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 A1 determined as a quotient ? of a first mass flow parameter and a second mass flow parameter which is between 0.4 and 0.8.
Type:
Grant
Filed:
June 11, 2010
Date of Patent:
November 20, 2012
Assignee:
Daimler A G
Inventors:
Stephan Krätschmer, Wolfram Schmid, Wolfgang Sladek, Siegfried Sumser
Abstract: In a device for humidifying a gas flow, an atomized liquid is combined with a gas flow in a spray chamber, and passed through a generally U-shaped gas flow passage having a first generally vertical part 3 through which the atomized liquid and gas passes to a lower part 4. From there, the gas passes generally vertically upwardly to an outlet 9. The lower part of the passage incorporates an opening 6 to a water separator 7. The opening 6 is closable by a float device 10, or includes a flow restricting control valve 13.
Abstract: In an internal combustion engine valve drive switching device with a switching unit, the switching unit includes an implementation unit for implementing a first switching process based on at least one signal and thereafter, to implement a second switching process independently of an electronic evaluation.
Type:
Grant
Filed:
February 8, 2010
Date of Patent:
November 13, 2012
Assignee:
Daimler AG
Inventors:
Markus Lengfeld, Jens Meintschel, Thomas Stolk, Alexander von Gaisberg-Helfenberg