公开(公告)号：US06186421B1

公开(公告)日：2001-02-13

申请号：US09455054

申请日：1999-12-06

申请人： Brent Jack Wahba ,  Harrie William Bonnah, II ,  Michael Schneider ,  George A. Kotkowicz

发明人： Brent Jack Wahba ,  Harrie William Bonnah, II ,  Michael Schneider ,  George A. Kotkowicz

IPC分类号： F02M5100

CPC分类号： F02M61/168 ,  F02M51/0614 ,  F02M51/0625 ,  F02M51/0667 ,  F02M61/12 ,  F02M61/165

摘要： A fuel injector includes a tubular injector body which has an open, upper end and defines an axial fuel passage. A solenoid actuator assembly is disposed in the injector body and includes a spool-like bobbin with a central through-bore and a wound wire coil supported thereon. A magnetic circuit pole subassembly includes a fuel tube, a valve guide, and a pole piece. The fuel tube has a tubular portion and a lower circular flange portion radially extending from a lower terminal end of the tubular portion to contact the open, upper end of the injector body. The nonmagnetic valve guide has a guide cylindrical portion, extending axially downward through the central throughbore and is closely encircled by the bobbin, and a guide circular flange portion radially extending from an upper end of the guide cylindrical portion and mating with the lower circular flange portion of the fuel tube. The pole piece is configured as a constant section cylinder to be received by the fuel tube tubular portion and the guide cylindrical portion. A valve armature is disposed within the injector body downstream of the pole piece where upon energization of the solenoid actuator assembly, the injector body, fuel tube, pole piece, and armature conduct a magnetic circuit to axially draw the valve armature permitting fuel injection.

摘要翻译： 燃料喷射器包括具有敞开的上端并限定轴向燃料通道的管状喷射器主体。 螺线管致动器组件设置在喷射器主体中，并且包括具有中心通孔的线轴状绕线管和支撑在其上的绕线线圈。 磁路杆子组件包括燃料管，阀导向件和极片。 燃料管具有管状部分和下部圆形凸缘部分，其从管状部分的下端部径向延伸以接触喷射器主体的敞开的上端。 非磁性阀导向件具有引导圆柱形部分，其轴向向下延伸通过中心透孔并且被线轴紧密地包围，并且引导圆形凸缘部分从引导圆柱形部分的上端径向延伸并与下圆形凸缘部分配合 的燃料管。 该极片被构造成由燃料管筒部和导向筒部接收的恒定部筒。 阀门电枢设置在喷枪主体下游的极靴的下游，在螺线管致动器组件通电时，喷射器主体，燃料管，极靴和电枢进行磁路以轴向拉动允许燃料喷射的阀座。

公开(公告)号：US06015103A

公开(公告)日：2000-01-18

申请号：US93764

申请日：1998-06-08

申请人： George A. Kotkowicz

发明人： George A. Kotkowicz

IPC分类号： F02M51/06 ,  F02M61/16 ,  F02M61/18 ,  B05B1/30 ,  B05B1/14 ,  F02M39/00

CPC分类号： F02M61/188 ,  F02M51/0671 ,  F02M61/165 ,  F02M61/18 ,  Y10S239/23

摘要： A fuel injector for delivery of fuel to an internal combustion engine has an injector body defining a central axis, a fuel discharge opening coaxial with the central axis having a valve seat extending thereabout, and a valve element normally seated on the valve seat to close the fuel discharge opening. The valve element is operable to move off of the valve seat to open the fuel discharge opening allowing fuel to pass through. A filter-valve guide is coaxially positioned upstream of the valve seat and includes an annular closed bottom, an outer wall extending coaxially upwardly from the annular closed bottom to define an outer diameter, and an inner wall extending coaxially upwardly from the annular closed bottom to define a central opening. The valve element passes through the central opening and the guide inner wall guides the valve element as it moves relative to the valve seat. The annular closed bottom includes filtration openings to filter particulates from fuel passing therethrough, such that particulates are prevented from flowing to the valve seat.

摘要翻译： 用于将燃料输送到内燃机的燃料喷射器具有限定中心轴线的喷射器主体，与中心轴线同轴的燃料排出口具有在其周围延伸的阀座，以及通常安置在阀座上的阀元件以关闭 燃油排放口。 阀元件可操作以从阀座移开以打开允许燃料通过的燃料排放口。 过滤阀引导件同轴地定位在阀座的上游，并且包括环形封闭底部，从环形封闭底部同轴向上延伸以限定外径的外壁，以及从环形封闭底部向上同轴向上延伸的内壁 定义中心开口。 阀元件通过中心开口，并且当阀元件相对于阀座移动时，引导内壁引导阀元件。 环形封闭的底部包括过滤孔，以过滤通过其中的燃料的颗粒，使得防止颗粒流到阀座。