US 12,215,614 B2
Exhaust gas system for a hydrogen combustion engine
Gerd Gaiser, Reutlingen (DE)
Assigned to Purem GmbH, Neunkirchen (DE)
Filed by Purem GmbH, Neunkirchen (DE)
Filed on Aug. 11, 2023, as Appl. No. 18/448,557.
Claims priority of application No. 10 2022 120 292.5 (DE), filed on Aug. 11, 2022.
Prior Publication US 2024/0052765 A1, Feb. 15, 2024
Int. Cl. F01N 3/02 (2006.01); F01N 3/00 (2006.01); F01N 3/04 (2006.01); F01N 3/20 (2006.01)
CPC F01N 3/0205 (2013.01) [F01N 3/005 (2013.01); F01N 3/043 (2013.01); F01N 3/2013 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An exhaust gas system for a hydrogen combustion engine including for a vehicle, the exhaust gas system comprising:
a first engine exhaust gas cooler accommodating a flow of engine exhaust gas therethrough for dissipating heat from the engine exhaust gas, said first engine exhaust gas cooler including a first heat exchanger for transferring heat from the engine exhaust gas to a cooling medium including a cooling liquid or cooling gas;
a separator being configured to separate condensate contained in the engine exhaust gas in a region of said first engine exhaust gas cooler and/or downstream of said first engine exhaust gas cooler; and,
an engine exhaust gas heater being configured to warm the engine exhaust gas in a region of said separator and/or downstream of said separator, said engine exhaust gas heater including a second heat exchanger for transferring heat from a heating medium including a heating liquid or heating gas, to the engine exhaust gas;
wherein a heat transfer medium flows through said first heat exchanger and said second heat exchanger to provide said cooling medium and said heating medium.