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公开(公告)号：US09494117B2
公开(公告)日：2016-11-15
申请号：US14293237
申请日：2014-06-02
发明人： Luigi Gargiulo , Marco Mechi , Nicola Iannaccone
CPC分类号： F02M51/0657 , F02M51/0682 , F02M51/0685 , F02M61/10 , F02M61/1806 , F02M61/188 , F02M2200/315
摘要： A valve assembly for an injection valve includes a valve body having a cavity with a fluid inlet portion and a fluid outlet portion; a hollow valve needle axially movable in the cavity between open and closed positions to control fluid flow through the fluid outlet portion, wherein fluid can flow from the fluid inlet portion into the hollow valve needle; and an actuator assembly that actuates the valve needle and includes an axially movable armature. The valve needle includes first orifice(s) between the armature and the fluid outlet portion and second orifice(s) located adjacent or upstream of the armature. The first and second orifices allow fluid flow between the hollow valve needle and the cavity. A first gap defined between the valve needle and the armature allows fluid flow from the hollow valve needle via the second orifice into the first gap and further into the cavity.
摘要翻译： 一种用于喷射阀的阀组件包括具有腔体的阀体，该空腔具有流体入口部分和流体出口部分; 空心阀针，其可在空腔中在打开和关闭位置之间轴向移动以控制流体流过流体出口部分，其中流体可以从流体入口部分流入中空阀针; 以及致动器组件，其致动阀针并且包括可轴向移动的衔铁。 阀针包括电枢和流体出口部分之间的第一孔口和位于电枢附近或上游的第二孔口。 第一和第二孔允许流体在中空阀针和空腔之间流动。 限定在阀针和电枢之间的第一间隙允许流体从中空阀针通过第二孔流入第一间隙并进一步进入空腔。
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公开(公告)号：US10982640B2
公开(公告)日：2021-04-20
申请号：US16313220
申请日：2017-06-29
发明人： Luigi Gargiulo , Antonio Agresta , Marco Mechi
摘要： An injection valve may include: a valve needle moving from a closed position to an open position; a calibration spring biasing the needle towards the closed position; an armature moving toward the pole piece to take the valve needle towards the open position with respect to the valve needle; and a pole piece. Some valves include a magnetic ring moving between a first position, with a top side spaced apart from the pole piece and an underside in contact with the valve needle, and a second position where the top side is in contact with the pole piece. A second spring is in parallel to the calibration spring. An upper retaining element connected to a shaft extends in radial direction to limit movement of the armature relative to the valve needle so that the armature connects to the upper retaining element to displace the valve needle towards the open position.
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公开(公告)号：US20200309077A1
公开(公告)日：2020-10-01
申请号：US16313220
申请日：2017-06-29
发明人： Luigi Gargiulo , Antonio Agresta , Marco Mechi
摘要： An injection valve may include: a valve needle moving from a closed position to an open position; a calibration spring biasing the needle towards the closed position; an armature moving toward the pole piece to take the valve needle towards the open position with respect to the valve needle; and a pole piece. Some valves include a magnetic ring moving between a first position, with a top side spaced apart from the pole piece and an underside in contact with the valve needle, and a second position where the top side is in contact with the pole piece. A second spring is in parallel to the calibration spring. An upper retaining element connected to a shaft extends in radial direction to limit movement of the armature relative to the valve needle so that the armature connects to the upper retaining element to displace the valve needle towards the open position.
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公开(公告)号：US20150204289A1
公开(公告)日：2015-07-23
申请号：US14598504
申请日：2015-01-16
IPC分类号： F02M51/06
CPC分类号： F02M51/0625 , F02M51/066 , F02M51/0685
摘要： A fuel injection valve for an internal combustion engine includes a movable armature including first and second armature parts, and a magnetic coil that generates a magnetic field for effecting an axial travel of the armature to displace a valve needle away from a closing position. During a first period of axial travel, the second armature part is axially displaced while the valve needle remains closed. During a subsequent second period of the axial travel, the first and second armature parts and the valve needle are fixed with respect to each other and travel axially with respect to the housing. During a third period of the travel, only the first armature part travels further towards the pole element for moving the valve needle further away from the closing position and the axial travel of the first armature part is subsequently stopped at the end of the third period.
