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1.发明授权Integrated spark plug ignition coil with pressure sensor for an internal combustion engine 失效具有用于内燃机的压力传感器的集成火花塞点火线圈
公开(公告)号：US6119667A
公开(公告)日：2000-09-19
申请号：US359188
申请日：1999-07-22
CPC分类号： F02P13/00 , F02D35/023 , H01T13/44
摘要： An ignition coil, spark plug, and pressure sensor for an internal combustion engine are integrated into a single assembly and mounted directly on a plug hole of an internal combustion engine. A hard spark plug shell serves as a magnetostrictive section for pressure detection. A radially polarized biasing magnet is disposed adjacent the spark plug shell thereby generating an initial flux through a sensing winding. The sensing winding is wound about the lower end of the coil case to sense changes in the induction characteristics of the spark plug shell as a result of pressure changes in the cylinder. A first passive method of sensing pressure whereby the flux change due to the permeability change generates a signal voltage in the sensed coil. This voltage is proportional to the time rate of change of pressure which is integrated to produce a cylinder pressure waveform. A second active method employs an oscillator to drive the sensing circuit with a frequency at least ten times that of the pressure signal content. The frequency or amplitude of this signal is then modulated in response to the induction property change of the spark plug shell the induction changes The second method is capable of detecting both static and dynamic pressure.
摘要翻译： 用于内燃机的点火线圈，火花塞和压力传感器被集成到单个组件中并直接安装在内燃机的塞孔上。 硬火花塞壳用作用于压力检测的磁致伸缩部分。 径向偏振的偏置磁体设置在火花塞外壳附近，从而通过感测绕组产生初始磁通。 感测绕组围绕线圈壳体的下端缠绕以感测由于气缸中的压力变化引起的火花塞壳体的感应特性的变化。 感测压力的第一被动方法，由此由于磁导率变化引起的磁通量变化在感测到的线圈中产生信号电压。 该电压与集成的压力的时间变化率成比例，以产生气缸压力波形。 第二主动方法采用振荡器以至少10倍于压力信号内容的频率驱动感测电路。 然后，响应于火花塞壳的感应特性变化，该信号的频率或振幅被调制为感应变化。第二种方法能够检测静态和动态压力。
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公开(公告)号：US06215385B1
公开(公告)日：2001-04-10
申请号：US09438876
申请日：1999-11-12
申请人： Jeffrey Dan Ogden
发明人： Jeffrey Dan Ogden
IPC分类号： H01F2702
CPC分类号： H01F38/12 , H01F2038/122
摘要： An ignition coil has concentrically arranged components including a core, a secondary winding spool adjacent to the core, a secondary winding wound on the spool, a case made of electrical insulating material, a primary winding wound on an outer surface of the case, and a shield disposed radially outwardly of the primary winding. The case is configured so as to allow the primary winding to be wound thereon and to space the shield a predetermined space from the primary winding. A radially inner surface of the case and a radially outer portion of the secondary winding define a single potting channel for receiving an epoxy potting material. The configuration eliminates the primary winding spool, which reduces material cost, and further eliminates the effective dielectric contribution of the primary winding spool for reduced capacitance to thereby provide improved secondary winding output.
摘要翻译： 点火线圈具有同心布置的部件，包括芯部，与芯部相邻的次级绕组线轴，缠绕在线轴上的次级绕组，由电绝缘材料制成的壳体，缠绕在壳体的外表面上的初级绕组，以及 屏蔽件设置在初级绕组的径向外侧。 壳体被构造成允许初级绕组被缠绕在其上并且使屏蔽件与初级绕组隔开预定的空间。 壳体的径向内表面和次级绕组的径向外部部分限定了用于接收环氧灌封材料的单个灌封通道。 该构造消除了初级绕组线轴，这降低了材料成本，并且进一步消除了用于降低电容的初级绕组线圈的有效介电贡献，从而提供了改进的次级绕组输出。
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公开(公告)号：US6087918A
公开(公告)日：2000-07-11
申请号：US420739
申请日：1999-10-20
摘要： An ignition coil is secured to an internal combustion engine by a twist lock connection. The twist lock connection is defined by a first connection feature comprising a plurality of tabs extending radially outwardly from a cylindrical body portion of the ignition coil, and a second connecting feature comprising a corresponding plurality of camming surfaces having a ramp shape and terminating in a mechanical stop.
摘要翻译： 点火线圈通过扭锁连接固定在内燃机上。 扭转锁定连接由第一连接特征限定，第一连接特征包括从点火线圈的圆柱形主体部分径向向外延伸的多个突片，以及第二连接特征，包括相应的多个凸轮表面，其具有斜坡形状并终止于机械 停止。
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