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. 12, 2018
Filed:
Aug. 02, 2016
Ford Global Technologies, Llc, Dearborn, MI (US);
David S. Moyer, Sterling Heights, MI (US);
Shawn McGrath, Carleton, MI (US);
Roger Joseph Khami, Troy, MI (US);
Chris A. Myers, Holly, MI (US);
Robert Joseph Mohan, Canton, MI (US);
Steven James Hoffman, Ann Arbor, MI (US);
John Emley, Canton, MI (US);
Scott M. Rollins, Canton, MI (US);
Eric A. Macke, Ann Arbor, MI (US);
Matthew Werner, Marysville, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Vapors in the fuel tank of a vehicle are collected in a carbon canister. An ejector or aspirator is used to purge the carbon canister in a pressure-charged engine in which a positive pressure exists in the intake. A compact ejector includes a substantially planar flange and a venturi tube coupled to the flange with a central axis of the venturi tube substantially parallel to the flange. By manufacturing the ejector in two pieces, dimensions within the ejector: throat, converging section, and diverging section, is more accurate than prior art manufacturing techniques thereby providing better flow characteristics throughout the boost range.