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:
Aug. 08, 2006
Filed:
Jan. 23, 2003
Albert Cheuk-yin Wong, Saginaw, MI (US);
Tom Cheuk-in Wong, Saginaw, MI (US);
Albert Cheuk-Yin Wong, Saginaw, MI (US);
Tom Cheuk-In Wong, Saginaw, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A vane pump includes a cylindrical rotor rotatable inside of an oval-shaped rotor chamber of cam ring disposed between a pressed plate and a pressure plate. The rotor has opposite sides and a peripheral outer surface in which radial vane slots are formed and guide slideable vanes. The rotor is coated on its surfaces with a film of abradable coating material which reduces the operating clearance between the rotor and the thrust and pressure plates and cam ring so as to increase the volumetric efficiency of the pump.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile