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公开(公告)号：US10513954B2
公开(公告)日：2019-12-24
申请号：US15245941
申请日：2016-08-24
IPC分类号： F01M13/02 , F02B33/00 , F02M35/104 , F02M35/10 , F02M25/06 , F01M13/00 , F02M26/10 , F02M26/19
摘要： Restrictors are disclosed that include a body defining a Venturi tube having a throat defining a junction of a converging inlet cone to a diverging outlet cone along a longitudinal axis thereof, and with the converging inlet cone and the diverging outlet cone each defining an inner passageway that transitions as a hyperbolic or parabolic function toward the throat.
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公开(公告)号：US10422351B2
公开(公告)日：2019-09-24
申请号：US15210190
申请日：2016-07-14
摘要： Devices for producing vacuum using the Venturi effect are disclosed that have a motive passageway converging toward a suction chamber, a discharge passageway diverging away from the suction chamber, and a suction passageway, all of which are in fluid communication with the suction chamber. The motive passageway has a single entrance, and subdivides downstream thereof into a plurality of subpassageways, one each leading to one of the plurality of motive exits, which are spaced apart from a discharge entrance of the discharge passageway to define a Venturi gap. The fletch having a plurality of ribs extending between an exterior surface of the generally conically-shaped main body thereof and an interior surface of the motive passageway is disposed in the motive passageway. The ribs divide the motive passageway into the plurality of sub-passageways, each converging fluid flow over the exterior surface thereof toward one of the plurality of motive exits.
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公开(公告)号：USD821302S1
公开(公告)日：2018-06-26
申请号：US29530829
申请日：2015-06-19
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公开(公告)号：US09915362B2
公开(公告)日：2018-03-13
申请号：US15448726
申请日：2017-03-03
申请人： Keith Hampton , David E. Fletcher , Brian M. Graichen , James H. Miller , Matthew C. Gilmer , Andrew D. Niedert
发明人： Keith Hampton , David E. Fletcher , Brian M. Graichen , James H. Miller , Matthew C. Gilmer , Andrew D. Niedert
CPC分类号： F16K15/02 , F02M25/08 , F02M25/0836 , F02M25/089 , F16K15/00 , F16K99/0021 , F16K99/0057
摘要： Fluidic diodes are disclosed that have a housing defining an inlet and an outlet and a divided fluid passageway therebetween defined by mirror image partitions generally tear-drop shaped spaced apart a first distance from one another by a constant width primary fluid pathway with the tip thereof pointed generally toward the outlet and spaced apart a second distance from an interior wall of the housing to define a constant width secondary fluid pathway. Fluid flow from the inlet to the outlet is through the primary fluid pathway with some additional flow through the secondary fluid pathways joining the primary fluid pathway proximate the outlet for flow together in the same direction, and fluid flow from the outlet to the inlet through the secondary fluid pathways exits the secondary fluid pathways into the primary fluid pathway, proximate the inlet, in a direction substantially opposite the flow in the primary fluid pathway.
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公开(公告)号：USD796006S1
公开(公告)日：2017-08-29
申请号：US29591037
申请日：2017-01-16
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公开(公告)号：USD796005S1
公开(公告)日：2017-08-29
申请号：US29591032
申请日：2017-01-16
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公开(公告)号：US09732871B2
公开(公告)日：2017-08-15
申请号：US14800027
申请日：2015-07-15
CPC分类号： F16K24/04 , B60T17/04 , B60T17/06 , F02B21/00 , F02B37/16 , F02B37/18 , F02B2037/125 , F02M35/10157 , F02M35/10229 , F16K37/0033 , Y02T10/144
摘要： A valve assembly is disclosed, and includes an evacuator and a relief valve. The evacuator includes a suction port that selectively applies a vacuum. The relief valve has an open position and a closed position, and includes an inlet, an outlet, a piston that translates within a chamber, and a pressurized chamber. The piston includes a first end and a second end. The pressurized chamber is fluidly connected to the suction port of the evacuator, and is defined in part by the first end of the piston. The piston translates within the pressurized chamber towards the open position if vacuum is applied to the pressurized chamber.
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公开(公告)号：US09669815B2
公开(公告)日：2017-06-06
申请号：US14463200
申请日：2014-08-19
CPC分类号： B60T13/46 , B60T17/02 , F02M35/10157 , F02M35/10229 , Y02T10/144
摘要： An engine system including a first flowpath between a first component and a second component where a first aspirator forms a portion of the first flowpath, and a second flowpath between the first component and the second component, where a second aspirator forms a portion of the second flowpath. A shut-off valve forms a portion of the second flowpath. The first aspirator and the second aspirator each have a suction inlet, and the suction inlet of the first aspirator is in fluid communication with the suction inlet of the second aspirator.
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9.发明授权公开(公告)号：US09534704B2
公开(公告)日：2017-01-03
申请号：US14509612
申请日：2014-10-08
申请人： Keith Hampton , David E. Fletcher , Brian M. Graichen , Rex Bravo , Matt Gilmer , Andrew Niedert
发明人： Keith Hampton , David E. Fletcher , Brian M. Graichen , Rex Bravo , Matt Gilmer , Andrew Niedert
CPC分类号： F16K47/08 , B60T17/008 , B60T17/04 , F02M35/10229 , F02M35/1244 , F02M35/1272 , F04F5/20 , F16K15/00 , F16K15/023 , F16K47/14 , Y10T137/2185
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。
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10.发明申请公开(公告)号：US20160375548A1
公开(公告)日：2016-12-29
申请号：US15189922
申请日：2016-06-22
CPC分类号： B24C3/325 , B24C11/00 , B29C37/02 , B29L2031/7506
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。
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