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公开(公告)号：US20140043717A1
公开(公告)日：2014-02-13
申请号：US14000833
申请日：2012-03-02
IPC分类号： H01F38/12
摘要： An object of the present invention is to provide an ignition coil for use in an internal combustion engine, offering improved water drainage performance, while achieving high waterproof performance with controlled entry of water in a plug hole. A high-voltage generating section 3 that generates a high voltage is housed inside a coil case 4. A plug hole seal 5 closes an opening in a plug hole 2 in which an ignition plug 21 is mounted. The ignition coil further includes a space portion 6 placed on an outer side portion of the high-voltage generating section 3 and an air path 9 for venting air between the space portion 6 and the plug hole 2. The space portion 9 has an open lower surface (an entirely open surface facilitates demolding).
摘要翻译： 本发明的目的是提供一种用于内燃机的点火线圈，提供改善的排水性能，同时通过控制塞入孔中的水来实现高防水性能。 产生高电压的高电压产生部分3容纳在线圈壳体4的内部。塞孔密封件5封闭安装有火花塞21的插头孔2中的开口。 点火线圈还包括放置在高压发生部分3的外侧部分上的空间部分6和用于在空间部分6和插塞孔2之间排放空气的空气通道9.空间部分9具有开放的下部 表面（完全开放的表面有助于脱模）。
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公开(公告)号：US09147522B2
公开(公告)日：2015-09-29
申请号：US14000833
申请日：2012-03-02
摘要： An object of the present invention is to provide an ignition coil for use in an internal combustion engine, offering improved water drainage performance, while achieving high waterproof performance with controlled entry of water in a plug hole. A high-voltage generating section 3 that generates a high voltage is housed inside a coil case 4. A plug hole seal 5 closes an opening in a plug hole 2 in which an ignition plug 21 is mounted. The ignition coil further includes a space portion 6 placed on an outer side portion of the high-voltage generating section 3 and an air path 9 for venting air between the space portion 6 and the plug hole 2. The space portion 9 has an open lower surface (an entirely open surface facilitates demolding).
摘要翻译： 本发明的目的是提供一种用于内燃机的点火线圈，提供改善的排水性能，同时通过控制塞入孔中的水来实现高防水性能。 产生高电压的高电压产生部分3容纳在线圈壳体4的内部。塞孔密封件5封闭安装有火花塞21的插头孔2中的开口。 点火线圈还包括放置在高压发生部分3的外侧部分上的空间部分6和用于在空间部分6和插塞孔2之间排放空气的空气通道9.空间部分9具有开放的下部 表面（完全开放的表面有助于脱模）。
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公开(公告)号：US08528533B2
公开(公告)日：2013-09-10
申请号：US12877406
申请日：2010-09-08
摘要： In a plughole waterproofing device for an engine, a coil case is fitted onto the ignition coil that is accommodated in a plughole of an engine, and an upper portion of the case protruding above the engine is provided with a longitudinal air path extending upward from a lower end thereof communicating with the plughole and a vent hole communicating with an upper end portion of the air path and opened to ambient air. A cover wall hanging while surrounding the vent hole is continuously provided on the case upper portion, and an air chamber is formed inside the cover wall, the vent hole being opened in an upper portion of the air chamber, and an opening face being formed at an entire bottom of the air chamber opening toward the engine.
摘要翻译： 在用于发动机的插塞式防水装置中，线圈壳体装配在容纳在发动机的插孔中的点火线圈上，并且突出在发动机上方的壳体的上部设置有从 其下端与插孔连通，通气孔与空气路径的上端部连通并且与周围空气开放。 在壳体上部连续地设置围绕通气孔而悬挂的盖壁，在盖壁内部形成有空气室，该通气孔在空气室的上部开口，开口面形成在 空气室的整个底部朝向发动机开口。
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公开(公告)号：US09010306B2
公开(公告)日：2015-04-21
申请号：US13415252
申请日：2012-03-08
CPC分类号： F02P3/02 , H01F27/022 , H01F38/12
摘要： In an ignition coil for an internal combustion engine, a column section and a notched section are provided in a side wall section of a case section of the ignition coil. A ventilation opening is formed in an up/down direction in the column section. The ventilation opening communicates with a ventilation passage formed between a sealing rubber and the case section and is open in an upper end section. A cover surrounding the column section and covering the upper end section is provided in the side wall section. A sealing section sealing the notched section is provided in the cover. The ignition coil has a filler resin that fills a space within the case section being in continuous contact with the sealing section and the side wall section and fixing the cover to the side wall section.
摘要翻译： 在内燃机的点火线圈中，在点火线圈的壳体部的侧壁部设置有柱部和切口部。 在列部分中沿上/下方向形成通风口。 通风口与形成在密封橡胶和壳体部之间的通风通路连通，并且在上端部开口。 在侧壁部中设置有围绕柱部并覆盖上端部的盖。 密封切口部分的密封部分设置在盖子中。 点火线圈具有填充树脂，其填充与密封部分和侧壁部分连续接触的壳体部分内的空间，并将盖子固定到侧壁部分。
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公开(公告)号：US06858974B2
公开(公告)日：2005-02-22
申请号：US10272996
申请日：2002-10-18
申请人： Gakuji Moriya , Kenichi Ishida , Kazuyuki Kubo , Toshihiro Ohkama
发明人： Gakuji Moriya , Kenichi Ishida , Kazuyuki Kubo , Toshihiro Ohkama
摘要： A spark plug for internal combustion engine, which produces a spark discharge that ignites air-fuel mixture in the combustion chamber and causes combustion such that an ionic current flow during combustion can be utilized for detecting misfire of the engine. The spark plug the core connected to an ignition coil, a center electrode made of at least one of iridium and an iridium alloy and connected to the core through a seat, and a ground electrode separated from the center electrode with a gap. A sum of surface areas of the seat and the center electrode is not less than a prescribed value, specifically, is not less than 11.0 mm2, and more specifically, is not less than 11.47 mm2. Even when the diameter of the center electrode is reduced in the interest of improving ignition performance, improved ignition performance and improved ionic current detection accuracy can be achieved simultaneously.
