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:
Dec. 04, 2018
Filed:
Nov. 04, 2016
Robert Bosch Gmbh, Stuttgart, DE;
Alexander Franz, Gaertringen, DE;
Andreas Fritsch, Waiblingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
In a method for operating an SCR catalytic converter system of an internal combustion engine, the SCR catalytic converter system comprises at least one SCR catalytic converter () and at least one upstream SCR-coated particulate filter (). In order to inject liquid reducing agent for the SCR catalytic converter () and/or for the SCR-coated particulate filter (), a first injection position is provided upstream of the SCR-coated particulate filter () in the form of a first metering device () and a second injection position is provided upstream of the SCR catalytic converter () and downstream of the SCR-coated particulate filter () in the form of a second metering device (). The injection positions for the injection of liquid reducing agent are selected in a manner which is dependent on the operating states of the SCR catalytic converter system.