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:
Mar. 21, 1978
Filed:
May. 27, 1976
Applicant:
Inventors:
Tooru Yoshimura, Yokosuka, JA;
Fumio Sanezawa, Yokosuka, JA;
Assignee:
Nissan Motor Company, Ltd., , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ; F01N / ;
U.S. Cl.
CPC ...
60278 ; 60282 ; 60323 ; 1231 / ;
Abstract
An internal combustion engine is disclosed in which each pair of cylinders has a Siamese exhaust port. Each of the exhaust ports is designed so that the ratio of a surface area (F) exposed to the exhaust gas discharged from one of the cylinders to the minimum cross-sectional area (S) through which the exhaust gas flows (F/S) ranges from 3 to 6.