Manifolds for delivering fluids having a desired mass flow profile and methods for designing the same
    4.
    发明授权
    Manifolds for delivering fluids having a desired mass flow profile and methods for designing the same 有权
    用于输送具有所需质量流量分布的流体的歧管及其设计方法

    公开(公告)号:US07698116B2

    公开(公告)日:2010-04-13

    申请号:US11419675

    申请日:2006-05-22

    摘要: Manifolds are designed to deliver fluid through multiple orifices of the manifold such that for a given inlet fluid pressure the fluid being output from the multiple orifices has a desired mass flow profile. The desired mass flow profile includes a desired mass flow rate and a desired direction and distribution of flow in three-dimensional space. The manifold is first modeled as a two-dimensional representation to determine manifold parameters necessary to achieve the desired mass flow profile within the two dimensions. Then, the manifold is modeled as a three-dimensional representation based on the parameters previously determined for the two-dimensional representation to determine manifold parameters of the third dimension that are necessary to achieve the desired mass flow profile within the three dimensions.

    摘要翻译: 歧管被设计成通过歧管的多个孔口输送流体,使得对于给定的入口流体压力,从多个孔口输出的流体具​​有期望的质量流量分布。 期望的质量流量分布包括期望的质量流率和在三维空间中的期望的流动方向和分布。 歧管首先被建模为二维表示,以确定在两维内达到所需质量流量分布所必需的歧管参数。 然后,基于先前为二维表示确定的参数,将歧管建模为三维表示,以确定在三维内实现期望的质量流量分布所必需的第三维度的歧管参数。

    Nonwoven web forming apparatus
    8.
    发明授权
    Nonwoven web forming apparatus 失效
    无纺布成网设备

    公开(公告)号:US07690902B2

    公开(公告)日:2010-04-06

    申请号:US11763505

    申请日:2007-06-15

    IPC分类号: B29B9/06 D01D5/08 D04H3/00

    摘要: Melt blown or spun bond nonwoven webs are formed by flowing fiber-forming material through a die cavity having a substantially uniform residence time and then through a plurality of orifices to form filaments, using air or other fluid to attenuate the filaments into fibers and collecting the attenuated fibers as a nonwoven web. Each die orifice receives a fiber-forming material stream having a similar thermal history. The physical or chemical properties of the nonwoven web fibers such as their average molecular weight and polydispersity can be made more uniform. Wide nonwoven webs can be formed by arranging a plurality of such die cavities in a side-by-side relationship. Thicker or multilayered nonwoven webs can be formed by arranging a plurality of such die cavities atop one another.

    摘要翻译: 熔融吹制或纺粘非织造纤维网通过使纤维形成材料流过具有基本上均匀的停留时间的模腔而形成,然后通过多个孔以形成长丝,使用空气或其它流体将长丝衰减成纤维并收集 减弱的纤维作为非织造纤维网。 每个模头孔接收具有相似热历史的纤维形成材料流。 可以使非织造纤维网的物理或化学性质如其平均分子量和多分散性更均匀。 可以通过以并排关系布置多个这样的模腔来形成宽的非织造纤维网。 可以通过将多个这样的模腔布置在彼此上方而形成较厚的或多层的非织造纤维网。

    Meltblowing apparatus employing planetary gear metering pump
    9.
    发明授权
    Meltblowing apparatus employing planetary gear metering pump 失效
    采用行星齿轮计量泵的熔喷设备

    公开(公告)号:US06824733B2

    公开(公告)日:2004-11-30

    申请号:US10177419

    申请日:2002-06-20

    IPC分类号: D01D5088

    CPC分类号: D01D5/0985 D01D4/025

    摘要: Melt blown nonwoven webs are formed by supplying fiber-forming material to a planetary gear metering pump having a plurality of outlets, flowing fiber-forming material from the pump outlets through a plurality of inlets in one or more die cavities, and meltblowing the fiber-forming material. Each die cavity inlet receives a fiber-forming material stream having a similar thermal history. The physical or chemical properties of the nonwoven web fibers such as their average molecular weight and polydispersity can be made more uniform. Wide nonwoven webs can be formed by arranging a plurality of such die cavities in a side-by-side relationship. Thicker or multilayered nonwoven webs can be formed by arranging a plurality of such die cavities atop one another.

    摘要翻译: 熔喷非织造纤维网是通过向具有多个出口的行星齿轮计量泵提供纤维形成材料而形成的,所述行星齿轮计量泵通过在一个或多个模腔中的多个入口从泵出口流动纤维形成材料, 成型材料。 每个模腔入口接收具有相似热历史的纤维形成材料流。 可以使非织造纤维网的物理或化学性质如其平均分子量和多分散性更均匀。 可以通过以并排关系布置多个这样的模腔来形成宽的非织造纤维网。 可以通过将多个这样的模腔布置在彼此上方而形成较厚的或多层的非织造纤维网。