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1. 发明授权

US5417403A Captured ring and threaded armature solenoid valve 失效
标题翻译：捕获环和螺纹电枢电磁阀
公开(公告)号：US5417403A
公开(公告)日：1995-05-23
申请号：US181461
申请日：1994-01-14
申请人： Rodney M. Shurman , Harry L. Wilson , David M. Rix , John D. Crofts , Brett I. Barnhart , Alan B. Slachter
发明人： Rodney M. Shurman , Harry L. Wilson , David M. Rix , John D. Crofts , Brett I. Barnhart , Alan B. Slachter
IPC分类号： F02M59/46 , F16K31/06 , H01F7/16
CPC分类号： F16K31/0665 , F02M59/466 , H01F7/1638
摘要： A solenoid valve is disclosed including a valve housing having a central bore and a valve seat, a valve element movable between an open position allowing fluid to pass through said valve seat and a closed position in sealing engagement with said valve seat, a valve operator for moving the valve element between the open and closed positions including a reciprocating armature plunger member extending through the bore and an armature secured to the armature plunger, a valve adjustment for adjustably mounting the valve element relative to the valve operator for permitting adjustment to within an acceptable tolerance of a predetermined distance between the valve element and the valve seat when the valve element is in its open position without creating a path of leakage when the valve element is in its closed position. A valve adjustment securing mechanism is provided for securing the armature to an armature end of the armature plunger and a load bearing insert is secured within the armature for bearing a load exerted by the armature plunger during reciprocation of the valve element to allow for surface contact during the valve operation without surface wear.
摘要翻译：公开了一种电磁阀，其包括具有中心孔和阀座的阀壳体，可在允许流体通过所述阀座的打开位置和与所述阀座密封接合的关闭位置之间移动的阀元件的阀元件，将阀元件在打开和关闭位置之间移动，包括延伸穿过孔的往复式衔铁柱塞构件和固定到衔铁柱塞的衔铁;用于可调节地安装阀元件相对于阀操作器的阀调节器，当阀元件处于其关闭位置时，当阀元件处于其打开位置而不产生泄漏路径时，阀元件和阀座之间的预定距离的公差。提供了一种阀调节固定机构，用于将电枢固定到电枢柱塞的电枢端，并且承载插入件被固定在电枢内，用于在阀元件往复运动期间承受由电枢柱塞施加的负载，以允许在阀元件阀门操作无表面磨损。

2. 发明授权

US5467963A Two-piece collet adjusting nut for a fuel injector solenoid valve 失效
标题翻译：用于燃油喷射器电磁阀的两件式夹头调节螺母
公开(公告)号：US5467963A
公开(公告)日：1995-11-21
申请号：US227126
申请日：1994-04-13
申请人： John D. Crofts , Rodney M. Shurman , Gayle L. Wheeler
发明人： John D. Crofts , Rodney M. Shurman , Gayle L. Wheeler
IPC分类号： F02M57/02 , F02M59/46 , F16K31/06
CPC分类号： F02M59/466 , F02M57/024
摘要： A solenoid valve is disclosed including a valve housing having a central bore and a valve seat, a valve element movable between an open position allowing fluid to pass through said valve seat and a closed position in sealing engagement with said valve seat, a valve operator for moving the valve element between the open and closed positions including a reciprocating armature plunger member extending through the bore and an armature secured to the armature plunger, and the valve seat when the valve element is in its open position without creating a path of leakage when the valve element is in its closed position. The armature plunger includes a threaded-end portion which extends from the valve seat for receiving a valve assembly which is provided with a top portion forming a sealing face and a bottom portion having a central opening adapted to receive the threaded end portion of the armature plunger. The valve stroke and locking mechanism includes a two-piece collet adjusting nut assembly having a collet nut which threadingly engages the threaded end portion of armature plunger and a closed end acorn cap which is pressed onto the collet nut creating an interference fit between the collet nut and the threaded end portion of the armature plunger due to the radial pressure exerted by the acorn cap.
摘要翻译：公开了一种电磁阀，其包括具有中心孔和阀座的阀壳体，可在允许流体通过所述阀座的打开位置和与所述阀座密封接合的关闭位置之间移动的阀元件的阀元件，在所述打开和关闭位置之间移动所述阀元件，包括延伸穿过所述孔的往复电枢柱塞构件和固定到所述衔铁柱塞的电枢以及当所述阀元件处于其打开位置时所述阀座，阀元件处于其关闭位置。电枢柱塞包括从阀座延伸以接收阀组件的螺纹端部分，阀组件设置有形成密封面的顶部部分和底部部分，底部部分具有适于容纳电枢柱塞的螺纹端部的中心开口。阀行程和锁定机构包括两件式的夹头调节螺母组件，其具有螺纹接合衔铁柱塞的螺纹端部的夹头螺母和压在套管螺母上的封闭端橡子盖，在夹头螺母之间形成过盈配合以及由于由橡子盖施加的径向压力的电枢柱塞的螺纹端部。

