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:
Jan. 23, 2001
Filed:
Mar. 30, 2000
Volvo Personvagnar AB, , SE;
Abstract
Apparatus is disclosed for venting a fuel tank including a canister containing an absorbent for fuel fumes, a sensor for detecting the filling of the fuel tank and emitting a signal based thereon, a first connection line for connecting the canister with the fuel tank and having a sufficient size to permit the free flow of gases from the fuel tank during filling of the fuel tank, the first connection line including a first valve operable between an open position and a closed position, the first valve normally being in the closed position and being actuatable into the open position by the signal thereby permitting the free flow of gas from the fuel tank through the first connection line during filling, a second connection line for connecting the canister with the fuel tank and connected to the first connection line between the first valve and the canister, the second connection line including a second valve including at least one restrictor for substantially limiting the flow of gases therethrough as compared to the first connection line when the first valve is in its open position, and a condenser for condensing fuel fumes passing through the second connection line such that the condensed fuel can return to the fuel tank.