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1. 发明授权

US6126412A Fluid driven piston assembly and fuel injector using same 失效
标题翻译：流体驱动的活塞组件和使用其的燃料喷射器
公开(公告)号：US6126412A
公开(公告)日：2000-10-03
申请号：US987950
申请日：1997-12-10
申请人： Ralph A. Smith, III
发明人： Ralph A. Smith, III
IPC分类号： F02M45/00 , F02M57/02 , F04B17/04
CPC分类号： F02M45/00 , F02M57/025
摘要： A fluid driven piston assembly, preferably for use in a hydraulically-actuated fuel injector, includes a body that defines an actuation fluid cavity and a piston bore. A piston is positioned in the piston bore and moveable between a retracted position and an advanced position. The piston has a pressure surface exposed to fluid pressure in the actuation fluid cavity when it is away from its retracted position. A sealing member is positioned in sealing contact between the piston and the body when the piston is in its retracted position. The sealing member isolates a portion of the piston's pressure surface from the fluid pressure in the actuation fluid cavity when the piston is in its retracted position.
摘要翻译：优选用于液压致动燃料喷射器的流体驱动活塞组件包括限定致动流体腔体和活塞孔的主体。活塞定位在活塞孔中并可在缩回位置和前进位置之间移动。当活塞远离其缩回位置时，活塞具有暴露于致动流体腔中的流体压力的压力表面。当活塞处于其缩回位置时，密封构件被定位成在活塞和主体之间的密封接触。当活塞处于其缩回位置时，密封构件将活塞的压力表面的一部分与致动流体腔中的流体压力隔离。

2. 发明授权

US6012429A Hydraulically-actuated fuel injector with idle stability port 失效
标题翻译：具有空闲稳定端口的液压致动燃油喷射器
公开(公告)号：US6012429A
公开(公告)日：2000-01-11
申请号：US740288
申请日：1996-10-25
申请人： David J. Beatty , Ralph A. Smith, III , Steven Y. Tian
发明人： David J. Beatty , Ralph A. Smith, III , Steven Y. Tian
IPC分类号： F02M45/00 , F02M45/06 , F02M45/12 , F02M57/02 , F02M59/10 , F02M63/02 , F02M41/00
CPC分类号： F02M57/026 , F02M45/00 , F02M45/066 , F02M45/12 , F02M57/025 , F02M59/105
摘要： A hydraulically-actuated fuel injector includes an injector body having a nozzle chamber that opens to a nozzle outlet and a plunger bore, and further has a prime spill port and an idle stability port that open to the plunger bore. A hydraulic means for pressurizing fuel in the nozzle chamber includes a plunger mounted to reciprocate in the plunger bore between a retracted position and an advanced position. A portion of the plunger bore and plunger define a fuel pressurization chamber. A needle valve member is mounted to reciprocate in the nozzle chamber between an open position in which the nozzle outlet is open and a closed position in which the nozzle outlet is closed. A portion of the plunger blocks the prime spill port when the plunger is in its retracted position. A different portion of the plunger blocks the idle stability port when the plunger is in its retracted position. The prime spill port opens to the fuel pressurization chamber over part of the plunger stroke between its retracted position and its advanced position. The idle stability port opens to the fuel pressurization chamber over a different part of the plunger stroke between its retracted position and its advanced position. The prime spill port has a relatively unrestricted flow area, whereas the idle stability port has a relatively restricted flow area about equal to that of the nozzle outlet.
摘要翻译：液压致动燃料喷射器包括喷射器主体，其具有通向喷嘴出口和柱塞孔的喷嘴室，并且还具有向柱塞孔打开的主溢出口和空闲稳定性端口。用于对喷嘴室中的燃料进行加压的液压装置包括安装成在缩回位置和前进位置之间在柱塞孔中往复运动的柱塞。柱塞孔和柱塞的一部分限定了燃料加压室。针阀构件安装成在喷嘴室中在喷嘴出口打开的打开位置和喷嘴出口关闭的关闭位置之间往复运动。当柱塞处于其缩回位置时，柱塞的一部分堵塞主溢出口。当柱塞处于其缩回位置时，柱塞的不同部分阻挡空转稳定性端口。主溢出口在其缩回位置和其前进位置之间的柱塞行程的一部分上通向燃料加压室。怠速稳定性口在其缩回位置和其前进位置之间的柱塞行程的不同部分上向燃料加压室开口。主泄漏口具有相对不受限制的流动面积，而空闲稳定性端口具有大约等于喷嘴出口的相对受限的流动面积。

3. 发明授权

US6009856A Fuel injector isolation 失效
标题翻译：燃油喷射器隔离
公开(公告)号：US6009856A
公开(公告)日：2000-01-04
申请号：US85550
申请日：1998-05-27
申请人： Ralph A. Smith, III , Mike Youakim
发明人： Ralph A. Smith, III , Mike Youakim
IPC分类号： F02M61/14 , F02M61/16 , F02M37/04
CPC分类号： F02M61/14 , F02M61/16 , F02M61/168
摘要： Fuel injectors used in present day applications are normally requiring high pressure injection, short injection times and split or modified injection. Thus, this type of injection inherently produces an excess of noise. The present fuel injector assembly (22) overcomes the above deficiencies by controlling the noise emitted from a fuel injector (33). For example, as an actuation system (27) operates the fuel injector (33) the noise created by the opening and closing of the fuel injector (33) is absorbed within an isolator (34). As the fuel injector assembly (22) is installed, the fuel injector assembly (22) is positioned within a bore (26) with the fuel injector assembly being in a second position (29). And, a plurality of fasteners (28) are tightened to a predetermined value moving the fuel injector assembly (22) into a first position (24). Additionally, the fuel injector assembly (22) remains seated with respect to a cylinder (14) as the isolation material of the isolator (34) is biased positioning the fuel injector assembly (22) into the first position (24).
摘要翻译：目前使用的燃油喷射器通常需要高压注射，短注射时间和分流或修改注射。因此，这种类型的注入固有地产生过量的噪声。本燃料喷射器组件（22）通过控制从燃料喷射器（33）发出的噪声来克服上述缺点。例如，当致动系统（27）操作燃料喷射器（33）时，燃料喷射器（33）的打开和关闭产生的噪声被吸收在隔离器（34）内。当燃料喷射器组件（22）被安装时，燃料喷射器组件（22）定位在孔（26）内，燃料喷射器组件处于第二位置（29）。并且，多个紧固件（28）被紧固到将燃料喷射器组件（22）移动到第一位置（24）的预定值。此外，随着隔离器（34）的隔离材料被偏压将燃料喷射器组件（22）定位到第一位置（24）中，燃料喷射器组件（22）相对于气缸（14）保持定位。

4. 发明授权

US5992768A Fluid seal for cyclic high pressures within a fuel injector 失效
标题翻译：燃油喷射器内循环高压的流体密封
公开(公告)号：US5992768A
公开(公告)日：1999-11-30
申请号：US986919
申请日：1997-12-08
申请人： David J. Beatty , Ralph A. Smith, III
发明人： David J. Beatty , Ralph A. Smith, III
IPC分类号： F02M57/02 , F02M59/44 , F02M61/16 , F02M61/00
CPC分类号： F02M57/02 , F02M59/442 , F02M61/16
摘要： A plunger and barrel assembly includes a barrel that defines a plunger bore. A plunger having a pressure face end and a side surface is positioned in the plunger bore and moveable between an advanced position and a retracted position. An O-ring is in contact with the side surface of the plunger and the plunger bore. At least one of the plunger and the barrel define a receiver volume that opens into the plunger bore. A compressible member is positioned in the receiver volume.
摘要翻译：柱塞和筒组件包括限定柱塞孔的筒体。具有压力面端和侧面的柱塞定位在柱塞孔中并且可在先进位置和缩回位置之间移动。 O形环与柱塞和柱塞孔的侧表面接触。柱塞和筒体中的至少一个限定了通向柱塞孔的接收器体积。可压缩构件位于接收器体积中。

