Patent 7424877 was granted and assigned to AVL (engineering company) on September, 2008 by the United States Patent and Trademark Office.
The invention relates to an internal combustion engine comprising a variable valve drive device provided with at least one camshaft having at least one cam arrangement. Said cam arrangement comprises a cam which can be displaced essentially radially in relation to the camshaft, and at least one, preferably two, base circle disks fixed to the camshaft.