US Patent Issued to Achates Power on April 29 for "Parent bore cylinder block of an opposed-piston engine" (Michigan, Indiana, Colorado Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,940, issued on April 29, was assigned to Achates Power Inc. (San Diego).

"Parent bore cylinder block of an opposed-piston engine" was invented by Andrew P. Perr (Columbus, Ind.), John J. Koszewnik (Colorado Springs, Colo.) and Gary A. Vrsek (Howell, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A parent bore cylinder block of an internal combustion, opposed-piston engine includes cooling passages that are formed using a 3-D printed casting core. The casting core can include portions that are ceramic. The parent bore cylinder block can include multiple cylinders, each cylinder with cooling passages and turbulence inducing features in those cool...