公开(公告)号：US5979789A

公开(公告)日：1999-11-09

申请号：US978579

申请日：1997-11-26

申请人： Jeffrey J. Sullivan ,  John D. Crofts ,  Harry L. Wilson ,  George L. Muntean ,  Kevin L. Vogt ,  Mustahsen Gull ,  John L. Long

发明人： Jeffrey J. Sullivan ,  John D. Crofts ,  Harry L. Wilson ,  George L. Muntean ,  Kevin L. Vogt ,  Mustahsen Gull ,  John L. Long

IPC分类号： F02M57/02 ,  F02M59/36 ,  F02M59/46 ,  F02M47/02

CPC分类号： F02M57/023 ,  F02M59/366 ,  F02M59/466

摘要： A fuel injector for effectively preventing excessive loading of a component mounted internal to the injector is provided which includes a one-piece retainer having first and second connector portions for permitting two independent loads to be applied to different internal components of the injector. The second connector portion includes threads for engaging a nozzle assembly to impart a compressive force on the nozzle assembly. The first connector portion also includes threads for engaging an outer barrel for placing a first compressive load on a load sensitive internal component, such as a center tube of an injection control valve. In this manner, the second compressive force can be set at a minimum level independent from the first compressive force to permit the size of the center tube to be minimized thereby reducing the overall size of the injector. Also, a locking device including a locking ring for engaging the outer barrel ensures a secure connection between the second connector portion and the outer barrel to prevent shifting at the connection during operation of the injector as the load at the connection transitions from a tension load to a compression load thereby ensuring only a minimum load on the center tube. A novel sealing assembly is also provided to permit effective sealing between the end of the center tube and the outer barrel regardless of tolerance variations while providing simplified valve stroke setting capability.

摘要翻译： 提供了一种用于有效地防止在喷射器内部安装的部件的过度加载的燃料喷射器，其包括具有第一和第二连接器部分的一体式保持器，用于允许将两个独立的载荷施加到喷射器的不同内部部件。 第二连接器部分包括用于接合喷嘴组件以在喷嘴组件上施加压缩力的螺纹。 第一连接器部分还包括用于接合外筒的螺纹，用于将第一压缩载荷放置在负载敏感内部部件上，例如喷射控制阀的中心管。 以这种方式，可以将第二压缩力设定在独立于第一压缩力的最小水平，以允许中心管的尺寸最小化，从而减小喷射器的总体尺寸。 此外，包括用于接合外筒的锁定环的锁定装置确保第二连接器部分和外筒之间的牢固连接，以防止在连接处的负载从张力负载转变到喷射器时在连接处的移动 压缩负载，从而确保仅在中心管上的最小负载。 还提供了一种新颖的密封组件，以允许中心管的端部与外筒之间的有效密封，而不管公差变化，同时提供简化的阀冲程设置能力。

公开(公告)号：US5673853A

公开(公告)日：1997-10-07

申请号：US528220

申请日：1995-09-13

申请人： John D. Crofts ,  Mustahsen Gull ,  Edward B. Manring ,  Hisham K. Mozaffar ,  Jeffrey J. Sullivan ,  Kevin L. Vogt ,  Harry L. Wilson ,  George L. Muntean ,  Gary L. Gant ,  Daniel K. Hickey

发明人： John D. Crofts ,  Mustahsen Gull ,  Edward B. Manring ,  Hisham K. Mozaffar ,  Jeffrey J. Sullivan ,  Kevin L. Vogt ,  Harry L. Wilson ,  George L. Muntean ,  Gary L. Gant ,  Daniel K. Hickey

