ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,130, issued on Feb. 24, was assigned to KS Kolbenschmidt GmbH (Neckarsulm, Germany).
"Cylinder liner and internal combustion engine" was invented by Wolfgang Hanke (Nordheim, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cylinder liner (8) for an internal combustion engine (7), comprising a middle axis (9), and an inner surface (11) running around the middle axis (9). The inner surface (11) comprises a first zone (21), and a second zone (22), which differs from the first zone. The first zone (21) comprises a reduced peak height Rpk of less than 0.2 micro metre, a core roughness depth Rk of 0.05 to 0.35 micro metre and a reduced groove dep...