专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明专利

JPH04178550A THERMAL FUEL NATURE SENSOR 失效
公开(公告)号：JPH04178550A
公开(公告)日：1992-06-25
申请号：JP30632090
申请日：1990-11-14
申请人： HITACHI LTD
发明人： YAMAGUCHI JUNICHI
IPC分类号： G01N25/18 , G01N27/18
摘要： PURPOSE:To conduct nature judgement with a large applicability by knowing the nature of fuel from a thermal material value which is a product of a coefficient of thermal conductivity and a specified power of a Prandtl number. CONSTITUTION:A heating resistor 1 coated with a platinum wire and a heating resistor 2, the output of which does not change with the speed of a fluid and differs with temperature are used to change the flow speed of fuel in more than two stages, and according to the flow speed ratio, a function expressed by a product of a coefficient of thermal conductivity of fule at a certain temperature and a Prandtl number raised to 0.2 power is obtained. On the basis of the function, the gasification rate of gasoline at that temperature is calculated, and a required quantity of fuel is decided in such a manner that combustion is performed at a preset fuel ratio to a desigated quantity of air to control a fuel injection equipment, Thus, the nature of fuel can be known from a thermal material value very close related to combustion, so that a sensor can be operated with a large applicability.

22. 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

23. 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
摘要翻译：要解决的问题：减少排气中所含的烟雾和未燃烧气体，并提高气缸喷射式内燃机的输出和燃料经济性。
解决方案：当需要气缸喷射式内燃机的高负载时，分别在进气冲程的早期阶段，中段和后期阶段分别喷射燃料和燃料喷射量注射对应于其喷射正时的进气量。版权所有（C）2007，JPO＆INPIT

24. 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

25. 发明专利

JP2004340040A Warm-up control method for cylinder injection type spark-ignition engine 有权
公开(公告)号：JP2004340040A
公开(公告)日：2004-12-02
申请号：JP2003138071
申请日：2003-05-16
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SUKEGAWA YOSHIHIRO , YAMAGUCHI JUNICHI , KIHARA YUSUKE , TOKUYASU NOBORU , FUJII TAKASHI
IPC分类号： F02P5/15 , F02B23/06 , F02B23/08 , F02B23/10 , F02B31/00 , F02D41/02 , F02D41/06 , F02D43/00 , F02D45/00
CPC分类号： Y02T10/125 , Y02T10/146 , Y02T10/46
摘要： PROBLEM TO BE SOLVED: To reduce unburnt hydrocarbon in cold start and to increase a temperature of a catalyst early, in a cylinder injection type spark-ignition engine. SOLUTION: In the cylinder injection type spark-ignition engine, a means for generating tumble in a cylinder, a means for keeping the tumble until a second state of compression stroke, and a fuel injector whose penetration on an ignition plug side is longer than that on an piston side, are provided. In warm-up operation, fuel is injected so that an air-fuel ratio becomes an approximately theoretical mixture ratio at a second half stage of the compression stroke to retard ignition timing. Since the unburnt HC is burnt in an exhaust pipe while generation of soot is suppressed, HC emission in cold start is reduced and a catalytic converter is activated early. COPYRIGHT: (C)2005,JPO&NCIPI

26. 发明专利

JP2004340039A Combustion control system in starting and warm-up of internal combustion engine 审中-公开
公开(公告)号：JP2004340039A
公开(公告)日：2004-12-02
申请号：JP2003138070
申请日：2003-05-16
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAGUCHI JUNICHI , FUJII TAKASHI , SUKEGAWA YOSHIHIRO
IPC分类号： F02P5/15 , F02D41/06 , F02D43/00
CPC分类号： Y02T10/46
摘要： PROBLEM TO BE SOLVED: To provide a system for suppressing exhaust of unburnt HC, by increasing an exhaust temperature in cold engine with simple structure, and warming up a catalyst early.
SOLUTION: The exhaust temperature can be increased by increasing an amount of fuel for after burning, while ignition timing is set from 5° before the top dead center to 36° after the top dead center to suppress effective torque of a shaft of an engine in a suitable amount. By deflection spray, fuel is carried near a plug without collision of the fuel with a crown face of a piston or a cylinder wall. The fuel injected in a second half of a compression stroke is not diffused to prevent the fuel or air-fuel mixture entering into a quench layer near the cylinder wall and thereby to reduce an unburnt HC amount. At this time, an air-fuel ratio is made to be a stoichiometric air-fuel ratio or in a slight lean state, and the exhaust temperature is kept to be high, so as to make the after burning be likely to occur. When a temperature of the catalyst is sufficiently increased and it is determined that HC and NOx are sufficiently reduced even if normal combustion is performed, the control is returned to a normal control after the warm-up.
COPYRIGHT: (C)2005,JPO&NCIPI

27. 发明专利

JP2001214764A VALVE SYSTEM FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2001214764A
公开(公告)日：2001-08-10
申请号：JP2000023325
申请日：2000-01-27
申请人： HITACHI LTD
发明人： YAMAGUCHI JUNICHI
IPC分类号： F01L9/04 , F02D13/02
摘要： PROBLEM TO BE SOLVED: To minimize the collision speed between a valve driving electromagnet and a movable element with a simple structure in a valve system for internal combustion engine to suppress noise or vibration and to minimize the power consumption. SOLUTION: This valve system comprises the movable element 116 integrated to an intake valve and/or exhaust valve 112, a valve opening electromagnet 106 for stroking the movable element, a valve closing electromagnet 104, a spring 101 for energizing the movable element in the valve opening direction, and a spring 109 for energizing it in the valve closing direction. The valve 112 is opened and closed by use of the electromagnetic force and the spring force. When an auxiliary coil 602 is electrified to attract an auxiliary movable element 603 to this coil side, the balancing position by the springs 101 and 109 of the movable element 116 is displaced from the neutral position to the valve opening side. When an auxiliary coil 601 is electrified to attract the auxiliary movable element 603 to this coil side, the balancing position of the movable element 116 is displaced from the neutral position to the valve closing side.

