Patents by Inventor Ramesha Guntanur
Ramesha Guntanur 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: 20220209276Abstract: A fuel cell stack assembly and method of operating the same are provided. The assembly includes a fuel cell stack column and side baffles disposed on opposing sides of the column. The side baffles and the fuel cell stack may have substantially the same coefficient of thermal expansion at room temperature. The side baffles may have a laminate structure in which one or more channels are formed.Type: ApplicationFiled: March 21, 2022Publication date: June 30, 2022Inventors: David EDMONSTON, Martin PERRY, James WILSON, Ramesha GUNTANUR, Paturi Balaji Narasimha PRASAD
-
Patent number: 11309572Abstract: A fuel cell stack assembly and method of operating the same are provided. The assembly includes a fuel cell stack column and side baffles disposed on opposing sides of the column. The side baffles and the fuel cell stack may have substantially the same coefficient of thermal expansion at room temperature. The side baffles may have a laminate structure in which one or more channels are formed.Type: GrantFiled: January 11, 2019Date of Patent: April 19, 2022Assignee: BLOOM ENERGY CORPORATIONInventors: David Edmonston, Martin Perry, James Wilson, Ramesha Guntanur, Paturi Balaji Narasimha Prasad
-
Publication number: 20190148760Abstract: A fuel cell stack assembly and method of operating the same are provided. The assembly includes a fuel cell stack column and side baffles disposed on opposing sides of the column. The side baffles and the fuel cell stack may have substantially the same coefficient of thermal expansion at room temperature. The side baffles may have a laminate structure in which one or more channels are formed.Type: ApplicationFiled: January 11, 2019Publication date: May 16, 2019Inventors: David Edmonston, Martin Perry, James Wilson, Ramesha Guntanur, Paturi Balaji Narasimha Prasad
-
Patent number: 10211479Abstract: A fuel cell stack assembly and method of operating the same are provided. The assembly includes a fuel cell stack column and side baffles disposed on opposing sides of the column. The side baffles and the fuel cell stack may have substantially the same coefficient of thermal expansion at room temperature. The side baffles may have a laminate structure in which one or more channels are formed.Type: GrantFiled: January 28, 2016Date of Patent: February 19, 2019Assignee: BLOOM ENERGY CORPORATIONInventors: David Edmonston, Martin Perry, James Wilson, Ramesha Guntanur, Paturi Balaji Narasimha Prasad
-
Patent number: 9673457Abstract: Various embodiments include interconnects and/or end plates having features for reducing stress in a fuel cell stack. In embodiments, an interconnect/end plate may have a window seal area that is recessed relative to the flow field to indirectly reduce stress induced by an interface seal. Other features may include a thicker protective coating and/or larger uncoated area of an end plate, providing a recessed portion on an end plate for an interface seal, and/or recessing the fuel hole region of an interconnect relative to the flow field to reduce stress on the fuel cell. Further embodiments include providing intermittent seal support to minimize asymmetric seal loading and/or a non-circular seal configuration to reduce stress around the fuel hole of a fuel cell.Type: GrantFiled: November 5, 2013Date of Patent: June 6, 2017Assignee: BLOOM ENERGY CORPORATIONInventors: Vijay Srivatsan, Michael Groesch, Daniel Darga, Matthias Gottmann, Ram Ramanan, Paturi Balaji Narasimha Prasad, Ramesha Guntanur, Ananda Sundararajan, Sachin Parhar
-
Publication number: 20160226093Abstract: A fuel cell stack assembly and method of operating the same are provided. The assembly includes a fuel cell stack column and side baffles disposed on opposing sides of the column. The side baffles and the fuel cell stack may have substantially the same coefficient of thermal expansion at room temperature. The side baffles may have a laminate structure in which one or more channels are formed.Type: ApplicationFiled: January 28, 2016Publication date: August 4, 2016Inventors: David Edmonston, Martin Perry, James Wilson, Ramesha Guntanur, Paturi Balaji Narasimha Prasad
-
Patent number: 9368810Abstract: Various embodiments include interconnects and/or end plates having features for reducing stress in a fuel cell stack. In embodiments, an interconnect/end plate may have a window seal area that is recessed relative to the flow field to indirectly reduce stress induced by an interface seal. Other features may include a thicker protective coating and/or larger uncoated area of an end plate, providing a recessed portion on an end plate for an interface seal, and/or recessing the fuel hole region of an interconnect relative to the flow field to reduce stress on the fuel cell. Further embodiments include providing intermittent seal support to minimize asymmetric seal loading and/or a non-circular seal configuration to reduce stress around the fuel hole of a fuel cell.Type: GrantFiled: November 5, 2013Date of Patent: June 14, 2016Assignee: Bloom Energy CorporationInventors: Daniel Darga, Vijay Srivatsan, Matthias Gottmann, Ram Ramanan, Paturi Balaji Narasimha Prasad, Ramesha Guntanur
-
