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51. 发明专利

JPH0842438A IGNITER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0842438A
公开(公告)日：1996-02-13
申请号：JP17727794
申请日：1994-07-28
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： FUKATSU KATSUAKI , SUGIURA NOBORU , YASUKURA YOICHI
IPC分类号： F02P15/00 , H01F30/00 , H01F38/12
摘要： PURPOSE:To make an ignition module inexpensively manufacturable in a simple construction and to secure its reliability, in this internal combustion engine igniter integrally built in with an ignition coil and the ignition module as one body. CONSTITUTION:In this igniter 1, a pocket part 6 is installed in a case 20 housing both primary and secondary coils 4 and 5, and an ignition module 2 is built in this pocket part 6. In this ignition module 2, a relay member 15 is clamped on a heat sink, and a connecting terminal 16 to be electrically connected to an inner terminal 11 is attached to the relay member 15, then the connecting terminal 16 and a hybrid integrated circuit substrate 1 2 are electrically connected by an aluminum wire 17. In addition, silicone gel 3 is filled up in an interspace at the side of this hybrid IC substrate 12 from the relay member 15 in the pocket part 6.

52. 发明专利

JP2009002215A Ignition coil for internal combustion engine 有权
标题翻译：内燃机用点火线圈
公开(公告)号：JP2009002215A
公开(公告)日：2009-01-08
申请号：JP2007163286
申请日：2007-06-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OTAKA YASUNORI , YASUKURA YOICHI , KOBAYASHI TAKANOBU
IPC分类号： F02P13/00 , H01F38/12
CPC分类号： H01F27/02 , F02F1/242 , F02P3/02 , H01F38/12
摘要： PROBLEM TO BE SOLVED: To solve the problem that quantity of immersing water is large if detergent such as car shampoo is contained in water splashing on a coil. SOLUTION: A water drain groove is formed at a plug hole seal side of a boundary part of a plug hole seal and an ignition coil device case. Transmission (penetration) of water to atmospheric side opening part 4a of an air passage 4 from the boundary part can be inhibited and a waterproofing property can be improved, thereby. A guide facilitating drain of water and a protruding rib blocking water if water directly drops to the atmospheric side opening part 4a of the air passage 4 are formed at the ignition coil device case side. Water draining effect can be improved further and waterproofing property can be improved further by providing a plurality of longitudinal slit grooves on an outer circumference part at the plug hole seal side. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了解决在水飞溅在线圈上的洗涤剂如汽车洗发剂的洗涤剂的量大的问题。解决方案：在塞孔密封件和点火线圈装置壳体的边界部分的塞孔密封侧形成排水槽。可以抑制水从边界部向空气通路4的大气侧开口部4a的透过（贯通），能够提高防水性。在点火线圈装置壳体侧形成有水排出的导向件和在水直接落到空气通路4的大气侧开口部4a的情况下阻塞水的突出肋。通过在插塞孔密封侧的外周部设置多个纵向狭缝槽，可以进一步提高排水效果，进一步提高防水性。版权所有（C）2009，JPO＆INPIT

53. 发明专利

JP2001254661A IGNITION DEVICE FOR INTERNAL COMBUSTION ENGINE AND IGNITION CONTROL CIRCUIT DEVICE 失效
公开(公告)号：JP2001254661A
公开(公告)日：2001-09-21
申请号：JP2000072500
申请日：2000-03-10
申请人： HITACHI LTD
发明人： YASUKURA YOICHI
IPC分类号： F02P15/00 , F02P13/00
摘要： PROBLEM TO BE SOLVED: To provide a small and low-cost ignition coil for an internal combustion engine. SOLUTION: A capacitor for absorbing radio noise is integrated with a resin mold type ignition control circuit device incorporated in the ignition coil.

