会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 10. 发明专利
    • Spark plug with thermal sensor
    • 火花塞与热传感器
    • JP2010049856A
    • 2010-03-04
    • JP2008211426
    • 2008-08-20
    • Ngk Spark Plug Co Ltd日本特殊陶業株式会社
    • SHIMANOUE YASUHIDEHIRAOKA HISAKAZU
    • H01T13/20C22C5/04G01K1/14H01T13/39H01T13/40
    • PROBLEM TO BE SOLVED: To provide a spark plug with a thermal sensor capable of more precisely carrying out temperature measurement, through restraint of spark exhaustion at the tip part of a center electrode.
      SOLUTION: The center electrode 20 has a contact point 71 of a thermocouple 70 formed inside a tip part 22. At the tip part, a ring-shaped electrode member 80 made of a precious metal alloy is fitted in such a form as to surround an outer periphery of the tip part 22 in a peripheral direction including an outer periphery edge 23 of a tip face 21 of a base material of the center electrode 20. An outer periphery edge 83 of a tip face 81 of the electrode member 80 forms an angle part at the tip part 22 of the center electrode 20. Spark discharge against a grounding electrode takes place with the angle part as a starting point, so that exhaustion of the center electrode 20 itself is restrained. Therefore, a state of thermal draw around the contact point 71 is hard to vary, so that a temperature indicating value measured by the thermocouple 70 is hard to vary even during a long period of use of the temperature-measuring plug.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:通过限制在中心电极的尖端处的火花放电,提供具有能够更精确地进行温度测量的热传感器的火花塞。 解决方案:中心电极20具有形成在尖端部分22内部的热电偶70的接触点71.在顶端部分,由贵金属合金制成的环形电极部件80以 围绕顶端部22的外周,包围中心电极20的基材的端面21的外周边缘23的周向。电极部件80的前端面81的外周缘83 在中心电极20的尖端部分22处形成角部分。以角部为起点,对接地电极进行火花放电,从而抑制中心电极20本身的耗尽。 因此,接触点71周围的热牵引状态难以变化,使得即使在温度测量插头的长时间使用期间,由热电偶70测量的温度指示值也难以变化。 版权所有(C)2010,JPO&INPIT