Abstract: A vehicle includes a fuel cell system with a fuel cell arrangement and a fuel cell exhaust gas system receiving fuel cell exhaust gas from the fuel cell arrangement. The fuel cell exhaust gas system has a fuel cell exhaust gas outlet region for discharging fuel cell exhaust gas from the fuel cell exhaust gas system, and an ambient air heating arrangement for heating ambient air to be mixed with at least part of the fuel cell exhaust gas. The ambient air heating arrangement has an ambient air outlet region for discharging ambient air heated in the ambient air heating arrangement. The fuel cell exhaust gas outlet region is positioned downstream of the ambient air outlet region with respect to an ambient air flow direction of the heated ambient air discharged from the ambient air heating arrangement at the ambient air outlet region.

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.

Abstract: A fuel cell system includes a fuel cell, an anode region which is to be fed with hydrogen at an anode inlet of the fuel cell, a cathode region which is to be fed with oxygen via a cathode inlet conduit at a cathode inlet of the fuel cell, a cathode gas conveyor for conveying cathode gas into the cathode inlet conduit, an anode outlet conduit which accepts anode offgas at an anode outlet of the fuel cell, a catalytic converter through which the anode offgas can flow in the anode outlet conduit, a cathode outlet conduit which accepts cathode offgas at a cathode outlet of the fuel cell, and a cathode branch conduit that connects the cathode inlet conduit to the anode outlet conduit upstream of the catalytic converter.

Abstract: A fuel cell system includes a fuel cell having an anode region and a cathode region. The fuel cell defines an anode inlet to permit feeding the anode region with hydrogen and defines a cathode inlet to permit feeding the cathode region with oxygen. The fuel cell has an anode outlet and has a cathode outlet. An anode outlet conduit receives anode offgas at the anode outlet and a catalytic converter is arranged so as to permit the anode offgas in the anode outlet conduit to flow therethrough. A cathode outlet conduit is arranged for receiving cathode offgas at the cathode outlet. A cathode branch conduit connects the cathode outlet conduit to the anode outlet conduit upstream of the catalytic converter.

Abstract: A fuel cell exhaust gas system includes a fuel cell arrangement outputting a fuel cell exhaust gas, an ambient air heating arrangement for heating ambient air to provide heated ambient air and, a fuel cell exhaust gas/ambient air mixing arrangement configured for receiving the fuel cell exhaust gas and the heated ambient air and being configured to thoroughly mix the heated ambient air with the fuel cell exhaust gas.

Abstract: A heating system for a vehicle includes a reaction space (16) containing a first reactant (22) and a reactant storage space (20) containing or/and receiving a second reactant (24), wherein the first reactant and the second reactant form such a reaction system. A reaction of the first reactant with the second reactant produces a reaction product that releases heat. The second reactant can be separated from the first reactant by introducing heat into the reaction product. A reactant-releasing device (26) releases second reactant from the reactant storage space into the reaction space (16). A first heat removal device (58) removes heat from the first reactant or/and reaction product contained in the reaction space (16). A heating unit (52) heats the first reactant or/and heats the reaction product contained in the reaction space. A reactant-recirculating device (36) recirculates second reactant from the reaction space into the reactant storage space.

Abstract: A fuel cell exhaust-gas system includes at least one condenser for receiving water-containing fuel cell exhaust gas that has been discharged from a fuel cell and for discharging water-depleted fuel cell exhaust gas. The at least one condenser includes a separator for separating off water that has been condensed out of the water-containing fuel cell exhaust gas that has been fed to the at least one condenser and at least one heat exchanger, wherein the water-containing fuel cell exhaust gas that is fed to at least one condenser, and water-depleted fuel cell exhaust gas that has been discharged from at least one condenser, can flow through the at least one heat exchanger in order for heat of the water-containing fuel cell exhaust gas to be transferred to the water-depleted fuel cell exhaust gas.

Abstract: The disclosure is directed to an exhaust gas heating unit for an exhaust gas system of an internal combustion engine. The exhaust gas heating unit includes at least one electrically conductive heating conductor element, wherein the at least one electrically conductive heating conductor element is configured from bent flat strip material. The exhaust gas system conducts exhaust gas defining an exhaust gas primary flow direction (H). The heating conductor element can have a plurality of broad sides arranged to be substantially parallel to the exhaust gas primary flow direction (H) and a plurality of end faces arranged substantially orthogonally to the exhaust gas primary flow direction (H).

Abstract: A fuel cell exhaust gas system includes a first fuel cell exhaust gas cooler for accommodating a flow of fuel cell exhaust gas therethrough to dissipate heat from the fuel cell exhaust gas; and, a first separator separating condensate held in the fuel cell exhaust gas. The first separator is disposed near or downstream of the first fuel cell exhaust gas cooler. The system further includes a fuel cell exhaust gas heater for heating the fuel cell exhaust gas; and, the fuel cell exhaust gas heater is disposed near or downstream of the first separator.

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.

