H - Electricity – 01 – T
Patent
H - Electricity
01
T
123/208
H01T 13/20 (2006.01) H01T 13/32 (2006.01) H01T 13/39 (2006.01)
Patent
CA 1328587
ABSTRACT A spark plug has a metallic shell which is made of material having a tensile stress of more than 40 Kg/mm2 with a thermal conductivity of more than 60 W/m?k. According to other spark plug, there is provided a ground electrode which is made of nickel or nickel alloy. The ground electrode is connected to the metallic shell through a metallic ring which is made of different metal from the metallic shell such as steel, stainless steel or nickel alloy.
608765
Kozuka Kazuhiko
Oshima Takafumi
Marks & Clerk
Ngk Spark Plug Co. Ltd.
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