Ignition device, in particular, spark plug
OwnerCarsten Venn, Klaus Hrastnik +2inventors
InventorsCarsten Venn, Klaus Hrastnik, Thomas Jaeger, Hellmut Schmid
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Abstract
In an ignition device, especially a spark plug (10), having a housing (12) that is provided with a screw-in thread (14), a permanent sticking or contact corrosion of the spark plug in the cylinder head is to be prevented. For this purpose, it is provided that the housing, at least in the region of the screw-in thread, include a coating (26) of a varnish provided with nonstick pigments.
Claims9
An ignition device, especially a spark plug (10), having a housing (12) which is provided with a screw-in thread (14),
- wherein the housing, at least in the region of the screw-in thread, includes a coating (26) of a varnish provided with nonstick pigments.
The ignition device as recited in one of the preceding claims,
- wherein the varnish coating (26) is additionally provided with metal pigments.
The ignition device as recited in one of the preceding claims,
- wherein the varnish coating (26) has a composition by which in addition a corrosion protection is achieved.
The ignition device as recited in one of the preceding claims,
- wherein the varnish includes a binding agent which allows a rapid hardening with the aid of UV-radiation, IR-radiation or by induction drying.
Dependencies are inferred from the claim text.