54. 发明专利

JPH10340822A IGNITER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH10340822A
公开(公告)日：1998-12-22
申请号：JP15188097
申请日：1997-06-10
申请人： HITACHI LTD
发明人： YASUKURA YOICHI , NAKABAYASHI KENJI , SHIMADA JUNICHI
IPC分类号： F02P15/00 , H01F38/12
摘要： PROBLEM TO BE SOLVED: To make the electrical field strength of a center core uniform and to reduce the size of the core, and then, to improve the output and insulating property of the core, by providing a positioning section which performs the centering of the secondary coil bobbin of a center core. SOLUTION: Projections 30 are provided at several locations on the inside of a secondary bobbin 3 so as to position the planar section of an inserted center core 7 with the projections 30. The space factor of the bobbin 3 is increased against the inside diameter of the bobbin 3 by forming the cross section of the core 7 in a polygon which is made closer to a circle, and the core 7 is inserted into the bobbin 3 after molding the outer periphery of the core 7 with rubber. Since the core 7 can be formed in a cylindrical state when conductive rubber is used for molding the outer periphery of the core 7, the electric field impressed upon a secondary coil becomes uniform and the insulating property of an igniter can be improved. Since the center core 7 is provided with magnets 12 for generating magnetic fluxes in the direction opposite to that of magnetic fluxes generated from a primary coil 2 and minus magnetic fluxes are given to the core 7, the magnetization curve of the core 7 can be utilized from the negative side to the positive side and the output of the coil 2 can be increased.

55. 发明专利

JPH0917662A IGNITION DEVICE FOR INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPH0917662A
公开(公告)日：1997-01-17
申请号：JP16514195
申请日：1995-06-30
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： OISHI HIDETOSHI , SUGIURA NOBORU , WATANABE HIROSHI , YASUKURA YOICHI , KATAGISHI KENICHI , KONDO EIICHIRO
IPC分类号： F02P15/00 , H01F38/12 , H01F30/00
摘要： PURPOSE: To provide an ignition device for an internal-combustion engine, which excels in durability such as thermal shock resistance and insulation quality and has high reliability. CONSTITUTION: Air is prevented from entering a coil high-voltage part by disposing a center core 7, a low-voltage side core 18 or a high-voltage side core 9 inside a constituent member such as a primary bobbin 1, a secondary bobbin 3 or a case 5, containing it into a pocket formed in the constituent member or covering it with an elastic member to isolate a core from an epoxy resin 6 for insulation, thereby preventing air from entering the coil high-voltage part. Accordingly, bubbles are not left in the high-voltage part and an internal crack due to a thermal shock and the separation of the epoxy resin 6 for insulation and the constituent member can be prevented, thereby being able to enhance the thermal shock resistance and the insulating durability of a cylindrical ignition device.

56. 发明专利

JPH08339928A IGNITION COIL FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH08339928A
公开(公告)日：1996-12-24
申请号：JP14478695
申请日：1995-06-12
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： YASUKURA YOICHI , WATANABE HIROSHI , SUGIURA NOBORU , OISHI HIDETOSHI , ITO TAKASHI , KONDO EIICHIRO
IPC分类号： C08L81/02 , H01F27/32 , H01F30/00 , H01F38/12
摘要： PURPOSE: To reduce the thicknesses of a case and a primary bobbin and thereby reduce the size of the entire body of a component by forming the case and the primary bobbin of an ignition coil using polyphenylene sulfide resin. CONSTITUTION: A primary coil 5 and a secondary coil 7 are wound around bobbins 4 and 6 respectively and then are encased in a case 2. After that, cores 3a and 3b are assembled in the coils 5 and 7 respectively. Then, insulating material 8 is let to fill the case 2 so that the case 2 may have an insulating structure. The case 2 is then installed in a plug hole 12 of each cylinder. Especially, the primary bobbin 4 and the case 2 of an ignition coil 1 are formed of polyphenylene sulfide resin. As for the insulating material 8, thermosetting synthetic resin is used. By this, the primary bobbin 4 and the case 2 can have good electric characteristics including an excellent withstand voltage property and they can also have an excellent formability since they are made of polyphenylene sulfide resin. As a result, the size of the entire body of a component can be reduced without deteriorating electric characteristics because the thicknesses of the primary bobbin 4 and the case 2 can be made small.

