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公开(公告)号：US06708907B2
公开(公告)日：2004-03-23
申请号：US09882334
申请日：2001-06-18
IPC分类号： F02M5100
CPC分类号： F02M61/1853 , F02M51/0671 , F02M61/162 , F02M61/165 , F02M2200/505
摘要： A fuel injector including a body having an inlet, an outlet, and a fuel passageway extending from the inlet to the outlet along a longitudinal axis. An armature is proximate the inlet of the body. A needle is operatively connected to the armature. A seat is proximate the outlet of the body. A guide member is disposed within the body, the guide member including an aperture that guides the needle. A flat metering disk is disposed between the seat and the guide member, the flat metering disk including a central aperture, a perimeter, and a plurality of slots. Each of the plurality of slots is disposed about the central aperture and extends from the central aperture toward the perimeter to define a volume. The plurality of slots are configured so that the volumes of two of the plurality of slots are non-uniform, and/or the plurality of slots are non-uniformly disposed about the central aperture.
摘要翻译： 一种燃料喷射器，包括具有入口，出口和沿着纵向轴线从入口延伸到出口的燃料通道的主体。 衔铁靠近身体的入口。 针可操作地连接到电枢。 座椅靠近身体的出口。 引导构件设置在主体内，引导构件包括引导针的孔。 平板计量盘设置在座与引导构件之间，平计量盘包括中心孔，周边和多个槽。 多个狭槽中的每一个围绕中心孔布置并且从中心孔朝向周边延伸以限定体积。 多个槽被构造成使得多个槽中的两个槽的体积不均匀，和/或多个槽围绕中心孔不均匀地设置。
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公开(公告)号：US06978950B2
公开(公告)日：2005-12-27
申请号：US10369687
申请日：2003-02-21
CPC分类号： F02M61/168 , F02M51/0664 , F02M51/0671 , F02M2200/505
摘要： A fuel injector includes a housing, a passageway, a coil assembly, a seat, and a closure member. The housing extends along a longitudinal axis between an inlet and an outlet, and fuel flows through the passageway from the inlet to the outlet. The coil assembly is disposed proximate the inlet of the housing, and the seat is disposed proximate the outlet of the housing. The closure member is disposed in the housing and is movable along the longitudinal axis between a first position, which prohibits fuel flow, and a second position, which permits fuel flow. The closure member includes a magnetic member, a needle, and a tubular member. The magnetic member is adapted to cooperate with the coil assembly to move the closure member from the first position to the second position. The needle member occludes the seat in the first position of the closure member. The tubular member couples the magnetic member to the needle member, and defines a portion of the passageway. The tubular member extends between a first end, which defines a first opening, and second end, which defines a second opening. A portion of the first opening is aligned with the second opening such that fuel flow between the first and second openings is along a flow path that is parallel to the longitudinal axis.
摘要翻译： 燃料喷射器包括壳体，通道，线圈组件，座椅和关闭构件。 壳体沿着入口和出口之间的纵向轴线延伸，并且燃料从入口到出口流过通道。 线圈组件设置在壳体的入口附近，并且座被设置在壳体的出口附近。 闭合构件设置在壳体中并且可沿着纵向轴线在禁止燃料流动的第一位置和允许燃料流动的第二位置之间移动。 封闭构件包括磁性构件，针和管状构件。 磁性构件适于与线圈组件配合以将闭合构件从第一位置移动到第二位置。 所述针构件在所述关闭构件的第一位置中封闭所述座椅。 管状构件将磁性构件联接到针构件，并且限定通道的一部分。 管状构件在限定第一开口的第一端和限定第二开口的第二端之间延伸。 第一开口的一部分与第二开口对准，使得在第一和第二开口之间的燃料流动沿着平行于纵向轴线的流动路径。
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公开(公告)号：US06405947B2
公开(公告)日：2002-06-18
申请号：US09370850
申请日：1999-08-10
申请人： James Paul Fochtman
发明人： James Paul Fochtman
IPC分类号： B05B130
CPC分类号： F02M21/0266 , F02M21/0254 , F02M51/0671 , F02M51/0682 , F02M61/18 , Y02T10/32
摘要： An electromagnetically operable fuel injector for a gaseous fuel injection system of an internal combustion engine, the injector having a generally longitudinal axis. which comprises, a ferromagnetic core, a magnetic coil at least partially surrounding the ferromagnetic core and an armature magnetically coupled to the magnetic coil and being movably responsive to the magnetic coil. The armature actuates a valve closing element which interacts with a fixed valve seat of a fuel valve and is movable away from the fixed valve seat when the magnetic coil is excited. The fixed valve seat defines a central fuel opening and a generally annular groove adjacent the central fuel opening, the armature having a generally elongated shape and a generally central opening for axial reception and passage of gaseous fuel from a fuel inlet connector positioned adjacent thereto. The fuel inlet connector and the armature are adapted to permit a first flow path of gaseous fuel between the armature and the magnetic coil as part of a path leading to said fuel valve. A method of directing gaseous fuel through an electromagnetically operable fuel injector for a fuel system of an ? combustion engine is also disclosed.
