Powder feeder apparatus
    12.
    发明授权
    Powder feeder apparatus 失效
    送粉装置

    公开(公告)号:US5209607A

    公开(公告)日:1993-05-11

    申请号:US397988

    申请日:1989-08-24

    IPC分类号: B01J4/02 B01J8/00

    摘要: This invention relates to an apparatus and process for feeding powder or dry solids catalyst into a flowing liquid stream. More particularly, the invention includes an apparatus which includes a novel purging device and means for isolating a metering means from a liquid stream, and process for injecting finely divided flowable powder or catalyst into a flowing liquid stream, which in turn is fed into a reactor utilized for the production of polypropylene or polyolefins.

    摘要翻译: 本发明涉及一种用于将粉末或干固体催化剂进料到流动液体流中的装置和方法。 更具体地,本发明包括一种装置,其包括新颖的清洗装置和用于将计量装置与液体流隔离的装置,以及用于将细分散的可流动粉末或催化剂注入到流动的液体流中的方法,该流动液体流又被送入反应器 用于生产聚丙烯或聚烯烃。

    Encapsulated bulk absorber acoustic treatments for aircraft engine
application
    14.
    发明授权
    Encapsulated bulk absorber acoustic treatments for aircraft engine application 失效
    用于飞机发动机应用的密封散装吸声器声学处理

    公开(公告)号:US4441578A

    公开(公告)日:1984-04-10

    申请号:US399498

    申请日:1982-07-19

    申请人: Philip M. Rose

    发明人: Philip M. Rose

    IPC分类号: F02C7/045 G10K11/172 F01N1/24

    CPC分类号: G10K11/172 F02C7/045

    摘要: A sandwich type acoustical absorbing panel for use adjacent to high speed gas flow areas in and around the engines of high speed aircraft. The panel in one embodiment comprises an imperforate facing sheet including having upright side and end walls, the inner volume of the panel and upright side and end walls are divided by means of partitions into a plurality of individual cavities or cells, each of the plurality of individual cavities or cells are filled with a bulk absorber material having many small torturous air passages, such as, open celled foam, fiberglass, felts or the like, the bulk absorber filling each cavity or cell is encapsulated in a membrane of thin limp material for preventing bulk absorber contamination and a perforated sheet overlay for attaching to the side, end walls and partitions for containing the bulk absorber within the cavities or cells.

    摘要翻译: 一种夹层式吸声板,用于与高速飞机发动机及其周围的高速气流区域相邻。 在一个实施例中的面板包括无孔的面层片,其包括直立侧壁和端壁,面板的内部容积和直立侧壁和端壁通过隔板分成多个单独的空腔或单元, 单个空腔或细胞填充有具有许多小曲折空气通道的散装吸收材料,例如开孔泡沫,玻璃纤维,毡毡等,填充每个空腔或细胞的大体吸收体被包封在薄的薄片材料的膜中 防止大量的吸收剂污染物和用于附接到侧壁,端壁和隔板的穿孔板覆盖物,用于在体腔或细胞内容纳散装吸收体。