Patents by Inventor Jassin Fritz

Jassin Fritz 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: 20150159589
    Abstract: An engine system includes a plurality of cylinders including one or more donating cylinders and one or more non-donating cylinders. A control module controls an operation of the one or more donating cylinders relative to, or based on, the operation of the one or more non-donating cylinders.
    Type: Application
    Filed: February 18, 2015
    Publication date: June 11, 2015
    Inventors: Sebastian Freund, Jassin Fritz, Robert Mischler, David Zylinski
  • Patent number: 8944035
    Abstract: Exhaust gas recirculation (EGR) systems and methods are provided. In one embodiment, a method for controlling an engine includes providing a first EGR gas flow to an intake manifold of the engine by closing a first EGR valve or a second EGR valve and at least partially opening the other of the first EGR valve and the second EGR valve, wherein the first and second EGR valves are respectively positioned in first and second EGR passages respectively coupled between first and second donor cylinder groups and an intake manifold, and providing a second EGR gas flow that is higher than the first EGR gas flow to the intake manifold by fully opening the first EGR valve or the second EGR valve and at least partially opening the other of the first EGR valve and the second EGR valve.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: February 3, 2015
    Assignee: General Electric Company
    Inventors: Sebastian Walter Freund, Jassin Fritz, Georgios Bikas, Sean Jenkins
  • Patent number: 8528530
    Abstract: A diesel engine system includes a cylinder, an exhaust manifold, an exhaust gas recirculation (EGR) manifold, and a valve. The exhaust manifold is fluidly coupled with the cylinder and directs exhaust generated in the cylinder to an exhaust outlet that delivers the exhaust to an external atmosphere. The EGR manifold is fluidly coupled with the cylinder and recirculates the exhaust generated in the cylinder back to the cylinder as at least part of intake air that is received by the cylinder. The valve is disposed between the cylinder and the exhaust manifold and between the cylinder and the EGR manifold. The valve has a donating mode and a non-donating mode. The valve fluidly couples the cylinder with the EGR manifold when the valve is in the donating mode and fluidly couples the cylinder with the exhaust manifold when the valve is in the non-donating mode.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: September 10, 2013
    Assignee: General Electric Company
    Inventors: Sebastian W. Freund, Jassin Fritz, Georgios Bikas, Sean Jenkins
  • Publication number: 20130031902
    Abstract: Various methods and systems are provided for an engine. In one example, the system includes a two-stage turbocharger which has first turbocharger with a first turbine and a first compressor and a second turbocharger with a second turbine and a second compressor, where the first turbine and the second turbine are arranged in parallel and the first compressor and the second compressor are arranged in series. The system may include a duct coupling turbine inlets of the first and second turbine, and a valve coupled between the duct and the inlet of the first turbine to throttle flow to first turbine.
    Type: Application
    Filed: August 3, 2011
    Publication date: February 7, 2013
    Inventors: Rodrigo Rodriguez Erdmenger, Douglas C. Hofer, Jassin Fritz, Alberto Scotti Del Greco, Georgios Bikas, Mark Stablein, Sebastian Walter Freund, Vittorio Michelassi
  • Publication number: 20130000614
    Abstract: Exhaust gas recirculation (EGR) systems and methods are provided. In one embodiment, a method for controlling an engine includes providing a first EGR gas flow to an intake manifold of the engine by closing a first EGR valve or a second EGR valve and at least partially opening the other of the first EGR valve and the second EGR valve, wherein the first and second EGR valves are respectively positioned in first and second EGR passages respectively coupled between first and second donor cylinder groups and an intake manifold, and providing a second EGR gas flow that is higher than the first EGR gas flow to the intake manifold by fully opening the first EGR valve or the second EGR valve and at least partially opening the other of the first EGR valve and the second EGR valve.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 3, 2013
    Inventors: Sebastian Walter Freund, Jassin Fritz, Georgios Bikas, Sean Jenkins
  • Publication number: 20120078492
    Abstract: An engine system is provided. The engine system includes a plurality of cylinders including one or more donating cylinders and one or more non-donating cylinders. A control module controls an operation of the one or more donating cylinders relative to, or based on, the operation of the one or more non-donating cylinders.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 29, 2012
    Applicant: General Electric Company
    Inventors: Sebastian W. Freund, Jassin Fritz, Robert Mischler
  • Publication number: 20120000448
    Abstract: A diesel engine system includes a cylinder, an exhaust manifold, an exhaust gas recirculation (EGR) manifold, and a valve. The exhaust manifold is fluidly coupled with the cylinder and directs exhaust generated in the cylinder to an exhaust outlet that delivers the exhaust to an external atmosphere. The EGR manifold is fluidly coupled with the cylinder and recirculates the exhaust generated in the cylinder back to the cylinder as at least part of intake air that is received by the cylinder. The valve is disposed between the cylinder and the exhaust manifold and between the cylinder and the EGR manifold. The valve has a donating mode and a non-donating mode. The valve fluidly couples the cylinder with the EGR manifold when the valve is in the donating mode and fluidly couples the cylinder with the exhaust manifold when the valve is in the non-donating mode.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 5, 2012
    Applicant: General Electric Company
    Inventors: Sebastian W. Freund, Jassin Fritz, Georgios Bikas, Sean Jenkins
  • Publication number: 20110209473
