公开(公告)号：US5520137A

公开(公告)日：1996-05-28

申请号：US430148

申请日：1995-04-26

申请人： Toshihiko Arii ,  Kensaku Takenaka ,  Yoshitada Hiramatsu ,  Masayuki Segawa ,  Hiromasa Sugimura ,  Ryohei Takeuchi ,  Kazuya Hatta ,  Katsuaki Fujiya ,  Yasuo Nakai

发明人： Toshihiko Arii ,  Kensaku Takenaka ,  Yoshitada Hiramatsu ,  Masayuki Segawa ,  Hiromasa Sugimura ,  Ryohei Takeuchi ,  Kazuya Hatta ,  Katsuaki Fujiya ,  Yasuo Nakai

IPC分类号： B63B1/12 ,  B63B1/24 ,  B63B1/28

CPC分类号： B63B1/24 ,  B63B1/121

摘要： A twin-hull boat equipped with a pair of transverse hydrofoils 4 and 5 which are respectively secured to the bottom surface of twin-hull structures 3A and 3B adjacent the stem and stern. A pair of auxiliary wings 6A and 6B are installed opposite to each other at predetermined positions on the internal wall surfaces of the twin-hull structures 3A and 3B mutually facing the hull center line and at a predetermined height between the upper water line formed in the course of low-speed cruising and the lower water line formed in the course of high-speed cruising. The twin-hull boat incorporates a postural angle regulating device 15 to properly regulate the postural angle of the auxiliary wings 6A and 6B by causing them to pivot about a horizontal axis.

摘要翻译： 一个双船船配备有一对横向水翼4和5，它们分别固定在船体结构3A和3B的靠近船尾和船尾的底面上。 一对辅助翼6A和6B在相互面对船体中心线的双壳体结构3A和3B的内壁表面上的预定位置处彼此相对地安装，并且在形成在船体中心线的上部水线之间的预定高度处 低速巡航过程和高速巡航过程中形成的较低水位线。 双壳船结合了姿势角调节装置15，以通过使它们围绕水平轴线枢转来适当地调节辅助翼6A和6B的姿势角度。

公开(公告)号：US06864622B2

公开(公告)日：2005-03-08

申请号：US10297201

申请日：2002-03-27

申请人： Wataru Matsutani ,  Masayuki Segawa ,  Satoko Ito ,  Osamu Yoshimoto

发明人： Wataru Matsutani ,  Masayuki Segawa ,  Satoko Ito ,  Osamu Yoshimoto

IPC分类号： H01T13/39 ,  H01T13/20

CPC分类号： H01T13/39

摘要： The object of the present invention is to provide a spark plug having a discharge portion formed of a noble-metal chip increased in the Ir content while reducing the content of expensive Rh, which can be restrained from generation of unusual wear in the form of eroding the circumferential side surface of the noble-metal chip and exhibits excellent wear resistance.In the present invention, the discharge portion (31) in the center electrode (3) side is formed of a noble-metal chip (31′) comprising an Ir-based alloy and the noble-metal chip (31′) contains 90% by weight or more of Ir as the main component and further contains 0.5% by weight or more of Rh and from 0.5 to 8% by weight of Ni, whereby the noble-metal chip (31′) [discharge portion (31)] can be ensured with good wear resistance, the generation of unusual wear which readily occurs on decreasing the Rh content can be prevented by the addition of Ni and in turn, a spark plug having high performance can be fabricated at a low cost.

摘要翻译： 本发明的目的是提供一种火花塞，其具有由稀土金属芯片形成的放电部分，其中Ir含量增加，同时降低昂贵的Rh的含量，其可以以侵蚀的形式抑制异常磨损的产生 贵金属芯片的周向侧面，耐磨性优异。在本发明中，中心电极（3）侧的排出部（31）由包含Ir的贵金属芯片（31'）形成 的贵金属片（31'）含有作为主成分的Ir占90重量％以上，还含有0.5重量％以上的Rh和0.5〜8重量％的Ni， 可以确保具有良好的耐磨性的贵金属芯片（31'）[排出部分（31）]，可以通过添加Ni并且随后的火花来防止在减少Rh含量时容易发生的异常磨损的产生 可以以低成本制造具有高性能的插头。

公开(公告)号：US06710523B2

公开(公告)日：2004-03-23

申请号：US09937003

申请日：2001-12-28

申请人： Masayuki Segawa ,  Wataru Matsutani

发明人： Masayuki Segawa ,  Wataru Matsutani

IPC分类号： H01T1320

CPC分类号： H01T13/20 ,  H01T13/39

摘要： A spark plug of the present invention is made of an Ir alloy including a specific amount of (1) Rh, (2) Pt, or (3) Rh and Pt or Rh and Ru. The spark plug comprises tips for a center electrode and for a ground electrode that are each 0.6 to 1.8 mm in diameter and 0.2 to 0.7 mm in thickness and for an interlayer made of an Ir alloy including Ni of 40 mass % that has a diameter slightly larger or smaller than that of each tip for the center electrode and for the ground electrode and has a thickness of 0.1 to 0.6 mm. These tips can be manufactured according to the powder processing method, the dissolution method, and so on. The tip for the center electrode is joined to the end surface of the basic body of the center electrode, which is made of a Ni alloy (Inconel 600), according to laser welding. The tip for the interlayer and the tip for the ground electrode are brought into contact with a predetermined position of the ground electrode, and are joined while being pressed according to electric resistance welding. Other parts, such as an insulator and main metal fittings, are each made of general materials and have a general structure. This spark plug is excellent in resistance to lead corrosion, and the tip for the ground electrode is prevented from peeling and falling off from the base because of a thermal expansion difference.

