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公开(公告)号：US09863537B2
公开(公告)日：2018-01-09
申请号：US14934650
申请日：2015-11-06
CPC分类号： F16J15/164 , B60T13/52 , B60T17/04 , F02M35/00 , F02M35/10229 , F16J15/025 , F16K15/02 , F16K15/023 , F16K15/141
摘要： Check valves are disclosed that have a housing defining an internal cavity having a first port and a second port both in fluid communication therewith, and having a first seat defined by a first elastomeric V-ring seal and a second seat. and a check valve plate within the internal cavity that is translatable, in response to pressure differentials, between a closed position against the first seat and an open position against the second seat within the internal cavity of the housing. The first elastomeric V-ring seal includes a body having an interference fit to an annular channel defined by the housing and a lip extending from the body in a direction that defines a generally V-shaped void, viewed in cross-section, opening in a direction away from and generally perpendicular to the flow through the elastomeric V-ring seal into the internal cavity.
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公开(公告)号：US20150285401A1
公开(公告)日：2015-10-08
申请号：US14678106
申请日：2015-04-03
CPC分类号： F16K47/04 , B60T17/02 , B60T17/04 , F02M35/10118 , F02M35/10229 , F02M35/10275 , F02M35/1272 , F16K15/02 , Y10T137/7754 , Y10T137/7839
摘要： Bypass check valves, suitable for bypassing a Venturi gap, are disclosed and include a housing defining an internal cavity having a first seat and a second seat, and a seal member within the internal cavity translatable between a closed position against the first seat and an open position against the second seat. The second seat defines a support structure having a middle region of a predetermine height and a downstream side having a height that is shorter than the predetermined height of the middle region. The seal member is seatable against the second seat with a downstream portion thereof a further distance from the first seat than an upstream portion thereof.
摘要翻译： 公开了适于绕过文丘里间隙的旁通止回阀，并且包括限定具有第一座和第二座的内腔的壳体，以及位于内腔内的密封构件，其可在相对于第一座椅的关闭位置和可打开的 位置反对第二个座位。 第二座椅限定了具有预定高度的中间区域和具有比中间区域的预定高度更短的高度的下游侧的支撑结构。 密封构件可抵靠第二座椅而座位，其下游部分与第一座椅的上游部分进一步距离。
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公开(公告)号：US10190455B2
公开(公告)日：2019-01-29
申请号：US15337454
申请日：2016-10-28
摘要： A device for producing vacuum using the Venturi effect, systems utilizing the device, and methods of making the device are disclosed. The device has a housing defining a Venturi gap, a motive passageway converging toward the Venturi gap and in fluid communication therewith, a discharge passageway diverging away from the Venturi gap and in fluid communication therewith, and a suction passageway in fluid communication with the Venturi gap. The suction passageway has an interior surface with a surface topography that renders the interior surface hydrophobic and has an oleophobic coating applied to the interior surface while maintaining the surface topography.
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公开(公告)号：US10107240B2
公开(公告)日：2018-10-23
申请号：US15181647
申请日：2016-06-14
申请人： David E. Fletcher , Brian M. Graichen , Matthew C. Gilmer , Andrew D. Niedert , James H. Miller , Keith Hampton
发明人： David E. Fletcher , Brian M. Graichen , Matthew C. Gilmer , Andrew D. Niedert , James H. Miller , Keith Hampton
摘要： Check valves, Venturi devices and engines that include the check valves are disclosed. The check valves define an internal cavity having a first port and a second port, a first seat and a second seat, and a translatable seal disk. The first seat is proximate the first port and has a first annular seal bead, and a second annular seal bead radially inward from the first annular seal bead. The seal disk has a first sealing portion seatable against the first annular seal bead and a second sealing portion seatable against the second annular seal bead (both of a first thickness), an intermediate portion between the first and second sealing portions of a second thickness, and a lip portion defining the outer periphery of the seal disk of a third thickness. The second thickness is greater than the first thickness, and the third thickness is less than the first thickness.
