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    • 2. 发明申请
    • CUTTING ASSEMBLY FOR A CHOPPER PUMP
    • 为CHOPPER泵切割组件
    • WO2017189741A1
    • 2017-11-02
    • PCT/US2017/029664
    • 2017-04-26
    • PENTAIR FLOW TECHNOLOGIES, LLC
    • BEVINGTON, Jack
    • F04D7/04F04D29/22
    • Embodiments of the invention provide a cutting assembly for a chopper pump. The cutting assembly includes a cutting insert having a cutting blade extending radially therefrom, and an impeller having; a central hub, a plurality of vane¾ and an insert surface. The insert surface defines an axial recess that is dimensioned to receive the cutting insert therein. The cutting assembly further includes a cutting plate having a plate hub with a cutting extension protruding radially inward therefrom. Rotation of the impeller rotates the cutting blade past the cutting extension.
    • 本发明的实施例提供了用于切碎机泵的切割组件。 切割组件包括具有从其径向延伸的切割刀片的切割插入件,以及叶轮, 一个中心毂,多个叶片和压裂34; 和一个插入表面。 该插入表面限定了一个轴向凹槽,该轴向凹槽的尺寸被设计成将切削插入件接收在其中。 切割组件还包括具有板毂的切割板,该板毂具有从其径向向内突出的切割延伸部。 叶轮的旋转使切割刀片经过切割延伸部。
    • 8. 发明申请
    • VARIABLE FLOW NOZZLE SYSTEM AND METHOD
    • 可变流量喷嘴系统和方法
    • WO2016115123A1
    • 2016-07-21
    • PCT/US2016/013032
    • 2016-01-12
    • PENTAIR FLOW TECHNOLOGIES, LLC
    • RAGHUNANDAN, VeenaSINGH, ArminderWADDELOW, Simon
    • B05B1/30
    • B05B1/3006B05B1/3013
    • Embodiments of the invention provide a variable flow nozzle assembly capable of flowing a fluid within a range of flow rates in response to a variable upstream pressure. A spray tip defines a chamber and a flow port in communication with the chamber. A pre- orifice defines a flow path in communication with the chamber and a metering portion along the flow path. A spool valve defines a spool rod portion positioned within the metering portion and configured to be moveable in response to an applied upstream fluid pressure between a minimum and a maximum flow position. A biasing mechanism biases the spool valve toward the minimum flow position. An opening between the metering and spool rod portions allows for fluid flow through the flow path to be greater when the spool valve is in the maximum flow position than when in the minimum flow position.
    • 本发明的实施例提供了一种可变流量喷嘴组件,其能够响应于可变上游压力在流量范围内流动流体。 喷嘴限定了与腔室连通的腔室和流动口。 预喷嘴限定与腔室连通的流动路径和沿着流动路径的计量部分。 滑阀限定位于计量部分内的卷轴杆部分,并且构造成响应于在最小和最大流动位置之间施加的上游流体压力而可移动。 偏压机构将滑阀偏向最小流动位置。 当滑阀处于最大流动位置时,计量阀芯和阀芯杆部分之间的开口允许通过流路的流体流量大于当处于最小流量位置时的流量。