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:
Aug. 03, 1993
Filed:
Oct. 09, 1992
Toshiyuki Suga, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A fuel evaporative emission control system for an internal combustion engine using a gasoline-alcohol blend fuel. The system includes a canister for trapping fuel vapors to purge them into an air intake passage of the engine through a pipe. A valve is provided at the pipe for closing/opening the same to control purging of fuel vapors to the air intake passage. In the system, when the fuel property is found to be changed from alcohol concentration detected, the valve is opened if correction coefficient for air-fuel ratio determined from an oxygen content sensor's output is within a predetermined upper and lower limit, while the valve is closed if the coefficient falls outside the range, whereby preventing degradation of the exhaust gas properties, misfiring and the like.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile