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. 24, 1995
Filed:
Mar. 09, 1993
Applicant:
Inventors:
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60284 ; 60289 ; 60290 ;
Abstract
An apparatus for introducing fresh air into an exhaust pipe of an internal combustion engine for purification of exhaust gas includes an air introducing means disposed between an intake pipe and an exhaust pipe of an internal combustion engine for introducing a fresh air into the exhaust pipe and hence to a catalytic converter, and a heater for heating the fresh air introduced through the air introducing means, wherein the heated air is fed to an catalytic converter via the exhaust pipe. Conversion of noxious components contained in the exhaust gas into harmless components is attained with the enhanced efficiency owing to heating of the fresh air by the heating means.