ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,282, issued on June 3, was assigned to Deutz AG (Cologne, Germany).

"Cylinder head" was invented by Alfred Inden (Pulheim, Germany), Daniel Bertram (Bergheim, Germany) and Gerald Leyh (Michelfeld, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An internal combustion engine-includes at least one cylinder crankcase, at least one cylinder head (2) including at least one valve cover (1), charge-cycle valves, a valve train-assembly, injectors (3), an injector cable harness, injection lines (4), a fuel rail (5) and a pre-separator for separating the oil aerosols present in the blow-by volume flow being situated in the cylinder head (2)."

The paten...