Patents by Inventor Roland HEIGL

Roland HEIGL 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).

  • Method and device for purifying exhaust gas
    Patent number: 11156139
    Abstract: A method for purifying the exhaust gas generated by an internal combustion engine, wherein the exhaust gas generated by the internal combustion engine is conducted through an exhaust gas path in which at least one adsorption element is arranged, to which pollutants contained in the exhaust gas at least partly bind, and in which the at least one adsorption element is regenerated by at least partial desorption of the bound pollutants, and pollutants desorbed from the at least one adsorption element during the desorption process are stored in at least one storage unit.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: October 26, 2021
    Assignee: AUDI AG
    Inventors: Simone Müller-Hellwig, Roland Heigl, Alexander Krajete, Arne Seifert, Hagen Seifert
  • Utilization of pollutants from internal combustion engines
    Patent number: 10919769
    Abstract: Nitrogen oxides formed in combustion engines are recycled such that the nitrogen oxides can be utilized for producing liquid or solid chemicals. The nitrogen oxides are recycled by a method including an adsorber material adsorbing nitrogen oxides from an exhaust-gas stream of the combustion engine, removing the adsorber material laden with nitrogen oxides, desorbing the adsorbed nitrogen oxides from the adsorber material, and converting the nitrogen oxides desorbed from the adsorber material into liquid or solid nitrogen-containing compounds.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: February 16, 2021
    Assignee: AUDI AG
    Inventors: Simone Müller-Hellwig, Hagen Seifert, Roland Heigl, Alexander Krajete, Arne Seifert
  • UTILIZATION OF POLLUTANTS FROM INTERNAL COMBUSTION ENGINES
    Publication number: 20200198970
    Abstract: Nitrogen oxides formed in combustion engines are recycled such that the nitrogen oxides can be utilized for producing liquid or solid chemicals. The nitrogen oxides are recycled by a method including an adsorber material adsorbing nitrogen oxides from an exhaust-gas stream of the combustion engine, removing the adsorber material laden with nitrogen oxides, desorbing the adsorbed nitrogen oxides from the adsorber material, and converting the nitrogen oxides desorbed from the adsorber material into liquid or solid nitrogen-containing compounds.
    Type: Application
    Filed: December 3, 2018
    Publication date: June 25, 2020
    Applicant: AUDI AG
    Inventors: Simone MÜLLER-HELLWIG, Hagen SEIFERT, Roland HEIGL, Alexander KRAJETE, Arne SEIFERT
  • DEVICE FOR CLEANING AIR LADEN WITH CO2
    Publication number: 20200009496
    Abstract: A device for cleaning air laden with CO2 present in an enclosed space, including at least one adsorption device for adsorbing CO2 from the air supplied to the adsorption device, a desorption device associated with the adsorption device for desorbing adsorbed CO2, and a removal device for removing the desorbed CO2.
    Type: Application
    Filed: December 11, 2017
    Publication date: January 9, 2020
    Applicant: AUDI AG
    Inventors: Simone MÜLLER-HELLWIG, Roland HEIGL, Hagen SEIFERT, Alexander KRAJETE, Arne SEIFERT
  • Device for cleaning air laden with CO2
    Patent number: 10507424
    Abstract: A device for cleaning air laden with CO2 present in an enclosed space, including at least one adsorption device for adsorbing CO2 from the air supplied to the adsorption device, a desorption device associated with the adsorption device for desorbing adsorbed CO2, and a removal device for removing the desorbed CO2.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: December 17, 2019
    Assignee: AUDI AG
    Inventors: Simone Müller-Hellwig, Roland Heigl, Hagen Seifert, Alexander Krajete, Arne Seifert
  • METHOD AND DEVICE FOR PURIFYING EXHAUST GAS
    Publication number: 20190292960
    Abstract: A method for purifying the exhaust gas generated by an internal combustion engine, wherein the exhaust gas generated by the internal combustion engine is conducted through an exhaust gas path in which at least one adsorption element is arranged, to which pollutants contained in the exhaust gas at least partly bind, and in which the at least one adsorption element is regenerated by at least partial desorption of the bound pollutants, and pollutants desorbed from the at least one adsorption element during the desorption process are stored in at least one storage unit.
    Type: Application
    Filed: September 13, 2017
    Publication date: September 26, 2019
    Applicant: AUDI AG
    Inventors: Simone MÜLLER-HELLWIG, Roland HEIGL, Alexander KRAJETE, Arne SEIFERT