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    • 3. 发明授权
    • Rotary vane pump
    • 旋转叶片泵
    • US4637782A
    • 1987-01-20
    • US830254
    • 1986-02-18
    • Heinz TeublerRene Schulz
    • Heinz TeublerRene Schulz
    • B62D5/07F04B49/02F04B49/10F04C2/344F04C14/26
    • F04C14/26
    • A hydraulic rotary vane pump comprises a flow control valve with a venturi throat disposed upstream thereof whereby the entire delivery flow from the pump passes through the venturi throat. The flow control valve is operable to control the amount of fluid flowing to the delivery outlet of the unit, under the influence of the pressure drop at a restrictor throttle in the form of a bore extending from the throat transversely with respect to the axis thereof. The angle between the axis of the venturi throat and the axis of the bore is between 90.degree. and 150.degree. depending on the degree to which the characteristic of the outlet flow produced is intended to drop off.
    • 液压旋转叶片泵包括具有设置在其上游的文丘里喉管的流量控制阀,由此来自泵的整个输送流通过文丘里喉管。 流量控制阀可操作以控制流体到单元输送出口的流体的量,该压力在节流阀的压降的作用下以从喉部横向相对于其轴线延伸的孔的形式。 文丘里喉管的轴线和孔的轴线之间的角度在90°和150°之间,这取决于所产生的出口流的特性是要脱落的程度。