ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,226, issued on July 8, was assigned to Stanadyne Operating Co. LLC (Jacksonville, N.C.).
"Compact EGR valve" was invented by Nicola Fachechi (Royal Oak, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A compact EGR valve uses a BLDC motor to drive a valve member between a closed position blocking flow of exhaust gases and a range of open positions where exhaust gasses flow through the valve. A drive mechanism includes a nut in a fixed position and a screw arranged to rotate within the nut so that rotation of the screw causes the screw to move axially relative to the nut. The screw is coupled to a valve member and the valve member moves axially a...