SPARK PLUG

摘要

A spark plug (1) for an internal combustion engine,which spark plug (1) comprises a body (3), a center electrode (4), a side electrode (5), a thread (24) arranged around the outer surface of the spark plug body (3)and an insulating layer (11) arranged between the center electrode (4) and the body (3). At least part of the spark plug (1) is made of a material with high thermal conductivity to increase heat transfer away from the side electrode (5).