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.:

US 7412821 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 19, 2008

Filed:

Jan. 27, 2006
Applicants:

Koji Araki, Toyota, JP;

Yoshiyuki Shogenji, Toyota, JP;

Inventors:

Koji Araki, Toyota, JP;

Yoshiyuki Shogenji, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

An engine ECU executes a program including the step of performing an operation for rapid catalyst warm-up, under the conditions that an engine is started and rapid catalyst warm-up is necessary, by setting the ratio of fuel injection by an in-cylinder injector to be equal to or higher than that of an intake manifold injector and retarding the ignition timing to a large degree, and the step of performing normal operation under the condition that the catalyst is warmed up to be activated.


Find Patent Forward Citations

Araki, Koji. (2008). Control apparatus for internal combustion engine (U.S. Patent No. 7412821). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7412821

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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