Patents by Inventor Johannes BLECKMANN

Johannes BLECKMANN 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).

  • Patent number: 11781466
    Abstract: An exhaust system of an internal combustion engine of a motor vehicle includes a particulate filter where particles are filterable out from the exhaust gas by the particulate filter. A selective catalytic reduction (SCR) catalytic converter through which the exhaust gas from the internal combustion engine is flowable for denitrifying the exhaust gas from the internal combustion engine is disposed downstream of the particulate filter. The exhaust gas of the internal combustion engine is heatable by a combustor at a point disposed upstream of the SCR catalytic converter and downstream of the particulate filter where the combustor provides an exhaust gas of the combustor. Particles are filterable out from the exhaust gas of the combustor by a filter element.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: October 10, 2023
    Assignee: Daimler Truck AG
    Inventors: Johannes Bleckmann, Alexander Massner, Michael Stiller
  • Publication number: 20220381174
    Abstract: An exhaust system of an internal combustion engine of a motor vehicle includes a particulate filter where particles are filterable out from the exhaust gas by the particulate filter. A selective catalytic reduction (SCR) catalytic converter through which the exhaust gas from the internal combustion engine is flowable for denitrifying the exhaust gas from the internal combustion engine is disposed downstream of the particulate filter. The exhaust gas of the internal combustion engine is heatable by a combustor at a point disposed upstream of the SCR catalytic converter and downstream of the particulate filter where the combustor provides an exhaust gas of the combustor. Particles are filterable out from the exhaust gas of the combustor by a filter element.
    Type: Application
    Filed: August 13, 2020
    Publication date: December 1, 2022
    Inventors: Johannes BLECKMANN, Alexander MASSNER, Michael STILLER
  • Patent number: 11008916
    Abstract: In an exhaust system for a motor vehicle having an exhaust treatment device for after-treating exhaust gas of a combustion engine of the motor vehicle, the exhaust gas treatment device includes a first SCR catalyst, which has a zeolite material containing copper, an ammonia slip catalyst, which is arranged downstream of the first SCR catalyst, and a particulate filter. A second SCR catalyst, which has an SCR catalyst material containing vanadium, is arranged upstream of the first SCR catalyst.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: May 18, 2021
    Assignee: Daimler AG
    Inventors: Johannes Bleckmann, Claudia Essmann, Uwe Gaertner, Alexander Massner, Michael Stiller
  • Publication number: 20200116063
    Abstract: In an exhaust system for a motor vehicle having an exhaust treatment device for after-treating exhaust gas of a combustion engine of the motor vehicle, the exhaust gas treatment device includes a first SCR catalyst, which has a zeolite material containing copper, an ammonia slip catalyst, which is arranged downstream of the first SCR catalyst, and a particulate filter. A second SCR catalyst, which has an SCR catalyst material containing vanadium, is arranged upstream of the first SCR catalyst.
    Type: Application
    Filed: June 12, 2018
    Publication date: April 16, 2020
    Inventors: Johannes BLECKMANN, Claudia ESSMANN, Uwe GAERTNER, Alexander MASSNER, Michael STILLER
  • Patent number: 10502107
    Abstract: An exhaust gas after-treatment unit for an internal combustion engine, particularly for a motor vehicle, includes a first selective catalytic reduction (SCR) catalytic converter through which the exhaust gas from the internal combustion engine can flow and at least one particle filter for retaining the soot particles from the exhaust gas. The particle filter, which is located downstream from the first SCR catalytic converter, is equipped with a heavy metal and precious metal free catalyzing coating which oxidizes the soot particles retained by the particle filter, where downstream from the particle filter there is a second SCR catalytic converter through which the exhaust gas can flow.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: December 10, 2019
    Assignee: Daimler AG
    Inventors: Johannes Bleckmann, Claudia Essmann, Uwe Gaertner, Alexander Massner, Michael Stiller
  • Patent number: 10287939
    Abstract: An exhaust gas after-treatment unit includes a first catalytic converter, a particle filter arranged downstream of the first catalytic converter, and a second catalytic converter arranged downstream of the particle filter and which is a selective catalytic reduction (SCR) catalytic converter. The first catalytic converter is a combination catalytic converter including a first catalytic converter part which is an SCR catalytic converter, a second catalytic converter part arranged downstream of the first catalytic converter part which is an ammonia slip catalytic converter and has a noble metal layer with a first noble metal content, a third catalytic converter part arranged downstream of the second catalytic converter part which is an oxidation catalytic converter and has a noble metal layer with a second noble metal content, and an SCR layer arranged on the noble metal layers and extending over the entire length of the second and third catalytic converter parts.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: May 14, 2019
    Assignee: Daimler AG
    Inventors: Johannes Bleckmann, Claudia Essmann, Uwe Gaertner, Alexander Massner, Michael Stiller
  • Publication number: 20190003360
    Abstract: An exhaust gas after treatment unit includes a first catalytic converter, a particle filter arranged downstream of the first catalytic converter, and a second catalytic converter arranged downstream of the particle filter and which is a selective catalytic reduction (SCR) catalytic converter. The first catalytic converter is a combination catalytic converter including a first catalytic converter part which is an SCR catalytic converter, a second catalytic converter part arranged downstream of the first catalytic converter part which is an ammonia slip catalytic converter and has a noble metal layer with a first noble metal content, a third catalytic converter part arranged downstream of the second catalytic converter part which is an oxidation catalytic converter and has a noble metal layer with a second noble metal content, and an SCR layer arranged on the noble metal layers and extending over the entire length of the second and third catalytic converter parts.
    Type: Application
    Filed: December 12, 2016
    Publication date: January 3, 2019
    Applicant: Daimler AG
    Inventors: Johannes BLECKMANN, Claudia ESSMANN, Uwe GAERTNER, Alexander MASSNER, Michael STILLER
  • Publication number: 20180347423
    Abstract: An exhaust gas after-treatment unit for an internal combustion engine, particularly for a motor vehicle, includes a first selective catalytic reduction (SCR) catalytic converter through which the exhaust gas from the internal combustion engine can flow and at least one particle filter for retaining the soot particles from the exhaust gas, The particle filter, which is located downstream from the first SCR catalytic converter, is equipped with a heavy metal and precious metal free catalyzing coating which oxidizes the soot particles retained by the particle filter, where downstream from the particle filter there is a second SCR catalytic converter through which the exhaust gas can flow.
    Type: Application
    Filed: November 14, 2016
    Publication date: December 6, 2018
    Applicant: Daimler AG
    Inventors: Johannes BLECKMANN, Claudia ESSMANN, Uwe GAERTNER, Alexander MASSNER, Michael STILLER