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. 03, 2013
Filed:
Nov. 27, 2010
Siegfried Sumser, Stuttgart, DE;
Stephan Krätschmer, Schwäbisch Gmünd, DE;
Markus Müller, Waiblingen, DE;
Siegfried Sumser, Stuttgart, DE;
Stephan Krätschmer, Schwäbisch Gmünd, DE;
Markus Müller, Waiblingen, DE;
Daimler AG, Stuttgart, DE;
Abstract
In an exhaust gas turbocharger for an internal combustion engine of a motor vehicle with a turbine comprising a turbine housing with at least a first and a second spiral channel, each being coupled to an exhaust gas line of an exhaust gas tract of the internal combustion engine for conducting exhaust gas to a turbine wheel arranged within the turbine housing and driving a compressor wheel of a compressor of the exhaust gas turbocharger, an area ratio Qof the turbine corresponds to the formula Q=(A+A)/A>0.40, wherein Arefers to a narrowest flow cross-section of the first spiral channel, Ato a narrowest flow cross-section of the second spiral channel () and Ato a wheel exit flow cross-section of the turbine exhaust channel. The invention further relates to a motor vehicle with an internal combustion engine and such an exhaust gas turbocharger.