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:
Jun. 16, 1998
Filed:
Feb. 13, 1997
Applicant:
Inventors:
Masaaki Yoshikawa, Iwata, JP;
Shigenobu Uchiyama, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F / ;
U.S. Cl.
CPC ...
123432 ;
Abstract
A five-valve per cylinder combustion chamber and intake passage arrangement. The side intake passages of the induction system are configured so that the flow exiting them extend toward each other at acute angles and intersect at a point outside of the cylinder bore axis for improving turbulence in the combustion chamber. A fuel injector is also provided which injects fuel only into the side intake passages.