Abstract: A heating unit for an exhaust-gas system of an internal combustion engine includes a heating-unit housing for conducting an exhaust-gas in a main flow direction. A plurality of heating elements are arranged in the heating-unit housing and are shaped in a meandering manner. Each heating element has a plurality of plate-like heating sections which follow one another in a heating-element longitudinal direction. The heating sections of each heating element are connected to one another via respective connecting sections. Each heating element has two connection regions which are arranged at a distance from one another. In each connection region, the heating elements are electrically conductively connected to a connection region of a further heating element.

Abstract: An exhaust gas heating unit for an exhaust system of an internal combustion engine includes a jacket heating conductor element (12) with a jacket (16) and with an electrical heating conductor (14). The electrical heating conductor (14) extends in the jacket (16) and is surrounded by insulating material (18). A heat transfer surface formation (20) is arranged on an outer side of the jacket (16) and is in heat transfer contact with same.

Abstract: A heating unit for an exhaust-gas system of an internal combustion engine includes a heating-unit housing for conducting an exhaust-gas in a main flow direction. A plurality of heating elements are arranged in the heating-unit housing and are shaped in a meandering manner. Each heating element has a plurality of plate-like heating sections which follow one another in a heating-element longitudinal direction. The heating sections of each heating element are connected to one another via respective connecting sections. Each heating element has two connection regions which are arranged at a distance from one another. In each connection region, the heating elements are electrically conductively connected to a connection region of a further heating element.

Abstract: An exhaust gas heating arrangement includes a heating unit having a jacketed heating element having a jacket and at least one heating conductor which extends in the jacket and is surrounded by insulating material. The heating unit is spirally wound surrounding a longitudinal center axis (L), wherein a radially inner winding end region of the heating unit is offset with respect to a radially outer winding end region of the heating unit in the direction towards the longitudinal center axis (L).

Abstract: The disclosure is directed to an exhaust gas heating unit for an exhaust gas system of an internal combustion engine. The exhaust gas heating unit includes at least one electrically conductive heating conductor element, wherein the at least one electrically conductive heating conductor element is configured from bent flat strip material. The exhaust gas system conducts exhaust gas defining an exhaust gas primary flow direction (H). The heating conductor element can have a plurality of broad sides arranged to be substantially parallel to the exhaust gas primary flow direction (H) and a plurality of end faces arranged substantially orthogonally to the exhaust gas primary flow direction (H).

Abstract: An exhaust gas heating arrangement includes a heating unit having a jacketed heating element having a jacket and at least one heating conductor which extends in the jacket and is surrounded by insulating material. The heating unit is spirally wound surrounding a longitudinal center axis (L), wherein a radially inner winding end region of the heating unit is offset with respect to a radially outer winding end region of the heating unit in the direction towards the longitudinal center axis (L).

Abstract: An internal combustion engine, exhaust system, exhaust gas/reactant mixing assembly unit includes an inlet area (14) of an exhaust gas flow duct (12) and a reactant release device (20) releasing reactant (R) into exhaust gas (A) flowing in the exhaust gas flow duct. The exhaust gas flow duct includes a mixing section (16) with a first mixing section segment (22) downstream of the reactant release device (20). An exhaust gas/reactant mixture flows in the first mixing section segment essentially in a main flow direction (H1)—from the reactant release device to a deflection area. A ring-shaped second mixing section segment (28) surrounds the first mixing section segment. The exhaust gas/reactant mixture flows in the second mixing section segment (28) in a second main flow direction (H2), essentially opposite the first main flow direction, from the deflection area (26) to an outlet area (34) of the exhaust gas flow duct (12).

Abstract: An exhaust gas heating unit for an exhaust system of an internal combustion engine includes a jacket heating conductor element (12) including a jacket (16) and with an electrical heating conductor (14), which extends in the jacket and is enclosed by insulating material (18). A heat transfer surface formation (20) is arranged on, and in heat transfer contact with, an outer side of the jacket. The heat transfer surface formation includes a heat transfer element with a meandering extent along the jacket heating conductor element with a plurality of heat transfer element sections (32), which pass over into one another in bent areas (30) and are arranged following one another in a longitudinal direction of the jacket heating conductor element. Each heat transfer element section in association with the jacket heating conductor element has a passage opening (34), through which the jacket heating conductor element passes.

Abstract: A process for manufacturing an exhaust system for an internal combustion engine includes the steps: a) providing at least one exhaust gas-carrying component (12, 18) for the exhaust system (10); b) applying a basic material layer (24, 26) to at least one area of a surface of at least one of the exhaust gas-carrying components (12, 16) in a high-temperature application process; and c) applying a catalytically active material layer (28, 30) to the basic material layer (24, 26) in a low-temperature application process.

Abstract: An exhaust system for an internal combustion engine, especially in a vehicle, includes an exhaust gas flow duct (14), a reactant release device (20) for the release of reactant (R) into the exhaust gas flow duct (14) and a catalytic converter device (16) downstream of the reactant release device (20). At least one part of a component surface is provided by a hydrophilic material (34) of at least one exhaust gas-carrying component (12, 22) positioned in the reactant flow path or/and defining this reactant flow path, or/and at least one part of the component surface is provided by a hydrophobic material (40) of at least one exhaust gas-carrying component (12, 18, 22) positioned in the reactant flow path.