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  2. Iridium - Wikipedia

    en.wikipedia.org/wiki/Iridium

    Iridium is a chemical element; it has symbol Ir and atomic number 77. A very hard, brittle, silvery-white transition metal of the platinum group, it is considered the second-densest naturally occurring metal (after osmium) with a density of 22.56 g/cm 3 (0.815 lb/cu in) [8] as defined by experimental X-ray crystallography. [a] 191 Ir and 193 Ir ...

  3. Spark plug - Wikipedia

    en.wikipedia.org/wiki/Spark_plug

    Spark plug with single side electrode An electric spark on the spark plug. A spark plug (sometimes, in British English, a sparking plug, [1] and, colloquially, a plug) is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within ...

  4. Niterra - Wikipedia

    en.wikipedia.org/wiki/Niterra

    Niterra Co., Ltd. (⽇本特殊陶業株式社, Nippon Tokushu Tōgyō kabushiki gaisha) is a public company established in 1936 and based in Nagoya, Japan.Formerly known as NGK Spark Plug Co. Ltd., the company’s automotive business (with its brands NGK Ignition Parts and NTK Vehicle Electronics) revolves around the manufacturing and the sale of spark plugs and related products for internal ...

  5. Wasted spark system - Wikipedia

    en.wikipedia.org/wiki/Wasted_spark_system

    Wasted spark system. A wasted spark system is a type of ignition system used in some four-stroke cycle internal combustion engines. In a wasted spark system, the spark plugs fire in pairs, with one plug in a cylinder on its compression stroke and the other plug in a cylinder on its exhaust stroke. The extra spark during the exhaust stroke has ...

  6. Champion (spark plug) - Wikipedia

    en.wikipedia.org/wiki/Champion_(spark_plug)

    Champion spark plugs ad in 1947. Albert Champion Company was founded by Albert Champion in June 1905 in Boston 's South End, in the landmark Cyclorama Building, to import French electrical parts, including Nieuport components. Champion presided as president of the Albert Champion Company with partners Frank D. Stranahan as treasurer and younger ...

  7. Autolite - Wikipedia

    en.wikipedia.org/wiki/Autolite

    Autolite Spark Plugs are manufactured by FRAM Group, a company that also offers oil, air, fuel filters, as well as PCV valves and transmission modulators. FRAM Group is a subsidiary of the Rank Group, a New Zealand–based private investment company owned by Graeme Hart, formerly the richest person in New Zealand.