ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,347, issued on April 14, was assigned to Shanghai Wave Rider Fluid Technology Co. Ltd. (Shanghai).

"Water-lubricated high-pressure pump using rolling support" was invented by Fan Zhang (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure discloses a water-lubricated high-pressure pump using rolling support, including a driving mechanism, a shell, a rolling bearing, an isolation structure, at least one plunger and a plunger chamber. The driving mechanism includes a main shaft and at least one eccentric structure, and the main shaft is rotationally connected to the shell through the rolling bearing. The eccentric structure is locat...