    Abstract: A system and method for waste heat recovery in exhaust gas recirculation is disclosed. The system includes an engine having an intake manifold and an exhaust manifold, an exhaust conduit connected to the exhaust manifold, and a turbocharger having a turbine and a compressor, the turbine being connected to the exhaust conduit to receive a portion of the exhaust gas from the exhaust manifold. The system also includes an EGR system connected to the exhaust conduit to receive a portion of the exhaust gas, with the EGR system including an EGR conduit that is connected to the exhaust conduit to receive a portion of the exhaust gas, a heat exchanger connected to the EGR conduit and being configured to extract heat from the exhaust gas, and a waste heat recovery system connected to the heat exchanger and configured to capture the heat extracted by the heat exchanger.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 1, 2011
    Inventors: Jassin Fritz, Georgios Bikas, Gabor Ast, Alexander Simpson, Thomas Johannes Frey, Rodrigo Rodriguez Erdmenger
  • Patent number: 7878172
    Abstract: Various embodiments of the invention relate to an intake channel of an internal combustion engine in which an adjustable position guide vane is configured to modify the velocity distribution inside the intake channel in order to vary the mean swirl number generated by the channel. The intake channel may comprise a combination of two or more ports, which can be helical or tangential, depending on their shape. By varying the velocity distribution inside the intake channel it is possible to vary the mean swirl number in an internal combustion engine. Contrary to existing systems to vary the swirl in internal combustion engines, the invention proposed does not require the separation of both ports inside the intake channel by a wall in order to achieve a variation in the swirl.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: February 1, 2011
    Assignee: General Electric Company
    Inventors: Jassin Fritz, Rodrigo Rodriguez Erdmenger
  • Publication number: 20090301432
    Abstract: Various embodiments of the invention relate to an intake channel of an internal combustion engine in which an adjustable position guide vane is configured to modify the velocity distribution inside the intake channel in order to vary the mean swirl number generated by the channel. The intake channel may comprise a combination of two or more ports, which can be helical or tangential, depending on their shape. By varying the velocity distribution inside the intake channel it is possible to vary the mean swirl number in an internal combustion engine. Contrary to existing systems to vary the swirl in internal combustion engines, the invention proposed does not require the separation of both ports inside the intake channel by a wall in order to achieve a variation in the swirl.
    Type: Application
    Filed: June 3, 2009
    Publication date: December 10, 2009
    Inventors: Jassin Fritz, Rodrigo Rodriguez Erdmenger
  • Patent number: 7520272
    Abstract: A fuel injector (10) for an internal combustion engine (88) includes a centerbody (12) and a casing (14) disposed radially outward of the centerbody to define an annular mixing section (16) between the centerbody and the casing. The fuel injector also includes an air inlet (e.g., 18) of the mixing section for injecting a first portion (22) of combustion air into the mixing section. A fuel inlet (32) is disposed in the centerbody for injecting fuel (34) into the mixing section. A fuel conduit (48) disposed in the centerbody conducts the fuel to the fuel inlet and a valve (50) disposed in the fuel conduit selectively controls fuel injection into the mixing section. The valve may be positioned sufficiently close to the fuel inlet to provide the desired accurate timed injection. The injector also includes an outlet (19) of the mixing section for discharging a fuel/air mixture (60).
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: April 21, 2009
    Assignee: General Electric Company
    Inventors: Jassin Fritz, Gabor Ast
  • Publication number: 20080083224
    Abstract: A combustor for a gas turbine engine comprises a housing, and a swirler assembly disposed in physical communication with the housing. The swirler assembly comprises a first stage comprising a plurality of first vanes, a second stage comprising a plurality of second vanes, and a third stage comprising a plurality of third vanes. The second stage is disposed downstream of, in fluid communication with, and in physical communication with the first stage. The third stage is disposed downstream of, in fluid communication with, and in physical communication with the second stage.
    Type: Application
    Filed: October 5, 2006
    Publication date: April 10, 2008
    Inventors: Balachandar Varatharajan, Jassin Fritz, Andrei Tristan Evulet
  • Publication number: 20070170283
    Abstract: A futel injector (10) for an internal combustion engine (88) includes a centerbody (12) and a casing (14) disposed radially outward of the centerbody to define an annular mixing section (16) between the centerbody and the casing. The futel injector also includes an air inlet (e.g., 18) of the mixing section for injecting a first portion (22) of combustion air into the mixing section. A fuel inlet (32) is disposed in the centerbody for injecting fuel (34) into the mixing section. A fuel conduit (48) disposed in the centerbody conducts the fuel to the fuel inlet and a valve (50) disposed in the fuel conduit selectively controls fuel injection into the mixing section. The valve may be positioned sufficiently close to the fuel inlet to provide the desired accurate timed injection. The injector also includes an outlet (19) of the mixing section for discharging a fuel/air mixture (60).
    Type: Application
    Filed: January 24, 2006
    Publication date: July 26, 2007
    Inventors: Jassin Fritz, Gabor Ast
  • Publication number: 20070107437
    Abstract: A combustor is provided. The combustor includes a combustor liner and a swirl premixer disposed on a head end of the combustor liner and configured to provide a fuel-air mixture to the combustor. The combustor also includes a plurality of tangentially staged injectors disposed downstream of the swirl premixer on the combustor liner, wherein each of the plurality of injectors is configured to introduce the fuel-air mixture in a transverse direction to a longitudinal axis of the combustor and to sequentially ignite the fuel-air mixtures from adjacent tangential injectors.
    Type: Application
    Filed: November 15, 2005
    Publication date: May 17, 2007
    Inventors: Andrei Evulet, Balachandar Varatharajan, Jassin Fritz