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:
Aug. 07, 2007
Filed:
Nov. 29, 2005
Applicants:
Kenji Date, Obu, JP;
Masaaki Kato, Kariya, JP;
Inventors:
Kenji Date, Obu, JP;
Masaaki Kato, Kariya, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a gas fuel engine, a first air-fuel mixture having a local excess air factor λ not less than 2 is combusted (a first combustion). When a target torque is not sufficiently obtained by the first combustion, a fuel is directly injected into a combustion chamber to form a second air-fuel mixture having a local excess air factor λ less than 1.1, so that a second combustion is performed. The combustion of the air-fuel mixture is switched from the first combustion to the second combustion in one combustion stroke.