Ignition coil, spark plug, and ignition set-up including an ignition coil and spark plug

摘要

In an ignition coil having a high-voltage terminal and a spring for electrically connecting the high-voltage terminal to a spark plug, a contact segment of the spring, which is directed towards the spark plug, has an outer circumference that is reduced in comparison with an outer circumference of further segments of the spring. The spark plug has a contact region for contacting with the spring of the ignition coil, which contact region has a recess surrounded by a closed, annular wall region for receiving the contact segment of the spring of the ignition coil.

主权项

1. An ignition coil for connection to a spark plug, comprising:
a high-voltage terminal; and a spring electrically connecting the high-voltage terminal to the spark plug, wherein the spring has a contact segment which is directed towards the spark plug, and wherein the contact segment has an outer circumference smaller than an outer circumference of remaining segments of the spring, wherein the windings of the contact segment are formed to be non-compressible and are in contact with one another, and wherein the contact segment is designed to be shielded in the radial direction by means of a recess, provided in a contact region of the spark plug and having an annular wall region.