摘要翻译： 一种用于内燃机的气体燃料喷射系统的电磁可操作的燃料喷射器，所述喷射器具有大致纵向的轴线。 其包括铁磁芯，至少部分地围绕铁磁芯的磁性线圈和磁耦合到所述磁性线圈并且可动地响应于所述磁性线圈的电枢。 电枢致动阀关闭元件，该阀关闭元件与燃料阀的固定阀座相互作用，并且当电磁线圈被激励时可移动离开固定阀座。 固定阀座限定了中心燃料开口和邻近中心燃料开口的大致环形槽，电枢具有大致细长的形状和大致中心的开口，用于轴向地接收和通过与邻近其定位的燃料入口连接器的气体燃料。 燃料入口连接器和电枢适于允许电枢和电磁线圈之间的气态燃料的第一流动路径作为通向所述燃料阀的路径的一部分。 一种通过用于燃料系统的电磁可操作的燃料喷射器引导气体燃料的方法， 内燃机也被公开。
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公开(公告)号：US06308901B1
公开(公告)日：2001-10-30
申请号：US09500232
申请日：2000-02-08
IPC分类号： F02M6120
CPC分类号： F02M61/1806 , F02M61/166 , F02M61/168 , F02M61/1853
摘要： An injector for high pressure direct fuel injection in an internal combustion engine is disclosed. The injector has a downstream end and a longitudinal axis extending therethrough. The injector has an outlet orifice located at the downstream end. The outlet orifice has an outlet axis oblique to the longitudinal axis. The outlet orifice discharges a circular cone-shaped spray having a spray axis co-linear with the outlet axis. A method of forming a bent circular cone-shaped spray pattern is also disclosed.
摘要翻译： 公开了一种用于内燃机中的高压直接燃料喷射的喷射器。 注射器具有延伸穿过其中的下游端和纵向轴线。 注射器具有位于下游端的出口孔。 出口孔具有相对于纵向轴线倾斜的出口轴线。 出口孔排出具有与出口轴线共线的喷射轴的圆锥形喷雾。 还公开了一种形成弯曲的圆锥形喷雾图案的方法。
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公开(公告)号：US06257508B1
公开(公告)日：2001-07-10
申请号：US09482059
申请日：2000-01-13
IPC分类号： F02M4702
CPC分类号： F02M51/0625 , F02M51/0671 , F02M61/12 , F02M61/162
摘要： The present invention provides a valve assembly including a housing, an armature, an armature bias spring, a needle, and a seat. The valve assembly housing has an inlet, an outlet, and an axially extending passageway from the inlet to the outlet along a longitudinal axis. The armature is disposed within the passageway. The armature has an armature passage including a first portion and a second portion. The first portion has a first cross-sectional area. The second portion has a second cross-sectional area. The first cross-sectional area of the first portion is greater than the second cross-sectional area of the second portion. The armature bias spring is disposed within the first portion of the armature passage. The needle is disposed within the second portion of the armature passage. The seat is located proximate the outlet. The flow restrictor is disposed between the first portion and the second portion of the armature passage of the armature. The flow restrictor includes an orifice having a third cross-sectional area that is less than the first cross-sectional area. The present invention also provides a method of generating flow from a valve assembly without after-flow through the valve assembly when the valve assembly is commanded to terminate a flow cycle. The method is achieved by sizing the first portion of the armature passage with a first volume and the second portion of the armature passage with a second volume, which is less than the first volume; providing a first vent aperture that communicates the first volume with a portion of the armature passageway; providing a second vent aperture that communicates the second volume with a portion of the armature passageway; and locating a flow restrictor between the first volume and the second volume.
