Patents Assigned to Daimler
  • Method of chemical treatment of fuel cell plate surface to modify wettability of flow field channels
    Patent number: 8530100
    Abstract: A method of surface treating a separator plate of a fuel cell comprises reacting the separator plate with an aqueous solution of hydrogen peroxide. The aqueous solution of hydrogen peroxide comprises one or more salts of one or more transition metals. The one or more transition metals have variable oxidation states. This method makes the surface of the separator plate hydrophilic (˜35 deg contact angle of water) and improves its electrical conductivity. The method of surface treating a separator plate (e.g., a graphite and/or graphite composite plate) of a fuel cell can further comprise a method of modifying wettability of the separator plate comprising treating the separator plate with a solution comprising one or more silanes. In another embodiment, a method of modifying wettability of a separator plate (e.g.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: September 10, 2013
    Assignees: Daimler AG, Ford Motor Company
    Inventors: Dmitri Vdovine, Natalia Kremliakova, Andrei Bogdanov
  • Cast steel piston for internal combustion engines
    Patent number: 8528513
    Abstract: The invention relates to a steel piston for internal combustion engines, comprising at least one piston upper part (12) provided with a combustion cavity (11) and an annular wall (5), and a piston lower part (13) provided with a connecting rod bearing (8). The steel piston is cast as a single component from a reduced-density steel alloy or a special steel alloy in the same material by means of a low-pressure casting method.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: September 10, 2013
    Assignee: Daimler AG
    Inventors: Tilmann Haug, Wolfgang Rehm, Karl Weisskopf
  • Sliding Sleeve Blank and Motor Vehicle Steering Spindle Assembly Having a Sliding Sleeve Made from the Blank
    Publication number: 20130228034
    Abstract: A sliding sleeve blank for producing a sliding sleeve for a steering spindle shaft of a motor vehicle steering spindle and the motor vehicle steering spindle assembly are provided. The sliding sleeve blank has a cylindrical form and has a section on one end, which has a collar, from which winged webs extending away radially extend in the direction of the second end. The sliding sleeve blank is a cold impact extrusion component, which, at the section has a preliminary toothing system extending over one part of the length of the section.
    Type: Application
    Filed: October 13, 2011
    Publication date: September 5, 2013
    Applicant: Daimler AG
    Inventors: Axel Hebenstreit, Marco Schwieger
  • Method and Device for Displaying Values in a Vehicle
    Publication number: 20130229417
    Abstract: A method for displaying a value on a display device of a vehicle in which a circular dial with a predetermined range of values in a first angle range of a full or partial circle and an indicator pointing to the value of the circular dial to be indicated are graphically depicted. The scaling of the circular dial is altered and the circular dial is then displayed in a second angle range smaller than the first angle range, in keeping with the changed scaling. This provides additional space for displaying other information.
    Type: Application
    Filed: October 7, 2011
    Publication date: September 5, 2013
    Applicant: DAIMLER AG
    Inventors: Peter Brenner, Vera Schmidt
  • Radial compressor, particularly for an exhaust gas turbocharger of an internal combustion engine
    Patent number: 8522549
    Abstract: In a radial compressor, particularly of an exhaust gas turbocharger of an internal combustion engine, having a compressor housing within which a compressor wheel is disposed for compressing air from an inflow channel of the compressor housing and directing the air to an outflow channel of the compressor housing, the compressor housing comprising a bypass channel having a first flow opening upstream of an axial compressor wheel inlet and a second flow opening downstream of the compressor wheel inlet, the compressor housing is configured at least in a flow region upstream of the second flow opening in an asymmetric manner with regard to a rotational axis of the compressor wheel.
    Type: Grant
    Filed: November 27, 2010
    Date of Patent: September 3, 2013
    Assignee: Daimler AG
    Inventors: Siegfried Sumser, Stephan Krätschmer, Michael Stiller
  • Exhaust gas turbocharger for an internal combustion engine of a motor vehicle
    Patent number: 8522547
    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 Qg of the turbine corresponds to the formula Qg=(A?+AAGR)/AR>0.40, wherein A? refers to a narrowest flow cross-section of the first spiral channel, AAGR to a narrowest flow cross-section of the second spiral channel (52b) and AR to 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.
