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发明授权
CN101663802B 直喷火花点燃系统 失效 - 权利终止

直喷火花点燃系统
摘要：
一种火花塞，包括中心电极和表面间隙接地电极，中心电极与纵向第一轴线基本上对齐，表面间隙接地电极沿着表面间隙电极第二轴线与所述中心电极径向对齐，所述表面间隙电极第二轴线基本上垂直于所述纵向第一轴线并穿过其。所述中心电极与所述表面间隙接地电极其间限定了径向火花间隙。所述火花塞还包括与所述中心电极径向对齐的J形间隙接地电极。所述中心电极与所述J形间隙接地电极其间限定了轴向火花间隙。所述J形间隙接地电极径向对齐布置具有从所述表面间隙电极第二轴线不大于约30度的角距。
摘要（英）：

A spark plug includes a center electrode substantially aligned with a longitudinal first axis and a surface-gap ground electrode radially aligned with the center electrode along a surface-gap electrode second axis substantially orthogonal to the longitudinal first axis and passing therethrough. The center electrode and the surface-gap ground electrode define a radial spark gap therebetween. The spark plug further includes a J-gap ground electrode radially aligned with the center electrode. The center electrode and the J-gap ground electrode define an axial spark gap therebetween. The J-gap ground electrode radial alignment has an angular separation from the surface-gap electrode second axis of no greater than about 30 degrees.

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