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:
Dec. 28, 2004
Filed:
Dec. 22, 2003
Katsuyuki Ichinohe, Tokyo, JP;
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A fuel cut valve is disposed at a higher position than a fill up level in a fuel tank and communicates with an evaporative passage communicating between the fuel tank and a canister through an orifice. Further, a volume chamber is disposed at a higher position than the filling up level in the fuel tank and communicates with the evaporative passage downstream of the orifice. Further, a liquid level restricting valve is disposed in the vicinity of the fill up level and communicates with the evaporative passage through the volume chamber. When the liquid level of fuel reaches the fill up level at refueling, the liquid level restricting valve is closed to prevent overfilling of fuel by restricting the volume of the fuel vapor passing through the orifice. During traveling of a vehicle, fuel vapor is fed to the canister through the fuel cut valve and the liquid level restricting valve.