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1.发明公开
公开(公告)号：EP3148852A4
公开(公告)日：2018-01-10
申请号：EP15799642
申请日：2015-05-29
发明人： FLETCHER DAVID E , GRAICHEN BRIAN M , MILLER JAMES H , BRAVO REX , GILMER MATT , HAMPTON KEITH , NIEDERT ANDREW
CPC分类号： F04F5/54 , F02B2037/162 , F04F5/16 , F04F5/20
摘要： Ejector assemblies and engine systems including the same are disclosed herein. The ejector assemblies include 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：EP3152417A4
公开(公告)日：2018-05-23
申请号：EP15803463
申请日：2015-06-05
发明人： FLETCHER DAVID E , MILLER JAMES H , BRAVO REX , NIEDERT ANDREW , GILMER MATT , HAMPTON KEITH , BRUDER NICOLE
CPC分类号： F16K47/04 , F04B53/001 , F04F5/20 , F04F5/52 , F04F5/54 , F05C2253/14 , F16K15/02 , Y10T137/7904
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.
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公开(公告)号：EP3186123A4
公开(公告)日：2018-02-28
申请号：EP15835849
申请日：2015-08-20
发明人： FLETCHER DAVID E , GRAICHEN BRIAN M , MILLER JAMES H , BRAVO REX , GILMER MATTHEW C , HAMPTON KEITH , NIEDERT ANDREW D , VASHUK DENIS
IPC分类号： B60T13/52
CPC分类号： F02M35/10157 , F02M35/10229 , F04F5/00 , Y02T10/144
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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公开(公告)号：EP3242995A4
公开(公告)日：2018-07-04
申请号：EP16735252
申请日：2016-01-04
发明人： FLETCHER DAVID E , GRAICHEN BRIAN M , VASHUK DENIS , BRAVO REX
CPC分类号： F02M35/10229 , F01N1/082 , F01N1/085 , F01N1/10 , F01N3/22 , F01N13/007 , F02M35/1211 , F02M35/1272 , F02M35/1277
摘要： Noise attenuating members for use in noise attenuating units for engine systems are disclosed that include a core, having an interior surface defining a hollow inner cavity and a plurality of radial openings, and a porous material disposed about an exterior surface of the core. The porous material may be a strip which is engaged with the exterior of the core and wrapped around the core to form a plurality of layers of porous material. A noise attenuating unit is disclosed to include a housing, having an internal cavity, first port, and second port, and an attenuating member disposed within the internal cavity. A method of making a noise attenuating member is disclosed that includes providing a core having an hollow cavity and radial openings, providing a strip of porous material, and wrapping the strip of porous material about the core to form one or more layers.
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公开(公告)号：EP3090169A4
公开(公告)日：2017-08-02
申请号：EP14869909
申请日：2014-12-09
发明人： HAMPTON KEITH , FLETCHER DAVID , GRAICHEN BRIAN M , BRAVO REX
IPC分类号： F02M35/12 , B60T13/12 , F02M25/06 , F02M35/10 , F02M35/14 , F02M37/00 , F16L55/027 , F16L55/033
CPC分类号： F02M35/1244 , B60T17/008 , B60T17/043 , F02M25/06 , F02M35/10118 , F02M35/10229 , F02M35/1211 , F02M35/1272 , F02M37/0041 , F16L55/02745 , F16L55/0336
摘要： Noise attenuation units are disclosed that are connectable in a system as part of a fluid flow path. Such units include a housing defining an internal cavity and having a first port and a second port each connectable to a fluid flow path and in fluid communication with one another through the internal cavity, and a noise attenuating member seated in the internal cavity of the housing within the flow of the fluid communication between the first port and the second port. The noise attenuating member enables the fluid communication between the first port and the second port to flow through the noise attenuating member.
