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. 17, 1979
Filed:
Sep. 07, 1976
Applicant:
Inventors:
Iwao Nakamura, Yokohama, JP;
Hiroyasu Kan, Yokohama, JP;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
60293 ; 60305 ; 60312 ;
Abstract
An exhaust line including an exhaust pipe assembly, a reactor for oxidizing hydrocarbons and carbon monoxide, a main muffler and a mechanism for drawing secondary air from the atmosphere into the exhaust line upstream of the reactor based on the pulsation of the exhaust pressure, wherein a front tube of the exhaust pipe assembly for passing the exhaust gas from the engine to the reactor has a smaller cross-sectional area than a center tube connecting the reactor to the main muffler, so that the pulsation is of a great magnitude even at an engine speed where the pulsation is in an anti-resonance state.