Patents by Inventor Hans H. Drangel

Hans H. Drangel 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: 9353670
    Abstract: An exhaust gas recirculation system for an internal combustion engine comprising an exhaust gas recirculation conduit fluidly connecting an exhaust manifold to an intake manifold of the internal combustion engine, first and second exhaust gas coolers located in series in the exhaust gas recirculation conduit, each of the first and second exhaust gas coolers comprising an inlet and an outlet fluidly connected to a first and a second coolant circuit respectively, wherein the second coolant circuit comprises a radiator having a coolant inlet in fluid communication with the coolant outlet of the second exhaust gas cooler, a pump having a coolant inlet in fluid communication with a coolant outlet of the radiator and a coolant outlet in fluid communication with the coolant inlet of the second exhaust gas cooler, and an additional conduit fluidly connecting the coolant outlet of the exhaust cooler.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: May 31, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Alberto Vassallo, Hans H. Drangel
  • Patent number: 8997487
    Abstract: A turbocharger for an internal combustion engine, comprising a bearing housing, a rotating shaft coupled to the bearing housing, a compressor wheel mounted at one end of the rotating shaft, a compressor housing accommodating the compressor wheel and provided with an inlet and an outlet for an air stream, a turbine wheel mounted at the opposite end of the rotating shaft, and a turbine housing accommodating the turbine wheel and provided with an inlet and an outlet for an exhaust gas stream, wherein the bearing housing comprises a fastening flange suitable to be fixed to a component of the internal combustion engine, wherein the turbine housing is provided with a connecting pipe for fluidly connecting the turbine housing inlet with an exhaust manifold of the internal combustion engine, and wherein the connecting pipe includes means, for compensating axial thermal deformations thereof.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: April 7, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Hans H. Drangel, Lorenzo Magro, Luca Trabucchi
  • Publication number: 20140150757
    Abstract: An embodiment of the invention provides a device for distributing and mixing an intake air for an internal combustion engine, comprising an intake manifold connected with an intake air cooling channel and a bypass channel, wherein the intake manifold is provided with an EGR distribution pipe, wherein the EGR distribution pipe, the intake air cooling channel and the bypass channel are arranged to each other in such a way that a first air flow from the intake air cooling channel and a second air flow from the bypass channel pass around the EGR distribution pipe along the same flow direction.
    Type: Application
    Filed: October 8, 2013
    Publication date: June 5, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Hans H. Drangel
  • Publication number: 20130047605
    Abstract: A turbocharger for an internal combustion engine, comprising a bearing housing, a rotating shaft coupled to the bearing housing, a compressor wheel mounted at one end of the rotating shaft, a compressor housing accommodating the compressor wheel and provided with an inlet and an outlet for an air stream, a turbine wheel mounted at the opposite end of the rotating shaft, and a turbine housing accommodating the turbine wheel and provided with an inlet and an outlet for an exhaust gas stream, wherein the bearing housing comprises a fastening flange suitable to be fixed to a component of the internal combustion engine, wherein the turbine housing is provided with a connecting pipe for fluidly connecting the turbine housing inlet with an exhaust manifold of the internal combustion engine, and wherein the connecting pipe includes means for compensating axial thermal deformations thereof.
    Type: Application
    Filed: August 28, 2012
    Publication date: February 28, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Hans H. Drangel, Lorenzo Magro, Luca Trabucchi
  • Publication number: 20130042841
    Abstract: An exhaust gas recirculation system for an internal combustion engine comprising an exhaust gas recirculation conduit fluidly connecting an exhaust manifold to an intake manifold of the internal combustion engine, first and second exhaust gas coolers located in series in the exhaust gas recirculation conduit, each of the first and second exhaust gas coolers comprising an inlet and an outlet fluidly connected to a first and a second coolant circuit respectively, wherein the second coolant circuit comprises a radiator having a coolant inlet in fluid communication with the coolant outlet of the second exhaust gas cooler, a pump having a coolant inlet in fluid communication with a coolant outlet of the radiator and a coolant outlet in fluid communication with the coolant inlet of the second exhaust gas cooler, and an additional conduit fluidly connecting the coolant outlet of the exhaust cooler.
    Type: Application
    Filed: August 14, 2012
    Publication date: February 21, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alberto Vassallo, Hans H. Drangel