Flank superabrasive machining
    2.
    发明授权
    Flank superabrasive machining 有权
    侧面超级磨料加工

    公开(公告)号:US07101263B2

    公开(公告)日:2006-09-05

    申请号:US10289493

    申请日:2002-11-06

    IPC分类号: B24B1/00

    CPC分类号: B24D7/18 B24B19/14

    摘要: The present invention relates to a quill to be used to superabrasively machine complex shapes, such as airfoil shapes, into a substrate. The quill has a shaft portion, an enlarged head portion adjacent the shaft portion, and a tapered grinding portion adjacent the enlarged head portion. The tapered grinding portion has a layer of grit material selected from the group consisting of diamonds and cubic boron nitride thereon. In a preferred embodiment, the quill is a vitrified or plated cubic boron nitride quill on the grinding portion. A method of using the tool is also disclosed.

    摘要翻译: 本发明涉及一种用于将诸如翼型形状的复杂形状超级加工到基材中的套筒。 针筒具有轴部,与轴部相邻的扩大头部,以及与扩大头部相邻的锥形磨削部。 锥形研磨部分具有选自由金刚石和立方氮化硼组成的组中的砂砾材料层。 在优选实施例中,套筒是磨削部分上的玻璃化或电镀立方氮化硼针筒。 还公开了使用该工具的方法。

    Gas turbine noise suppressor
    5.
    发明授权
    Gas turbine noise suppressor 失效
    燃气轮机噪声抑制器

    公开(公告)号:US4284170A

    公开(公告)日:1981-08-18

    申请号:US87188

    申请日:1979-10-22

    IPC分类号: F02K1/46 F02K1/00

    CPC分类号: F02K1/46

    摘要: Noise generated in a coannular airstream where there are concentric spaced pipes discharging the flow and the outer pipe extends beyond the inner pipe as in the tail pipe configuration of a fan-jet engine is dissipated by discreetly locating tabs extending internally at the discharge end of the inner pipe. This serves to destroy the coherence of the unsteady pressure field occasioned when the coannular flow streams comingle.

    摘要翻译: 在具有排出流体和外管的同心间隔的管道的空气流中产生的噪声延伸超过内管,如在风扇喷气发动机的尾管构造中那样通过在位于 内管。 这有助于破坏当球囊流动流动时发生的不稳定压力场的一致性。

    Device to provide flow inversion in a turbofan exhaust tailpipe to
achieve low jet noise
    6.
    发明授权
    Device to provide flow inversion in a turbofan exhaust tailpipe to achieve low jet noise 失效
    在涡轮风扇排气尾管中提供流量反转的装置,以实现低喷射噪声

    公开(公告)号:US4135363A

    公开(公告)日:1979-01-23

    申请号:US763199

    申请日:1977-01-27

    申请人: Allan B. Packman

    发明人: Allan B. Packman

    IPC分类号: F02K1/38 F02K3/02

    CPC分类号: F02K1/386

    摘要: Jet noise generation occasioned from the gaseous streams in the coaxial streams of a turbofan engine when they as well as the ambient stream encounter is reduced by designing the engine so that the value of the true velocity of the outer stream is substantially higher than the value of the true velocity of the inner stream. It is contemplated that for a turbofan engine the fan stream and primary or engine core streams are inverted so that the higher velocity stream would be in the outer coaxial passage immediately upstream of the point where the streams discharge to ambient. A modified conventional lobe mixer is utilized to invert flow streams.

    摘要翻译: 当涡轮风扇发动机的同轴流中的气态物流以及周围环流遇到时,由于设计发动机而使外流的真实速度的值显着地高于 内流的真实速度。 可以想到,对于涡轮风扇发动机,风扇流和主要或发动机核心流被反转,使得较高速度的气流将在流体排放到环境的点的上游的外部同轴通道中。 改进的常规叶片混合器用于逆流流。

    Coolant nozzle
    7.
    发明授权
    Coolant nozzle 有权
    冷却液喷嘴

    公开(公告)号:US06991523B2

    公开(公告)日:2006-01-31

    申请号:US10655176

    申请日:2003-09-04

    IPC分类号: B24B1/00

    CPC分类号: B24B1/00 B23Q11/10 Y10T408/44

    摘要: A coolant nozzle is used on a machine tool having a rotating bit of convoluted longitudinal profile for cutting a number of slots in a disk. The nozzle includes at least one coolant inlet and at least one coolant outlet. The coolant outlet has a convoluted section and is positioned to direct a coolant stream tangentially at the bit in a direction of rotation of the bit. Internal surface portions of the nozzle define one or more passageways between the inlet and the outlet(s).

    摘要翻译: 冷却剂喷嘴用于具有卷绕的纵向轮廓的旋转钻头的机床上,用于切割盘中的多个狭槽。 喷嘴包括至少一个冷却剂入口和至少一个冷却剂出口。 冷却剂出口具有回旋部分并且被定位成沿着钻头的旋转方向在切屑处引导冷却剂流。 喷嘴的内表面部分在入口和出口之间限定一个或多个通道。