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    NOISE ATTENUATION IN A VENTURI DEVICE AND/OR CHECK VALVES
    9.
    发明申请
    NOISE ATTENUATION IN A VENTURI DEVICE AND/OR CHECK VALVES 审中-公开
    VENTURI设备中的噪声衰减和/或检查阀

    公开(公告)号：US20150354726A1

    公开(公告)日：2015-12-10

    申请号：US14731942

    申请日：2015-06-05

    申请人： David E. Fletcher ,  James H. Miller ,  Rex Bravo ,  Andrew D. Niedert ,  Matthew C. Gilmer ,  Keith Hampton ,  Nicole Bruder

    发明人： David E. Fletcher ,  James H. Miller ,  Rex Bravo ,  Andrew D. Niedert ,  Matthew C. Gilmer ,  Keith Hampton ,  Nicole Bruder

    IPC分类号： F16K47/04 ,  F04F5/52 ,  F16K15/02

    摘要： Venturi devices for producing vacuum are disclosed that include a housing defining a motive port, a suction port, a discharge port, a first flow passage between the motive port and the discharge port, and a second flow passage into and through the suction port and into fluid communication with the first flow passage, a first check valve incorporated into the housing and positioned to control fluid flow through the suction port, and a sound attenuating wrap about the outer surface of the housing. The Venturi devices may also include a sound attenuating member disposed in the first flow passage downstream of the intersection of the second flow passage and the first flow passage, in the portion of the second flow passage leading into the suction port, in the first check valve, or combinations thereof.

    摘要翻译： 公开了用于生产真空的文氏管装置，其包括限定动力口的壳体，吸入口，排出口，动力口和排出口之间的第一流动通道，以及进入并通过吸入口的第二流动通道 与第一流动通道流体连通;第一止回阀，其结合到壳体中并定位成控制通过吸入口的流体流动;以及围绕壳体外表面的声音衰减包裹物。 文丘里装置还可以包括声音衰减部件，该声音衰减部件设置在第二流动通道下游的第一流动通道中，在第二流动通道的通向吸入口的部分中，第一止回阀 ，或其组合。