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:
Jul. 15, 1997
Applicant:
Inventor:
Shinji Kamimaru, Higashi-Kurume, JP;
Assignee:
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02D / ; F01L / ;
U.S. Cl.
CPC ...
12333919 ; 123 9011 ; 12333914 ;
Abstract
During idling of an internal combustion engine, when there is a difference between an actual engine speed and a target idle speed which is preset in accordance with an engine load, the opening and closing timings of an intake/exhaust valve of the engine is changed in accordance with the difference between the actual engine speed and the target idle speed to change an intake air flow sucked into the engine. Therefore, it is not required to provide any apparatus, such as an ISC valve, provided in conventional systems, and it is possible to quickly adjust the engine speed so as to be equal to the target idle speed.