摘要翻译： 本发明的火花塞由包含特定量的（1）Rh，（2）Pt或（3）Rh和Pt或Rh和Ru的Ir合金制成。 火花塞包括中心电极和接地电极的尖端，其直径为0.6至1.8mm，厚度为0.2至0.7mm，并且由包含40质量％的Ni的Ir合金制成的中间层具有略微的直径 大于或小于用于中心电极和接地电极的每个尖端的厚度，并且具有0.1至0.6mm的厚度。 这些尖端可以根据粉末加工方法，溶解方法等来制造。 根据激光焊接，中心电极的端部与由Ni合金（Inconel 600）制成的中心电极的基体的端面接合。 用于中间层的尖端和接地电极的尖端与接地电极的预定位置接触，并且在被电阻焊接的同时被接合。 其他部件，如绝缘体和主金属配件，均由一般材料制成，具有一般结构。 该火花塞具有优异的耐铅腐蚀性，并且由于热膨胀差，防止了接地电极的尖端从基体剥离和脱落。

公开(公告)号：US06724133B2

公开(公告)日：2004-04-20

申请号：US09953173

申请日：2001-09-17

申请人： Naomichi Miyashita ,  Yoshihiro Matsubara ,  Wataru Matsutani ,  Masayuki Segawa ,  Hiroaki Kuki ,  Mamoru Musasa

发明人： Naomichi Miyashita ,  Yoshihiro Matsubara ,  Wataru Matsutani ,  Masayuki Segawa ,  Hiroaki Kuki ,  Mamoru Musasa

IPC分类号： H01T1320

CPC分类号： H01T13/52 ,  H01T13/39

摘要： A spark plug having a center electrode 2 formed from an electrode base material 2n, which is made of an Ni alloy containing an alloy component (e.g., Cr) capable of forming an oxide semiconductor having a resistivity of negative temperature coefficient. Thus, a corrosion suppression layer originating from the components of the electrode base material is formed on the surface of a tip end portion of the insulator 3, so that corrosion (channeling) of the surface of the tip end portion of the insulator 3 due to creeping spark discharge can be effectively suppressed. In addition, when the constituent metal of the electrode base material 2n has a coefficient of thermal conductivity of 17 to 30 W/m·K, the heat transfer performance of the electrode is enhanced, so that durability against electrode consumption can be greatly improved.

摘要翻译： 一种火花塞，其具有由电极母材2n形成的中心电极2，该电极基体材料由含有能够形成具有负温度系数的电阻率的氧化物半导体的合金成分（例如Cr）的Ni合金制成。 因此，在绝缘体3的前端部的表面上形成起因于电极基体的部件的腐蚀抑制层，由此导致绝缘子3的前端部的表面的腐蚀（沟通） 可以有效地抑制蠕动火花放电。 此外，当电极母材2n的构成金属的导热系数为17〜30W / m·K时，电极的传热性能提高，能够极大地提高耐电极消耗的耐久性。

公开(公告)号：US06664719B2

公开(公告)日：2003-12-16

申请号：US10106249

申请日：2002-03-27

申请人： Wataru Matsutani ,  Masayuki Segawa ,  Satoko Ito

发明人： Wataru Matsutani ,  Masayuki Segawa ,  Satoko Ito

IPC分类号： H01T1320

CPC分类号： H01T13/39

摘要： A spark plug having a discharge portion formed of a noble-metal chip, the spark plug being capable of restraining wear observed on a slenderized discharge portion in particular. Discharge portion (31) includes noble-metal chip (31′). Dimension D is 0.3-0.8 mm; and H is 0.4-2 mm, where D (mm) is a diameter representing the outside diameter of the noble-metal chip, and H (mm) is a discharge portion thickness representing the shortest distance between the periphery of a discharge face (31t) and a corresponding end edge of a weld zone W where a center electrode (3) and the noble-metal chip (31′) are welded. Further, the noble-metal chip (31′) contains a predominant amount of Ir and 0.5-8% by weight Ni.

摘要翻译： 一种具有由贵金属芯片形成的放电部分的火花塞，该火花塞特别能够抑制在细长的放电部分上观察到的磨损。 放电部（31）包括贵金属芯片（31'）。 尺寸D为0.3-0.8mm; H为0.4-2mm，其中D（mm）为代表贵金属芯片外径的直径，H（mm）为排出面（31t）的周边之间的最短距离的排出部分厚度 ）和焊接区域W的对应的端部边缘，其中中心电极（3）和贵金属芯片（31'）被焊接。 此外，贵金属片（31'）含有主要量的Ir和0.5-8重量％的Ni。