US 11,715,837 B2
Systems and methods of using an energy storage device to assist an ejector
Richard Ancimer, Toronto (CA)
Assigned to CUMMINS INC., Columbus, IN (US)
Filed by CUMMINS INC., Columbus, IN (US)
Filed on Feb. 3, 2022, as Appl. No. 17/592,231.
Claims priority of provisional application 63/215,087, filed on Jun. 25, 2021.
Prior Publication US 2022/0416269 A1, Dec. 29, 2022
Int. Cl. H01M 8/04858 (2016.01); H01M 8/043 (2016.01); H01M 8/04701 (2016.01); H01M 8/04746 (2016.01); H01M 8/249 (2016.01); H01M 16/00 (2006.01); H01M 8/04955 (2016.01); H01M 8/04223 (2016.01); H01M 8/04537 (2016.01)
CPC H01M 8/0491 (2013.01) [H01M 8/043 (2016.02); H01M 8/04701 (2013.01); H01M 8/04753 (2013.01); H01M 8/249 (2013.01); H01M 16/006 (2013.01); H01M 8/04223 (2013.01); H01M 8/04574 (2013.01); H01M 8/04582 (2013.01); H01M 8/04589 (2013.01); H01M 8/04895 (2013.01); H01M 8/04902 (2013.01); H01M 8/04955 (2013.01); H01M 2250/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fuel cell stack system, comprising:
a fuel cell stack, an ejector, a blower, and an energy storage device,
wherein the fuel cell stack system is configured to operate at a first pressure or a first temperature in a transient lag state that is higher than a second pressure or a second temperature in a transient state, respectively, and wherein a controller is configured to operate the fuel cell stack system at a second operating current density when the fuel cell stack system is required to operate at a first operating current density.