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:
Oct. 29, 2002
Filed:
Dec. 29, 2000
Applicant:
Inventors:
Shizuo Sasaki, Numazu, JP;
Takekazu Ito, Shizuoka-ken, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 1/310 ; F02M 2/506 ; F02M 2/507 ;
U.S. Cl.
CPC ...
F02B 1/310 ; F02M 2/506 ; F02M 2/507 ;
Abstract
A fuel injector and a spark plug are arranged inside a combustion chamber of an internal combustion chamber. Fuel is injected from the fuel injector at the end of the compression stroke. When the amount of EGR gas is increased, the amount of production of soot peaks. When the amount of EGR gas is further increased, soot is no longer produced. The amount of EGR gas in the combustion chamber is made larger than the amount of EGR gas where the amount of production of soot peaks. Due to this, the production of soot in the combustion chamber is suppressed.