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公开(公告)号：USD802095S1
公开(公告)日：2017-11-07
申请号：US29591034
申请日：2017-01-16
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公开(公告)号：USD796634S1
公开(公告)日：2017-09-05
申请号：US29591029
申请日：2017-01-16
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公开(公告)号：US20160356250A1
公开(公告)日：2016-12-08
申请号：US15181647
申请日：2016-06-14
申请人： David E. Fletcher , Brian M. Graichen , Matthew C. Gilmer , Andrew D. Niedert , James H. Miller , Keith Hampton
发明人： David E. Fletcher , Brian M. Graichen , Matthew C. Gilmer , Andrew D. Niedert , James H. Miller , Keith Hampton
CPC分类号： F02M35/10275 , F02M35/10118 , F02M35/10163 , F02M35/10229 , Y02T10/144 , Y10T137/7754 , Y10T137/7839
摘要： Check valves, Venturi devices and engines that include the check valves are disclosed. The check valves define an internal cavity having a first port and a second port, a first seat and a second seat, and a translatable seal disk. The first seat is proximate the first port and has a first annular seal bead, and a second annular seal bead radially inward from the first annular seal bead. The seal disk has a first sealing portion seatable against the first annular seal bead and a second sealing portion seatable against the second annular seal bead (both of a first thickness), an intermediate portion between the first and second sealing portions of a second thickness, and a lip portion defining the outer periphery of the seal disk of a third thickness. The second thickness is greater than the first thickness, and the third thickness is less than the first thickness.
摘要翻译： 公开了止回阀，文丘里装置和包括止回阀的发动机。 止回阀限定具有第一端口和第二端口，第一座椅和第二座椅以及可平移密封盘的内部空腔。 第一座位靠近第一端口并且具有第一环形密封珠和从第一环形密封珠径向向内的第二环形密封珠。 密封盘具有可抵靠第一环形密封珠的第一密封部分和可抵靠第二环形密封凸缘（第一厚度）的第二密封部分，第二密封部分的第一和第二密封部分之间的中间部分， 以及限定第三厚度的密封盘的外周的唇部。 第二厚度大于第一厚度，第三厚度小于第一厚度。
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公开(公告)号：US10273978B2
公开(公告)日：2019-04-30
申请号：US14830864
申请日：2015-08-20
申请人： David E. Fletcher , Brian M. Graichen , James H. Miller , Rex Bravo , Matthew C. Gilmer , Keith Hampton , Andrew D. Niedert , Denis Vashuk
发明人： David E. Fletcher , Brian M. Graichen , James H. Miller , Rex Bravo , Matthew C. Gilmer , Keith Hampton , Andrew D. Niedert , Denis Vashuk
摘要： An evacuator for supplying vacuum to a device in a boosted engine air system is disclosed. The evacuator defines a body comprising a converging motive section, a diverging discharge section, at least one suction port, and a Venturi gap located between an outlet end of the converging motive section and an inlet end of the diverging discharge section. A lineal distance is measured between the outlet end and the inlet end. The lineal distance is decreased in length if higher suction vacuum at a specific set of operating conditions is required and the lineal distances is increased in length if higher suction flow rate at the specific set of operating conditions is required.
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9.发明授权公开(公告)号：US10024339B2
公开(公告)日：2018-07-17
申请号：US14725642
申请日：2015-05-29
申请人： David E. Fletcher , Brian M. Graichen , James H. Miller , Rex Bravo , Matthew C. Gilmer , Keith Hampton , Andrew D. Niedert
发明人： David E. Fletcher , Brian M. Graichen , James H. Miller , Rex Bravo , Matthew C. Gilmer , Keith Hampton , Andrew D. Niedert
CPC分类号： F04F5/54 , F02B37/162 , F04F5/16 , F04F5/20
摘要： Ejector assemblies and engine systems have a pressure regulator in fluid communication with an ejector. The pressure regulator receives boost pressure and selectively allows the boost pressure to pass through a valve opening therein under selected engine conditions and into the ejector as regulated boost pressure. Both the pressure regulator and the ejector each have a conduit defining a passageway that includes a Venturi gap separating the passageway into a converging section and a first diverging section that both narrow toward the Venturi gap. The pressure regulator has a piston operatively connected to a valve mechanism positioned for movement therewith to control the passage of the boost pressure through the valve opening, and the valve mechanism defines a passage therethrough that includes a gradually narrowing portion that is narrower than the valve opening.
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公开(公告)号：US20170254426A1
公开(公告)日：2017-09-07
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
IPC分类号： F16K15/02
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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