摘要翻译： 一种用于内燃机的火花塞，其产生点燃燃烧室中的空气 - 燃料混合物并引起燃烧的火花放电，使得燃烧期间的离子电流流动可用于检测发动机的失火。 火花塞芯与点火线圈连接，中心电极由铱合金和铱合金中的至少一种制成，并通过座与芯体连接，接地电极与中心电极间隔开。 座椅和中心电极的表面积之和不小于规定值，特别是不小于11.0mm 2，更具体地，不小于11.47mm 2。 即使为了提高点火性能而减小中心电极的直径，也可以同时实现提高点火性能和提高的离子电流检测精度。
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公开(公告)号：US06803765B2
公开(公告)日：2004-10-12
申请号：US10022869
申请日：2001-12-20
IPC分类号： F02P1700
CPC分类号： F02P17/12 , F02P2017/006 , F02P2017/125 , G01L23/225 , G01M15/11
摘要： In a system for detecting misfire for an internal combustion engine wherein ionization current that flows following the discharge current is detected and integrated during a period (gate) and occurrence of misfire of the engine is detected based on the integrated value, a processing delay circuit is provided which inputs at least one of the discharge current or the ionization current and based on the inputted current, delays starting of the period by a time point which is not earlier than termination of the discharge current. With this, the system is unaffected by fluctuation in ignition coil discharge period, various kinds of noise and the like, and can therefore ensure accurate misfire detection by preventing erroneous detection owing to such causes.
摘要翻译： 在用于检测内燃机的失火的系统中，基于积分值来检测在一段时间（门）期间检测并积分在发动机失火发生之后流过的电流电流的内燃机，处理延迟电路是 只要输入至少一个放电电流或电离电流并且基于输入的电流，延迟该周期的开始时间点不早于放电电流的终止。 因此，该系统不受点火线圈放电期间的波动，各种噪声等的影响，因此可以通过防止由于这种原因的错误检测而确保准确的失火检测。
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公开(公告)号：US06691555B2
公开(公告)日：2004-02-17
申请号：US10180094
申请日：2002-06-27
申请人： Toshihiro Ohkama , Gakuji Moriya , Kenichi Ishida
发明人： Toshihiro Ohkama , Gakuji Moriya , Kenichi Ishida
IPC分类号： G01M1500
CPC分类号： F02P17/00 , F02P2017/125
摘要： A firing or ignition state discrimination system for an internal combustion engines having a spark plug which produces spark discharge when supplied with discharge current from an ignition coil to ignite air-fuel mixture in the combustion chamber. In the system, ionic-current that flows during combustion of the air-fuel mixture is detected at a predetermined first timing and leakage current that flows across electrodes of the spark plug is detected at a predetermined second timing which is later than the predetermined first timing. The firing or ignition state of the engine is discriminated to one from among normal, misfiring, spark plug fouling, and failure in ignition system or in fuel supply system based on the detected ionic-current and leakage current and presence or absence of fuel cutoff to the engine. With this, it becomes possible to accurately discriminates the firing or ignition state of the spark plug and to inform the fact to the vehicle operator if desired.
摘要翻译： 一种用于具有火花塞的内燃机的点火或点火状态鉴别系统，当从点火线圈供应放电电流以点燃燃烧室中的空气燃料混合物时，产生火花放电。 在系统中，在预定的第一定时检测在空燃混合物的燃烧期间流动的离子电流，并且在比预定的第一定时稍晚的预定的第二定时检测流过火花塞的电极的泄漏电流 。 基于检测到的离子电流和泄漏电流以及是否存在燃料切断至燃料供应系统，将发动机的点火或点火状态区分为普通的，失火的，火花塞结垢，点火系统故障或燃料供应系统中的一种 引擎。 由此，可以准确地识别火花塞的点火或点火状态，并且如果需要，则向车辆操作者通知事实。
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公开(公告)号：US06655367B2
公开(公告)日：2003-12-02
申请号：US10179384
申请日：2002-06-26
IPC分类号： F02P7077
CPC分类号： F02P13/00 , F02D2041/285 , F02D2400/18 , F02P3/02 , F02P17/12
摘要： An ignition coil unit to be installed in a hole opened through a cylinder head of an engine having a case, an ignition coil installed in the case and comprising a primary coil connected to a power source and a secondary coil connected to a spark plug which is installed in a combustion chamber of a cylinder of the engine for producing spark discharge to ignite air-fuel mixture to generate combustion thereof in the combustion chamber, and a circuit board on which an ionic-current detection circuit, connected to the secondary coil, which detects ionic-current that flows during the combustion of the air-fuel mixture; and a processing circuit, connected to the ionic-current detection circuit, which generates an output indicative of the detected ionic-current, are formed; In the unit, an igniter is also installed in the case, thereby improving detection accuracy of ionic-current and misfiring.
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