Methods for producing complex ceramic articles
    3.
    发明申请
    Methods for producing complex ceramic articles 审中-公开
    复合陶瓷制品的制造方法

    公开(公告)号:US20050156361A1

    公开(公告)日:2005-07-21

    申请号:US10761908

    申请日:2004-01-21

    摘要: Ceramic articles, particularly ceramic cores and molds for an investment casting and combinations of ceramic cores and molds are produced using temporary molds, patterns or models made by a rapid prototyping or solid free-form manufacturing process. The molds, cores and patterns are contacted with ceramic slurry, which is then solidified by lowering the temperature of the slurry. What was liquid in the original slurry is then removed by sublimation leaving behind a ceramic article having a configuration, which is defined by the temporary tooling. The ceramic article so produced may be densified by sintering, and is used in a casting process.

    摘要翻译: 陶瓷制品,特别是陶瓷芯和用于熔模铸造的模具和陶瓷芯和模具的组合使用通过快速成型或固体自由形式制造工艺制成的临时模具,图案或模型来生产。 模具,芯和图案与陶瓷浆料接触,然后通过降低浆料的温度将其固化。 然后通过升华除去原始浆料中的液体,留下具有由临时工具限定的构造的陶瓷制品。 如此制造的陶瓷制品可以通过烧结来致密化,并且用于铸造工艺中。

    Helical conformal channels for solid freeform fabrication and tooling
applications
    4.
    发明授权
    Helical conformal channels for solid freeform fabrication and tooling applications 失效
    用于固体自由形状加工和加工应用的螺旋保形通道

    公开(公告)号:US5849238A

    公开(公告)日:1998-12-15

    申请号:US883486

    申请日:1997-06-26

    CPC分类号: B29C67/0081 B29C33/04

    摘要: A method for forming a tool such as a mold includes the steps of initially selecting a cooling channel configuration for the mold. The initial selected cooling channel is evaluated utilizing a computer program. The program analyzes whether there would be local hot or cool spots in the mold with the initially selected channel. The channel is then modified based upon this evaluation. The modified channel is again subjected to the evaluation. This iterative process continues until an acceptable cooling channel configuration is achieved. The invention utilizes a generally helical cooling channel.

    摘要翻译: 用于形成诸如模具的工具的方法包括以下步骤:首先选择用于模具的冷却通道构造。 使用计算机程序评估初始选择的冷却通道。 该程序分析模具中是否存在初始选择的通道的局部热点或冷点。 然后根据此评估修改通道。 修改的通道再次进行评估。 该迭代过程持续到可接受的冷却通道配置被实现。 本发明利用了大致螺旋形的冷却通道。

    Photocatalyst protection
    5.
    发明申请
    Photocatalyst protection 失效
    光催化剂保护

    公开(公告)号:US20060127288A1

    公开(公告)日:2006-06-15

    申请号:US11011730

    申请日:2004-12-14

    IPC分类号: B01J19/12

    摘要: An air treatment system includes a filter and heating element, a plasma device, and a photocatalyst and UV light that cooperate to purify an air stream flowing through the air treatment system and protect the photocatalyst from passivating effects of certain contaminants. The air treatment system operates in two different modes. In the first mode, the air treatment system primarily draws air from and returns air to a space, and the heating element and plasma device are selectively shut off. In the second mode, the air treatment system regenerates the filter using the heating element to selectively heat the filter and release adsorbed contaminants. The plasma device is selectively turned on and chemically transforms the released contaminants into solid contaminant products. The solid contaminant products are deposited on a biased electrode of the plasma device. The UV light is turned off to ensure that the photocatalyst is inoperable during the release and transformation of the contaminants. Once deposited, the essentially immobile and inert solid contaminant products are unlikely to damage the photocatalyst.

    摘要翻译: 空气处理系统包括过滤器和加热元件,等离子体装置和光催化剂和UV光,其协作以净化流过空气处理系统的空气流并保护光催化剂免受某些污染物的钝化作用。 空气处理系统以两种不同的方式运行。 在第一模式中,空气处理系统主要从空气中抽取空气并将空气返回到空间,并且选择性地切断加热元件和等离子体装置。 在第二模式中,空气处理系统使用加热元件再生过滤器,以选择性地加热过滤器并释放吸附的污染物。 选择性地打开等离子体装置,并将释放的污染物化学转化成固体污染物。 固体污染产物沉积在等离子体装置的偏置电极上。 UV灯被关闭,以确保在污染物的释放和转化过程中光催化剂不可操作。 一旦沉积,基本上不可移动和惰性的固体污染物产物不可能损坏光催化剂。

