Jeffrey H Carlson

US Patent:

D3292410, Sep 8, 1992

Filed:

Feb 10, 1992

Appl. No.:

7/832500

Inventors:

Jeffrey S. Carlson - Canyon Country CA

US Classification:

D14250

US Patent:

20220416276, Dec 29, 2022

Filed:

Jun 21, 2022

Appl. No.:

17/807986

Inventors:

- San Jose CA, US
Adrian ONG - San Ramon CA, US
Ali ZARGARI - Santa Clara CA, US
Jeffrey Crim CARLSON - Mountain View CA, US

International Classification:

H01M 8/04746
H01M 8/0444

Abstract:

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. The fuel cell system further includes a controller that controls at least one of a fuel utilization of the stack, a current generated by the stack, or a voltage generated by the stack, based on the composition of the primary fuel gas determined by the gas analyzer. The controller may control the fuel cell system by increasing or decreasing a fuel flow rate to thereby increase or decrease the voltage generated by the stack to maintain a predetermined target voltage or to maintain a predetermined rate at which usable fuel is supplied to the stack based on composition.