3. 发明授权

US09151289B2 Fuel pump 有权
标题翻译：燃油泵
公开(公告)号：US09151289B2
公开(公告)日：2015-10-06
申请号：US12195550
申请日：2008-08-21
申请人： John D. Crofts , Scott R. Simmons , Wesley R. Thayer , Bela Doszpoly , David M. Rix , Anthony A. Shaull , David L. Buchanan
发明人： John D. Crofts , Scott R. Simmons , Wesley R. Thayer , Bela Doszpoly , David M. Rix , Anthony A. Shaull , David L. Buchanan
IPC分类号： F04B53/02 , F04B53/14 , F02M59/10 , F04B1/04 , F02M59/44
CPC分类号： F04B53/162 , F02M37/043 , F02M59/102 , F02M59/442 , F04B1/0408 , F04B1/0421 , F04B1/0448 , F04B15/02 , F04B19/22 , F04B53/04 , F04B53/08 , F04B53/10 , F04B53/14 , F04B53/143 , F04B53/18
摘要： A fuel pump is disclosed wherein a substantially cylindrical plunger bore is provided with an annular drain groove fluidically coupled to a drain duct. A pump plunger is driven by a drive system located in a separate mechanical compartment that holds a reservoir of lubricating oil. An annular seal is provided adjacent the drain groove substantially at the end of the bore and retained in position by a seal support. Exemplary embodiments provide the drain groove and seal as being positioned immediately adjacent one another so that the seal forms a lower wall of the drain groove.
摘要翻译：公开了一种燃料泵，其中基本上圆柱形的柱塞孔设置有流体连接到排水管的环形排水沟。泵柱塞由驱动系统驱动，该驱动系统位于容纳润滑油的单独的机械隔室中。环形密封件基本上在孔的端部附近设置在排水槽附近，并通过密封支撑件保持在适当位置。示例性实施例将排水沟和密封件设置成彼此紧邻地定位，使得密封件形成排水沟的下壁。

4. 发明授权

US5979789A Fuel injector with internal component load protection 失效
标题翻译：具有内部组件负载保护的燃油喷射器
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。

5. 发明授权

US5673853A Electromagnetic fuel injector control valve 失效
标题翻译：电磁燃油喷射器控制阀
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。

