Exhaust gas system for a hydrogen combustion engine

    公开(公告)号:US12215614B2

    公开(公告)日:2025-02-04

    申请号:US18448557

    申请日:2023-08-11

    Applicant: Purem GmbH

    Inventor: Gerd Gaiser

    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.

    Heating unit for an exhaust-gas system of an internal combustion engine

    公开(公告)号:US11781459B2

    公开(公告)日:2023-10-10

    申请号:US18050830

    申请日:2022-10-28

    Applicant: Purem GmbH

    Inventor: Gerd Gaiser

    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.

    Heating system for a vehicle and process for heating a vehicle

    公开(公告)号:US12097752B2

    公开(公告)日:2024-09-24

    申请号:US16676723

    申请日:2019-11-07

    Applicant: Purem GmbH

    Inventor: Gerd Gaiser

    CPC classification number: B60H1/22 B01J4/008 B60N2/56 B01J2219/00074

    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.

    FUEL CELL EXHAUST-GAS SYSTEM
    4.
    发明公开

    公开(公告)号:US20240266563A1

    公开(公告)日:2024-08-08

    申请号:US18434436

    申请日:2024-02-06

    Applicant: Purem GmbH

    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.

    Fuel Cell Exhaust Gas System
    5.
    发明公开

    公开(公告)号:US20240055628A1

    公开(公告)日:2024-02-15

    申请号:US18448536

    申请日:2023-08-11

    Applicant: Purem GmbH

    Inventor: Gerd Gaiser

    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.

    HEATING UNIT FOR AN EXHAUST-GAS SYSTEM OF AN INTERNAL COMBUSTION ENGINE

    公开(公告)号:US20230136357A1

    公开(公告)日:2023-05-04

    申请号:US18050830

    申请日:2022-10-28

    Applicant: Purem GmbH

    Inventor: Gerd Gaiser

    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.

    Exhaust gas heating arrangement
    7.
    发明授权

    公开(公告)号:US11572817B2

    公开(公告)日:2023-02-07

    申请号:US17402177

    申请日:2021-08-13

    Applicant: Purem GmbH

    Inventor: Gerd Gaiser

    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).

    FUEL CELL SYSTEM AND METHOD OF OPERATING A FUEL CELL SYSTEM

    公开(公告)号:US20240405238A1

    公开(公告)日:2024-12-05

    申请号:US18678741

    申请日:2024-05-30

    Applicant: Purem GmbH

    Inventor: Gerd Gaiser

    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.

    EXHAUST GAS SYSTEM FOR A HYDROGEN COMBUSTION ENGINE

    公开(公告)号:US20240052765A1

    公开(公告)日:2024-02-15

    申请号:US18448557

    申请日:2023-08-11

    Applicant: Purem GmbH

    Inventor: Gerd Gaiser

    CPC classification number: F01N3/0205 F01N3/005 F01N3/2013 F01N3/043

    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.

    EXHAUST GAS HEATING UNIT
    10.
    发明申请

    公开(公告)号:US20220178290A1

    公开(公告)日:2022-06-09

    申请号:US17545786

    申请日:2021-12-08

    Applicant: Purem GmbH

    Inventor: Gerd Gaiser

    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).

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