EXHAUST-GAS FLAP DEVICE
    2.
    发明申请

    公开(公告)号:US20220010738A1

    公开(公告)日:2022-01-13

    申请号:US17374382

    申请日:2021-07-13

    Applicant: Purem GmbH

    Abstract: An exhaust-gas flap device, including for the exhaust-gas flow of an internal combustion engine, has a flap pipe and a flap plate that is supported in the interior of the flap pipe on a pivot shaft. The pivot shaft is rotatable about a pivot axis (A). The pivot shaft has first and second axial end regions and is supported rotatably on the flap pipe by respective first and second bearing assemblies. The pivot shaft is configured, in the first axial end region, for coupling to a drive element of a pivot drive. The pivot shaft is, in at least one of the axial end regions, in contact with vibration-damping material that is supported relative to the flap pipe.

    BUTTERFLY VALVE ASSEMBLY, IN PARTICULAR FOR A GAS FLOW IN A FUEL CELL SYSTEM

    公开(公告)号:US20240052930A1

    公开(公告)日:2024-02-15

    申请号:US18448592

    申请日:2023-08-11

    Applicant: Purem GmbH

    CPC classification number: F16K1/224 H01M50/317

    Abstract: A butterfly valve assembly includes a butterfly valve housing providing a gas flow and a butterfly valve adjustable in the butterfly valve housing between a closed position and an open position. The valve has a disk-shaped butterfly valve element supported on a pivot shaft rotatable about a pivot shaft axis. The shaft has a first shaft end portion for coupling to a pivot shaft drive and which, in a first bearing region, is supported on the butterfly valve housing and a second pivot shaft end portion which, in a second bearing region, is supported on the butterfly valve housing. At least one bearing region out of the first and second bearing regions includes a bearing arrangement rotatably supporting the shaft and having a bearing projection arranged on the shaft to surround the shaft axis and protruding in the direction of a counterpart bearing region on the butterfly valve housing.

    Fuel-cell exhaust arrangement
    4.
    发明公开

    公开(公告)号:US20230378501A1

    公开(公告)日:2023-11-23

    申请号:US18320515

    申请日:2023-05-19

    Applicant: Purem GmbH

    CPC classification number: H01M8/04761 H01M8/04843 H01M2250/20

    Abstract: A fuel-cell exhaust arrangement for a fuel-cell system includes an exhaust line, through which exhaust gas can flow, and a muffler through which the exhaust gas can flow. The muffler includes a housing with an inlet region for exhaust gas and with an outlet region for exhaust gas. An upstream line section of the exhaust line adjoins the inlet region for exhaust gas. A downstream line section of the exhaust line adjoins the outlet region for exhaust gas. At least one muffler chamber is formed in the housing. A base of the housing separates at least one liquid-collecting chamber from at least one muffler chamber. At least one liquid-passage opening connecting at least one muffler chamber to at least one liquid-collecting chamber for exchanging liquid is provided in the base. At least one liquid-discharging opening for discharging liquid from the at least one liquid-collecting chamber is provided on the housing.

    Coupling arrangement
    5.
    发明授权

    公开(公告)号:US11572842B2

    公开(公告)日:2023-02-07

    申请号:US17579411

    申请日:2022-01-19

    Applicant: Purem GmbH

    Abstract: A coupling arrangement is disclosed for rotationally coupling a drive element of a pivoting drive of an exhaust-gas flap for the exhaust-gas flow to a pivot shaft that is rotatable about a pivot axis. A first coupling element has a coupling region coupled to the pivot shaft for conjoint rotation about the pivot axis and a second coupling element has a coupling region coupled to the drive element for conjoint rotation about the pivot axis. A preload element acts on the first coupling element and the second coupling element substantially in a peripheral direction with respect to one another. One of the coupling elements has two rotational coupling projections which extend radially outward with respect to the coupling region of the coupling element. The other coupling element includes, so as to be assigned to each rotational coupling projection, a rotational coupling cutout which receives the corresponding rotational coupling projection.

    COUPLING ARRANGEMENT
    6.
    发明申请

    公开(公告)号:US20220228534A1

    公开(公告)日:2022-07-21

    申请号:US17579411

    申请日:2022-01-19

    Applicant: Purem GmbH

    Abstract: A coupling arrangement is disclosed for rotationally coupling a drive element of a pivoting drive of an exhaust-gas flap for the exhaust-gas flow to a pivot shaft that is rotatable about a pivot axis. A first coupling element has a coupling region coupled to the pivot shaft for conjoint rotation about the pivot axis and a second coupling element has a coupling region coupled to the drive element for conjoint rotation about the pivot axis. A preload element acts on the first coupling element and the second coupling element substantially in a peripheral direction with respect to one another. One of the coupling elements has two rotational coupling projections which extend radially outward with respect to the coupling region of the coupling element. The other coupling element includes, so as to be assigned to each rotational coupling projection, a rotational coupling cutout which receives the corresponding rotational coupling projection.

    Butterfly valve assembly, in particular for a gas flow in a fuel cell system

    公开(公告)号:US20240052931A1

    公开(公告)日:2024-02-15

    申请号:US18447690

    申请日:2023-08-10

    Applicant: Purem GmbH

    CPC classification number: F16K1/2261 F16K1/222

    Abstract: A butterfly valve assembly includes a butterfly valve housing defining a channel for accommodating a flow of gas therethrough. The assembly includes a butterfly valve adjustable in the housing between a closed position preventing the flow of gas through the channel and an open position opening up the channel for allowing passage of the flow of gas. A pivot shaft is rotatable about a pivot shaft axis and has first and second pivot shaft end portions corresponding to first and second bearing regions. A disk-shaped butterfly valve element is supported on the pivot shaft. At least one of the first and second bearing regions includes a bearing unit rotatably supporting the pivot shaft. The pivot shaft has an outer peripheral surface. At least one seal is subject to an axial load by the bearing unit and lies against the outer peripheral surface of the pivot shaft.

    Butterfly Valve Assembly, in Particular for a Gas Flow in a Fuel Cell System

    公开(公告)号:US20240052929A1

    公开(公告)日:2024-02-15

    申请号:US18447663

    申请日:2023-08-10

    Applicant: Purem GmbH

    CPC classification number: F16K1/224 F16K1/2268 H01M8/04201 H01M2250/20

    Abstract: A butterfly valve assembly includes a butterfly valve housing which provides a gas flow channel and a butterfly valve adjustable in the butterfly valve housing between a closed position and an open position for a passage of flow. The butterfly valve assembly has a disk-shaped butterfly valve element supported on a pivot shaft rotatable about a pivot shaft axis. The pivot shaft has a first pivot shaft end portion provided for coupling to a pivot shaft drive, and in a first bearing region being supported rotatably about the pivot shaft axis on the housing, and a second pivot shaft end portion, in a second bearing region being supported rotatably about the pivot shaft axis on the housing. At least one bearing region includes a bearing unit rotatably supporting the pivot shaft. A seal is supported in the bearing unit and lies against an outer peripheral surface of the pivot shaft.

Patent Agency Ranking