IPC分类号： F02M57/02 ,  F02M59/36 ,  F02M59/46 ,  F02M47/00

CPC分类号： F02M59/366 ,  F02M57/023 ,  F02M59/466

摘要： An electromagnetic fuel injection control valve positioned inside a fuel injector, i.e. a unit injector, for providing fast response and high pressure capability while minimizing the size and complexity of the injector. The control valve includes a valve housing having a supply inlet and fuel outlet, a center tube having a center passage and an annular valve seat, a control valve sleeve slidably mounted on the center tube and an actuator assembly having a coil spring, a stator and an armature. The control valve sleeve moves between an open position permitting fuel to flow between the supply inlet and the fuel outlet and a closed position which sealingly engages the annular valve seat for blocking the flow of fuel between the supply inlet and the fuel outlet. The coil spring biases the control valve sleeve in an open position and is positioned around the center tube. The stator is also axially positioned around the center tube and includes multiple poles. The armature connects to the control valve sleeve and reciprocates when solenoid is activated to allow for high pressure fuel injection into the combustion chamber of an internal combustion engine.

摘要翻译： 位于燃料喷射器内部的电磁燃料喷射控制阀，即单元喷射器，用于在使喷射器的尺寸和复杂度最小化的同时提供快速响应和高压能力。 控制阀包括具有供应入口和燃料出口的阀壳体，具有中心通道和环形阀座的中心管，可滑动地安装在中心管上的控制阀套管和具有螺旋弹簧，定子和 电枢。 控制阀套筒在允许燃料在供应入口和燃料出口之间流动的打开位置和密封地接合环形阀座的关闭位置之间移动，以阻断供应入口和燃料出口之间的燃料流动。 螺旋弹簧将控制阀套件偏压在打开位置并且围绕中心管定位。 定子也围绕中心管轴向定位并且包括多个极。 电枢连接到控制阀套筒，当螺线管被激活以允许高压燃料喷射到内燃机的燃烧室时往复运动。

公开(公告)号：US6116273A

公开(公告)日：2000-09-12

申请号：US849129

申请日：1997-12-08

申请人： Yul J. Tarr ,  Lester L. Peters ,  Bai Mao Yen ,  Laszlo D. Tikk ,  Ivar L. Johnson ,  Daniel G. Burns ,  Mustahsen Gull ,  Harry L. Wilson ,  George L. Muntean

发明人： Yul J. Tarr ,  Lester L. Peters ,  Bai Mao Yen ,  Laszlo D. Tikk ,  Ivar L. Johnson ,  Daniel G. Burns ,  Mustahsen Gull ,  Harry L. Wilson ,  George L. Muntean

IPC分类号： F02M57/02 ,  F02M59/20 ,  F02M59/46 ,  F16K15/04

CPC分类号： F02M63/0054 ,  F02M57/02 ,  F02M57/021 ,  F02M57/024 ,  F02M59/205 ,  F02M59/462 ,  F02M59/464

摘要： Check valves (500) are incorporated into a fuel injector so as to form a controlling orifice in the system between the solenoid vales which direct fuel to the respective injection and timing chambers of the fuel injector and the chambers themselves. The precision fuel metering capability of the valve (500) is determined by an annular clearance created between the plunger (512) of the valve and the valve body (510) when the valve is in its maximum stroke. For achieving a bi-stable operation of the valve, the ratio of the plunger valve seat (510d) area to the maximum plunger valve (512b) area and the spring (514) are key parameters. The check valves (500) are formed as cartridge type check valves that can be calibrated outside of the injector prior to the installation thereof.

摘要翻译： PCT No.PCT / US95 / 15873 Sec。 371 1997年12月8日第 102（e）日期1997年12月8日PCT提交1995年12月6日PCT公布。 公开号WO96 / 18033 日期1996年6月13日检查阀（500）被并入燃料喷射器中，以便在电磁阀之间的系统中形成控制孔，其将燃料引导到燃料喷射器和腔室本身的相应喷射和定时室。 当阀处于其最大行程时，阀（500）的精密燃料计量能力由在阀的柱塞（512）和阀体（510）之间产生的环形间隙确定。 为了实现阀的双稳态操作，柱塞阀座（510d）面积与最大柱塞阀（512b）面积和弹簧（514）的比是关键参数。 止回阀（500）形成为盒式止回阀，其可以在其安装之前在喷射器外部校准。