6. 发明授权

US06912998B1 Piezoelectric fuel injection system with rate shape control and method of controlling same 有权
标题翻译：具有速率形状控制的压电燃料喷射系统及其控制方法
公开(公告)号：US06912998B1
公开(公告)日：2005-07-05
申请号：US10796068
申请日：2004-03-10
申请人： Peter Rauznitz , John D. Crofts , Lester L. Peters
发明人： Peter Rauznitz , John D. Crofts , Lester L. Peters
IPC分类号： F02D41/20 , F02M51/06 , F02M51/00
CPC分类号： F02D41/2096 , F02D2041/2027 , F02D2041/2034 , F02M51/0603
摘要： A piezoelectric fuel injection system and a method of controlling same, the system including a piezoelectric fuel injector having a piezoelectric element, a power source adapted to provide power to the piezoelectric element to actuate the piezoelectric fuel injector, and a controller adapted to cyclically modulate power provide to the piezoelectric element by the power source during at least a portion of the injection event. The controller cyclically modulates the power between a predetermined first voltage and a predetermined second voltage that is less than the first voltage to control the rate of fuel injected by the piezoelectric fuel injector during the portion of the injection.
摘要翻译：一种压电燃料喷射系统及其控制方法，所述系统包括具有压电元件的压电式燃料喷射器，适于向所述压电元件提供动力以致动所述压电式燃料喷射器的动力源，以及适于循环调制功率的控制器在喷射事件的至少一部分期间通过电源向压电元件提供。控制器循环地调制预定的第一电压和小于第一电压的预定的第二电压之间的功率，以控制在注入部分期间由压电燃料喷射器喷射的燃料的速率。

7. 发明授权

US06595436B2 Proportional needle control injector 有权
公开(公告)号：US06595436B2
公开(公告)日：2003-07-22
申请号：US09850117
申请日：2001-05-08
申请人： Joseph Kirzhner , Lester Peters , John D. Crofts , Wayne Eckerle
发明人： Joseph Kirzhner , Lester Peters , John D. Crofts , Wayne Eckerle
IPC分类号： B05B108
CPC分类号： F02M61/167 , F02M51/0603 , F02M2200/702
摘要： The fuel injector includes a solid state actuator that operates through an actuator motion amplifying lever to directly control the needle valve motion. Hydraulic forces, which act along the axes of the needle valve and the motion amplifying lever, are compensated by using a control piston, or other biasing means, to reduce the required amplitude of the control current/voltage and to reduce the required strength of the spring biasing the needle valve closed. The fuel injector may also include a control fuel inlet that is separate from the injection fuel inlet port.

8. 发明授权

US5884848A Fuel injector with piezoelectric and hydraulically actuated needle valve 失效
标题翻译：具有压电和液压致动针阀的燃油喷射器
公开(公告)号：US5884848A
公开(公告)日：1999-03-23
申请号：US853592
申请日：1997-05-09
申请人： John D. Crofts , George L. Muntean
发明人： John D. Crofts , George L. Muntean
IPC分类号： F02M47/04 , F02M51/06 , F02M61/04 , F02M63/00 , F02M61/20
CPC分类号： F02M61/042 , F02M47/046 , F02M51/0603 , F02M51/061 , F02M51/0653 , F02M51/0657 , F02M2200/702
摘要： An improved fuel injector for providing precise control over injection timing, quantity and rate shape is provided which includes a piezoelectric actuator for compressing actuating fluid in an actuating fluid circuit which includes a fluid chamber positioned adjacent a needle valve element and fluidically separate from a fuel supply circuit for supplying high pressure fuel for injection. Actuating fluid pressure in the chamber acts on the needle valve element to initiate injection. A fuel pressure balancing device is provided for balancing the fuel pressure forces acting on the needle valve element while the element is in both the closed and open positions thereby permitting the piezoelectric actuator to more precisely and predictably control the rate of movement, and the extent of movement, of the needle valve element.
摘要翻译：提供了一种用于提供对喷射正时，数量和速率形状的精确控制的改进的燃料喷射器，其包括用于压缩致动流体回路中的致动流体的压电致动器，该致动流体回路包括邻近针阀元件定位并与燃料供给流体分离的流体室供给高压注射用燃料的回路。腔室中的致动流体压力作用在针阀元件上以开始注射。提供了一种燃料压力平衡装置，用于平衡作用在针阀元件上的燃料压力，同时元件处于闭合位置和打开位置，从而允许压电致动器更精确和可预测地控制运动速度，以及针阀元件的运动。

