US 11,953,160 B2
Liquid hydrogen storage tank
Guido Bartlok, Graz (AT); and Daniel Kupelwieser, Graz (AT)
Assigned to MAGNA STEYR Fahrzeugtechnik Gmbh & Co KG, Graz (AT)
Filed by MAGNA STEYR Fahrzeugtechnik AG & Co KG, Graz (AT)
Filed on Feb. 21, 2022, as Appl. No. 17/676,631.
Claims priority of application No. 102021202900.0 (DE), filed on Mar. 24, 2021.
Prior Publication US 2022/0307651 A1, Sep. 29, 2022
Int. Cl. F17C 7/04 (2006.01); F17C 13/04 (2006.01)
CPC F17C 7/04 (2013.01) [F17C 13/04 (2013.01); F17C 2205/0323 (2013.01); F17C 2221/012 (2013.01); F17C 2223/0161 (2013.01); F17C 2227/0114 (2013.01); F17C 2250/0439 (2013.01); F17C 2250/0636 (2013.01); F17C 2265/025 (2013.01); F17C 2265/031 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A liquid hydrogen reservoir, comprising:
a cryostatic container operable to hold liquid hydrogen;
a discharge line operable to discharge gaseous hydrogen in the cryostatic container;
a boil-off management system that includes:
a mixing chamber operable to mix the gaseous hydrogen with ambient air,
a catalyst arranged downstream of the mixing chamber and operable for a catalytic conversion of the gaseous hydrogen with the ambient air, and
an exhaust gas line arranged downstream of the catalyst and operable to discharge the gas stream to the environment,
a return line operable to connect the exhaust gas line to the mixing chamber to facilitate a return flow of at least a partial stream of the exhaust gas line into the mixing chamber; and
a boil-off valve, arranged in the discharge line, and operable to selectively open and close a flow connection of the discharge line to the boil-off management system.