SPARK PLUG AND SOCKET
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United States of America Patent
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Apr 22, 2014
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Apr 22, 2014
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[PROBLEMS] An ignition plug is provided, in which a tip end part of a central electrode is not eroded and an electric power loss of the electromagnetic wave can be reduced, even in a case where a configuration is performed such that a high voltage for discharge and an electromagnetic wave are supplied from a terminal part side of an ignition plug. An electrode part 2 comprises a central electrode 2A including an electrode chip part for generating the spark discharge with the ground electrode 5, and a cylindrical insulating tube member 2B for covering the central electrode 2A. On the outer peripheral surface of the insulating tube member 2B, a conductive member 21 is provided so as to electrically connect the central electrode 2A with a terminal part 20 for receiving an electric power from the outside.
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