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    • 79. 发明公开
    • ASPIRATORS FOR PRODUCING VACUUM USING THE VENTURI EFFECT
    • ABSAUGER ZUR HERSTELLUNG EINES VAKUUMS MITHILFE DES VENTURI-EFFEKTS
    • EP3007949A1
    • 2016-04-20
    • EP14811266.7
    • 2014-06-06
    • Dayco IP Holdings, LLC
    • FLETCHER, DaveGRAICHEN, BrianHAMPTON, KeithGILMER, MattNIEDERT, Andrew
    • B60T13/52
    • B60T13/52B60T17/02Y10T137/87587
    • Aspirators are disclosed herein that include a body defining a Venturi gap between an outlet end of a converging motive section and an inlet end of a diverging discharge section and have a suction port in fluid communication with the Venturi gap. The converging motive section defines a circular-shaped motive inlet and defines an elliptical- or polygonal-shaped motive outlet, and the diverging discharge section defines an elliptical- or polygonal-shaped discharge inlet. In one embodiment, the converging motive section defines an inner passageway that transitions as a hyperbolic function from the circular-shaped motive inlet to the elliptical- or polygonal-shaped motive outlet and the elliptical- or polygonal-shaped motive outlet has an area that is less than the area of the circular-shaped motive inlet.
    • 本文公开的吸气器包括在会聚动力部分的出口端和发散排放部分的入口端之间限定文丘里间隙的主体并且具有与文氏管间隙流体连通的吸入口。 会聚动力部分限定了一个圆形的动力入口并且限定了一个椭圆形或多边形的动力出口,并且发散的排出部分限定了一个椭圆形或多边形的排出口。 在一个实施例中,会聚动力部分限定内部通道,该内部通道从圆形运动入口向椭圆形或多边形运动出口转变为双曲线函数,并且椭圆形或多边形形状的动力出口具有 小于圆形动力入口的面积。