ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,516, issued on Feb. 17, was assigned to Asimco Shuanghuan Piston Ring(yizheng) Co. Ltd. (Yizheng, China).
"Thermal ablation-resistant, wear-resistant, and friction-reducing coated piston ring, preparation method thereof and engine" was invented by Yueting Zhou (Yizheng, China), Qianxi Liu (Yizheng, China) and Jun Zhang (Yizheng, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A thermal ablation-resistant, wear-resistant, and friction-reducing coated piston ring, a preparation method thereof and an engine are provided. An outer circumferential surface of a piston ring material matrix includes, from bottom to top, a wear-resistant and friction-re...