摘要翻译： 本发明提供了一种阀组件，其包括壳体，电枢，电枢偏置弹簧，针和座。 阀组件壳体具有入口，出口和沿着纵向轴线从入口到出口的轴向延伸的通道。 电枢设置在通道内。 电枢具有包括第一部分和第二部分的电枢通道。 第一部分具有第一横截面积。 第二部分具有第二横截面积。 第一部分的第一横截面面积大于第二部分的第二横截面面积。 电枢偏置弹簧设置在电枢通道的第一部分内。 针设置在电枢通道的第二部分内。 座椅靠近出口。 限流器设置在电枢的电枢通道的第一部分和第二部分之间。 限流器包括具有小于第一横截面积的第三横截面面积的孔口。 本发明还提供了一种当阀组件被命令终止流动循环时，从阀组件产生流动而不经过阀组件的流动的方法。 该方法通过使电枢通道的第一部分具有第一容积并且电枢通道的第二部分具有小于第一容积的第二容积来实现; 提供将所述第一容积与所述电枢通道的一部分连通的第一通气孔; 提供使所述第二容积与所述电枢通道的一部分连通的第二通气孔; 以及在所述第一容积和所述第二容积之间定位限流器。
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公开(公告)号：US06173915B1
公开(公告)日：2001-01-16
申请号：US09370851
申请日：1999-08-10
IPC分类号： B05B130
CPC分类号： F02M21/0266 , F02M21/0209 , F02M21/0254 , F02M21/0296 , F02M51/0667 , F02M51/0671 , Y02T10/32
摘要： An electromagnetically operable fuel injector for a gaseous fuel injection system of an internal combustion engine, the injector having a generally longitudinal axis, a ferromagnetic core, a magnetic coil at least partially surrounding the ferromagnetic core, and an armature magnetically coupled to the magnetic coil and being movably responsive to the magnetic coil. The armature actuates a valve closing element in the form of a valve needle which interacts with a fixed valve seat of a fuel valve and is being movable away from the fixed valve seat when the magnetic coil is excited. The armature has a generally elongated shape and a generally central opening for axial reception and passage of gaseous fuel from a fuel inlet connector positioned adjacent thereto. The fuel inlet connector and the armature are adapted to permit at least a first flow path of gaseous fuel between the armature and the magnetic coil as part of a path leading to the fuel valve. A thermally conductive material is positioned adjacent the magnetic coil to transfer heat from the magnetic coil to adjacent components to as to render the coil thermally efficient and relatively unaffected by heat generated thereby.
摘要翻译： 一种用于内燃机的气体燃料喷射系统的电磁可操作的燃料喷射器，所述喷射器具有大致纵向轴线，铁磁芯，至少部分地围绕所述铁磁芯的磁性线圈以及磁耦合到所述磁性线圈的电枢， 可动地响应于该线圈。 电枢致动阀针形式的阀关闭元件，该阀关闭元件与燃料阀的固定阀座相互作用，并且当电磁线圈被激励时可移动离开固定阀座。 电枢具有大致细长的形状和大致中心的开口，用于轴向接收和从邻近其定位的燃料入口连接器通过气体燃料。 燃料入口连接器和电枢适于允许在电枢和电磁线圈之间的气态燃料的至少第一流动路径作为通向燃料阀的路径的一部分。 导热材料位于磁性线圈附近，以将热量从磁性线圈传递到相邻的部件，以使线圈热效率并相对不受其产生的热的影响。
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公开(公告)号：US07617605B2
公开(公告)日：2009-11-17
申请号：US11453543
申请日：2006-06-15
CPC分类号： B23K26/28 , B23K26/0823 , B23K26/244 , F02M51/0682 , F02M61/168 , F02M2200/16 , F02M2200/8061 , F02M2200/8084 , F02M2200/9053 , Y10T29/49298 , Y10T29/49416 , Y10T29/49421 , Y10T29/49425
摘要： In a method for reducing “blow-out” of annular welds for attaching components in a fuel injector, a relief region is formed on radially-facing surfaces of the components. The relief region is adjacent to a press-fit region. The components are then pressed together, and a weld is made in the relief region. A sealed gap is thereby formed in the relief region between the weld and the press-fit region. The sealed gap provides for the expansion of trapped gases that could otherwise “blow out” the liquid weld bead.
