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    In-line venturi
    1.
    发明授权
    In-line venturi 失效
    联线文丘里

    公开(公告)号：US5934328A

    公开(公告)日：1999-08-10

    申请号：US950175

    申请日：1997-10-14

    申请人： Wayne Ernest Conrad ,  Helmut Gerhard Conrad ,  Richard Stanley Phillips ,  Andrew Richard Henry Phillips ,  Gerald Earl Bowman ,  Michael John Preston

    发明人： Wayne Ernest Conrad ,  Helmut Gerhard Conrad ,  Richard Stanley Phillips ,  Andrew Richard Henry Phillips ,  Gerald Earl Bowman ,  Michael John Preston

    IPC分类号： G05D11/00 ,  G05D11/03

    CPC分类号： G05D11/006 ,  Y10T137/0363 ,  Y10T137/87281 ,  Y10T137/87346 ,  Y10T137/87547 ,  Y10T137/87603 ,  Y10T137/87619 ,  Y10T137/87652

    摘要： An apparatus for inserting a venturi tube having an inlet, an aspirator inlet and an outlet directly within a fluid flow stream, with the aspirator inlet not in contact with the fluid flow stream is disclosed. A plate having a first aperture leading to the venturi inlet, and a series of second apertures both supports the venturi within a conduit and divides the fluid flow stream into a first stream which flows through the venturi tube and a second stream which flows around the venturi tube. A variety of adjusting mechanisms are disclosed for varying the cross sectional area of the second apertures relative to the cross sectional area of the venturi tube. The apparatus is adapted to allow the back pressure within the venturi tube (which increases as the fluid flow rate increases) to force an increasing proportion of the flow stream to flow around the venturi tube in order to maintain a relatively constant aspiration rate within the venturi tube. The adjustment mechanisms disclosed include a second plate, similar to the first plate, which is manually rotated and a blocking ring which moves responsive to changes in rate of flow of the fluid flow stream.

    摘要翻译： 公开了一种用于将具有入口，吸气器入口和出口的文氏管直接插入流体流动流中的装置，其中吸气器入口不与流体流动流接触。 具有通向文丘里管入口的第一孔的板，并且一系列第二孔在管道内支撑文丘里管，并将流体流分流成流过文丘里管的第一流和围绕文氏管流动的第二流 管。 公开了用于改变第二孔相对于文氏管的横截面面积的横截面面积的各种调节机构。 该装置适于允许文丘里管内的背压（其随着流体流速增加而增加），以迫使流量流的增加比例围绕文丘里管流动，以便在文丘里管内保持相对恒定的吸入速率 管。 所公开的调节机构包括类似于第一板的第二板，其被手动旋转，并且阻挡环响应于流体流动流的变化速率移动。

    In-line venturi
    2.
    发明授权
    In-line venturi 失效
    联线文丘里

    公开(公告)号：US5676173A

    公开(公告)日：1997-10-14

    申请号：US455287

    申请日：1995-05-31

    申请人： Wayne Ernest Conrad ,  Helmut Gerhard Conrad ,  Richard Stanley Phillips ,  Andrew Richard Henry Phillips ,  Gerald Earl Bowman ,  Michael John Preston

    发明人： Wayne Ernest Conrad ,  Helmut Gerhard Conrad ,  Richard Stanley Phillips ,  Andrew Richard Henry Phillips ,  Gerald Earl Bowman ,  Michael John Preston

    IPC分类号： G05D11/00 ,  G05D11/03

    CPC分类号： G05D11/006 ,  Y10T137/0363 ,  Y10T137/87281 ,  Y10T137/87346 ,  Y10T137/87547 ,  Y10T137/87603 ,  Y10T137/87619 ,  Y10T137/87652

    摘要： An apparatus for inserting a venturi tube having an inlet, an aspirator inlet and an outlet directly within a fluid flow stream, with the aspirator inlet not in contact with the fluid flow stream is disclosed. A plate having a first aperture leading to the venturi inlet, and a series of second apertures both supports the venturi within a conduit and divides the fluid flow stream into a first stream which flows through the venturi tube and a second stream which flows around the venturi tube. A variety of adjusting mechanisms are disclosed for varying the cross sectional area of the second apertures relative to the cross sectional area of the venturi tube. The apparatus is adapted to allow the back pressure within the venturi tube (which increases as the fluid flow rate increases) to force an increasing proportion of the flow stream to flow around the venturi tube in order to maintain a relatively constant aspiration rate within the venturi tube. The adjustment mechanisms disclosed include a second plate, similar to the first plate, which is manually rotated and a blocking ring which moves responsive to changes in rate of flow of the fluid flow stream.

    摘要翻译： 公开了一种用于将具有入口，吸气器入口和出口的文氏管直接插入流体流动流中的装置，其中吸气器入口不与流体流动流接触。 具有通向文丘里管入口的第一孔的板，并且一系列第二孔在管道内支撑文丘里管，并将流体流分流成流过文丘里管的第一流和围绕文氏管流动的第二流 管。 公开了用于改变第二孔相对于文氏管的横截面面积的横截面面积的各种调节机构。 该装置适于允许文丘里管内的背压（其随着流体流速增加而增加），以迫使流量流的增加比例围绕文丘里管流动，以便在文氏管内保持相对恒定的吸气速率 管。 所公开的调节机构包括类似于第一板的第二板，其被手动旋转，并且阻挡环响应于流体流动流的变化速率移动。