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:
Apr. 06, 2010
Filed:
Mar. 20, 2007
Roy A. Giacomazzi, Auburn Hills, MI (US);
Eugene V. Gonze, Pinckney, MI (US);
Gregory E. Rich, New Baltimore, MI (US);
Bernard Toton, Holly, MI (US);
Roy A. Giacomazzi, Auburn Hills, MI (US);
Eugene V. Gonze, Pinckney, MI (US);
Gregory E. Rich, New Baltimore, MI (US);
Bernard Toton, Holly, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A vapor fuel recovery system for fuel tanks is provided. The vapor recovery system comprises: a canister that captures vapor fuel expelled from the fuel tank; a vent valve that controls ventilation of vapor fuel from the fuel tank to the canister; and a vent bypass disposed between the canister and the vent valve that controls the flow of vapor fuel from the fuel tank to the on-board recovery canister when a fuel level in the fuel tank is full. The bypass includes a bypass valve and at least one orifice.