ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,705, issued on Dec. 9, was assigned to SUNONWEALTH ELECTRIC MACHINE INDUSTRY Co. LTD. (Kaohsiung, Taiwan).
"Water pump structure and rotor thereof" was invented by En-Cheng Chang (Kaohsiung, Taiwan) and Ming-Tsung Li (Kaohsiung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A water pump structure and a rotor thereof are provided. The water pump structure includes a housing, a rotor, a stator, and an isolation component. The rotor is disposed in the housing. The rotor includes an impeller. The impeller has a central hole, an outer edge and at least one groove. The at least one groove is in communication with the central hole. The at least one ...