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:
Apr. 23, 2019
Filed:
Sep. 03, 2014
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
NISSAN MOTOR CO., LTD., Yokohama-shi, Kanagawa, JP;
Abstract
In inline four cylinder internal combustion engine (), exhaust ports for a #cylinder and a #cylinder merge inside cylinder head () and form an opening serving as a single collective exhaust port. Exhaust manifold () has individual exhaust pipes () for #and #cylinders and collective exhaust pipe (), and the leading ends of these three exhaust pipes () are connected to catalytic converter (). Exhaust gas introduction angle (θ) of each of individual exhaust pipes () is larger by 30-60 degrees than exhaust gas introduction angle (θ) of collective exhaust pipe (). Consequently, flow velocity distribution and temperature distribution in a catalyst carrier become uniform.