    Freeze tolerant fuel cell power plant with a direct contact heat exchanger
    7.
    发明申请
    Freeze tolerant fuel cell power plant with a direct contact heat exchanger 失效
    具有直接接触热交换器的耐冷燃料电池发电厂

    公开(公告)号:US20050095476A1

    公开(公告)日:2005-05-05

    申请号:US10701988

    申请日:2003-11-05

    摘要: A freeze tolerant fuel cell power plant (10) includes at least one fuel cell (12), a coolant loop (18) including a freeze tolerant accumulator (22) for storing and separating a water immiscible fluid and water coolant, a direct contact heat exchanger (56) for mixing the water immiscible fluid and the water coolant within a mixing region (72) of the heat exchanger (56), a coolant pump (21) for circulating the coolant through the coolant loop (18), a radiator loop (84) for circulating the water immiscible fluid through the heat exchanger (56), and a radiator (86) for removing heat from the coolant. The plant (10) utilizes the water immiscible fluid during steady-state operation to cool the fuel cell and during shut down of the plant to displace water from the fuel cell (12) to the freeze tolerant accumulator (22).

    摘要翻译: 一种耐冻燃料电池发电厂(10)包括至少一个燃料电池(12),冷却剂回路(18),其包括用于储存和分离水不混溶流体和水冷却剂的冷冻容积(22),直接接触热 在所述热交换器(56)的混合区域(72)内混合所述水不混溶流体和所述水冷却剂的热交换器(56),用于使所述冷却剂循环通过所述冷却剂回路(18)的冷却剂泵(21) (84),用于使水不混溶流体循环通过热交换器(56),以及用于从冷却剂中除去热量的散热器(86)。 工厂(10)在稳态操作期间利用水不混溶流体来冷却燃料电池并且在关闭工厂期间将水从燃料电池(12)移动到容许冷凝器(22)。

    LIGHT DELIVERY CONTROL SYSTEM AND METHOD
    8.
    发明申请
    LIGHT DELIVERY CONTROL SYSTEM AND METHOD 有权
    光输送控制系统及方法

    公开(公告)号:US20080049432A1

    公开(公告)日:2008-02-28

    申请号:US11927731

    申请日:2007-10-30

    摘要: A method that redistributes light from a light source. The controller can redistribute light to make an irradiance profile of the light source more uniform or make the irradiance profile match a fluid flow profile. The irradiance profile may be controlled by modifying light leakage from a plurality of waveguides or changing the light-directing properties of reflectors and/or lenses.

    摘要翻译: 重新分配来自光源的光的方法。 控制器可以重新分配光,使光源的辐照度分布更均匀,或使辐照度轮廓匹配流体流动分布。 可以通过修改来自多个波导的光泄漏或改变反射器和/或透镜的导光性能来控制辐照度分布。

    Freeze tolerant fuel cell power plant with a direct contact heat exchanger
    9.
    发明申请
    Freeze tolerant fuel cell power plant with a direct contact heat exchanger 审中-公开
    具有直接接触热交换器的耐冷燃料电池发电厂

    公开(公告)号:US20060257700A1

    公开(公告)日:2006-11-16

    申请号:US11491015

    申请日:2006-07-21

    IPC分类号: H01M8/04

    摘要: A freeze tolerant fuel cell power plant (10) includes at least one fuel cell (12), a coolant loop (18) including a freeze tolerant accumulator (22) for storing and separating a water immiscible fluid and water coolant or water component, a direct contact heat exchanger (56) for mixing the water immiscible fluid and the water coolant within a mixing region (72) of the heat exchanger (56), a coolant pump (21) for circulating the coolant through the coolant loop (18), a radiator loop (84) for circulating the water immiscible fluid through the heat exchanger (56), and a radiator (86) for removing heat from the coolant. The plant (10) utilizes the water immiscible fluid during steady-state operation to cool the fuel cell and during shut down of the plant to displace water from the fuel cell (12) to the freeze tolerant accumulator (22).

    摘要翻译: 一种耐冷燃料电池发电厂(10)包括至少一个燃料电池(12),冷却剂回路(18),其包括用于储存和分离与水不混溶的流体和水冷却剂或水组分的耐冻储存器(22) 用于将热交换器(56)的混合区域(72)内的水不混溶流体和水冷却剂混合的直接接触热交换器(56),用于使冷却剂循环通过冷却剂回路(18)的冷却剂泵(21) 用于使水不混溶流体循环通过热交换器(56)的散热器回路(84)和用于从冷却剂中除去热量的散热器(86)。 工厂(10)在稳态操作期间利用水不混溶流体来冷却燃料电池并且在关闭工厂期间将水从燃料电池(12)移动到容许冷凝器(22)。