Exhaust gas system for a hydrogen combustion engine
AssigneePurem GmbH
InventorGerd Gaiser
Life of this patent
Estimating the term…
Abstract
An exhaust gas system for a hydrogen combustion engine including for a vehicle, the exhaust gas system including: a first engine exhaust gas cooler accommodating a flow of engine exhaust gas therethrough for dissipating heat from the engine exhaust gas; a separator being configured to separate condensate contained in the engine exhaust gas in a region of the first engine exhaust gas cooler and/or downstream of the first engine exhaust gas cooler; and, an engine exhaust gas heater being configured to warm the engine exhaust gas in a region of the separator and/or downstream of the separator.
Claims17
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.
A drive system for a vehicle, the drive system comprising:
- a hydrogen combustion engine;
- and,
- an exhaust gas system for said hydrogen combustion engine,
- said exhaust gas system including:
- 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.
A method for operating a drive system including a hydrogen combustion engine for a vehicle, the drive system including 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, the method comprising:
- cooling the engine exhaust gas outputted by said hydrogen combustion engine to condense water by the heat transfer medium flowing through the first heat exchanger;
- removing water vapor from the engine exhaust gas;
- and,
- heating the engine exhaust gas from which water vapor was removed.
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 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 composite heat exchanger provides said first heat exchanger and said second heat exchanger;
- said composite heat exchanger including an upstream heat exchanger region accommodating the flow of the engine exhaust gas therethrough and a downstream heat exchanger region downstream of said upstream heat exchanger region;
- and, said downstream heat exchanger region lying in heat transfer interaction with said upstream heat exchanger region.
Dependencies are inferred from the claim text.