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. 20, 2012
Filed:
Jun. 11, 2010
Stephan Krätschmer, Schwäbisch Gmünd, DE;
Wolfram Schmid, Nürtingen, DE;
Wolfgang Sladek, Ostfildern, DE;
Siegfried Sumser, Stuttgart, DE;
Stephan Krätschmer, Schwäbisch Gmünd, DE;
Wolfram Schmid, Nürtingen, DE;
Wolfgang Sladek, Ostfildern, DE;
Siegfried Sumser, Stuttgart, DE;
Daimler A G, Stuttgart, DE;
Abstract
In an internal combustion engine comprising an exhaust gas turbocharger, which includes a compressor with a compressor wheel arranged in an inlet tract of the internal combustion engine and a turbine with a turbine wheel coupled rotationally to the compressor wheel and arranged in an at least two-path exhaust gas tract of which is connected to an exhaust gas guide section of the turbine including at least a first spiral channel coupled to the first exhaust path and a second spiral channel coupled to a second exhaust gas path, two guide vane elements are arranged upstream of the turbine wheel and downstream of respective spiral channels which are formed corresponding to a first degree of asymmetry Adetermined as a quotient Θ of a first mass flow parameter and a second mass flow parameter which is between 0.4 and 0.8.