Patents by Inventor Sebastian Walter Freund

Sebastian Walter Freund 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: 20120096927
    Abstract: A method includes detecting a presence of a fouling layer in an exhaust gas recirculation cooler of an internal combustion engine. The flow of a coolant through the exhaust gas recirculation cooler is stopped for a predetermined period of time while the engine exhaust gas flows through the exhaust gas recirculation cooler. The flow of an engine exhaust gas exiting from the exhaust gas recirculation cooler is diverted to at least one of a turbine of a turbocharger, and an exhaust pipe of the internal combustion engine. The fouling layer from the exhaust gas recirculation cooler is expelled along with the engine exhaust gas exiting the exhaust gas recirculation cooler.
    Type: Application
    Filed: October 25, 2010
    Publication date: April 26, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Sebastian Walter Freund
  • Publication number: 20120073289
    Abstract: A Rankine cycle system includes: an evaporator configured to receive heat from a heat source and circulate a working fluid to remove heat from the heat source; an expander in flow communication with the evaporator and configured to expand the working fluid fed from the evaporator; a condenser in flow communication with the expander and configured to condense the working fluid fed from the expander; a pump in flow communication with the condenser and configured to pump the working fluid fed from the condenser; a first conduit for feeding a first portion of the working fluid from the pump to the evaporator; and a second conduit for feeding a second portion of the working fluid from the pump to the expander.
    Type: Application
    Filed: September 29, 2010
    Publication date: March 29, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Gabor Ast, Sebastian Walter Freund, Thomas Johannes Frey, Pierre Sebastien Huck, Herbert Kopecek, G√ľnther Wall
  • Publication number: 20120017597
    Abstract: A hybrid power generation system includes a gas turbine engine system and a supercritical rankine cycle system. The gas turbine engine system includes a first compressor, an intercooler, and a second compressor. A first compressor is configured to compress an inlet airflow to produce a first outlet airflow at a first pressure. An intercooler is coupled to the first compressor and configured to cool the first outlet airflow exiting the first compressor to produce a second outlet airflow. A second compressor is coupled to the intercooler and configured to compress the second outlet airflow exiting the intercooler to produce a third outlet airflow at a second pressure. The supercritical rankine cycle system is coupled to the gas turbine engine system.
    Type: Application
    Filed: July 23, 2010
    Publication date: January 26, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sebastian Walter Freund, Thomas Johannes Frey, Pierre Sebastien Huck
  • Publication number: 20110127773
    Abstract: An electricity generation system is presented. The electricity generation system includes a solar preheater for preheating compressed discharge air, a combustor to receive the heated compressed air from the solar preheater, burn a fuel using the heated compressed air to generate hot burned gas, a first turbine to receive the hot burned gas from the combustor, expand the hot burned gas to generate exhaust gas, a heat recovery steam generator to receive the exhaust gas from the first turbine, generate vapor by heating a condensed fluid using the exhaust gas, a solar evaporator/superheater to receive a heated working fluid from the heat recovery steam generator, generate solar vapor by heating the heated working fluid, and a second turbine to drive a second generator using vapor and the solar vapor.
    Type: Application
    Filed: December 1, 2009
    Publication date: June 2, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sebastian Walter Freund, Kevin Richard Lang, Pepe Palafox
  • Publication number: 20110127021
    Abstract: A heat exchanging system is provided. The heat exchanging system includes multiple plates wound spirally around a reaction chamber. The multiple plates also form multiple channels that operate as a counter flow recuperator terminating within the reaction chamber.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 2, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sebastian Walter Freund, Gabriel Rojas Kopeinig
  • Publication number: 20100263842
    Abstract: An organic rankine cycle system for recovering and utilizing waste heat from a waste heat source by using a closed circuit of a working fluid is provided. The organic rankine cycle system includes at least one evaporator. The evaporator further includes a surface-treated substrate for promoting nucleate boiling of the working fluid thereby limiting the temperature of the working fluid below a predetermined temperature. The evaporator is further configured to vaporize the working fluid by utilizing the waste heat from the waste heat source.
    Type: Application
    Filed: April 17, 2009
    Publication date: October 21, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Gabor Ast, Sebastian Walter Freund, Thomas Johannes Frey, Matthew Alexander Lehar, Richard Aumann