US 12,327,892 B2
Fuel cell cooling
Peter David Hood, Loughborough (GB)
Filed by Intelligent Energy Limited, Loughborough (GB)
Filed on Jun. 4, 2023, as Appl. No. 18/205,539.
Application 18/205,539 is a division of application No. 13/126,969, abandoned, previously published as PCT/GB2009/002560, filed on Oct. 20, 2009.
Claims priority of application No. 0819863 (GB), filed on Oct. 30, 2008.
Prior Publication US 2023/0317981 A1, Oct. 5, 2023
Int. Cl. H01M 8/04029 (2016.01); H01M 8/04044 (2016.01); H01M 8/04119 (2016.01); H01M 8/04291 (2016.01); H01M 8/04828 (2016.01); H01M 8/0444 (2016.01); H01M 8/04537 (2016.01); H01M 8/10 (2016.01)
CPC H01M 8/04029 (2013.01) [H01M 8/04044 (2013.01); H01M 8/04134 (2013.01); H01M 8/04141 (2013.01); H01M 8/04156 (2013.01); H01M 8/04291 (2013.01); H01M 8/04828 (2013.01); H01M 8/04485 (2013.01); H01M 8/04589 (2013.01); H01M 2008/1095 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method of operating a fuel cell system (100) comprising a fuel cell stack (110) and a closed loop water cooling circuit for direct injection of cooling water into the stack (110), the method comprising:
measuring an operational parameter of the fuel cell system (100) over a time period;
adding an amount of liquid water to the closed loop cooling circuit from a total amount of water generated by the fuel cell stack (110) during operation of the fuel cell stack (110) over the time period; and characterized by removing the amount of liquid water from the closed loop cooling circuit, wherein the amount of liquid water as a proportion of the total amount of water generated during operation of the fuel cell stack (110) over the time period is automatically determined by the fuel cell system as a function of the operational parameter, wherein the operational parameter is an electric current drawn from the fuel cell stack (110) over the time period.