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. 30, 1988
Filed:
Mar. 30, 1987
Applicant:
Inventors:
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Itawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123432 ; 123 9023 ; 123 9027 ;
Abstract
A compound induction system for an internal combustion engine embodying at least two intake passages serving each combustion chamber. A throttle valve arrangement is incorporated for controlling the flow through one of the intake passages and this throttle valve is opened in a staged sequence so that that induction passage will not act as a side branch resonant chamber under any experienced running conditions.