摘要翻译： 在用于减少用于在燃料喷射器中安装部件的环形焊缝的“吹出”的方法中，在部件的径向面上形成有凸起区域。 浮雕区域与压配合区域相邻。 然后将这些部件压在一起，并在浮雕区域中进行焊接。 因此，在焊接部和压配合区域之间的释放区域中形成密封间隙。 密封的间隙提供了可能会“吹出”液体焊道的被捕获的气体的膨胀。
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公开(公告)号：US06508418B1
公开(公告)日：2003-01-21
申请号：US09320178
申请日：1999-05-26
IPC分类号： B05B130
CPC分类号： F02M21/0266 , F02M21/0215 , F02M21/0254 , F02M51/0625 , F02M51/0671 , F02M61/12 , Y02T10/32
摘要： An electromagnetically actuable fuel injector for an internal combustion engine is disclosed having an outer housing, a fuel inlet connector positioned in the upper end portion of the outer housing for reception of fuel therein, and an armature having a valve needle attached thereto and positioned adjacent the fuel inlet connector and spaced therefrom by a working gap. The armature defines a generally elongated central opening to receive fuel flow from the fuel inlet connector and has valve needle attached thereto which interacts with a fixed valve having a fixed valve seat associated with the housing to selectively permit fuel to flow through a valve aperture associated with the fixed valve seat. The fuel inlet connector has a fuel outlet end facing a fuel inlet end of the armature and includes a plurality of radially extending raised pads separated by a corresponding plurality of radially extending recessed portions to reduce the contact area between the fuel inlet connector and the armature when the armature is moved upwardly, and to promote fuel flow transversely across the working gap therebetween to establish a first fuel flow path outside of the armature. The first fuel flow path prevents contaminants from accumulating in the working gap. The armature includes at least one first aperture extending through a wall portion thereof for receiving fuel flow from the generally elongated central opening and for directing the fuel flow to a second flow path toward the fixed valve seat. At least one-second aperture extends through a wall portion of the armature and extends at a generally acute angle relative to the longitudinal axis to establish a third fuel flow path toward the fixed valve seat. The size, orientation and numbers of the apertures can be varied to achieve predetermined flow conditions. A method of directing fuel through an injector is also disclosed although the fuel injector and method disclosed utilize gaseous fuels, all types of fuels are contemplated.
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公开(公告)号：US20080246367A1
公开(公告)日：2008-10-09
申请号：US11966860
申请日：2007-12-28
CPC分类号： H01L41/094 , H01L41/0926 , Y10T29/42
摘要： A piezoelectric element comprises a piezoelectric ceramic wafer bonded to a substrate, with a surface profile of the substrate being non-uniformly configured to affect the spring rate of the piezoelectric element. For example, in one example embodiment the substrate has its profile configured so that its stiffness is modified or non-uniform along at least one axis of the substrate. The nature of the non-uniform surface profile can acquire various configurations or patterns.
摘要翻译： 压电元件包括结合到基板的压电陶瓷晶片，其基板的表面轮廓不均匀地构造成影响压电元件的弹簧刚度。 例如，在一个示例实施例中，衬底具有其轮廓，其轮廓被配置为使得其刚度沿衬底的至少一个轴线被修改或不均匀。 不均匀表面轮廓的性质可以获得各种配置或图案。
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公开(公告)号：US06431474B1
公开(公告)日：2002-08-13
申请号：US09320179
申请日：1999-05-26
IPC分类号： B05B130
摘要： An electromagnetically operable fuel injector for a fuel injection system of an internal combustion engine is disclosed having a ferromagnetic core, a magnetic coil at least partially surrounding the ferromagnetic core and an armature magnetically coupled to the magnetic coil and being movably responsive to the magnetic coil. The armature actuates a valve-closing element, which interacts with a fixed valve seat and is movable away from the fixed valve seat of a fuel valve when the magnetic coil is excited. The armature has a generally elongated shape and a generally central opening for reception of fuel from a fuel inlet connector positioned adjacent thereto. The fuel inlet connector extends in a generally longitudinal direction above the armature and defines a central path for fuel to enter the inlet connector and to be directed toward the armature for further passage toward the fixed valve seat. The fuel inlet connector has a lowermost end portion spaced above the armature to define a working gap through which the armature is movable to open and close the valve. The lowermost end portion of the fuel inlet connector has a transverse cross-sectional dimension corresponding to the transverse dimension of an upper end face of the armature to define a substantially direct magnetic flux path between the armature and the fuel inlet connector.
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