Patent 7355500 was granted and assigned to Audi on April, 2008 by the United States Patent and Trademark Office.
The invention relates to an attachable rod ignition coil comprising an ignition coil part and an adapter provided with an ignition plug receiving element for fixing the adapter to an ignition plug. A shock-absorbing element is arranged between the ignition coil part and the adapter and/or between the adapter and the ignition plug receiving element.