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公开(公告)号：EP0699870B1
公开(公告)日：1998-06-10
申请号：EP95202127.7
申请日：1995-08-03
CPC分类号： F01N3/2033 , F02P17/12 , F02P2017/003 , F23N5/123 , F23N2027/36 , F23N2037/12 , F23N2041/14 , Y02T10/26
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公开(公告)号：EP0678670A3
公开(公告)日：1996-07-31
申请号：EP95200624.5
申请日：1995-03-16
发明人： Bracken, Norman H.
CPC分类号： F02P7/035 , F02B2075/027
摘要： An ignition system for an internal combustion engine which discharges only one spark plug (66 or 68) at a time. A high-level reversible voltage potential is selectively induced in the secondary winding (60) of an ignition coil (54). Opposing diodes (62 and 64) connected to the secondary winding permit application of the induced voltage across only one of two spark plug gaps, the central electrode of the spark plug being negatively charged with respect to ground to effectuate discharge with reduced power requirements and electrode erosion.
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公开(公告)号：EP0699870A1
公开(公告)日：1996-03-06
申请号：EP95202127.7
申请日：1995-08-03
CPC分类号： F01N3/2033 , F02P17/12 , F02P2017/003 , F23N5/123 , F23N2027/36 , F23N2037/12 , F23N2041/14 , Y02T10/26
摘要： The present invention is directed to an electrical circuit (58) for detecting the presence of combustion within a catalytic converter preheater (10). Combustion of an air/fuel mixture within the preheater results in a wide-band high voltage RF signal across a spark plug gap disposed within the preheater, which is trapped by an ignition coil (30) coupled to the spark plug (28) for energizing the spark plug gap. The presence of combustion will effectuate an elimination or absorption of one or more specific frequencies within the RF voltage band. By coupling a combustion detection circuit comprising an inductor-capacitor (L-C) (80)-(82) or resistor-inductor-capacitor (R-L-C) (94), (92), (96) network between ground and a low voltage output terminal of a secondary winding (50) of the ignition coil, and properly tuning the network components to one of the specific absorption frequencies, an output voltage of the combustion detection circuit during discharge of the spark plug will be responsive to the absence or presence of combustion in the burner. The output voltage is characterized by (i) a high voltage spike in the absence of combustion during discharge of the spark plug, and (ii) a low voltage spike in the presence of combustion during discharge of the spark plug. A comparator means compares the output voltage with a predetermined threshold voltage and generates a binary high voltage pulse upon the occurrence of a misfire.
摘要翻译： 该电路包括耦合在接地与次级绕组的点火线圈的并产生一个第一电压的低电压输出端子之间的第一电路。 第一电路有一个固有频率所有这一切都被调谐到特定频率，所有这些是（i）所述火花装置的放电过程中在燃烧器的空气/燃料混合物的燃烧的存在不存在，和（ii）存在于无 的火花装置的放电过程中在燃烧器中的空气/燃料混合物的燃烧。 第二电路被耦合到所述第一电路，用于整流所述第一电压和产生一个第二电压具有（i）所述火花装置的放电过程中在没有燃烧的高电压尖峰，和（ii）低的电压尖峰的存在 的火花装置的放电过程中燃烧。 高电压尖峰和低电压尖峰是一个正和负极性之一。
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4.发明公开
公开(公告)号：EP0678670A2
公开(公告)日：1995-10-25
申请号：EP95200624.5
申请日：1995-03-16
发明人： Bracken, Norman H.
CPC分类号： F02P7/035 , F02B2075/027
摘要： An ignition system for an internal combustion engine which discharges only one spark plug (66 or 68) at a time. A high-level reversible voltage potential is selectively induced in the secondary winding (60) of an ignition coil (54). Opposing diodes (62 and 64) connected to the secondary winding permit application of the induced voltage across only one of two spark plug gaps, the central electrode of the spark plug being negatively charged with respect to ground to effectuate discharge with reduced power requirements and electrode erosion.
摘要翻译： 用于内燃（IC）发动机的无分配器点火系统，一次只能排放一个火花塞。 在点火线圈的次级绕组中选择性地感应的高电平可逆电压电位。 连接到次级绕组的相反的二极管允许仅通过两个火花塞间隙中的一个施加感应电压，火花塞的中心电极相对于地面带负电，以降低功率需求和电极侵蚀来实现放电。
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