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:
Apr. 05, 2005
Filed:
Aug. 07, 2002
Applicants:
Frank Warren Hunt, West Bloomfield, MI (US);
Shigeru Oho, Farmington Hills, MI (US);
Ayumu Miyajima, Farmington Hills, MI (US);
Inventors:
Frank Warren Hunt, West Bloomfield, MI (US);
Shigeru Oho, Farmington Hills, MI (US);
Ayumu Miyajima, Farmington Hills, MI (US);
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02D041/06 ; F02D009/00 ;
U.S. Cl.
CPC ...
Abstract
A fuel delivery system having an electronically controlled throttle valve operatively disposed in an intake manifold. An idle speed control valve is operatively disposed within a bypass gas flow passageway. A control system controls the actuation of both the throttle valve and idle speed control valve to control the delivery of a combustible charge to the internal combustion engine to maximize engine efficiency and minimize noxious emissions.