Patents by Inventor Madhu Krishnan Iyengar

Madhu Krishnan Iyengar 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: 11109517
    Abstract: A server rack thermosiphon system includes a plurality of evaporators, each evaporator including a thermal interface for one or more heat-generating server rack devices; at least one condenser mounted to an external structure of a server rack, the condenser including a fluid-cooled heat transfer module; a liquid conduit that fluidly couples each of the evaporators to the condenser to deliver a liquid phase of a working fluid from the condenser to the evaporators; and a vapor conduit that fluidly couples each of the evaporators to the condenser to deliver a mixed phase of the working fluid from the evaporators to the condenser.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: August 31, 2021
    Assignee: Google LLC
    Inventors: Soheil Farshchian, Madhu Krishnan Iyengar
  • Publication number: 20200015387
    Abstract: A server rack thermosiphon system includes a plurality of evaporators, each evaporator including a thermal interface for one or more heat-generating server rack devices; at least one condenser mounted to an external structure of a server rack, the condenser including a fluid-cooled heat transfer module; a liquid conduit that fluidly couples each of the evaporators to the condenser to deliver a liquid phase of a working fluid from the condenser to the evaporators; and a vapor conduit that fluidly couples each of the evaporators to the condenser to deliver a mixed phase of the working fluid from the evaporators to the condenser.
    Type: Application
    Filed: August 29, 2019
    Publication date: January 9, 2020
    Inventors: Soheil Farshchian, Madhu Krishnan Iyengar
  • Patent number: 10448543
    Abstract: A server rack thermosiphon system includes a plurality of evaporators, each evaporator including a thermal interface for one or more heat-generating server rack devices; at least one condenser mounted to an external structure of a server rack, the condenser including a fluid-cooled heat transfer module; a liquid conduit that fluidly couples each of the evaporators to the condenser to deliver a liquid phase of a working fluid from the condenser to the evaporators; and a vapor conduit that fluidly couples each of the evaporators to the condenser to deliver a mixed phase of the working fluid from the evaporators to the condenser.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: October 15, 2019
    Assignee: Google LLC
    Inventors: Soheil Farshchian, Madhu Krishnan Iyengar
  • Patent number: 10130013
    Abstract: A data center cooling system includes an outer container that defines a first volume; an inner container that defines a second volume and is positioned within the first volume, the inner container including an air outlet that includes an airflow path between the first and second volumes; a liquid seal to fluidly isolate a liquid phase of a non-conductive coolant that fills at least a portion of the first and second volumes from an ambient environment; and a plurality of electronic heat-generating devices at least partially immersed in the liquid phase of the non-conductive coolant to transfer a heat load to the non-conductive coolant.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: November 13, 2018
    Assignee: Google LLC
    Inventors: Madhu Krishnan Iyengar, Christopher G. Malone, Gregory P. Imwalle
  • Patent number: 10032695
    Abstract: A semiconductor package includes a substrate, an integrated circuit disposed on the substrate, a memory support disposed on the integrated circuit, stacked memory disposed on the memory support and in communication with the integrated circuit, and a lid connected to the substrate. The integrated circuit has a low power region and a high power region. The memory support is disposed on the low power region of the integrated circuit and is configured to allow a flow of fluid therethrough to conduct heat away from the low power region of the integrated circuit. The lid defines a first port, a second port, and a lid volume fluidly connecting the first port and the second port. The lid volume is configured to house the integrated circuit, the memory support, and the stacked memory, while directing the flow of fluid to flow over the integrated circuit, the memory support, and the stacked memory.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: July 24, 2018
    Assignee: Google LLC
    Inventors: Madhu Krishnan Iyengar, Teck-Gyu Kang, Christopher Gregory Malone, Norman Paul Jouppi
  • Publication number: 20170243806
    Abstract: A semiconductor package includes a substrate, an integrated circuit disposed on the substrate, a memory support disposed on the integrated circuit, stacked memory disposed on the memory support and in communication with the integrated circuit, and a lid connected to the substrate. The integrated circuit has a low power region and a high power region. The memory support is disposed on the low power region of the integrated circuit and is configured to allow a flow of fluid therethrough to conduct heat away from the low power region of the integrated circuit. The lid defines a first port, a second port, and a lid volume fluidly connecting the first port and the second port. The lid volume is configured to house the integrated circuit, the memory support, and the stacked memory, while directing the flow of fluid to flow over the integrated circuit, the memory support, and the stacked memory.
    Type: Application
    Filed: February 19, 2016
    Publication date: August 24, 2017
    Applicant: Google Inc.
    Inventors: Madhu Krishnan Iyengar, Teck-Gyu Kang, Christopher Gregory Malone, Norman Paul Jouppi
  • Patent number: 9596787
    Abstract: A data center cooling system includes an outer container that defines a first volume; an inner container that defines a second volume and is positioned within the first volume, the inner container including an air outlet that includes an airflow path between the first and second volumes; a liquid seal to fluidly isolate a liquid phase of a non-conductive coolant that fills at least a portion of the first and second volumes from an ambient environment; and a plurality of electronic heat-generating devices at least partially immersed in the liquid phase of the non-conductive coolant to transfer a heat load to the non-conductive coolant.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: March 14, 2017
    Assignee: Google Inc.
    Inventors: Madhu Krishnan Iyengar, Christopher G. Malone, Gregory P. Imwalle
  • Publication number: 20160330873
    Abstract: A server rack thermosiphon system includes a plurality of evaporators, each evaporator including a thermal interface for one or more heat-generating server rack devices; at least one condenser mounted to an external structure of a server rack, the condenser including a fluid-cooled heat transfer module; a liquid conduit that fluidly couples each of the evaporators to the condenser to deliver a liquid phase of a working fluid from the condenser to the evaporators; and a vapor conduit that fluidly couples each of the evaporators to the condenser to deliver a mixed phase of the working fluid from the evaporators to the condenser.
    Type: Application
    Filed: May 4, 2015
    Publication date: November 10, 2016
    Inventors: Soheil Farshchian, Madhu Krishnan Iyengar