摘要翻译： 一种用于内燃机的燃料喷射阀包括包括第一和第二电枢部分的可动电枢和产生磁场的磁性线圈，用于实现电枢的轴向移动以使阀针从关闭位置移位。 在轴向移动的第一周期期间，第二衔铁部分在阀针保持关闭的同时轴向移动。 在随后的轴向行进的第二时段期间，第一和第二电枢部件和阀针相对于彼此固定并且相对于壳体轴向地移动。 在行进的第三周期期间，只有第一电枢部件进一步向极元件移动，以使阀针进一步远离关闭位置，并且第一电枢部件的轴向行进随后在第三周期结束时停止。
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公开(公告)号：US20150048185A1
公开(公告)日：2015-02-19
申请号：US14293237
申请日：2014-06-02
发明人： Luigi Gargiulo , Marco Mechi , Nicola Iannaccone
CPC分类号： F02M51/0657 , F02M51/0682 , F02M51/0685 , F02M61/10 , F02M61/1806 , F02M61/188 , F02M2200/315
摘要： A valve assembly for an injection valve includes a valve body having a cavity with a fluid inlet portion and a fluid outlet portion; a hollow valve needle axially movable in the cavity between open and closed positions to control fluid flow through the fluid outlet portion, wherein fluid can flow from the fluid inlet portion into the hollow valve needle; and an actuator assembly that actuates the valve needle and includes an axially movable armature. The valve needle includes first orifice(s) between the armature and the fluid outlet portion and second orifice(s) located adjacent or upstream of the armature. The first and second orifices allow fluid flow between the hollow valve needle and the cavity. A first gap defined between the valve needle and the armature allows fluid flow from the hollow valve needle via the second orifice into the first gap and further into the cavity.
摘要翻译： 一种用于喷射阀的阀组件包括具有腔体的阀体，该空腔具有流体入口部分和流体出口部分; 空心阀针，其可在空腔中在打开和关闭位置之间轴向移动，以控制流体流过流体出口部分，其中流体可以从流体入口部分流入中空阀针; 以及致动器组件，其致动阀针并且包括可轴向移动的衔铁。 阀针包括电枢和流体出口部分之间的第一孔口和位于电枢附近或上游的第二孔口。 第一和第二孔允许流体在中空阀针和空腔之间流动。 限定在阀针和电枢之间的第一间隙允许流体从中空阀针通过第二孔流入第一间隙并进一步进入空腔。
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公开(公告)号：US09382885B2
公开(公告)日：2016-07-05
申请号：US14598504
申请日：2015-01-16
IPC分类号： F02M51/06
CPC分类号： F02M51/0625 , F02M51/066 , F02M51/0685
摘要： A fuel injection valve for an internal combustion engine includes a movable armature including first and second armature parts, and a magnetic coil that generates a magnetic field for effecting an axial travel of the armature to displace a valve needle away from a closing position. During a first period of axial travel, the second armature part is axially displaced while the valve needle remains closed. During a subsequent second period of the axial travel, the first and second armature parts and the valve needle are fixed with respect to each other and travel axially with respect to the housing. During a third period of the travel, only the first armature part travels further towards the pole element for moving the valve needle further away from the closing position and the axial travel of the first armature part is subsequently stopped at the end of the third period.
