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:
May. 10, 2005
Filed:
Sep. 27, 2002
Dequan Yu, Ann Arbor, MI (US);
Stephen Thomas Kempfer, Canton, MI (US);
Paul Edward Fisher, Dexter, MI (US);
Norman Nelson Krieger, Milford, MI (US);
David M. Dokas, Ann Arbor, MI (US);
DeQuan Yu, Ann Arbor, MI (US);
Stephen Thomas Kempfer, Canton, MI (US);
Paul Edward Fisher, Dexter, MI (US);
Norman Nelson Krieger, Milford, MI (US);
David M. Dokas, Ann Arbor, MI (US);
Visteon Global Technologies, Inc., Dearborn, MI (US);
Abstract
A regenerative fuel pump comprising a housing, a pump cover having a first flow channel formed therein, a pump body having a second flow channel formed therein whereby the first flow channel and the second flow channel define a pumping chamber, and an impeller mounted between the pump cover and pump body and including a plurality of vanes spaced circumferentially about the impeller and defining a plurality of vane grooves. The vanes are spaced un-evenly in a non-repeating pattern about the impeller. The first and second flow channels each include an inlet end, an outlet end, and a stripper area defined as the area between the inlet end and the outlet end extending from the inlet end away from the flow channel. Each of the stripper areas including a plurality of grooves formed therein adapted to dampen pressure pulsations within the pumping chamber.