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:
Sep. 03, 1991
Filed:
Oct. 13, 1989
Applicant:
Inventor:
Dietmar Henkel, Neumarkt, DE;
Assignee:
MAN Nutzfahrzeuge Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60274 ; 55466 ; 55DI / ; 60275 ; 60303 ; 60311 ;
Abstract
A method and apparatus for removing carbon that has been collected in an exhaust gas filter of an internal combustion engine utilizing electrical energy that is introduced via an appropriate electrode arrangement. In order to obtain a more homogeneous current flow and hence a greater (more rapid) burning of carbon without great expenditure, the thermal heating-up of the carbon is effected in exhaust gas conveying chambers and in the filter with the aid of an electrostatic alternating field that is induced between the electrodes and produces radially directed, axially equalized discharge currents, so-called shift currents.