    Type: Grant
    Filed: November 27, 2010
    Date of Patent: September 3, 2013
    Assignee: Daimler AG
    Inventors: Siegfried Sumser, Stephan Krätschmer, Markus Müller
  • Method for Operating an Internal Combustion Engine
    Publication number: 20130219864
    Abstract: In a method for operating an air-compressing fuel-injection internal combustion engine having an exhaust gas post-treatment system with a particle filter and a nitrogen oxide reduction catalytic converter, a plurality of internal combustion engine operating settings are provided, each having respective predefined values for predefined internal combustion engine operating parameters. A heating operating setting is set when the internal combustion engine is warming up, while a basic operating setting is set in the warmed-up state. When the temperature in the exhaust gas system exceeds a predefinable first value, the heating operating setting is changed over to the basic operating setting. In the warmed-up state, at least one further (third) operating setting, with an exhaust gas recirculation rate that is reduced compared to the basic operating setting, is provided in addition to the basic operating setting.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 29, 2013
    Applicant: Daimler AG
    Inventor: Daimler AG
  • EXHAUST GAS RECIRCULATION ARRANGEMENT WITH CONDENSATE DISCHARGE
    Publication number: 20130219886
    Abstract: In an exhaust gas recirculation arrangement in which condensate is discharged from an exhaust gas recirculation path of an internal combustion engine, in particular of a motor vehicle, wherein, due to a pressure difference between a condensate collection region arranged in the EGR path and a condensate discharge region, collected condensate is discharged at least partially from the condensate collection region into the condensate discharge region, when the pressure level prevalent in the condensate collection region is greater than in the condensate discharge region in a secure manner and with low environmental impact.
    Type: Application
    Filed: March 17, 2013
    Publication date: August 29, 2013
    Applicant: DAIMLER AG
    Inventor: DAIMLER AG
  • Coolant Circuit for a Fuel Cell System and Method for Changing out Ion Exchanger Material
    Publication number: 20130224617
    Abstract: A coolant circuit for a fuel cell system of a motor vehicle includes an ion exchanger material arranged in at least one component of the coolant circuit that is flowed through by coolant during the cooling operation. The ion exchanger material is fixed to an internal side of a wall of the at least one component. During an exchange of the ion exchanger material, the entire component is exchanged and replaced by a replacement component.
    Type: Application
    Filed: November 4, 2011
    Publication date: August 29, 2013
    Applicant: Daimler AG
    Inventors: Tom Haastert, Mario Mittmann
  • Coolant Circuit for a Fuel Cell System, and Method for Fluidically Coupling an Ion Exchange Module to a Component of a Coolant Circuit
    Publication number: 20130224619
    Abstract: A coolant circuit for a fuel cell system of a motor vehicle includes an ion exchange module fluidically coupled to a component of the coolant circuit, which is flowed through by coolant during a cooling operation. The ion exchange module is fixed to an external wall of the component. A fastening element couples the ion exchange module fluidically to the component.
    Type: Application
    Filed: November 4, 2011
    Publication date: August 29, 2013
    Applicant: Daimler AG
    Inventors: Wolfgang Schwienbacher, Mario Mittmann
  • Radiator grill for a vehicle
    Patent number: D688604
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: August 27, 2013
    Assignee: Daimler AG
    Inventors: Mark Fetherston, Klaus Frenzel, Hans-Dieter Futschik, Gorden Wagener
  • Steering wheel
    Patent number: D688606
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: August 27, 2013
    Assignee: Daimler AG
    Inventors: Peter Balko, Hartmut Sinkwitz, Gorden Wagener, Hans-Peter Wunderlich
  • Rear bumper for a vehicle
    Patent number: D688605
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: August 27, 2013
    Assignee: Daimler AG
    Inventors: Hans-Dieter Futschik, Robert Lesnik, Volker Leutz, Gorden Wagener
  • Taillight for a vehicle
    Patent number: D688823
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: August 27, 2013
    Assignee: Daimler AG
    Inventors: Thomas Binder, Hans-Dieter Futschik, Stefan Handt, Frank Pfisterer, Gorden Wagener
  • Headlight for a vehicle
    Patent number: D688824
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: August 27, 2013
    Assignee: Daimler AG
    Inventors: Thomas Binder, Hans-Dieter Futschik, Stefan Handt, Frank Pfisterer, Gorden Wagener
  • Headlight for a vehicle
    Patent number: D688825
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: August 27, 2013
    Assignee: Daimler AG
    Inventors: Thomas Binder, Hans-Dieter Futschik, Stefan Handt, Frank Pfisterer, Gorden Wagener
  • Front portion of a vehicle, toy, and/or replicas thereof
    Patent number: D689415
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: September 10, 2013
    Assignee: Daimler AG
    Inventors: Michael Frei, Hans-Dieter Futschik, Robert Lesnik, Gorden Wagener
  • Front portion of a vehicle, toy, and/or replicas thereof
    Patent number: D689416
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: September 10, 2013
    Assignee: Daimler AG
    Inventors: Michael Frei, Hans-Dieter Futschik, Robert Lesnik, Gorden Wagener
  • Wheel or wheel cover
    Patent number: D689421
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: September 10, 2013
    Assignee: Daimler AG
    Inventor: Markus Wachter
  • Storage rack for headphones
    Patent number: D689427
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: September 10, 2013
    Assignee: Daimler AG
    Inventor: Andre Frey