Patent number: 9368809Abstract: Various embodiments include interconnects and/or end plates having features for reducing stress in a fuel cell stack. In embodiments, an interconnect/end plate may have a window seal area that is recessed relative to the flow field to indirectly reduce stress induced by an interface seal. Other features may include a thicker protective coating and/or larger uncoated area of an end plate, providing a recessed portion on an end plate for an interface seal, and/or recessing the fuel hole region of an interconnect relative to the flow field to reduce stress on the fuel cell. Further embodiments include providing intermittent seal support to minimize asymmetric seal loading and/or a non-circular seal configuration to reduce stress around the fuel hole of a fuel cell.Type: GrantFiled: November 5, 2013Date of Patent: June 14, 2016Assignee: BLOOM ENERGY CORPORATIONInventors: Paturi Balaji Narasimha Prasad, Ramesha Guntanur, Ananda Sundararajan, Natarajan Ramanan, Daniel Darga
-
Publication number: 20140127603Abstract: Various embodiments include interconnects and/or end plates having features for reducing stress in a fuel cell stack. In embodiments, an interconnect/end plate may have a window seal area that is recessed relative to the flow field to indirectly reduce stress induced by an interface seal. Other features may include a thicker protective coating and/or larger uncoated area of an end plate, providing a recessed portion on an end plate for an interface seal, and/or recessing the fuel hole region of an interconnect relative to the flow field to reduce stress on the fuel cell. Further embodiments include providing intermittent seal support to minimize asymmetric seal loading and/or a non-circular seal configuration to reduce stress around the fuel hole of a fuel cell.Type: ApplicationFiled: November 5, 2013Publication date: May 8, 2014Applicant: Bloom Energy CorporationInventors: Paturi Balaji Narasimha Prasad, Ramesha Guntanur, Ananda Sundararajan, Ram Ramanan, Daniel Darga
-
Publication number: 20140127604Abstract: Various embodiments include interconnects and/or end plates having features for reducing stress in a fuel cell stack. In embodiments, an interconnect/end plate may have a window seal area that is recessed relative to the flow field to indirectly reduce stress induced by an interface seal. Other features may include a thicker protective coating and/or larger uncoated area of an end plate, providing a recessed portion on an end plate for an interface seal, and/or recessing the fuel hole region of an interconnect relative to the flow field to reduce stress on the fuel cell. Further embodiments include providing intermittent seal support to minimize asymmetric seal loading and/or a non-circular seal configuration to reduce stress around the fuel hole of a fuel cell.Type: ApplicationFiled: November 5, 2013Publication date: May 8, 2014Applicant: BLOOM ENERGY CORPORATIONInventors: Daniel Darga, Vijay Srivatsan, Matthias Gottmann, Ram Ramanan, Paturi Balaji Narasimha Prasad, Ramesha Guntanur
-
Publication number: 20140127602Abstract: Various embodiments include interconnects and/or end plates having features for reducing stress in a fuel cell stack. In embodiments, an interconnect/end plate may have a window seal area that is recessed relative to the flow field to indirectly reduce stress induced by an interface seal. Other features may include a thicker protective coating and/or larger uncoated area of an end plate, providing a recessed portion on an end plate for an interface seal, and/or recessing the fuel hole region of an interconnect relative to the flow field to reduce stress on the fuel cell. Further embodiments include providing intermittent seal support to minimize asymmetric seal loading and/or a non-circular seal configuration to reduce stress around the fuel hole of a fuel cell.Type: ApplicationFiled: November 5, 2013Publication date: May 8, 2014Applicant: Bloom Energy CorporationInventors: Vijay Srivatsan, Michael Groesch, Daniel Darga, Matthias Gottmann, Ram Ramanan, Paturi Balaji Narasimha Prasad, Ramesha Guntanur, Ananda Sundararajan, Sachin Parhar
-
Patent number: 6685427Abstract: A seal is provided for controlling flow of a fluid in a fluid path in a rotary machine. The seal comprises a brush seal carrier having a front plate and a back plate disposed therein. A brush seal is disposed between the front plate and the back plate. In addition, a flexible member is disposed between the brush seal and the back plate for reducing stress in the brush seal.Type: GrantFiled: July 23, 2002Date of Patent: February 3, 2004Assignee: General Electric CompanyInventors: Vikas Bhushan Dhar, Norman Arnold Turnquist, Ramesha Guntanur Venkatesh, Lokesh Agrawal
-
Publication number: 20040018085Abstract: A seal is provided for controlling flow of a fluid in a fluid path in a rotary machine. The seal comprises a brush seal carrier having a front plate and a back plate disposed therein. A brush seal is disposed between the front plate and the back plate. In addition, a flexible member is disposed between the brush seal and the back plate for reducing stress in the brush seal.Type: ApplicationFiled: July 23, 2002Publication date: January 29, 2004Applicant: General Electric CompanyInventors: Vikas Bhushan Dhar, Norman Arnold Turnquist, Ramesha Guntanur Venkatesh, Lokesh Agrawal