METHODS FOR POST-MOLD PROCESSING A VENTURI DEVICE OR CHECK VALVE
    27.
    发明申请
    METHODS FOR POST-MOLD PROCESSING A VENTURI DEVICE OR CHECK VALVE 审中-公开
    用于后处理VENTURI设备或检查阀的方法

    公开(公告)号:US20160375548A1

    公开(公告)日:2016-12-29

    申请号:US15189922

    申请日:2016-06-22

    IPC分类号: B24C3/32 B29C37/02 B24C11/00

    摘要: Methods for post-mold processing a Venturi device for generating vacuum are disclosed that improve the evacuation time thereof. The methods include providing a molded Venturi device having a body defining a Venturi gap between an outlet end of a converging motive passageway and an inlet end of a diverging discharge passageway, where the outlet end defines a motive exit having flash extending radially inward and the inlet end defines a discharge inlet having flash extending radially inward. Then, the method includes positioning the molded Venturi device with an inlet end of the converging motive passageway facing a blasting nozzle or with an outlet end of a diverging discharge passageway facing a blasting nozzle, and propelling blasting media into the motive inlet or the discharge exit of the Venturi device to remove the flash in the motive exit and in the discharge inlet, or vice versa.

    摘要翻译: 公开了用于产生真空的文丘里装置的模具后处理方法,其改善了其排空时间。 所述方法包括提供一种模制的文丘里装置,其具有在会聚动力通道的出口端和发散的排放通道的入口端之间限定文丘里间隙的主体,其中出口端限定具有径向向内延伸的闪电的动力出口, 端部限定具有径向向内延伸的闪电的排出口。 然后,该方法包括将模制的文丘里装置定位成具有朝向喷射喷嘴的会聚动力通道的入口端,或者与朝向喷射喷嘴的发散排放通道的出口端对准,并将喷射介质推进到动力入口或排出口 的文丘里装置去除动力出口和排放口中的闪光,反之亦然。

    Methods for post-mold processing a Venturi device or check valve

    公开(公告)号:US10239187B2

    公开(公告)日:2019-03-26

    申请号:US15189922

    申请日:2016-06-22

    摘要: Methods for post-mold processing a Venturi device for generating vacuum are disclosed that improve the evacuation time thereof. The methods include providing a molded Venturi device having a body defining a Venturi gap between an outlet end of a converging motive passageway and an inlet end of a diverging discharge passageway, where the outlet end defines a motive exit having flash extending radially inward and the inlet end defines a discharge inlet having flash extending radially inward. Then, the method includes positioning the molded Venturi device with an inlet end of the converging motive passageway facing a blasting nozzle or with an outlet end of a diverging discharge passageway facing a blasting nozzle, and propelling blasting media into the motive inlet or the discharge exit of the Venturi device to remove the flash in the motive exit and in the discharge inlet, or vice versa.

    Noise attenuation in a check valve unit or apparatus for producing vacuum
    30.
    发明授权
    Noise attenuation in a check valve unit or apparatus for producing vacuum 有权
    用于产生真空的止回阀单元或设备中的噪声衰减

    公开(公告)号:US09534704B2

    公开(公告)日:2017-01-03

    申请号:US14509612

    申请日:2014-10-08

    摘要: Check valve units having one or more sound attenuating members are disclosed. A check valve unit includes a housing defining an inlet port, an outlet port, and a chamber in fluid communication therewith thereby defining a flow path from the inlet port through the chamber to the outlet port. The chamber includes first and second valve seats and has a sealing member disposed therein that is moveable from a position seated on the first valve seat to a position seated on the second valve seat. A sound attenuating member is disposed in the flow path downstream of the chamber, within the chamber, or both. In another embodiment, the check valve unit includes a Venturi portion in fluid communication with the chamber. The Venturi portion has a fluid junction with the flow path downstream of the chamber or forms the discharge section of the Venturi portion thereby defining the outlet port.

    摘要翻译: 公开了具有一个或多个声音衰减构件的止回阀单元。 止回阀单元包括限定入口,出口和与其流体连通的室的壳体,从而限定从入口通过室到出口的流动路径。 该腔室包括第一和第二阀座,并且具有设置在其中的密封构件,该密封构件能够从坐在第一阀座上的位置移动到坐在第二阀座上的位置。 声音衰减构件设置在腔室的下游,腔室内或两者中的流动路径中。 在另一个实施例中,止回阀单元包括与腔室流体连通的文氏管部分。 文丘里部分具有与腔室下游的流动路径的流体连接点或形成文丘里管部分的排出部分,从而限定出口端口。