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公开(公告)号:US10923741B2
公开(公告)日:2021-02-16
申请号:US16418355
申请日:2019-05-21
发明人: Satoshi Kawabe
IPC分类号: H01M8/026 , H01M8/0228
摘要: A fuel cell separator includes a separator body configured to be arranged between membrane electrode assemblies and includes recesses and projections formed in the separator body. The projections include first projections that are configured to face an electrode layer of the membrane electrode assembly. A thin film is arranged on a surface of each of the first projections. The recesses include first recesses that open in a protruding direction of the first projections. Each of the first recesses is configured to form a passage through which oxidizing gas or fuel gas is supplied to the electrode layer. A portion of each of the thin films that is in contact with the electrode layer of the membrane electrode assembly includes a groove, the groove connecting to at least one of the passages located on opposite sides of one of the first projections that includes the thin film.
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公开(公告)号:US11073055B2
公开(公告)日:2021-07-27
申请号:US16225981
申请日:2018-12-19
发明人: Makoto Sazawa , Satoshi Kawabe
摘要: An electrostatic oil mist separator for an internal combustion engine includes a positive plate and a negative plate facing each other, a filter arranged between the positive plate and the negative plate, a case having an inlet and an outlet and houses the positive plate, the negative plate, and the filter, and a voltage generator. The electrostatic oil mist separator is configured to cause blow-by gas to flow from the inlet to the outlet between the positive plate and the negative plate in a state in which the voltage generator is applying a voltage across the positive plate and the negative plate, thereby separating oil mist from the blow-by gas by electrostatic adsorption force. At least one of the positive plate and the negative plate is made of a metal plate and includes a plurality of protrusions that are formed by cutting and raising the metal plate.
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公开(公告)号:US11165071B2
公开(公告)日:2021-11-02
申请号:US16750491
申请日:2020-01-23
发明人: Satoshi Kawabe
IPC分类号: H01M8/026 , H01M8/0206 , H01M8/0256 , H01M8/1006
摘要: A separator for a fuel cell includes a metal separator base, crest sections, and a trough sections. Regions surrounded by the respective trough sections and a corresponding electrode layer each constitute a passage that supplies oxidation gas or fuel gas to the electrode layer. A first thin film is placed over the entire surfaces of the crest sections and the trough sections that face the corresponding electrode layer. The first thin film has conductivity and a corrosion resistance higher than that of the separator base. A second thin film having conductivity is placed at least on each of the parts of the first thin film that are placed on top surfaces of the crest sections. The second thin film on the top surface of each crest section has a groove. At least one end of the groove is connected to the passage.
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公开(公告)号:US11133513B2
公开(公告)日:2021-09-28
申请号:US16750467
申请日:2020-01-23
发明人: Satoshi Kawabe
IPC分类号: H01M8/0256 , H01M8/1006 , H01M8/026
摘要: A separator for a fuel cell includes a separator base, crest sections, and trough sections. Regions surrounded by the respective trough sections and a corresponding electrode layer each constitute a passage that supplies oxidation gas or fuel gas to the electrode layer. A thin film having conductivity is placed at least on the top surface of each crest section. The thin film on the top surface of each crest section has a groove that connects the passages on the opposite sides of the crest section to each other. Each trough section has a flow resistance increasing portion on the downstream side of the groove in the flow direction of the gas. The flow resistance increasing portion reduces the cross-sectional flow area of the passage such that the cross-sectional flow area at the flow resistance increasing portion is smaller than that at the section to which the groove is connected.
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