ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,913, issued on March 25, was assigned to VOLVO TRUCK Corp. (Gothenburg, Sweden).

"Method of controlling an exhaust valve arrangement" was invented by Stephen Malick (Stokesdale, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of controlling an exhaust valve arrangement of an internal combustion engine is provided. The exhaust valve arrangement is operable to direct combusted exhaust gas out from a combustion chamber of the internal combustion engine. The exhaust valve arrangement comprises a first exhaust valve and a second exhaust valve. The method includes determining a pressure level in the combustion chamber during compression rele...