ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,964, issued on Sept. 23, was assigned to HANGZHOU QUADRANT TECHNOLOGY Co. LTD. (Zhejiang, China).
"Electric oil pump" was invented by Liping Wang (Zhejiang, China), Guojun Zhang (Zhejiang, China), Ruinan Wang (Zhejiang, China), Hezhao Hua (Zhejiang, China), Yi Zhao (Zhejiang, China) and Zhixue Lu (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric oil pump, including a pump housing, a fixed shaft in the pump housing, an inner gear eccentrically and rotatably connected to the fixed shaft, an outer gear coaxially connected to the fixed shaft and rotatably arranged in the pump housing, the outer gear is located at an outer peri...