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:
Feb. 06, 2003
Mitsuo Hitomi, Aki-gun, JP;
Kouji Asanomi, Aki-gun, JP;
Yoshiyuki Shinya, Aki-gun, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
In a pair of preceding and following cylinders whose exhaust and intake strokes overlap each other, intake air supplied to the preceding cylinder (A,D) is supercharged by a turbocharger () to produce combustion at a 'lean' air-fuel ratio in the preceding cylinder (A,D), and burned gas discharged from the preceding cylinder (A,D) is introduced into the following cylinder (B,C) through an intercylinder gas channel (). Combustion in the following cylinder (B,C) is made at an air-fuel ratio equal to or smaller than the stoichiometric air-fuel ratio by supplying fuel to the burned gas of a 'lean' air-fuel ratio introduced from the preceding cylinder (A,D), and gas discharged from the following cylinder (B,C) is led to an exhaust passage () provided with a three-way catalyst ().