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. 05, 2006
Filed:
Jan. 19, 2005
Markus Amman, Weinstadt, DE;
Nikolas Fekete, Stuttgart, DE;
Dirk Herbstritt, Durmersheim, DE;
Aleksandar Knezevic, Friedrichshafen, DE;
Ralf Müller, Deggenhausertal, DE;
Carsten Plog, Markdorf, DE;
Markus Amman, Weinstadt, DE;
Nikolas Fekete, Stuttgart, DE;
Dirk Herbstritt, Durmersheim, DE;
Aleksandar Knezevic, Friedrichshafen, DE;
Ralf Müller, Deggenhausertal, DE;
Carsten Plog, Markdorf, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
In a device for determining an exhaust gas recirculation rate (EGR) in an internal combustion engine, wherein the device includes a sensor unit, which in a first region is exposed to an exhaust-gas atmosphere from an exhaust gas recirculation line and in a second region is exposed to an exhaust gas/fresh air atmosphere in an intake line of the internal combustion engine downstream of a location where the exhaust gas recirculation line opens into the intake line, the sensor unit disposed in the intake line is tubular with the inner side of the sensor unit being exposed to the exhaust gas atmosphere and the outer side of the sensor unit being exposed to the exhaust gas/fresh air atmosphere. The sensor unit is preferably positioned centrally within the intake line away from the wall of the intake line.