公开(公告)号：US07154213B2

公开(公告)日：2006-12-26

申请号：US10945876

申请日：2004-09-22

申请人： Toshiya Nakamura ,  Koji Yamanaka ,  Yoichi Matsushita ,  Yasunori Goda

发明人： Toshiya Nakamura ,  Koji Yamanaka ,  Yoichi Matsushita ,  Yasunori Goda

IPC分类号： H01T13/20

CPC分类号： H01T13/32

摘要： A spark plug for a gas engine includes a ground electrode body and a center electrode body. A ground electrode of the ground electrode body is welded on a surface of a ground electrode base material opposing to the center electrode body. The ground electrode protrudes toward the center electrode body. The ground electrode is made of a material containing iridium or platinum as a main component. The ground electrode base material is made of a heat-resistant nickel alloy. The ground electrode is impacted in a recess of the ground electrode base material. The spark plug satisfies a condition 0.3≦h/H≦0.5 when H represents the thickness of the ground electrode base material in an intrusion direction of the ground electrode, and h represents an intrusion length of the ground electrode that defines a length of the ground electrode impacted in the ground electrode base material in the intrusion direction.

摘要翻译： 用于燃气发动机的火花塞包括接地电极体和中心电极体。 接地电极体的接地电极焊接在与中心电极体相对的接地电极母材的表面上。 接地电极向中心电极体突出。 接地电极由含有铱或铂作为主要成分的材料制成。 接地电极基材由耐热镍合金制成。 接地电极被冲击在接地电极基体的凹部中。 当H表示接地电极的侵入方向上的接地电极母材的厚度时，火花塞满足条件0.3 <= h / H <= 0.5，h表示接地电极的入射长度， 接地电极在入射方向上撞击接地电极基体材料。

公开(公告)号：US20050062385A1

公开(公告)日：2005-03-24

申请号：US10945876

申请日：2004-09-22

申请人： Toshiya Nakamura ,  Koji Yamanaka ,  Yoichi Matsushita ,  Yasunori Goda

发明人： Toshiya Nakamura ,  Koji Yamanaka ,  Yoichi Matsushita ,  Yasunori Goda

IPC分类号： C22C5/04 ,  H01T13/20 ,  H01T13/32 ,  H01T13/39 ,  H01T21/00

CPC分类号： H01T13/32

摘要： A spark plug for a gas engine includes a ground electrode body and a center electrode body. A ground electrode of the ground electrode body is welded on a surface of a ground electrode base material opposing to the center electrode body. The ground electrode protrudes toward the center electrode body. The ground electrode is made of a material containing iridium or platinum as a main component. The ground electrode base material is made of a heat-resistant nickel alloy. The ground electrode is impacted in a recess of the ground electrode base material. The spark plug satisfies a condition 0.3≦h/H≦0.5 when H represents the thickness of the ground electrode base material in an intrusion direction of the ground electrode, and h represents an intrusion length of the ground electrode that defines a length of the ground electrode impacted in the ground electrode base material in the intrusion direction.

摘要翻译： 用于燃气发动机的火花塞包括接地电极体和中心电极体。 接地电极体的接地电极焊接在与中心电极体相对的接地电极母材的表面上。 接地电极向中心电极体突出。 接地电极由含有铱或铂作为主要成分的材料制成。 接地电极基材由耐热镍合金制成。 接地电极被冲击在接地电极母材的凹部中。 当H表示接地电极的侵入方向上的接地电极母材的厚度时，火花塞满足条件0.3 <= h / H <= 0.5，h表示接地电极的入射长度， 接地电极在入射方向上撞击接地电极基体材料。