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公开(公告)号:US20240100465A1
公开(公告)日:2024-03-28
申请号:US17769063
申请日:2020-10-13
发明人: Walter Herding , Urs Herding , Egid Koller , Dino Bethke , Stefan Hajek , Christoph Weih
CPC分类号: B01D46/71 , B01D46/0006 , B01D46/2411 , B01D46/44 , B01D46/62 , B01D2267/60 , B01D2267/70 , B01D2275/205
摘要: A filter device including at least one filter element adapted to filter a raw fluid and having a raw fluid side and a clean fluid side, the filter element having a clean fluid outlet arranged on the clean fluid side and extending in a first plane, at least one clean fluid collecting channel into which the clean fluid outlet opens; at least one compressed-air cleaning-off device adapted to generate a pressure pulse for cleaning-off foreign matter adhering to the filter element and to conduct the same through the clean fluid outlet to the filter element, wherein the compressed-air cleaning-off device is adapted to conduct the pressure pulse at least approximately along the first plane to the clean fluid outlet, wherein the compressed-air cleaning-off device comprises a compressed-air supply channel operationally coupled to a clean fluid collecting channel outlet and adapted to charge the clean fluid collecting channel with pressure pulses.
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公开(公告)号:US20200298154A1
公开(公告)日:2020-09-24
申请号:US16086180
申请日:2017-03-14
发明人: Walter Herding , Urs Herding , Martina Marx , Stefan Hajek
IPC分类号: B01D39/16
摘要: The invention relates to a filter element having inherent stability and being porous to permit flow therethrough, comprising a filter body which forms a porous sintered structure and is constructed with filter body particles which are at least in part polysulfide particles. In addition, the invention relates to a method of manufacturing such a filter element.
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公开(公告)号:US20230079987A1
公开(公告)日:2023-03-16
申请号:US17796106
申请日:2021-01-14
发明人: Walter Herding , Urs Herding , Sebastian Dandorfer , Stefan Hajek , Dino Bethke , Klaus Rabenstein , Maximilian Rösch , Thomas Sehr
IPC分类号: B01D46/00 , B01D46/84 , B01D46/48 , B01D46/42 , B33Y40/00 , B22F12/70 , B01J20/10 , B01J20/04 , B01J20/28
摘要: A method for the dry filtration of a gas flow carrying foreign objects, a filter device for cleaning off waste gas resulting from additive manufacturing technologies, comprises feeding a raw gas flow containing foreign objects into a raw gas space of a filter unit having at least one filter surface separating a raw gas side from a clean gas side; feeding oxidant to a reaction region located on the raw gas side of the filter surface downstream of the filter surface; such that foreign objects contained in material cleaned off from the filter surface and/or in the raw gas flow react with the oxidant in the reaction region to form oxide-containing foreign objects.
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公开(公告)号:US11529576B2
公开(公告)日:2022-12-20
申请号:US16086180
申请日:2017-03-14
发明人: Walter Herding , Urs Herding , Martina Marx , Stefan Hajek
摘要: The invention relates to a filter element having inherent stability and being porous to permit flow therethrough, comprising a filter body which forms a porous sintered structure and is constructed with filter body particles which are at least in part polysulfide particles. In addition, the invention relates to a method of manufacturing such a filter element.
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公开(公告)号:US20240325952A1
公开(公告)日:2024-10-03
申请号:US18027704
申请日:2021-08-04
发明人: Urs Herding , Stefan Hajek , Julian Raabe
CPC分类号: B01D46/0001 , B01D39/1676 , B01D46/2403 , B01D46/521 , B33Y10/00 , B33Y80/00 , B01D2239/0471 , B01D2239/0654 , B01D2239/10 , B01D2265/06
摘要: An inherently stable, throughflow-porous filter element for filtering foreign substances from a gas stream, comprising a filter body of plastic and having an inflow side and an opposite outflow side, wherein a surface filtration layer is formed on the inflow side, wherein the filter body has a three-dimensional support structure manufactured in an additive manufacturing process, said support structure having cavities through which gas can flow from the inflow side to the outflow side, and wherein the surface filtration layer at least partially fills the cavities of the three-dimensional support structure.
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公开(公告)号:US20240100460A1
公开(公告)日:2024-03-28
申请号:US17769066
申请日:2020-10-13
发明人: Walter Herding , Urs Herding , Egid Koller , Alexander Stauber
CPC分类号: B01D46/2403 , B01D46/522 , B01D2201/34 , B01D2239/1208
摘要: A filter element including a throughflow-porous filter body extending between a head end and a longitudinally opposite foot end, wherein a head structure is formed at the head end of the filter element, the head structure having at least one seal configured to seal the filter element with respect to a filter element holder, wherein the head structure has a sidewall extending basically in the longitudinal direction and the seal is formed on the basically longitudinally extending sidewall of the head structure of the filter element.
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公开(公告)号:US20230330581A1
公开(公告)日:2023-10-19
申请号:US17796095
申请日:2021-01-14
发明人: Walter Herding , Urs Herding , Sebastian Dandorfer , Stefan Hajek , Dino Bethke , Klaus Rabenstein , Maximilian Rösch , Thomas Sehr , Franz Weiss
CPC分类号: B01D46/0093 , B01D46/48 , B01D46/84 , B01D53/76 , B22F12/70 , B33Y40/00 , B01D2251/10 , B01D2258/02 , B22F2999/00
摘要: A method and a filter device for the dry filtration of a gas flow carrying foreign objects in a filter device for purifying waste gas produced in additive manufacturing technologies, conducting a raw gas flow containing foreign objects into a raw gas space of a filter unit having at least one filter surface separating a raw gas side from a clean gas side, feeding oxidant to a reaction region located on the raw gas side of the filter surface downstream of the filter surface, such that foreign objects contained in material cleaned off from the filter surface and/or in the raw gas flow react with the oxidant in the reaction region to form foreign objects containing oxides.
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