公开(公告)号：EP3148852A4

公开(公告)日：2018-01-10

申请号：EP15799642

申请日：2015-05-29

申请人： DAYCO IP HOLDINGS LLC

发明人： FLETCHER DAVID E ,  GRAICHEN BRIAN M ,  MILLER JAMES H ,  BRAVO REX ,  GILMER MATT ,  HAMPTON KEITH ,  NIEDERT ANDREW

IPC分类号： B60T13/57 ,  F02B33/44 ,  F02B37/16 ,  F04F5/16 ,  F04F5/20 ,  F04F5/54 ,  F16K3/32

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.

公开(公告)号：EP3152417A4

公开(公告)日：2018-05-23

申请号：EP15803463

申请日：2015-06-05

申请人： DAYCO IP HOLDINGS LLC

发明人： FLETCHER DAVID E ,  MILLER JAMES H ,  BRAVO REX ,  NIEDERT ANDREW ,  GILMER MATT ,  HAMPTON KEITH ,  BRUDER NICOLE

IPC分类号： F04F5/20 ,  F01N3/021

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.

公开(公告)号：EP3126201A4

公开(公告)日：2018-02-07

申请号：EP15773286

申请日：2015-04-03

申请人： DAYCO IP HOLDINGS LLC

发明人： NIEDERT ANDREW ,  GRAICHEN BRIAN M

IPC分类号： B60T13/52 ,  F02M35/10 ,  F02M35/12 ,  F16K15/02 ,  F16K15/14

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.

公开(公告)号：EP3007949A4

公开(公告)日：2017-05-03

申请号：EP14811266

申请日：2014-06-06

申请人： DAYCO IP HOLDINGS LLC

发明人： FLETCHER DAVE ,  GRAICHEN BRIAN ,  HAMPTON KEITH ,  GILMER MATT ,  NIEDERT ANDREW

IPC分类号： B60T13/52

CPC分类号： B60T13/52 ,  B60T17/02 ,  Y10T137/87587

摘要： A Venturi device for producing vacuum from fluids in an engine system has a body defining a Venturi gap separating apart an outlet end of a converging motive section and an inlet end of a diverging discharge section by a lineal distance, and a suction port in fluid communication with the Venturi gap. The converging motive section and the diverging discharge section both gradually, continuously taper toward the Venturi gap, the converging motive section defines a circular-shaped motive inlet and an elliptical- or polygonal-shaped motive outlet, the diverging discharge section defines an elliptical- or polygonal-shaped discharge inlet, and an inner passageway of the converging motive section transitions as a hyperbolic function from the motive inlet to the elliptical- or polygonal-shaped motive outlet.

摘要翻译： 本文公开了吸气器，其包括在会聚动力部分的出口端和分流排出部分的入口端之间限定文丘里间隙的主体，并且具有与文氏管间隙流体连通的吸入端口。 会聚动力部分限定了圆形的动力入口并且限定了椭圆形或多边形动力出口，并且分支排出部分限定了椭圆形或多边形的排出入口。 在一个实施例中，会聚动力部分限定内通道，该内通道从双向函数从圆形动力入口过渡到椭圆形或多边形动力出口，并且椭圆形或多边形动力出口具有 小于圆形动力入口的面积。

公开(公告)号：EP3094898A4

公开(公告)日：2017-12-06

申请号：EP14870316

申请日：2014-12-10

申请人： DAYCO IP HOLDINGS LLC

发明人： HAMPTON KEITH ,  FLETCHER DAVID ,  GRAICHEN BRIAN M ,  BRAVO REX ,  MILLER JAMES H ,  GILMER MATT ,  NIEDERT ANDREW

IPC分类号： F16K3/32 ,  F04F5/46 ,  F04F5/52

CPC分类号： F04F5/20 ,  F04F5/461 ,  F04F5/464 ,  F04F5/466 ,  F04F5/52 ,  F16K3/18

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.

公开(公告)号：EP3097331A4

公开(公告)日：2017-08-09

申请号：EP15737914

申请日：2015-01-20

申请人： DAYCO IP HOLDINGS LLC

发明人： FLETCHER DAVID ,  MILLER JAMES H ,  BRAVO REX ,  NIEDERT ANDREW ,  GILMER MATT

IPC分类号： F16K15/02 ,  F04F5/54

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。

公开(公告)号：EP3055597A4

公开(公告)日：2017-06-07

申请号：EP14852220

申请日：2014-10-08

申请人： DAYCO IP HOLDINGS LLC

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。