摘要翻译： 一种用于内燃机的燃料喷射阀包括包括第一和第二电枢部分的可动电枢和产生磁场的磁性线圈，用于实现电枢的轴向移动以使阀针从关闭位置移位。 在轴向移动的第一周期期间，第二衔铁部分在阀针保持关闭的同时轴向移动。 在随后的轴向行进的第二时段期间，第一和第二电枢部件和阀针相对于彼此固定并且相对于壳体轴向地移动。 在行进的第三周期期间，只有第一电枢部件进一步向极元件移动，以使阀针进一步远离关闭位置，并且第一电枢部件的轴向行进随后在第三周期结束时停止。
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公开(公告)号：US20200325865A1
公开(公告)日：2020-10-15
申请号：US16305602
申请日：2017-05-16
发明人： Antonio Agresta , Luigi Gargiulo , Ivano Izzo
摘要： Valve assembly comprising: a valve body with an inlet and an outlet; a valve needle in the valve body preventing fluid flow through the outlet when closed and permitting the flow otherwise; a retaining element connected to the needle, extending radially and remote from the fluid outlet; and an electro-magnetic actuator to actuate the valve needle. The electro-magnetic actuator unit comprises an armature movable relative to the valve body. The armature defines a central axial opening through which the valve needle extends and slides on the valve needle. The retaining element limits the axial displacement of the armature. The armature comprises at least one axial slot arranged adjacent to and connected with the central axial opening, extending through the armature in the axial direction. The retaining element projects beyond the central axial opening and the axial slot projects beyond the retaining element in the radial outward direction.
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公开(公告)号：US09976529B2
公开(公告)日：2018-05-22
申请号：US14368012
申请日：2012-12-13
发明人： Marco Mechi , Roberto Ricci , Nicola Iannaccone , Luigi Gargiulo
CPC分类号： F02M61/04 , F02M61/14 , F02M61/16 , F02M2200/16 , F02M2200/858
摘要： A valve assembly for an injection valve includes a valve body with a central longitudinal axis, the valve body having a valve body groove extending circumferentially around the valve body and being designed to take in a gasket, the valve body groove having a first wall section and a second wall section, the wall sections configured to be coupled to the gasket in a manner that the valve assembly is sealingly coupable with a cylinder head of a combustion engine, and an injection nozzle enabling a fluid flow through the valve assembly. The second wall section is arranged relative to the first wall section in axial direction away from the injection nozzle. The first wall section extends to a first radius and the second wall section extends to a second radius, and the first radius is bigger than the second radius.
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公开(公告)号：US20150060573A1
公开(公告)日：2015-03-05
申请号：US14368012
申请日：2012-12-13
发明人： Marco Mechi , Roberto Ricci , Nicola Iannaccone , Luigi Gargiulo
IPC分类号： F02M61/04
CPC分类号： F02M61/04 , F02M61/14 , F02M61/16 , F02M2200/16 , F02M2200/858
摘要： A valve assembly for an injection valve includes a valve body with a central longitudinal axis, the valve body having a valve body groove extending circumferentially around the valve body and being designed to take in a gasket, the valve body groove having a first wall section and a second wall section, the wall sections configured to be coupled to the gasket in a manner that the valve assembly is sealingly coupable with a cylinder head of a combustion engine, and an injection nozzle enabling a fluid flow through the valve assembly. The second wall section is arranged relative to the first wall section in axial direction away from the injection nozzle. The first wall section extends to a first radius and the second wall section extends to a second radius, and the first radius is bigger than the second radius.
摘要翻译： 用于喷射阀的阀组件包括具有中心纵向轴线的阀体，所述阀体具有围绕所述阀体周向延伸的阀体凹槽，并被设计成吸入垫圈，所述阀体凹槽具有第一壁部分和 第二壁部分，所述壁部分被配置成以使得所述阀组件与内燃机的气缸盖密封地耦合的方式联接到所述垫圈，以及能够使流体流过所述阀组件的喷嘴。 所述第二壁部相对于所述第一壁部沿轴向配置成远离所述喷嘴。 第一壁部分延伸到第一半径，第二壁部分延伸到第二半径，并且第一半径大于第二半径。
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