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. 27, 1987
Filed:
Nov. 07, 1986
Applicant:
Inventors:
Kazumi Haruta, Obu, JP;
Shigeru Yoshida, Toyota, JP;
Assignee:
Aisan Kogyo Kabushiki Kaisha, Ohbu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123520 ; 123519 ;
Abstract
A system for reducing discharge of fuel vapor from a fuel tank of an internal combustion engine to the atmosphere. The system has only one canister which is connected at one side to a top portion of the tank and to the neck of the refueling opening portion of the tank by separate channels, and which is connected at its other side to a suction system of the engine by a purge channel. The system also has three-way electromagnetic valves which are respectively disposed in the channel connected to the neck of the refueling opening portion and in the purge channel, thereby controlling the flows of fuel vapor and purging air.