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. 02, 1996
Filed:
Nov. 30, 1994
Yoshitomo Fujimori, Saitama, JP;
Hiroaki Mihara, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
Plural canisters adsorb fuel vapor generating from a fuel tank (and a float chamber) while an engine stops. Purge means purge fuel vapor adsorbed in one or more canisters selected to be purged when the engine has been started. Unselected canister(s) is additionally selected as an object(s) for purging as the time elapses after the starting of the engine. At the initial purging stage, only fuel vapor adsorbed in the selected canister(s) is purged and gradually supplied to an inspire system, so as to prevent the air-fuel ratio from being over-rich especially at the start of the engine. Other canister(s) is subjected to purging thereafter, and eventually the fuel vapors adsorbed in all canisters are purged at the same time. Purging canister(s) is done in a short time and is made rather even.