METALLIC CERAMIC SPOOL FOR A GAS TURBINE ENGINE
    2.
    发明申请
    METALLIC CERAMIC SPOOL FOR A GAS TURBINE ENGINE 有权
    用于燃气涡轮发动机的金属陶瓷油

    公开(公告)号:US20120017598A1

    公开(公告)日:2012-01-26

    申请号:US13180275

    申请日:2011-07-11

    IPC分类号: F02C3/04 F02C7/00

    CPC分类号: F01D15/02 F01D11/18

    摘要: A method and apparatus are disclosed for a gas turbine spool design combining metallic and ceramic components in a way that controls clearances between critical components over a range of engine operating temperatures and pressures. In a first embodiment, a ceramic turbine rotor rotates just inside a ceramic shroud and separated by a small clearance gap. The ceramic rotor is connected to a metallic volute. In order to accommodate the differential rates of thermal expansion between the ceramic rotor and metallic volute, an active clearance control system is used to maintain the desired axial clearance between ceramic rotor and the ceramic shroud over the range of engine operating temperatures. In a second embodiment, a ceramic turbine rotor rotates just inside a ceramic shroud which is part of a single piece ceramic volute/shroud assembly. As temperature increases, the ceramic volute expands at approximately the same rate as ceramic shroud and tends to increase the axial clearance gap between the ceramic rotor and ceramic shroud, but only by a small amount compared to a metallic volute attached to the shroud in the same way

    摘要翻译: 公开了一种用于燃料涡轮阀芯设计的方法和装置,该设计以在发动机工作温度和压力的范围内控制关键部件之间的间隙的方式组合金属和陶瓷部件。 在第一实施例中,陶瓷涡轮机转子刚好在陶瓷罩内部旋转并由小间隙间隔开。 陶瓷转子与金属蜗壳连接。 为了适应陶瓷转子和金属蜗壳之间的不同的热膨胀率,使用主动间隙控制系统在发动机工作温度的范围内保持陶瓷转子和陶瓷套管之间所需的轴向间隙。 在第二实施例中,陶瓷涡轮转子刚好在作为单件陶瓷蜗壳/护罩组件的一部分的陶瓷罩内旋转。 随着温度升高,陶瓷蜗壳以与陶瓷护罩大致相同的速度膨胀,并且倾向于增加陶瓷转子和陶瓷护罩之间的轴向间隙,但是与附接到其上的护罩的金属蜗壳相比仅仅少量 办法

    Metallic ceramic spool for a gas turbine engine
    6.
    发明授权
    Metallic ceramic spool for a gas turbine engine 有权
    用于燃气轮机的金属陶瓷阀芯

    公开(公告)号:US08984895B2

    公开(公告)日:2015-03-24

    申请号:US13180275

    申请日:2011-07-11

    CPC分类号: F01D15/02 F01D11/18

    摘要: A method and apparatus are disclosed for a gas turbine spool design combining metallic and ceramic components in a way that controls clearances between critical components over a range of engine operating temperatures and pressures. In a first embodiment, a ceramic turbine rotor rotates just inside a ceramic shroud and separated by a small clearance gap. The ceramic rotor is connected to a metallic volute. In order to accommodate the differential rates of thermal expansion between the ceramic rotor and metallic volute, an active clearance control system is used to maintain the desired axial clearance between ceramic rotor and the ceramic shroud over the range of engine operating temperatures. In a second embodiment, a ceramic turbine rotor rotates just inside a ceramic shroud which is part of a single piece ceramic volute/shroud assembly. As temperature increases, the ceramic volute expands at approximately the same rate as ceramic shroud and tends to increase the axial clearance gap between the ceramic rotor and ceramic shroud, but only by a small amount compared to a metallic volute attached to the shroud in the same way.

    摘要翻译: 公开了一种用于燃料涡轮阀芯设计的方法和装置,该设计以在发动机工作温度和压力的范围内控制关键部件之间的间隙的方式组合金属和陶瓷部件。 在第一实施例中,陶瓷涡轮机转子刚好在陶瓷罩内部旋转并由小间隙间隔开。 陶瓷转子与金属蜗壳连接。 为了适应陶瓷转子和金属蜗壳之间的不同的热膨胀率,使用主动间隙控制系统在发动机工作温度的范围内保持陶瓷转子和陶瓷套管之间所需的轴向间隙。 在第二实施例中,陶瓷涡轮转子刚好在作为单件陶瓷蜗壳/护罩组件的一部分的陶瓷罩内旋转。 随着温度升高,陶瓷蜗壳以与陶瓷护罩大致相同的速度膨胀,并且倾向于增加陶瓷转子和陶瓷护罩之间的轴向间隙,但是与附接到其上的护罩的金属蜗壳相比仅仅少量 办法。

    Water disintegratable cleansing wipes
    10.
    发明申请
    Water disintegratable cleansing wipes 有权
    水可分解清洁抹布

    公开(公告)号:US20050118237A1

    公开(公告)日:2005-06-02

    申请号:US10724794

    申请日:2003-12-01

    摘要: Cleansing wipes comprising a film forming polymeric material and a cleansing agent stored in dry form are disclosed. The cleansing wipes are water disintegratable such that upon contact with water, the cleansing wipes release the cleansing agent and begin to dissolve/disperse into the water. Full dissolution/dispersion of the cleansing wipes occurs in about 60 seconds or less after contact with water to allow for a sufficient time for cleansing of the hands or other skin area.

    摘要翻译: 公开了包含成膜聚合物材料和以干燥形式储存的清洁剂的清洁湿巾。 清洁擦拭巾是水分解的,使得在与水接触时,清洁湿巾释放清洁剂并开始溶解/分散在水中。 清洁擦拭物的完全溶解/分散在与水接触后约60秒或更短时间内发生,以便足够的时间清洁手或其它皮肤区域。