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. 29, 2006
Filed:
Jan. 21, 2005
Masayuki Tomita, Fujisawa, JP;
Masayuki Tomita, Fujisawa, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A control apparatus is configured to enhance turbulence in the cylinder produced by the fuel spray, and to improve combustion stability (promote flame propagation) in an ATDC designed to reduce HC and/or achieve early activation of the catalyst. Ignition timing is set to compression top dead center or later when for example the catalyst requires warming. In one fuel injection timing, a single fuel injection is injected prior to ignition timing at compression stroke top dead center or later. Alternatively, the fuel is injected in two fuel injections with a first fuel injection occurring during either the intake stroke or the compression stroke and the second fuel injection occurring at compression stroke top dead center or later.