Patents by Inventor Ivan Hartana

Ivan Hartana 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: 11658320
    Abstract: A method of operating a fuel cell system includes providing an anode exhaust from a fuel cell stack to a water injector, supplying water to the water injector, and injecting the water from the water injector into the anode exhaust to vaporize the water and generate a humidified anode exhaust.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: May 23, 2023
    Assignee: BLOOM ENERGY CORPORATION
    Inventors: David Weingaertner, Ivan Hartana, David Edmonston, Michael Petrucha, Martin Perry
  • Publication number: 20230116009
    Abstract: A fuel cell system includes a fuel cell stack, an anode tail gas oxidizer (ATO), an ATO injector configured to mix a first portion of an anode exhaust from the fuel cell stack with a cathode exhaust from the fuel cell stack and to provide a mixture of the first portion of the anode exhaust and the cathode exhaust into the ATO, an anode exhaust conduit which is configured to provide the first portion of the anode exhaust into the ATO injector, and cathode exhaust conduit which is configured to provide at least a portion of the cathode exhaust from the fuel cell stack into the ATO injector. The ATO injector includes injector tubes or injection apertures.
    Type: Application
    Filed: December 9, 2022
    Publication date: April 13, 2023
    Inventors: David EDMONSTON, David WEINGAERTNER, Michael PETRUCHA, Ivan HARTANA
  • Patent number: 11552312
    Abstract: A fuel cell system includes a fuel cell stack, an anode tail gas oxidizer (ATO), an ATO injector configured to mix a first portion of an anode exhaust from the fuel cell stack with a cathode exhaust from the fuel cell stack and to provide a mixture of the first portion of the anode exhaust and the cathode exhaust into the ATO, an anode exhaust conduit which is configured to provide the first portion of the anode exhaust into the ATO injector, and cathode exhaust conduit which is configured to provide at least a portion of the cathode exhaust from the fuel cell stack into the ATO injector. The ATO injector includes injector tubes or injection apertures.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: January 10, 2023
    Assignee: BLOOM ENERGY CORPORATION
    Inventors: David Edmonston, David Weingaertner, Michael Petrucha, Ivan Hartana
  • Publication number: 20220059856
    Abstract: A method of operating a fuel cell system includes providing an anode exhaust from a fuel cell stack to a water injector, supplying water to the water injector, and injecting the water from the water injector into the anode exhaust to vaporize the water and generate a humidified anode exhaust.
    Type: Application
    Filed: November 5, 2021
    Publication date: February 24, 2022
    Inventors: David Weingaertner, Ivan Hartana, David Edmonston, Michael Petrucha, Martin Perry
  • Patent number: 11196068
    Abstract: A method of operating a fuel cell system includes providing an anode exhaust from a fuel cell stack to a water injector, supplying water to the water injector, and injecting the water from the water injector into the anode exhaust to vaporize the water and generate a humidified anode exhaust.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: December 7, 2021
    Assignee: BLOOM ENERGY CORPORATION
    Inventors: David Weingaertner, Ivan Hartana, David Edmonston, Michael Petrucha, Martin Perry
  • Patent number: 11081704
    Abstract: A fuel cell system includes fuel cells disposed in a stack and separated by interconnects, a cathode recuperator configured to heat air provided to the stack using reaction exhaust provided from the stack, a steam generator configured to receive the reaction exhaust from the cathode recuperator and generate steam using the reaction exhaust, a hot box housing the stack, cathode recuperator, and steam generator, and a Cr filter including a porous metal and configured to remove Cr vapor species from the reaction exhaust.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: August 3, 2021
    Assignee: BLOOM ENERGY CORPORATION
    Inventors: Adil Ashary, Martin Perry, David Weingaertner, Richard Dole, Ivan Hartana, Emad El Batawi
  • Publication number: 20210020967
    Abstract: A fuel cell system includes a fuel cell stack, an anode tail gas oxidizer (ATO), an ATO injector configured to mix a first portion of an anode exhaust from the fuel cell stack with a cathode exhaust from the fuel cell stack and to provide a mixture of the first portion of the anode exhaust and the cathode exhaust into the ATO, an anode exhaust conduit which is configured to provide the first portion of the anode exhaust into the ATO injector, and cathode exhaust conduit which is configured to provide at least a portion of the cathode exhaust from the fuel cell stack into the ATO injector. The ATO injector includes injector tubes or injection apertures.
    Type: Application
    Filed: July 15, 2020
    Publication date: January 21, 2021
    Inventors: David EDMONSTON, David WEINGAERTNER, Michael PETRUCHA, Ivan HARTANA
  • Publication number: 20200243885
    Abstract: A method of operating a fuel cell system includes providing an anode exhaust from a fuel cell stack to a water injector, supplying water to the water injector, and injecting the water from the water injector into the anode exhaust to vaporize the water and generate a humidified anode exhaust.
    Type: Application
    Filed: January 14, 2020
    Publication date: July 30, 2020
    Inventors: David WEINGAERTNER, Ivan HARTANA, David EDMONSTON, Michael PETRUCHA, Martin PERRY
  • Publication number: 20200119370
    Abstract: A fuel cell system includes fuel cells disposed in a stack and separated by interconnects, a cathode recuperator configured to heat air provided to the stack using reaction exhaust provided from the stack, a steam generator configured to receive the reaction exhaust from the cathode recuperator and generate steam using the reaction exhaust, a hot box housing the stack, cathode recuperator, and steam generator, and a Cr filter including a porous metal and configured to remove Cr vapor species from the reaction exhaust.
    Type: Application
    Filed: October 11, 2019
    Publication date: April 16, 2020
    Inventors: Adil Ashary, Martin Perry, David Weingaertner, Richard Dole, Ivan Hartana, Emad El Batawi