曲柄角的间隔。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2008057479A Direct injection engine 有权
标题翻译：直喷式发动机
公开(公告)号：JP2008057479A
公开(公告)日：2008-03-13
申请号：JP2006237199
申请日：2006-09-01
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAGUCHI JUNICHI , MIYAKE TAKEO , INOUE MASAHIKO
IPC分类号： F02B23/10 , F02B17/00 , F02B31/00 , F02D41/02 , F02D41/04 , F02D41/34 , F02F1/24 , F02F1/42 , F02F3/26
CPC分类号： Y02T10/125 , Y02T10/146
摘要： PROBLEM TO BE SOLVED: To provide a direct injection engine forming a good stratified air-fuel mixture in a wide operational area, and mixing air and fuel in a good manner even if an air flow in a cylinder gets stronger so as to improve an air utilization factor. SOLUTION: A recess is formed to a crown surface part of a piston so as to maintain tumble, a fuel spray jetted from at least one of a plurality of injection holes of a fuel injection valve facing an intake side of a combustion chamber is injected toward the recess. The recess is provided with a spray reflecting face formed of a flat face or a curved face whose inclination angle or curvature is set so that at least one fuel splay jetted toward the recess is collided with the spray reflecting face so as to be reflected to an ignition plug when injection is performed at a compression stroke. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供在广泛的操作区域形成良好的分层空气 - 燃料混合物的直接喷射发动机，并且即使气缸中的气流变得更强，也能以良好的方式混合空气和燃料，从而提高空气利用率。解决方案：将凹部形成到活塞的冠表面部分以保持翻转，从燃料喷射阀的多个喷射孔中的至少一个喷射孔喷射的燃料喷雾面向燃烧室的进气侧被注入凹部。凹部设置有由平面或曲面形成的喷雾反射面，其倾斜角度或曲率被设定为使得朝向凹部喷射的至少一个燃料喷射与喷射反射面相撞以便被反射到当在压缩冲程下进行注射时，点火塞。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2007177794A Controller 有权
标题翻译： CONTROLLER
公开(公告)号：JP2007177794A
公开(公告)日：2007-07-12
申请号：JP2007073088
申请日：2007-03-20
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAGUCHI JUNICHI , ONISHI KOJI , ABO MATSUHARU
IPC分类号： F02B37/007 , F01N3/20 , F01N3/24 , F01N13/08 , F02B37/02 , F02B37/04 , F02B37/12 , F02B37/18 , F02D23/00 , F02D23/02 , F02D41/02 , F02D41/04 , F02D43/00 , F02D45/00
CPC分类号： Y02T10/144
摘要： PROBLEM TO BE SOLVED: To improve an output or fuel economy by fully exerting a supercharge function during either of low speed operation and high speed operation of an engine. SOLUTION: An engine 101 is equipped with a fuel injection mechanism which injects a fuel directly into a cylinder 101a; a first turbo-supercharger104 for making supercharge at a time of low speed running of the engine 101 and a second turbo-supercharger105 which makes supercharge at a time of high speed running; a first and a second exhaust gas control valves 106, 107 which make selection of exhaust gas passages related to the first and second turbo-superchargers 104, 105 and control of exhaust gas flow quantities; and a controller 114 controls opening or closing action of the exhaust gas control valves 106, 107 so as to realize stratified charge combustion or homogenous combustion using the first and the second turbo-superchargers 104, 105, corresponding to the running condition of the engine 101. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过在发动机的低速运转和高速运转之中充分发挥增压功能，提高输出或燃油经济性。发动机101配备有将燃料直接喷射到气缸101a中的燃料喷射机构; 用于在发动机101的低速行驶时进行增压的第一涡轮增压器104和在高速行驶时进行增压的第二涡轮增压器105; 第一和第二排气控制阀106,107，其选择与第一和第二涡轮增压器104,105相关的废气通道和排气流量的控制; 并且控制器114控制排气控制阀106,107的打开或关闭动作，以便根据发动机101的运行状态来实现使用第一和第二涡轮增压器104,105的分层充气燃烧或均匀燃烧。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2008190511A Exhaust gas reduction device for direct injection gasoline engine 审中-公开
标题翻译：用于直接喷射汽油发动机的排气减压装置
公开(公告)号：JP2008190511A
公开(公告)日：2008-08-21
申请号：JP2007028661
申请日：2007-02-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAGUCHI JUNICHI
IPC分类号： F02D41/04 , F02D41/02 , F02D41/06 , F02D41/34 , F02D43/00 , F02D45/00 , F02P5/15
CPC分类号： Y02T10/46
摘要： PROBLEM TO BE SOLVED: To provide a direct injection engine system capable of reducing the discharge of HC at the starting of an engine and an accelerating rise of an exhaust gas temperature.
SOLUTION: A time change of an engine rotational frequency is detected, the combustion stability of each cylinder is calculated and recorded by statistical processing, and based on the above, fuel injection timing, an injection amount, and ignition timing are controlled for each cylinder. Even if a variation occurs in spraying an injector initially or by aging, this can be corrected, and a sufficient ignition retard amount can be secured while maintaining combustion stability. Further, the exhaust gas temperature is raised, the early activation of a catalyst becomes possible, and HC and soot can be reduced while preventing a misfire.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在发动机起动时减少HC的排放和排气温度的加速上升的直接喷射发动机系统。解决方案：检测发动机转速的时间变化，通过统计处理来计算和记录每个气缸的燃烧稳定性，并且基于上述，控制燃料喷射正时，喷射量和点火正时每个气缸。即使最初或通过老化喷射喷射器时发生变化，也可以进行校正，并且可以在保持燃烧稳定性的同时确保足够的点火延迟量。此外，废气温度升高，催化剂的早期活化成为可能，并且可以减少HC和烟炱，同时防止失火。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007177731A Cylinder injection type internal combustion engine and fuel injection method 有权
标题翻译：气缸喷射式内燃机和燃油喷射方法
公开(公告)号：JP2007177731A
公开(公告)日：2007-07-12
申请号：JP2005378444
申请日：2005-12-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIYAKE TAKEO , KATAOKA TETSUO , FUJII TAKASHI , YAMAGUCHI JUNICHI
IPC分类号： F02D41/34 , F02B17/00 , F02D41/04 , F02D41/20
摘要： PROBLEM TO BE SOLVED: To reduce smoke and unburned gas contained in exhaust gas and improve output and fuel economy in a cylinder injection type internal combustion engine.
SOLUTION: When high load of the cylinder injection type internal combustion engine is demanded, fuel is injected at least once in an early stage, a middle stage and a later stage of an intake stroke, respectively, and fuel injection quantity of each injection is corresponded to intake air quantity at injection timing thereof.
COPYRIGHT: (C)2007,JPO&INPIT

10. 发明专利

JP2005220768A Combustion method for cylinder direct injection engine 审中-公开
标题翻译：气缸直接喷射发动机的燃烧方法
公开(公告)号：JP2005220768A
公开(公告)日：2005-08-18
申请号：JP2004027226
申请日：2004-02-03
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： FUJIEDA MAMORU , YAMAGUCHI JUNICHI
IPC分类号： F02B23/10 , F02B17/00 , F02B23/08 , F02B31/00 , F02B31/02 , F02F3/26 , F02F3/28 , F02M25/07
CPC分类号： Y02T10/12 , Y02T10/121 , Y02T10/125 , Y02T10/146
摘要： PROBLEM TO BE SOLVED: To provide a combustion method for a cylinder direct injection engine to perform stable stratified combustion.
SOLUTION: A fuel injection valve 5 is used which increases fuel injection pressure to improve the atomization of fuel. Utilizing the high penetration of spray from the fuel injection valve 5, the fuel is injected to a cavity 21 of a piston 2, fuel spray 17 is reflected in the cavity 21 with its penetrating force, and a whole mixture is transported near an ignition plug 6. A swirl flow 16 is generated to confine the fuel spray 17 and prevent its diffusion. A cavity center protrusion 26 is provided in the cavity 21. A piston outer periphery 28 serves as a flow path for the swirl flow 16.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于气缸直喷式发动机进行稳定分层燃烧的燃烧方法。解决方案：使用燃料喷射阀5，其增加燃料喷射压力以改善燃料的雾化。利用来自燃料喷射阀5的高的喷射渗透，将燃料喷射到活塞2的空腔21中，燃料喷雾17以其穿透力反射在空腔21中，并且将整个混合物在火花塞附近运送产生涡流16以限制燃料喷雾17并防止其扩散。空腔中心突起26设置在空腔21中。活塞外周28用作涡流16的流动路径。（C）2005年，JPO和NCIPI

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