Multi-layered thermal insulating piston cap
    1.
    发明授权
    Multi-layered thermal insulating piston cap 失效
    多层绝热活塞帽

    公开(公告)号:US4863807A

    公开(公告)日:1989-09-05

    申请号:US248315

    申请日:1988-09-19

    Abstract: A multi-layered insulating piston cap for cast metal pistons having an insulating, perforated metal sheet layer. A piston cap is provided having a top sheet continuous layer made of a heat and corrosion resistant metal for protecting the piston cap, a second layer made of heat and corrosion resistant metal sheet having a plurality of spaced apart perforations for providing trapped air spaces, a third layer made of a heat and corrosion resistant metal foil for sealing the perforations, and a fourth layer or porous, heat and corrosion resistant metal for anchoring the piston cap to the piston. One coined geometry can be used when blanking various sized cross-sections of piston cap.

    Abstract translation: 一种用于铸造金属活塞的多层绝缘活塞帽,其具有绝缘的穿孔金属片层。 提供一种活塞盖,其具有由用于保护活塞盖的耐热和耐腐蚀金属制成的顶片连续层,由耐热和耐腐蚀的金属板制成的第二层,其具有用于提供被困空气空间的多个间隔开的穿孔, 由用于密封穿孔的耐热和耐腐蚀的金属箔制成的第三层,以及用于将活塞盖固定到活塞的第四层或多孔,耐热和耐腐蚀的金属。 当冲压活塞盖的各种尺寸的横截面时,可以使用一个压模几何形状。

    Self venting septums for use in a liquid filtration system
    2.
    发明授权
    Self venting septums for use in a liquid filtration system 失效
    用于液体过滤系统的自排气隔膜

    公开(公告)号:US5632891A

    公开(公告)日:1997-05-27

    申请号:US559228

    申请日:1995-11-17

    CPC classification number: B01D36/001 B01D29/15

    Abstract: A septum adapted to be pre-coated with a filter and/or chemical treatment composition is formed of a tubular core member having a top and a bottom end. A plurality of top openings is provided in the core member immediately adjacent to the top end. A short actual length portion of the tubular core is impervious adjacent to the plurality of the top opening. The balance, extending for the major portion of the length of the tubular core is perforated. A multi-layer filter screen is positioned about the exterior of the tubular core. A tubular air release shield is positioned on the filter screen having a length to substantially extend from the tubular core top to cover the top openings in the tubular core and the tubular core impervious portion. A vent opening is provided in the air release shield. An end fitting closes the top end of the tubular core. Air entrapped within the septum is vented through the tubular core top openings and the air release shield to prevent air entrapment within the septum and to augment more effective precoating of the septum.

    Abstract translation: 适于用过滤器和/或化学处理组合物预涂布的隔膜由具有顶端和底端的管状芯构件形成。 多个顶部开口设置在与顶端紧邻的芯构件中。 管状芯的实际长度短的部分在多个顶部开口附近是不透水的。 延伸管状芯的长度的主要部分的平衡是穿孔的。 多层过滤网围绕管芯的外部定位。 管状空气释放屏蔽件定位在过滤网上,其长度基本上从管状芯顶部延伸以覆盖管状芯体中的顶部开口和管状芯部不可渗透部分。 排气口设置在空气释放屏蔽中。 端部配件封闭管状芯的顶端。 通过管状芯顶部开口和空气释放屏蔽件将隔膜内的空气排出,以防止隔膜内的空气滞留,并增加更有效的隔膜预涂层。

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