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. 12, 1980
Filed:
Mar. 20, 1979
Sadashichi Yoshioka, Aki, JP;
Toyo Kogyo Co., Ltd., Hiroshima, JP;
Abstract
A fuel intake system for a multi-cylinder internal combustion engine includes at least two intake passages leading to respective engine cylinders, and a shutter valve positioned within one of the intake passages for, when closed, allowing the entire amount of a combustible air-fuel mixture to be introduced into one of the engine cylinders communicated with the other of the intake passages. For operating the shutter valve, a composite negative pressure which is made up of a negative pressure, developed within the one of the intake passages at a position downstream of the shutter valve with respect to the direction of flow of the combustible air-fuel mixture towards the engine cylinders, and that developed within the other of the intake passages at a position downstream of a throttle valve, is utilized.