专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH11148451A IGNITION DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH11148451A
公开(公告)日：1999-06-02
申请号：JP31742097
申请日：1997-11-18
申请人： HITACHI LTD , NISSAN MOTOR
发明人： UJIGAWA MASARU , KOBAYASHI KAZUTOSHI , KONDO EIICHIRO , TERAKADO TAKAO , UNNO YUJI
IPC分类号： F02P15/00 , H01F38/12
摘要： PROBLEM TO BE SOLVED: To easily perform the work by mounting a connector in a position overlapped with an igniter when observed from an point of the connector in the longitudinal direction of a coil part when the connector is mounted in parallel with the longitudinal direction of the coil part in a state that it is faced upward. SOLUTION: A connector pin 25 is located at a position overlapped with an igniter 20 when observed from an upper part from the side opposite to an igniter terminal 22 through a lower part of a base 26. On the other hand, the connector 25 is not overlapped with the igniter terminal 22, and a size of a head part of an ignition device in the direction perpendicular to the longitudinal direction of the coils 2, 4, that is, in the lateral direction, is reduced in a state that a space for the terminal connecting work is kept at an upper part of the igniter terminal 22, whereby the work can be easily performed without disturbance by an ignition device adjacent to the ignition device.

2. 发明专利

JP2000199470A IGNITION DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000199470A
公开(公告)日：2000-07-18
申请号：JP37230898
申请日：1998-12-28
申请人： NISSAN MOTOR
发明人： UNNO YUJI
IPC分类号： H01F38/12 , F02P3/00 , F02P15/00 , F02P15/10
摘要： PROBLEM TO BE SOLVED: To make ensuring the performance of an ignition device compatible with reducing the size thereof. SOLUTION: A cylindrical first ignition coil 5 is placed inside a steel pipe 4 which connects an ignition plug 2 mounted to a cylinder head 1 and a rocker cover 3. Being connected to the upper end of the first ignition coil 5, a box-like second ignition coil 6 is placed on the rocker cover 3. The first ignition coil 5 and the second ignition coil 6 are connected in parallel, providing multiple discharge characteristics.

3. 发明专利

JP2003264113A IGNITION COIL AND IGNITION DEVICE USING IT 审中-公开
公开(公告)号：JP2003264113A
公开(公告)日：2003-09-19
申请号：JP2002063604
申请日：2002-03-08
申请人： NISSAN MOTOR
发明人： UNNO YUJI
IPC分类号： F02P15/00 , H01F38/12
摘要： PROBLEM TO BE SOLVED: To easily and surely prevent a permanent magnet fixed to a magnet core of an ignition coil from deteriorating. SOLUTION: A primary coil that is wound around the outer periphery of the magnet core to send a primary current, a secondary coil in which a secondary voltage is generated by energizing/shutting off the primary current, and the permanent magnet that is fixed to one end of the magnet core to magnetize it in a direction reverse to the magnetization direction of the primary current energizing, are comprised. The magnet core is magnetically saturated with a primary current value at shutting-off. A ratio between an stress area of the magnetic core and a fixing area of the permanent magnet is so set that a magnetic field generated in the permanent magnet is smaller than a demagnetization limit magnetic field of the permanent magnet. COPYRIGHT: (C)2003,JPO

4. 发明专利

JPH10294228A IGNITION COIL FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH10294228A
公开(公告)日：1998-11-04
申请号：JP10119897
申请日：1997-04-18
申请人： HANSHIN ELECTRICS , NISSAN MOTOR
发明人： KIMURA HIROSHI , NOBUTOKI AKIKIMI , UNNO YUJI
IPC分类号： H01F38/12
摘要： PROBLEM TO BE SOLVED: To obtain a molded ignition coil for an internal combustion engine, which supplies a high voltage to a spark plug in order to generate a spark discharge, which can be miniaturized and made low-cost, and whose output is high. SOLUTION: An ignition coil for an internal combustion engine is provided with a coil body 1, which is formed in such a way that a primary coil 3 and a secondary coil 5 which are arranged and installed on an identical core tube are molded integrally of an insulating member and with laminated cores 10, 11, part of which faces the tube inner circumference of the primary coil 3, and in which a closed magnetic circuit is formed of the inside and the outside of the coil body 1. In this case, the laminated thickness of the laminated cores 10, 11 at the outside of the coil body 1 is made thicker than the laminated thickness of the laminated cores 10, 11 at the outside, and the width of the laminated cores 10, 11 at the outside is made thinner than the width of the laminated cores 10, 11 at the inside.

5. 发明专利

JPH11340065A IGNITION COIL FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH11340065A
公开(公告)日：1999-12-10
申请号：JP14451898
申请日：1998-05-26
申请人： HANSHIN ELECTRICS , NISSAN MOTOR
发明人： TOKIOKA MITSURU , TOGASAKI YOSHIHIRO , UNNO YUJI
IPC分类号： H01F38/12
摘要： PROBLEM TO BE SOLVED: To make an ignition coil small in size in both lengthwise and widthwise directions so as to form a compact ignition coil. SOLUTION: An ignition coil for internal combustion engine is provided with an opening on the bottom part 4n that is closed at one end 1m of a primary coil bobbin 1 fit to the inner circumference of a secondary coil bobbin 2, a case opening part 4m on the opposite side to the bottom 4m, and a penetrating cylinder 50 in an insulation case 4 filled with a thermosetting resin 8, in the cylinder 50 one end part 50e is open on the bottom 4n and the other end 50f is open on the case opening part 4m respectively. The other end part 1e of the primary coil bobbin 1 and the other end part 50f of the penetrating cylinder 50 are connected by a pan-shaped flange 20, and the inner circumference of the primary coil bobbin 1 and an iron core 3 penetrating the penetrating cylinder 50 are connected with each other through the lower side of the bottom 4n of the insulation case 4 and the inside 20a of the pn-like flange 20, thereby forming a closed magnetic circuit.

你已经成功收藏专利！

检索式保存成功!

IPRDB