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:
Oct. 09, 1984
Filed:
Dec. 20, 1982
Hidemi Oonaka, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
A fuel evaporation gas treating device arranged such that when a vehicle engine is operated a heat-sensitive means detects the temperature around the engine and the fuel system and the like, and if the temperature is within a proper temperature range, a changeover valve allows a carburetor bore and a canister to communicate with each other so that a fuel evaporation gas in the canister is introduced into the carburetor bore and burned through reduction, and on the other hand, when the detected temperature is higher or lower than the optimum value, the changeover valve causes the canister and the carburetor bore to be shut off from each other as well as allows the canister and the atmospheric air vent to communicate with each other so that the secondary air is introduced into the carburetor bore, thereby to make it possible to automatically control the introduction of the evaporation gas and the secondary air into the carburetor bore.