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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

JP2001193528A DIRECT CYLINDER INJECTION ENGINE CONTROL DEVICE 失效
公开(公告)号：JP2001193528A
公开(公告)日：2001-07-17
申请号：JP2000004752
申请日：2000-01-13
申请人： HITACHI LTD
发明人： ABO MATSUHARU , FUJII TAKASHI , ONISHI KOJI , FUJIEDA MAMORU , YAMAGUCHI JUNICHI
IPC分类号： F02D1/02 , F02D41/02 , F02D41/06 , F02D45/00 , F02M55/02 , F02M59/42
摘要： PROBLEM TO BE SOLVED: To provide a cylinder injection engine control device capable of conducting stratified combustion based on a accurately determined engine state, rising a fuel pressure from the time of starting engine, shortening engine starting time, reducing harmful substances, and saving a manufacturing cost. SOLUTION: This direct cylinder injection engine control device comprises, a fuel injection valve provided in a cylinder, a fuel piping provided with the fuel injection valve, a high pressure pump for feeding fuel to the fuel piping, a fuel pressure detecting means for detecting the fuel pressure of the fuel piping, and an engine water temperature detecting means for detecting the water temperature of the engine. The direct cylinder injection engine control device is provided with a starting stratified operation determining means for determining stratified operation at the time of starting the engine on the basis of each output signal of the fuel pressure detecting means and the engine water temperature detecting means.

5. 发明专利

JPH0681735A AIR INTAKE DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0681735A
公开(公告)日：1994-03-22
申请号：JP23086792
申请日：1992-08-31
申请人： HITACHI LTD
发明人： YAMADA HIROYUKI , MAMA SHIGEYUKI , OSUGA MINORU , YAMAGUCHI JUNICHI
IPC分类号： F02D35/00 , F02M35/04 , F02M35/10 , F02M35/104 , F02M69/48
摘要： PURPOSE:To embody compactness and high accuracy of the intake device, by integrating the intake device for an engine into the whole structure thereof. CONSTITUTION:This device is arranged with an air cleaner 101, an air flowmeter 102, a slottle valve 103, a surge tank 104, and an independent branch intake pipe 105 adjoiningly. A variable intake long valve and moreover a control unit 106 are provided in the independent branch intake pipe 105 and on an intake device respectively. This embodies the reduction of manhours in designing and production of an engine, the standardization of an intake device, and the high accuracy and high output of engine performance.

6. 发明专利

JPH0681719A INTAKE DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0681719A
公开(公告)日：1994-03-22
申请号：JP23086492
申请日：1992-08-31
申请人： HITACHI LTD
发明人： YAMAGUCHI JUNICHI , OSUGA MINORU , NOGI TOSHIJI , FUJIEDA MAMORU , KURIHARA NOBUO , OYAMA TAKASHIGE , YAMADA HIROYUKI , MAMA SHIGEYUKI
IPC分类号： F02B31/00 , F02B27/02 , F02B31/02 , F02B31/08 , F02D21/08 , F02F1/24 , F02F1/42 , F02M25/07 , F02M35/04 , F02M35/104 , F02M35/108 , F02M69/00 , F02M69/32
摘要： PURPOSE:To provide an intake device which forms swirl having a suitable strength, according to an engine speed and a load, whose air-intake characteristics is favorable even when an engine is subjected to full load, responsiveness of fuel is high and responsiveness of air is also high when the torqueup is performed by the operation of an auxiliary apparatus. CONSTITUTION:An auxiliary fluid passage 210 is provided besides the main passage 202 of an air-intake pipe, and an outlet 213 is opened to an independent air intake pipe 205 near the air-intake valve. Plural kinds of fluids to be introduced are air, EGR gas or the like. And these fluids have a plurality of control usage like idle control, torqueup, EGR. These fluids are controlled by an air- intake control valve 211 provided in the auxiliary passage 210. Since content volume of the auxiliary fluid passage 210 can be made smaller than that of the main air passage 202, fluid as much as needed can be quickly supplied to the engine, thereby responsiveness in idle, torque-up, EGR or the like can be improved.

7. 发明专利

JPH0545281A FUEL COMPONENT SENSOR 失效
公开(公告)号：JPH0545281A
公开(公告)日：1993-02-23
申请号：JP23076091
申请日：1991-08-19
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： NOGI TOSHIJI , YAMAGUCHI JUNICHI , OSUGA MINORU , OYAMA TAKASHIGE , UENO SADAYASU , MINAMI NAOKI
IPC分类号： F02D19/08 , F02D45/00 , F02M31/125 , G01N21/41
摘要： PURPOSE:To provide a fuel component sensor, which can sense accurately the methanol concentration over a wide operation range without causing drop of the sensing accuracy even though the fuel temp. has sunk and which permits performing the optimum control of an engine operable with any of methanol and gasoline or even a mixture thereof. CONSTITUTION:Part of light from a light emitting element 1 leaks into the fuel from a conductor 3, wherein the amount of leakage depends upon the refractivity of the fuel. Because methanol and gasoline have different refractivity, the methanol concentration in the currently used fuel can be sensed with the signal given by a light receiving element 2. An electric heater wire 5 is provided on the surface of a photo-conductor 3 to make temp. control so that no phase separation is generated in the fuel. Even though the fuel temp. has sunk, the temp. of the fuel around the photo-conductor 3 is kept at a temp. over a specified level to enable sensing of the methanol concentration over a wide operation range without causing drop of the sensing accuracy, and thus the engine concerned can be controlled properly.

8. 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

9. 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

10. 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

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