US 12,294,128 B2
Systems and methods for energy generation during hydrogen regasification
David T. Montgomery, Edelstein, IL (US); and Robert M. McDavid, Dunlap, IL (US)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Peoria, IL (US)
Filed on Feb. 3, 2022, as Appl. No. 17/649,888.
Prior Publication US 2023/0246211 A1, Aug. 3, 2023
Int. Cl. H01M 8/04858 (2016.01); F02B 63/04 (2006.01); F02B 75/02 (2006.01); F02M 21/02 (2006.01); F02M 21/06 (2006.01); H01M 8/04014 (2016.01); H01M 8/04082 (2016.01); H01M 8/04119 (2016.01)
CPC H01M 8/04925 (2013.01) [F02B 63/04 (2013.01); F02B 75/02 (2013.01); F02M 21/0206 (2013.01); F02M 21/06 (2013.01); H01M 8/04014 (2013.01); H01M 8/04119 (2013.01); H01M 8/04201 (2013.01)] 12 Claims
OG exemplary drawing
 
6. An energy generation method, comprising:
pumping liquid fuel from a storage device to a heat exchanger;
adding heat to the liquid fuel to change the liquid fuel to gaseous fuel in an evaporator of the heat exchanger, the evaporator being connected upstream of an expander;
receiving the gaseous fuel with the expander and generating electrical energy with a generator connected to the expander; and
supplying the gaseous fuel to a fuel cell to generate additional electrical energy or to an internal combustion engine to combust the gaseous fuel, the fuel cell or the internal combustion engine being cooled with coolant, the coolant also being supplied to the heat exchanger to vaporize the liquid fuel with heat that was generated with the fuel cell or with the internal combustion engine.