Spark ignition plug for internal combustion engine has insulating body containing electrode and made of material with relative dielectric constant of less than four or between two and three

摘要

The ignition plug has an insulating body (3) arranged in a housing (7) and an electrode (5) arranged in the insulating body. The insulating body consists of a material with a relative dielectric constant of less than four or between two and three. The insulating body can contain Teflon (RTM) or a material with similar electrical properties as Teflon (RTM). The spark may jump from the central electrode to the top of the piston. AN Independent claim is also included for the following: an arrangement for implementing the method.