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    • 1. 发明申请
    • REDUCING FRICTION OF A VISCOUS FLUID FLOW IN A CONDUIT
    • 减少流体中粘度流体的摩擦
    • US20140360587A1
    • 2014-12-11
    • US14368065
    • 2013-02-07
    • COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEACH ORGANISATION
    • Jie WuLachlan GrahamGregory Mark ShortDean William Harris
    • F17D1/17
    • F17D1/17F15D1/008F15D1/06F17D1/16Y10T137/0391Y10T137/2076Y10T137/2082
    • A device for reducing friction of a viscous fluid flow in a conduit includes a body (10,110) positionable to define at least a segment of a flow path for the viscous fluid in or contiguous with the conduit, a cavity (40,140) in the body for retaining lubricating fluid, and at least one port (42,142) in the body for delivering lubricating fluid to the cavity. A fluid outlet arrangement (48,148) from the cavity delivers lubricating fluid to the flow path to form a downstream lubricating film about viscous fluid flowing therein. The fluid outlet arrangement comprises a substantially continuous opening or ring of close spaced openings about the flow path. The cavity comprises an array of passages in the body that includes a plurality of elongate passages (55,155) that extend about the flow path effective collectively to reduce the pressure variation and therefore velocity variation of the delivered lubricating fluid along the outlet arrangement. A corresponding method is also disclosed.
    • 用于减少导管中的粘性流体流的摩擦的装置包括主体(10,110),其可定位成限定用于粘性流体或与导管邻接的粘性流体的流路的至少一段,所述主体中的空腔(40,140) 保持润滑流体,以及至少一个端口(42,142),用于将润滑流体输送到腔体。 来自空腔的流体出口装置(48,148)将润滑流体输送到流动路径,以在其中流动的粘性流体形成下游润滑膜。 流体出口装置包括围绕流动路径的基本上连续的开口或环的密闭间隔的开口。 空腔包括主体中的通道阵列,其包括多个细长通道(55,155),所述多个细长通道围绕流动路径延伸,共同有效地降低压力变化并因此减小输送的润滑流体沿出口装置的速度变化。 还公开了相应的方法。