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:
Nov. 02, 2004
Filed:
May. 16, 2002
Nikolaus Benninger, Vaihingen, DE;
Horst Harndorf, Schwieberdingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method and an apparatus for the post-treatment of exhaust gas produced by an internal combustion engine ( ), in particular in a motor vehicle, wherein the following are provided: a hydrolysis unit ( ) and a metering device ( ) connected to it via a hydrogen line ( ) for the metered addition of hydrogen to the untreated exhaust gas (A) and/or to the exhaust gas treated by means of an oxidation catalytic converter ( ), and a control/regulating unit ( ) that is functionally connected to the hydrolysis unit ( ) and the metering device ( ) in order to control or regulate the production of hydrogen in the hydrolysis unit ( ) and the metering device ( ) as a function of certain operating states of the internal combustion engine ( ) and registered parameters of the exhaust-gas system (FIG. ).