5. 发明授权

US06684859B2 Fuel injector tappet retention mechanism 失效
标题翻译：燃油喷射器挺杆保持机构
公开(公告)号：US06684859B2
公开(公告)日：2004-02-03
申请号：US10121741
申请日：2002-04-12
申请人： Matthew A. Bredesen , Daniel R. Ibrahim , Ralph A. Smith, III
发明人： Matthew A. Bredesen , Daniel R. Ibrahim , Ralph A. Smith, III
IPC分类号： F02M5502
CPC分类号： F02M61/168 , F02B3/06 , F02M57/023
摘要： During assembly, shipping and handling before a mechanically-actuated fuel injector is installed into an internal combustion engine, the fuel injector tappet often accidentally disconnects from the fuel injector body. This separation of the tappet from the fuel injector body is caused by a force placed upon the tappet by a biasing means, such as a spring, that pushes the tappet away from the injector body. The fuel injector of the present application solves this problem through the interaction of a retention clip, a retention opening in the fuel injector body, and a retention slot in the fuel injector tappet. The retention clip has a body and a protrusion. The retention clip body is contained within the fuel injector body, and the protrusion extends through the retention opening and into the retention slot. After it is assembled, the fuel injector of the present application remains connected during shipping and handling and permits easy installation into an internal combustion engine.
摘要翻译：在机械致动的燃料喷射器安装到内燃机中之前的组装，运输和处理期间，燃料喷射器挺杆经常意外地与燃料喷射器主体断开。挺杆与燃料喷射器主体的这种分离是通过由诸如弹簧的偏置装置施加在挺杆上的力引起的，其将推杆推离喷射器主体。本申请的燃料喷射器通过保持夹，燃料喷射器主体中的保持开口和燃料喷射器挺杆中的保持狭槽的相互作用来解决这个问题。保持夹具有主体和突起。保持夹主体容纳在燃料喷射器主体内，并且突起延伸穿过保持开口并进入保持槽。在组装之后，本申请的燃料喷射器在运输和处理期间保持连接，并且允许容易地安装到内燃机中。

6. 发明授权

US6145805A Liquid control valve assembly with local damping and hydraulically actuated fuel injector using same 失效
标题翻译：具有局部阻尼和液压致动燃油喷射器的液体控制阀组件
公开(公告)号：US6145805A
公开(公告)日：2000-11-14
申请号：US379086
申请日：1999-08-23
申请人： Ralph A. Smith, III , Steven Y. Tian
发明人： Ralph A. Smith, III , Steven Y. Tian
IPC分类号： F02M57/02 , F02M59/10 , F02M59/46 , F02M63/00 , F16K31/00
CPC分类号： F02M59/105 , F02M57/025 , F02M59/466 , F02M2200/304
摘要： A hydraulically actuated fuel injector comprises a valve body and a stepped valve member. The valve body has a wide bore portion and a narrow bore portion. The stepped valve member has a wide member section and a narrow member section. The wide member section is slidably disposed in the wide bore portion and defines a first diametrical clearance therebetween. The narrow member section and the wide bore portion define a damping chamber therebetween that is wider than the first diametrical clearance. The stepped valve member is slidable between a first position at which the damping chamber is substantially fluidly open to a low pressure hydraulic fluid reservoir, and a second position at which a fractional portion of the narrow member section is slidably disposed within a portion of the narrow bore portion defining a second diametrical clearance therebetween that is less wide than the damping chamber and substantially restricts fluid communication between the damping chamber and the reservoir.
摘要翻译：液压致动燃料喷射器包括阀体和阶梯阀构件。阀体具有宽孔部分和窄孔部分。阶梯式阀构件具有宽的构件部分和窄的构件部分。宽构件部分可滑动地设置在宽孔部分中并且在其间限定第一直径间隙。窄构件部分和宽孔部分在其之间限定比第一直径间隙宽的阻尼室。阶梯式阀构件可在第一位置和第二位置之间滑动，第一位置在该第一位置和第二位置之间，该第一位置在该第一位置处阻尼室基本上与低压液压流体储存器开放;第二位置，该窄构件部分的一部分可滑动地设置在狭窄部分的一部分内孔部分限定其间的第二直径间隙，其宽度小于阻尼室，并且基本上限制阻尼室和储存器之间的流体连通。

