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:
Mar. 17, 1992
Filed:
Sep. 10, 1990
Applicant:
Inventors:
Yu Motoyama, Iwata, JP;
Ryusuke Kato, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123305 ; 123339 ; 123501 ;
Abstract
A fuel injection system and control for a two cycle crankcase compression internal combustion engine wherein air and fuel are directly injected into the combustion chamber of the engine and the idle speed is maintained constant by varying the timing of fuel injection. Fine tuning of the idle speed is further accomplished by changing the duration of fuel injection under certain conditions.