57. 发明专利

JPH08293418A IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH08293418A
公开(公告)日：1996-11-05
申请号：JP9652795
申请日：1995-04-21
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： KONDO EIICHIRO , SUGIURA NOBORU , KOBAYASHI KAZUTOSHI , KATAGISHI KENICHI , YASUKURA YOICHI , OISHI HIDETOSHI , WATANABE HIROSHI
IPC分类号： F02P13/00 , F02P3/02 , F02P15/00 , H01F3/10 , H01F27/02 , H01F27/245 , H01F27/32 , H01F38/12 , H01F30/00
摘要： PURPOSE: To provide a small-size and light-weight ignition system for internal combustion engine which provides high outputs. CONSTITUTION: By magnetically coupling a center core 7 and a side core 8 by a low-tension side core 9 provided on a low-tension side of a secondary coil 4 and a high-tension side core 10 provided on a high-tension side of the secondary coil 4, a closed magnetic circuit is formed. A magnet 12 is put in a core gap portion 11.

58. 发明专利

JPH07269455A IGNITER OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH07269455A
公开(公告)日：1995-10-17
申请号：JP5914494
申请日：1994-03-29
申请人： HITACHI LTD
发明人： YASUKURA YOICHI , SUGIURA NOBORU , TAKAKU YUTAKA
IPC分类号： F02P3/04 , F02D45/00 , F02P17/12
摘要： PURPOSE:To enable an igniter to keep the operation of each cylinder appropriately even if an ionic current detector goes wrong as well as to promote its miniaturization. CONSTITUTION:In a four-cycle four-cylindered engine, a first cylinder 8a and a second cylinder 8b as well as a third cylinder 8c and a fourth cylinder 8d of 360 deg. in phase difference are paired each as a set, and in this formation, each of ionic current detectors 11a and 11b is installed in each of paired cylinders. In addition, a spark plug 4a is installed in one end of a secondary side coil 2a of an ignition coil 3a, and the other end is connected to another end of a secondary side coil 2b of an ignition coil 3b at the other side being paired. A contact 12a, where respective other ends of these paired secondary side coils 2a and 2b are connected to each other, is connected to the ionic current detector 11a on one side. In this connection, these two ionic current detectors 11a and 11b are installed on the same substrate, namely, they are unitized as one body.

59. 发明专利

JPH0526116A EGR CONTROLLER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0526116A
公开(公告)日：1993-02-02
申请号：JP18225891
申请日：1991-07-23
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： YASUKURA YOICHI , ENDO TETSUO
IPC分类号： F02M25/07
摘要： PURPOSE:To provide an EGR controller for carrying out stable control of good responsibility, which is not affected by driving condition. CONSTITUTION:An EGR control duty is calculated by varying a control calculation constant based on a deflection 5 between a target amount of intake air 4 and an actual amount of intook air 12 and on a rotational speed 1 and a load (throttle opening 2), and EGR control is carried out thereby. Since stable control of good responsibility suitable for each driving condition is carried out, accurate EGR control is thus achieved.

60. 发明专利

JPH04203271A METHOD AND APPARATUS FOR SENSING FIRE LOSS IN ENGINE WITH ION CURRENT SYSTEM 失效
公开(公告)号：JPH04203271A
公开(公告)日：1992-07-23
申请号：JP33218590
申请日：1990-11-29
申请人： HITACHI LTD
发明人： KOUHIRA TAKASHI , YASUKURA YOICHI
IPC分类号： F02P17/12 , F02D45/00 , F02P17/00
摘要： PURPOSE:To improve a fire loss sensing performance with an ion current system by a method wherein an operation for sensing ion current is carried out for every time band when a normal combustion is assumed and an ion current is expected as a normal current flow and a judgement of the fire loss in the engine is carried out if any of these detected values is less than a reference value. CONSTITUTION:A control device 1 generates an ignition time signal 11 in response to each of outputs of a crank angle sensor 2, an air flow rate sensor 3, a throttle sensor 4, a power supply voltage sensor 5 and a water temperature sensor 6. In turn, each of ion current sensing circuits 10 is disposed between a spark plug 12 of each of cylinders and a low voltage side of a secondary coil, respectively, and the ion current sensing circuit 10 is comprised of a capacitor 13, a resistor 14 and a diode 15 or the like. In this case, a normal combustion is assumed and an ion current sensing operation is carried out at plural times in a time range for every expected time band where the ion current is normally flowed. If the detected values at plural times are less than their set values, it is judged that the engine has a fire loss in it.

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