ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,020, issued on May 27, was assigned to AVL LIST GMBH (Graz, Austria).

"Liquid-cooled internal combustion engine" was invented by Martin Zapf (Au Bei Turnau, Austria) and Jurgen Gelter (Graz, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a liquid-cooled internal combustion engine, comprising:-a cylinder head having a top-down cooling concept, with a head cooling chamber with a first head partial cooling chamber spaced apart from the fire deck and with a second head partial cooling chamber, which adjoins the fire deck of the cylinder head and is separated from the first head partial cooling chamber by an intermediate ...