28. 发明专利

JPH07293401A INTAKE DEVICE FOR INTERVAL COMBUSTION ENGINE 失效
公开(公告)号：JPH07293401A
公开(公告)日：1995-11-07
申请号：JP9106294
申请日：1994-04-28
申请人： HITACHI LTD
发明人： OSUGA MINORU , YAMAGUCHI JUNICHI , KOMURO RYOICHI , MOMONO MASAYOSHI
IPC分类号： F02B31/00 , F02B27/02 , F02B31/02 , F02B31/04 , F02B31/08 , F02B75/22 , F02M23/12 , F02M35/10 , F02M35/116 , F02M69/00 , F02M69/04
摘要： PURPOSE:To stabilize combustion under the lean condition of an engine in an intake pipe to supply air and fuel to the combustion chamber of the engine. CONSTITUTION:Air passing through a throttle valve 1 is divided in an independent intake pipe 4, passed through an intake valve 5, and absorbed into a cylinder 6. An auxiliary valve 7 for generating a slewing flow 9 in the cylinder 6 and an intake passage 8 to bypass therethrough are provided therein. The auxiliary valve 7 is usually opened, however, when lean combustion is performed or there is need to improve combustion during a period such as an idle period and a low temperature period, the auxiliary valve 7 is closed so that intake air is supplied from the intake passage 8 into the cylinder 6. Hereby, a drift flow is generated in the independent intake pipe 4 by supplying an air flow having directivity to a position where the intake valve 5 is positioned so that the slewing flow 9 is generated in the cylinder 6. Therefore, deflection of fuel spray can be prevented, and air-fuel mixture distribution in the combustion chamber is uniformed or the circumference of an ignition plug is enriched so that lean combustion can be stabilized.

29. 发明专利

JPH07133727A AIR INTAKE DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH07133727A
公开(公告)日：1995-05-23
申请号：JP27864993
申请日：1993-11-08
申请人： HITACHI LTD
发明人： OSUGA MINORU , SHIRAISHI TAKUYA , YAMAGUCHI JUNICHI , KOMURO RYOICHI , MOMONO MASAYOSHI
IPC分类号： F02B17/00 , F02B1/04 , F02B31/00 , F02B31/02 , F02B31/08 , F02B75/22 , F02M35/10 , F02M35/116 , F02M51/06 , F02M61/18 , F02M69/00 , F02M69/04
摘要： PURPOSE:To concentrate air-fuel mixture in the vicinity of the ignition plug position in a cylinder so as to improve ignitability at the time of lean combustion by preventing ununiformity of air-fuel mixture distribution inside the cylinder, uniformalizing it, and selecting supply direction of atomized fuel. CONSTITUTION:Fuel injected fro a fuel injection device 21 and atomized by colliding with an intake valve 14 flows into a combustion chamber 19 from this side of the intake valve 14. On the other hand, the high speed air flow from a bypass passage 10 flows from the ignition plug 16 side of the intake valve 14 into the combustion chamber 19, and then tumble flow is formed inside the combustion chamber 19. Consequently, ignitability is good since the air-fuel mixture distribution inside the cylinder can be uniformalized or, can be stratified, and further stable combustion with lean air-fuel mixture can be gained since the combustion is expedited by swirl flow generated inside the cylinder. Fuel consumption is then decreased, and additionally, quantities of HC and NOx can be remarkably decreased.

30. 发明专利

JPH05240131A 失效
公开(公告)号：JPH05240131A
公开(公告)日：1993-09-17
申请号：JP4275992
申请日：1992-02-28
申请人： HITACHI LTD
发明人： NOGI TOSHIJI , OSUGA MINORU , YAMAGUCHI JUNICHI , TANABE YOSHIYUKI , NAOI KEIGO , SHIZUKA MASAYUKI , TAWARA KAZUO
IPC分类号： F01N3/22 , F02B1/04 , F02B63/06 , F02M23/12 , F02M69/00 , F02M69/08 , F02N11/00 , F24F6/00
摘要： PURPOSE:To easily and surely drive an air pump without interfering with the operation of a starter motor nor switching power by driving the air pump with the starter motor at the time of starting an internal combustion engine, and supplying the power to the starter motor even after the start. CONSTITUTION:An air pump 2 is connected to a starter motor 1. The starter motor 1 connects a pinion gear 10 to a ring gear 7 by a pinion movable means 6. Further, a voltage is supplied from a battery 9 to the starter motor 1 and the pinion movable means 6 through a switching means 4. Namely, when a switch 4-b is ON, the voltage is supplied to the starter motor 1 through a voltage controlling means 5. When a switch 4-a is ON, on the other hand, the voltage is supplied to the pinion movable means 6. The switching means 4 is controlled by a control unit 3. Thus, the air pump 2 is driven by the starter motor 1 at starting, and the power is supplied to the starter motor even after the start to drive the air pump 2.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式