7. 发明授权

US6119959A Fuel injector with controlled spill to produce split injection 失效
标题翻译：燃油喷射器具有控制溢出以产生分流喷射
公开(公告)号：US6119959A
公开(公告)日：2000-09-19
申请号：US247487
申请日：1999-02-10
申请人： Ralph A. Smith, III , Steven Y. Tian
发明人： Ralph A. Smith, III , Steven Y. Tian
IPC分类号： F02M45/06 , F02M57/02 , F02M47/02
CPC分类号： F02M45/066 , F02M57/025
摘要： An injector body defines a fuel pressurization chamber, a spill passage, a stop volume and a nozzle outlet. Positioned within the injector body is a plunger which is movable between a retracted position and an advanced position. The plunger opens the spill passage to the fuel pressurization chamber over a portion of the distance between the retracted and advanced positions. The injector body also contains a needle valve member which includes a closing hydraulic surface that is exposed to fluid pressure in the stop volume. The stop volume is pressure coupled to the spill passage.
摘要翻译：喷射器主体限定燃料加压室，溢流通道，停止容积和喷嘴出口。位于注射器主体内的是可在缩回位置和前进位置之间移动的柱塞。柱塞在缩回位置和前进位置之间的距离的一部分上打开到燃料加压室的溢流通道。喷射器主体还包括针阀构件，其包括暴露于停止体积中的流体压力的关闭液压表面。停止体积是压力耦合到溢出通道。

8. 发明授权

US06742728B2 Electrical actuator subassembly with external threads and fuel injector using same 有权
标题翻译：具有外螺纹的电子执行器组件和使用相同的燃油喷射器
公开(公告)号：US06742728B2
公开(公告)日：2004-06-01
申请号：US09927815
申请日：2001-08-10
申请人： Ralph A. Smith, III , Gregory W. Hefler , Clifford E. Cotton , Richard H. Holtman
发明人： Ralph A. Smith, III , Gregory W. Hefler , Clifford E. Cotton , Richard H. Holtman
IPC分类号： F02M3900
CPC分类号： F02M59/468 , F02M57/025 , F02M59/466
摘要： An electrical actuator subassembly, preferably for use in a fuel injector, includes an externally threaded ferromagnetic metallic body, an internally threaded collar, an electrical actuator, an electrical connector, and a plastic cap. In one embodiment, the electrical actuator is a solenoid, while a piezoelectric actuator is used in a second embodiment. The electrical actuator directly controls a pilot valve member positioned between the metallic body and the injector body, and a needle valve which opens or closes a nozzle outlet at the bottom of the injector. The electrical actuator subassembly is attached to a fuel injector body by mating the external threads of the metallic body to the internal threads of the collar. The collar is attached to the injector body with a groove and snap ring configuration.
摘要翻译：优选用于燃料喷射器的电动执行器子组件包括外螺纹铁磁金属体，内螺纹套环，电致动器，电连接器和塑料盖。在一个实施例中，电致动器是螺线管，而在第二实施例中使用压电致动器。电致动器直接控制定位在金属体和喷射器主体之间的先导阀构件，以及打开或关闭喷射器底部的喷嘴出口的针阀。电致动器子组件通过将金属体的外螺纹与套环的内螺纹相配合而连接到燃料喷射器主体。套环通过凹槽和卡环配置连接到喷射器主体。

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