The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2026
Filed:
Feb. 12, 2024
Fukuta Electric & Machinery Co., Ltd., Tongluo Township, Miaoli County, TW;
Chin-Feng Chang, Tongluo Township, Miaoli County, TW;
Chih-Meng Chu, Tongluo Township, Miaoli County, TW;
Chen-Hui Chang, Tongluo Township, Miaoli County, TW;
Chien-Hsun Chen, Tongluo Township, Miaoli County, TW;
FUKUTA ELECTRIC & MACHINERY CO., LTD., Tongluo Township, TW;
Abstract
A rotor structure comprises core laminations, two ring covers, and a hollow shaft. The core laminations have a horizontal side with multiple equally angled lightening holes. Each ring cover has a horizontal inner surface that contacts the outermost horizontal side of the core lamination. The horizontal inner surface of the ring covers features guiding protrusions corresponding to the lightening holes. The guiding protrusions form grooves at their end surfaces that serve as oil inlets and outlets located along the inner and outer circumferential surfaces of the ring covers, respectively. The core laminations and the ring covers are mounted on the hollow shaft, and the oil inlet of the ring cover is fluidly connected to the oil injection hole of the hollow shaft. The guiding protrusions can slow down the flow velocity centrifugally to ensure the consistency of the oil inlet and outlet.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile