Patents by Inventor Krishna Kumar VEMPATI

Krishna Kumar VEMPATI 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: 11278850
    Abstract: A mixer is provided for mixing exhaust gas (A) flowing in an exhaust gas-carrying duct (14) of an internal combustion engine with reactant injected into the exhaust gas-carrying duct (14). The mixer includes a mixing body (22) with a reactant-receiving duct (34), an exhaust gas inlet opening device (54) with a plurality of exhaust gas inlet openings (56) leading to the reactant-receiving duct (34), and at least one releasing duct (40, 42) leading away from the reactant-receiving duct (34) with a releasing duct opening (48, 50) for releasing a reactant/exhaust gas mixture from the mixer body (22). An electrically energizable heater (68) is provided at the mixer body (22).
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: March 22, 2022
    Assignee: PUREM GMBH
    Inventors: Enver Kurpejovic, Fatih Uysal, Florian Friedrich, Oleksandr Semenov, Krishna Kumar Vempati
  • Patent number: 11208935
    Abstract: A mixer for an exhaust system of an internal combustion engine includes a first mixer part (12) with a plate shape body (14) having an incoming upstream flow side (18), with respect to an exhaust gas main flow direction (A) and a downstream outflow side (22), and a second mixer part (24), on an outflow side, with a bottom wall (26) spaced apart from the plate shape body and with two side walls (28, 30), extending from the bottom wall (26) towards the plate shape body and fixed at the first mixer part. The mixer parts define a reactant injection duct (32) receiving reactant in a main injection direction (R). An exhaust gas main passage opening (54) the plate shape body opens towards the reactant injection duct with a plurality of exhaust gas secondary passage openings (78, 80, 82, 84, 86, 88, 90, 92) run past the injection duct.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: December 28, 2021
    Assignee: Purem GmbH
    Inventors: Enver Kurpejovic, Florian Friedrich, Ruben Hass, Krishna Kumar Vempati, Sandra Hoeckel
  • Patent number: 11161080
    Abstract: A mixer for an exhaust system for mixing reactant injected into an exhaust gas stream with exhaust gas includes a mixer body (22). The mixer body includes a reactant passage body area (24) with a reactant passage opening (26), a mixer plate body area (30) adjoining the reactant passage body area (24) on one side in a mixer longitudinal direction (L) and a mixer main body area (36) adjoining the reactant passage body area (24) in the mixer longitudinal direction (L) on another side opposite the one side.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: November 2, 2021
    Assignee: Purem GmbH
    Inventors: Enver Kurpejovic, Krishna Kumar Vempati, Krishna Siva Prasad Reddy Yenugula, Ruben Hass
  • Publication number: 20200408131
    Abstract: A mixer for an exhaust system of an internal combustion engine includes a first mixer part (12) with a plate shape body (14) having an incoming upstream flow side (18), with respect to an exhaust gas main flow direction (A) and a downstream outflow side (22), and a second mixer part (24), on an outflow side, with a bottom wall (26) spaced apart from the plate shape body and with two side walls (28, 30), extending from the bottom wall (26) towards the plate shape body and fixed at the first mixer part. The mixer parts define a reactant injection duct (32) receiving reactant in a main injection direction (R). An exhaust gas main passage opening (54) the plate shape body opens towards the reactant injection duct with a plurality of exhaust gas secondary passage openings (78, 80, 82, 84, 86, 88, 90, 92) run past the injection duct.
    Type: Application
    Filed: June 26, 2020
    Publication date: December 31, 2020
    Inventors: Enver KURPEJOVIC, Florian FRIEDRICH, Ruben HASS, Krishna Kumar VEMPATI, Sandra HOECKEL
  • Patent number: 10815855
    Abstract: A mixer mixes exhaust gas (A) flowing in an exhaust gas-carrying duct of an internal combustion engine with reactant (R) injected into the exhaust gas-carrying duct. The mixer includes a mixer body (26) with a reactant-receiving duct (32) as well as a releasing device (36) with a releasing duct (34). The releasing device adjoins the reactant-receiving duct (32) in a transition area (42) and leads away from the reactant-receiving duct. The releasing device (36) has an asymmetric configuration in relation to a longitudinal axis (LR) of the reactant-receiving duct.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: October 27, 2020
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Enver Kurpejovic, Krishna Kumar Vempati, Vijaya Bhaskar Solipuram
  • Publication number: 20200047136
    Abstract: A mixer for an exhaust system for mixing reactant injected into an exhaust gas stream with exhaust gas includes a mixer body (22). The mixer body includes a reactant passage body area (24) with a reactant passage opening (26), a mixer plate body area (30) adjoining the reactant passage body area (24) on one side in a mixer longitudinal direction (L) and a mixer main body area (36) adjoining the reactant passage body area (24) in the mixer longitudinal direction (L) on another side opposite the one side.
    Type: Application
    Filed: August 12, 2019
    Publication date: February 13, 2020
    Inventors: Enver KURPEJOVIC, Krishna Kumar VEMPATI, Krishna Siva Prasad Reddy YENUGULA, Ruben HASS
  • Publication number: 20190388848
    Abstract: A mixer is provided for mixing exhaust gas (A) flowing in an exhaust gas-carrying duct (14) of an internal combustion engine with reactant injected into the exhaust gas-carrying duct (14). The mixer includes a mixing body (22) with a reactant-receiving duct (34), an exhaust gas inlet opening device (54) with a plurality of exhaust gas inlet openings (56) leading to the reactant-receiving duct (34), and at least one releasing duct (40, 42) leading away from the reactant-receiving duct (34) with a releasing duct opening (48, 50) for releasing a reactant/exhaust gas mixture from the mixer body (22). An electrically energizable heater (68) is provided at the mixer body (22).
    Type: Application
    Filed: June 18, 2019
    Publication date: December 26, 2019
    Inventors: Enver KURPEJOVIC, Fatih UYSAL, Florian FRIEDRICH, Oleksandr SEMENOV, Krishna Kumar VEMPATI
  • Patent number: 10458301
    Abstract: A reactant release arrangement for an exhaust gas stream of an internal combustion engine has an exhaust gas guide element (12) with an exhaust gas flow duct (13). A reactant release body (14) extends into the exhaust gas flow duct (13) and has a reactant-receiving volume (20) with a wall inner surface (32) and a wall outer surface (18) of a body wall (16) that is open to the exhaust gas flow duct (13) via at least one passage opening (44, 46). Exhaust gas (G) flowing in the exhaust gas flow duct (13) flows around the reactant release body (14) at a wall outer surface (18) of the body wall (16). A reactant release unit (22) releases reagent (M) into the reactant-receiving volume (20). A heating device (38) is associated with an area of the inner surface (32) of the body wall (16) and heats the reactant release body (14).
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: October 29, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Krishna Kumar Vempati, Enver Kurpejovic
  • Publication number: 20190226379
    Abstract: A mixer mixes exhaust gas (A) flowing in an exhaust gas-carrying duct of an internal combustion engine with reactant (R) injected into the exhaust gas-carrying duct. The mixer includes a mixer body (26) with a reactant-receiving duct (32) as well as a releasing device (36) with a releasing duct (34). The releasing device adjoins the reactant-receiving duct (32) in a transition area (42) and leads away from the reactant-receiving duct. The releasing device (36) has an asymmetric configuration in relation to a longitudinal axis (LR) of the reactant-receiving duct.
    Type: Application
    Filed: January 17, 2019
    Publication date: July 25, 2019
    Inventors: Enver KURPEJOVIC, Krishna Kumar VEMPATI, Vijaya Bhaskar SOLIPURAM
  • Patent number: 10215076
    Abstract: A mixer mixes exhaust gas (A) flowing in an exhaust gas-carrying duct of an internal combustion engine with reactant (R) injected into the exhaust gas-carrying duct. The mixer includes a mixer body (32) with a reactant receiving duct (48), an exhaust gas inlet opening arrangement (70) with a plurality of exhaust gas inlet openings (72, 74, 76, 78, 80) leading to the reactant receiving duct, and at least one release duct (62, 66) leading away from the reactant receiving duct (48) with a release duct opening (64, 66) for the release of a reactant/exhaust gas mixture from the mixer body (32).
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: February 26, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Vijaya Bhaskar Solipuram, Krishna Kumar Vempati, Enver Kurpejovic
  • Patent number: 10190463
    Abstract: An exhaust system, especially for an internal combustion engine of a vehicle, includes an exhaust gas-carrying duct (14) and a reactant injection device (20) for injecting reactant (R) into exhaust gas (A) flowing in the exhaust gas-carrying duct (14). Downstream of the reactant injection device (20), a mixer device (22) supports the mixing of reactant (R) injected by the reactant injection device (20) with exhaust gas (A) flowing in the exhaust gas-carrying duct (14). Downstream of the reactant injection device (20) and upstream of the mixer device (22), a reactant heating device (24) extends in the exhaust gas-carrying duct (14). The exhaust gas (A) flows in and reactant (R) injected through the reactant injection device (20) flow around the heating device (24).
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: January 29, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Enver Kurpejovic, Bernd Westerhoff, David Binder, Anika Bürkle, Gita Feyl-Narrain, Steffen Glaser, Ruben Hass, Oleksandr Semenov, Krishna Kumar Vempati
  • Publication number: 20180135487
    Abstract: A reactant release arrangement for an exhaust gas stream of an internal combustion engine has an exhaust gas guide element (12) with an exhaust gas flow duct (13). A reactant release body (14) extends into the exhaust gas flow duct (13) and has a reactant-receiving volume (20) with a wall inner surface (32) and a wall outer surface (18) of a body wall (16) that is open to the exhaust gas flow duct (13) via at least one passage opening (44, 46). Exhaust gas (G) flowing in the exhaust gas flow duct (13) flows around the reactant release body (14) at a wall outer surface (18) of the body wall (16). A reactant release unit (22) releases reagent (M) into the reactant-receiving volume (20). A heating device (38) is associated with an area of the inner surface (32) of the body wall (16) and heats the reactant release body (14).
    Type: Application
    Filed: November 9, 2017
    Publication date: May 17, 2018
    Inventors: Krishna Kumar VEMPATI, Enver KURPEJOVIC
  • Publication number: 20170260888
    Abstract: A mixer mixes exhaust gas (A) flowing in an exhaust gas-carrying duct of an internal combustion engine with reactant (R) injected into the exhaust gas-carrying duct. The mixer includes a mixer body (32) with a reactant receiving duct (48), an exhaust gas inlet opening arrangement (70) with a plurality of exhaust gas inlet openings (72, 74, 76, 78, 80) leading to the reactant receiving duct, and at least one release duct (62, 66) leading away from the reactant receiving duct (48) with a release duct opening (64, 66) for the release of a reactant/exhaust gas mixture from the mixer body (32).
    Type: Application
    Filed: March 9, 2017
    Publication date: September 14, 2017
    Inventors: Vijaya Bhaskar SOLIPURAM, Krishna Kumar VEMPATI, Enver KURPEJOVIC
  • Publication number: 20170254244
    Abstract: An exhaust system, especially for an internal combustion engine of a vehicle, includes an exhaust gas-carrying duct (14) and a reactant injection device (20) for injecting reactant (R) into exhaust gas (A) flowing in the exhaust gas-carrying duct (14). Downstream of the reactant injection device (20), a mixer device (22) supports the mixing of reactant (R) injected by the reactant injection device (20) with exhaust gas (A) flowing in the exhaust gas-carrying duct (14). Downstream of the reactant injection device (20) and upstream of the mixer device (22), a reactant heating device (24) extends in the exhaust gas-carrying duct (14). The exhaust gas (A) flows in and reactant (R) injected through the reactant injection device (20) flow around the heating device (24).
    Type: Application
    Filed: March 2, 2017
    Publication date: September 7, 2017
    Inventors: Enver KURPEJOVIC, Bernd WESTERHOFF, David BINDER, Anika BÜRKLE, Gita FEYL-NARRAIN, Steffen GLASER, Ruben HASS, Oleksandr SEMENOV, Krishna Kumar VEMPATI