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:
Apr. 12, 2011
Filed:
Aug. 16, 2007
Kerstin Silbermann, Königslutter, DE;
Wilfried Rhode, Meine, DE;
Janet Schlothauer, Kunrau, DE;
Arnd Schmidt, Gifhorn, DE;
Kerstin Silbermann, Königslutter, DE;
Wilfried Rhode, Meine, DE;
Janet Schlothauer, Kunrau, DE;
Arnd Schmidt, Gifhorn, DE;
Volkswagen Aktiengesellschaft, Wolfsburg, DE;
Abstract
An internal combustion engine includes an exhaust-gas tract and a supply system for combustion air. A compressor of an exhaust-gas turbocharger is disposed in the supply system for combustion air. A turbine of the exhaust-gas turbocharger, a first particulate filter, and an adjustable exhaust-gas throttle are disposed in series in a downstream direction in the exhaust-gas tract. A low-pressure exhaust-gas recirculation line branches off from the exhaust-gas tract downstream of the first particulate filter and discharges into the supply system for combustion air upstream of the compressor. An exhaust-gas recirculation cooler, an exhaust-gas recirculation valve, and a second particulate filter with a filter mesh size of at least 50 μm are disposed in the low-pressure exhaust-gas recirculation line.