摘要翻译： 公开了可作为流体流动路径的一部分连接到系统中的噪声衰减单元。 这种单元包括限定内腔并且具有第一端口和第二端口的壳体，所述第一端口和第二端口均可连接到流体流动路径并且通过内腔彼此流体连通;以及噪声衰减构件，所述噪声衰减构件坐落在壳体的内腔中 在第一端口与第二端口之间的流体连通的流动内。 噪声衰减部件使得第一端口和第二端口之间的流体连通能够流过噪声衰减部件。
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公开(公告)号：EP3094898A4
公开(公告)日：2017-12-06
申请号：EP14870316
申请日：2014-12-10
发明人： HAMPTON KEITH , FLETCHER DAVID , GRAICHEN BRIAN M , BRAVO REX , MILLER JAMES H , GILMER MATT , NIEDERT ANDREW
摘要： An aspirator for creating vacuum is disclosed that includes a housing defining a fluid passageway with a first tapering portion and a second tapering portion. Each tapering portion has a larger internal opening and a smaller internal opening, the smaller openings facing one another. The aspirator includes a gate positioned between and in fluid communication with the first and second tapering portions, the gate having a first Venturi tube with a Venturi opening creating vacuum when fluid flows in a direction and a second Venturi tube with a Venturi opening that creates vacuum when fluid flows in the opposite direction. The Venturi openings are in fluid communication with a suction port, and the first and second Venturi tubes may provide different mass flow rates through the aspirator. An engine system having an aspirator with a gate having a first bore and a second bore and an actuator is also disclosed.
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7.发明公开
公开(公告)号：EP3097331A4
公开(公告)日：2017-08-09
申请号：EP15737914
申请日：2015-01-20
发明人： FLETCHER DAVID , MILLER JAMES H , BRAVO REX , NIEDERT ANDREW , GILMER MATT
CPC分类号： F16K15/06 , F04F5/54 , F16K15/023 , Y10T137/7915
摘要： Check valves are disclosed, including check valve included in an aspirator, that includes a housing defining an internal cavity having a first port and a second port both in fluid communication therewith, and a sealing member within the cavity. The sealing member is translatable between a closed position against a first seat within the internal cavity of the housing and an open position against a second seat within the internal cavity of the housing. The sealing member has a sealing material positioned for sealing engagement with the first seat when the sealing member is in the closed position and a reinforcing member positioned for engagement with the second seat when the sealing member is in the open position.
摘要翻译： 公开了止回阀，包括包括在抽吸器中的止回阀，止回阀包括限定内腔的壳体，所述内腔具有与其流体连通的第一端口和第二端口以及腔内的密封构件。 密封构件可在抵靠壳体的内腔中的第一座的闭合位置和抵靠壳体的内腔内的第二座的打开位置之间平移。 密封构件具有密封材料，当密封构件处于关闭位置时密封材料被定位成与第一座密封接合，并且当密封构件处于打开位置时，加强构件被定位成与第二座接合。
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8.发明公开NOISE ATTENUATION IN A CHECK VALVE UNIT OR APPARATUS FOR PRODUCING VACUUM 审中-公开RAUSCHUNTERDRÜCKUNGBEI EINERRÜCKSCHLAGVENTILEINHEITODER VORRICHTUNG ZUR VAKUUMERZEUGUNG
公开(公告)号：EP3055597A4
公开(公告)日：2017-06-07
申请号：EP14852220
申请日：2014-10-08
发明人： HAMPTON KEITH , FLETCHER DAVID E , GRAICHEN BRIAN M , BRAVO REX , GILMER MATT , NIEDERT ANDREW
IPC分类号： F16K15/00
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端口，出口端口和与其流体连通的腔室的壳体，由此限定从入口端口穿过腔室到出口端口的流动路径。 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落在第二阀座上的位置。 声音衰减部件设置在腔室下游，腔室内或两者内的流动路径中。 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。 文氏管部分具有与腔室下游的流动路径的流体接头或形成文氏管部分的排放部分，从而限定出口端口。
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