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:
Sep. 28, 2004
Filed:
Nov. 05, 2003
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A vapor passage that makes communication between a fuel tank and a canister is provided. A purge passage that makes communication between the canister and an intake passage of an internal combustion engine is provided. A sealing valve that controls a communication state of the vapor passage and a purge VSV that controls a communication state of the purge passage are provided. A tank internal pressure sensor detects tank internal pressure Pt. The purge VSV is controlled to purge evaporated fuel into the intake passage during operation of the internal combustion engine. The sealing valve is opened/closed depending on whether a predetermined purge is performed in an area where the tank internal pressure Pt is positive.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile