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:
Jan. 30, 1990
Filed:
Jul. 05, 1988
Applicant:
Inventors:
Franz Pischinger, Aachen, DE;
Gerhard Lepperhoff, Eschweiler, DE;
Assignee:
FEV Motorentechnik GmbH & Co. KG., Aachen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55283 ; 55466 ; 55523 ; 55DI / ; 60286 ; 60311 ;
Abstract
A system for the regeneration, by oxidation, of the particulates deposited in a particulate filter trap of an internal cumbustion engine provided for purifying the engine exhaust gas, in which the thickness of the particulates deposited in a given area in the trap is determined relative to a predetermined thickness in excess of which the filter trap will operate inefficiently, and the excess thickness being reduced by regeneration.