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:
Jul. 17, 2007
Filed:
Aug. 16, 2005
Tsutomu Murakami, Kanagawa, JP;
Naohiro Ikeda, Kanagawa, JP;
Tsutomu Murakami, Kanagawa, JP;
Naohiro Ikeda, Kanagawa, JP;
Nikki Co. , Ltd., , JP;
Abstract
An injection timing for supplying a fuel by one injection per two rotations to a single-cylinder four-cycle engine of a fixed spark advance ignition system is decided on the basis of a simple system. With respect to ignition signals A, B, A, B, . . . generated every one rotation of the engine, an intake pipe pressure lowering state exists in one ignition signal cycle A-B, and the intake pipe pressure lowering state does not exist in the next ignition signal cycle B-A. The signal Bcorresponds to a terminal phase of an exhaust stroke and the signal Acorresponds to a terminal phase of a compression stroke if these two conditions are established, and an injection timing is decided on the basis of the determination in such a manner that the fuel injection burnt by the ignition of Ais executed at one time during two rotations.