9. 发明授权

US06837221B2 Fuel injector with feedback control 失效
标题翻译：燃油喷射器带反馈控制
公开(公告)号：US06837221B2
公开(公告)日：2005-01-04
申请号：US10179017
申请日：2002-06-26
申请人： John D. Crofts , Arthur C. Truman, III , Jung-min C. Sung , Peter Rauznitz
发明人： John D. Crofts , Arthur C. Truman, III , Jung-min C. Sung , Peter Rauznitz
IPC分类号： F02M47/02 , F02M51/06 , F02M59/46 , F02M63/00 , F02M65/00 , F02M37/04
CPC分类号： F02M63/004 , F02M47/027 , F02M63/0026 , F02M63/0043 , F02M65/005 , F02M2200/28
摘要： An injector is provided which includes a nozzle valve element, a control volume, and an injection control valve including a control valve member for controlling fuel flow from the control volume so as to control nozzle valve movement. Importantly, the injector includes a nozzle valve lift detecting device for detecting nozzle valve lift and providing a nozzle valve element lift feedback signal. Feedback signals are improved and control valve member oscillations are minimized by positioning a valve seat associated with the control valve member a spaced distance from the control volume, positioning a drain orifice such that the nozzle valve element restricts flow through a drain circuit when in an open position and extending the control valve member from the valve seat to the control volume to form an end wall of the control volume.

10. 发明授权

US06253736B1 Fuel injector nozzle assembly with feedback control 有权
标题翻译：燃油喷嘴组件带反馈控制
公开(公告)号：US06253736B1
公开(公告)日：2001-07-03
申请号：US09371273
申请日：1999-08-10
申请人： John D. Crofts , Mark S. Cavanagh , Howard S. Savage
发明人： John D. Crofts , Mark S. Cavanagh , Howard S. Savage
IPC分类号： F02M3704
CPC分类号： F02M65/005 , F02D2041/2055 , F02D2200/063 , F02M47/027 , F02M63/0026
摘要： An injector is provided which includes a nozzle valve element, a control volume, and an injection control valve for controlling fuel flow from the control volume so as to control nozzle valve movement. Importantly, the injector includes a nozzle valve lift detecting device for detecting nozzle valve lift and providing a nozzle valve element lift feedback signal. In addition, an injection control valve member movement detecting device may be provided for detecting movement of the injection control valve member into open and/or closed positions and generating a control valve member position feedback signal. One or both of the feedback signals may be used for adjusting the timing and/or rate of opening of the injection control valve thereby controlling the timing and/or rate of opening of the nozzle valve element to control the timing and/or rate of fuel injection of subsequent injection events. The nozzle valve element lift detecting device includes positioning the injection control valve for contact by the nozzle valve element and a piezoelectric element for generating the feedback signal. A control device is used to process the feedback signal and adjust control of the injection control valve to achieve reduced emissions.
摘要翻译：提供了一种喷射器，其包括喷嘴阀元件，控制体积和用于控制来自控制体积的燃料流量以便控制喷嘴阀运动的喷射控制阀。重要的是，喷射器包括用于检测喷嘴阀升程并提供喷嘴阀元件提升反馈信号的喷嘴阀提升检测装置。另外，喷射控制阀构件移动检测装置可以用于检测喷射控制阀构件在打开和/或关闭位置的运动并产生控制阀构件位置反馈信号。反馈信号中的一个或两个可以用于调节喷射控制阀的打开的定时和/或速率，由此控制喷嘴阀元件的打开的正时和/或速率以控制燃料的正时和/或速率注射后续注射事件。喷嘴阀元件提升检测装置包括定位用于与喷嘴阀元件接触的喷射控制阀和用于产生反馈信号的压电元件。控制装置用于处理反馈信号并调节喷射控制阀的控制以实现减少排放。

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