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  2. 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 ...

  3. Denso - Wikipedia

    en.wikipedia.org/wiki/Denso

    DENSO Corporation (株式会社デンソー, Kabushiki-Gaisha Densō) is a global automotive components manufacturer headquartered in the city of Kariya, Aichi Prefecture, Japan. [4] After becoming independent from Toyota Motor, the company was founded as Nippon Denso Co. Ltd. (日本電装株式会社, Nippon Densō Kabushiki-Gaisha) in 1949.

  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. 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 ...

  6. 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 ...

  7. Isotopes of iridium - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_iridium

    Iridium-192 (symbol 192 Ir) is a radioactive isotope of iridium, with a half-life of 73.83 days. [10] It decays by emitting beta (β) particles and gamma (γ) radiation. About 96% of 192 Ir decays occur via emission of β and γ radiation, leading to 192 Pt. Some of the β particles are captured by other 192 Ir nuclei, which are then converted ...

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