240 patents
Page 4 of 12
Utility
Fuel Cell Systems and Methods with Improved Fuel Utilization
11 May 23
A fuel cell system includes at least one hot box including a fuel cell stack and producing an anode exhaust product, at least one hydrogen pump, at least one product conduit fluidly connecting an anode exhaust product outlet of the hot box to an inlet of the at least one hydrogen pump, a compressed hydrogen product conduit connected to a compressed hydrogen product outlet of the at least one hydrogen pump, and at least one effluent conduit connected to an unpumped effluent outlet of the at least one hydrogen pump.
David WEINGAERTNER, Michael GASDA, Martin PERRY
Filed: 7 Oct 22
Utility
Hybrid Fuel Cell System for Load Following and Backup In a Microgrid and Method of Operating Thereof
11 May 23
A method for operating a fuel cell system includes drawing a base level DC electric energy from a first fuel cell of a first type to a combined DC bus, measuring a DC voltage at the combined DC bus, determining whether the DC voltage at the combined DC bus falls short of a DC voltage threshold, and drawing a variable DC electric energy from a second fuel cell of a second type different from the first type in response to determining that the DC voltage at the combined DC bus falls short of the DC voltage threshold.
Prasad PMSVVSV, Jayakumar KRISHNADASS
Filed: 4 Nov 22
Utility
Multi-input Multi-output Renewable Energy Systems
4 May 23
Various embodiments of the present disclosure provide a multi-input multi-output energy charging system to generate hydrogen, provide baseload energy to a facility, and provide electrical power to charge electric vehicles (EV).
Barry SHARPE, Brian HADLEY, Charles Frederick WALTON
Filed: 27 Oct 22
Utility
Glow Plug for a Fuel Cell System
27 Apr 23
Various embodiments disclose a glow plug for a solid oxide fuel cell system.
Vivek Kumar SINGH, Siddharth PATEL, Mike PETRUCHA, Junyi LEE
Filed: 13 Oct 22
Utility
Glow Plug for a Fuel Cell System
27 Apr 23
Various embodiments disclose a glow plug for a solid oxide fuel cell system.
Vivek Kumar SINGH, Siddharth PATEL, Mike PETRUCHA, Nick ARCELONA, Junyi LEE
Filed: 21 Oct 22
Utility
Methods of fuel cell operation with bi-directional inverters
25 Apr 23
A microgrid system includes first and second DC power sources electrically connected to respective first and second DC electrical power busses, a first uninterruptable power module electrically connected to the first DC electrical power bus and configured to be connected to an alternating current (AC) load, a second uninterruptable power module electrically connected to the second DC electrical power bus and configured to be connected to the AC load, a first bi-directional AC/DC inverter having a DC end and an AC end, where the first DC electrical power bus is connected to the DC end of the first bi-directional AC/DC inverter, a second bi-directional AC/DC inverter having DC and AC ends, where the second DC electrical power bus is connected to the DC end of the second bi-directional AC/DC inverter, and an AC electrical power bus electrically connected to the first and second bi-directional AC/DC inverters at their AC ends.
Prasad Pmsvvsv, Beau Baker, Craig Metcho
Filed: 11 May 21
Utility
Fuel Cell System Including Ato Injector and Method of Operating the Same
13 Apr 23
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.
David EDMONSTON, David WEINGAERTNER, Michael PETRUCHA, Ivan HARTANA
Filed: 9 Dec 22
Utility
Solid oxide fuel cell system with hydrogen pumping cell with carbon monoxide tolerant anodes and integrated shift reactor
28 Mar 23
A fuel cell system includes a fuel cell stack, a fuel inlet conduit configured to provide a fuel to a fuel inlet of the fuel cell stack, an electrochemical pump separator containing an electrolyte, a cathode, and a carbon monoxide tolerant anode, a fuel exhaust conduit that operatively connects a fuel exhaust outlet of the fuel cell stack to an anode inlet of the electrochemical pump separator, and a product conduit which operatively connects a cathode outlet of the electrochemical pump separator to the fuel inlet conduit.
Chockkalingam Karuppaiah, Michael Gasda, Arne Ballantine, Martin Perry, Andy Ta, Kyle Kekelis, Srikanth Ranganathan
Filed: 13 Feb 20
Utility
Fuel Cell System Containing Catalyst Based Fuel Contamination Sensor and Method of Operating Thereof
23 Feb 23
A method for operating a fuel cell system is provided.
Laxmikant GIRWALKAR, Aniket PRATAP, David WEINGAERTNER, Srikanth RANGANATHAN
Filed: 22 Aug 22
Utility
Non-isolated Single Input Dual-output Bi-directional Buck-boost DC-DC Converter
9 Feb 23
Various embodiments may provide non-isolated single-input dual-output (SIDO) bi-directional buck-boost direct current (DC) to DC (DC-DC) converters.
