Patents by Inventor Tobias SCHOEFFLER

Tobias SCHOEFFLER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210003057
    Abstract: A method for operating a petrol engine, in which air is introduced into an exhaust tract through which exhaust gas from the petrol engine can flow, bypassing the petrol engine, includes introducing the air into the exhaust tract at a point arranged downstream of a first three-way catalytic converter arranged in the exhaust tract and upstream of a second three-way catalytic converter arranged in the exhaust tract downstream of the first three-way catalytic converter, while the petrol engine is operated with a sub-stoichiometric combustion air ratio, where a desulphurization of the second three-way catalytic converter is effected.
    Type: Application
    Filed: March 5, 2019
    Publication date: January 7, 2021
    Applicant: Daimler AG
    Inventors: Guenter HAY, Kai HOFFMANN, Tobias SCHOEFFLER, Michael STILLER
  • Publication number: 20160312745
    Abstract: A method for operating an internal combustion piston engine, preferably a spark ignition engine, is disclosed. For each combustion chamber at least one intake valve is closed prematurely or belatedly and an exhaust gas recirculation can be carried out. For each combustion chamber at least two intake valves are provided which are opened at least during the exhaust gas recirculation with different maximum strokes.
    Type: Application
    Filed: November 29, 2014
    Publication date: October 27, 2016
    Applicant: Daimler AG
    Inventors: Frank Michael BENZ, Thomas HAARMANN, Kai HOFFMANN, Kai KANNING, Thomas KOCH, Johannes RITZINGER, Tobias SCHOEFFLER