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:
Feb. 04, 1986
Filed:
Oct. 12, 1984
Applicant:
Inventor:
Keiichi Sugiyama, Shizuoka, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123 / ; 1231 / ; 1231 / ; 123442 ;
Abstract
An induction system for a multiple cylinder internal combustion engine wherein the manifold and cylinder head intake passages of the respective cylinders are divided into two parts by a partition. A load responsive throttle valve controls the flow to the induction passage parts to that the low speed charge requirements are supplied through only one part of the induction passage and the wide open charge requirements are supplied through both parts to achieve maximum power without sacrificing low speed running at a low cost.