Ranganathan GURUNATHAN, Rakesh ROY, Bala Subrahmanyam KUCHIBHATLA, Srinivas Rao POTTA, Deepak BALAKRISHNAN
Filed: 5 May 22
Utility
Large Site Fuel Cell System and Method of Installing Same
2 Feb 23
A modular fuel cell subsystem includes multiple rows of modules, where each row comprises a plurality of fuel cell power modules and a power conditioning module containing a DC to AC inverter electrically connected the power modules.
Srihari Raghavan, David Trevisan, Richard Leitch, Armando Gomez, Aaron Ells, Jessica Mahler
Filed: 28 Jul 22
Utility
Electrolyzer System with Steam Generation and Method of Operating Same
19 Jan 23
An electrolyzer system includes a stack of solid oxide electrolyzer cells configured receive steam and output a hydrogen exhaust and an oxygen exhaust, a supplemental steam generator configured to generate the steam provided to the stack by vaporizing water using heat extracted from the oxygen exhaust, a water preheater configured to preheat water using heat extracted from the oxygen exhaust, and a primary steam generator configured to generate the steam provided to the stack by vaporizing the water preheated by the water preheater.
David WEINGAERTNER
Filed: 18 Jul 22
Utility
Solid Oxide Fuel Cell System Containing Low Temperature Oxidizer and Method of Operating Same with Reduced Carbon Monoxide Output
12 Jan 23
A fuel cell system includes a fuel cell stack configured to generate electricity, an anode exhaust and a cathode exhaust, an anode tail gas oxidizer (ATO) configured to oxidize the anode exhaust using the cathode exhaust, and a low-temperature oxidizer (LTO) configured to catalyze oxidation of carbon monoxide (CO) in the cathode exhaust output from the ATO.
Srikanth RANGANATHAN, Victor SILVA
Filed: 11 Jul 22
Utility
Fuel cell system including ATO injector and method of operating the same
10 Jan 23
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.
David Edmonston, David Weingaertner, Michael Petrucha, Ivan Hartana
Filed: 15 Jul 20
Utility
Systems and methods of restoring fuel cell system performance
3 Jan 23
A fuel cell system performance recovery method includes applying a DC current load pulse waveform to one or more of the fuel cells for a recovery period sufficient to desorb a contaminant from the one or more fuel cells.
Karthick Sudhan, Amit Nawathe, Abhishek Dudhmande, Vijay Radhakrishnan, Padiadpu Shankara Anantha
Filed: 17 Oct 18
Utility
Handling of Variable and Unpredictable Gas Composition Changes to Maximize Health and Performance of Fuel Cell Systems
29 Dec 22
A disclosed fuel cell system includes a fuel inlet that receives a fuel gas from a fuel source, a gas analyzer that determines a composition of the fuel gas received by the fuel inlet, and a stack including fuel cells that generate electricity using the fuel gas received from the fuel source.
Zeerek A. AHMAD, Adrian ONG, Suthitham KUSOLASAK, Ali ZARGARI, Jeffrey Crim CARLSON
Filed: 21 Jun 22
Utility
Solid Oxide Fuel Cell Having Laminated Anode and Electrolyte Layers and Method of Making Thereof
15 Dec 22
A solid oxide fuel cell (SOFC) includes a ceramic electrolyte having a thickness of 100 microns or less, an anode laminated to a first side of the electrolyte, and a cathode located on a second side of the electrolyte opposite to the first side.
Emad El Batawi
Filed: 10 Jun 22
Utility
Fuel Plenum and Fuel Cell Stack Including Same
8 Dec 22
A fuel cell stack fuel plenum includes a base plate including an inlet hole and an outlet hole, a dielectric layer disposed on the base plate and including an inlet hole and an outlet hole, a cover plate disposed on the dielectric layer and including an inlet hole and an outlet hole, a seal plate disposed on the cover plate and including an inlet hole and an outlet hole, and a manifold plate disposed on the seal plate.
David EDMONSTON, Michael PETRUCHA, Martin PERRY, Matthias GOTTMANN, Victor SILVA, Joshua BAIME
Filed: 1 Jun 22
Utility
Aqueous fuel cell system component ink compositions and methods of forming fuel cell system components using the same
29 Nov 22
A method of forming a fuel cell system component includes dispensing an ink onto a substrate to form an ink layer, the ink containing a fuel cell system component powder, an aqueous carrier, and an emulsion comprising a water-insoluble binder and a water soluble co-solvent, and solidifying the ink layer to form the fuel cell system component.
Perry Scheetz, Andres Leming, Olexa Stavila, Ehteram Yoosefi
Filed: 17 May 21
Utility
Electrolyzer System with Steam Generation and Method of Operating Same
24 Nov 22
An electrolyzer system includes a steam generator configured to generate steam, a stack of solid oxide electrolyzer cells configured to generate a hydrogen stream using the steam received from the steam generator, and a water preheater configured to preheat water provided to the steam generator using heat extracted from oxygen exhaust output from the stack.
David WEINGAERTNER, Andy TA, Navaneethakrishnan GOVINDARASU, Siddharth PATEL, Kim NGUYEN, Nandan JOSHI, Shannon BELL
Filed: 17 May 22