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公开(公告)号：US6109542A
公开(公告)日：2000-08-29
申请号：US157389
申请日：1998-09-21
IPC分类号： F02M47/02
CPC分类号： F02M47/027
摘要： A servo-controlled fuel injector is provided which includes a leakage limiting valve device for limiting the quantity of high pressure fuel available for leakage into the combustion chamber in the event the closed nozzle valve element fails to sealingly engage its seat between injection events. The servo-controlled fuel injector includes a control volume positioned adjacent an outer end of the nozzle valve element, a control volume charge circuit for supplying fuel to the control volume, a drain circuit for draining fuel from the control volume to a low pressure drain and an injection control valve positioned along the drain circuit for controlling the flow through the drain circuit so as to cause reciprocal movement of the nozzle valve element. The leakage limiting valve is integrated into the fuel injector body and positioned along a fuel transfer passage to block the flow of high pressure fuel to a nozzle cavity between injection events. The leakage limiting valve may be a cylindrical valve element positioned between the nozzle valve element and the injection control valve. Alternatively, the leakage limiting valve may be in the form of an annular valve sleeve slidably mounted on one end of the nozzle valve element so as to position the control volume immediately adjacent the injection control valve thereby minimizing the trapped volume and thus the valve response time.
摘要翻译： 提供了一种伺服控制的燃料喷射器，其包括泄漏限制阀装置，用于在关闭喷嘴阀元件在喷射事件之间不能与其阀座密封接合的情况下，限制可用于泄漏到燃烧室中的高压燃料的量。 伺服控制的燃料喷射器包括邻近喷嘴阀元件的外端定位的控制体积，用于向控制体积供给燃料的控制体积充电电路，用于将燃料从控制容积排出到低压排水管的排水回路，以及 沿排水回路设置的喷射控制阀，用于控制通过排水回路的流动，从而引起喷嘴阀元件的往复运动。 泄漏限制阀被集成到燃料喷射器主体中并且沿着燃料传送通道定位，以阻止喷射事件之间的高压燃料流向喷嘴腔。 泄漏限制阀可以是位于喷嘴阀元件和喷射控制阀之间的圆柱形阀元件。 或者，泄漏限制阀可以是可滑动地安装在喷嘴阀元件的一端上的环形阀套的形式，以便将控制体积定位在紧邻喷射控制阀的位置，从而最小化被捕获的体积，从而使阀响应时间 。
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公开(公告)号：US08201543B2
公开(公告)日：2012-06-19
申请号：US12466026
申请日：2009-05-14
申请人： Corydon E. Morris , Bela Doszpoly , Gary L. Gant
发明人： Corydon E. Morris , Bela Doszpoly , Gary L. Gant
CPC分类号： F02M51/0603 , F02M63/0056 , F02M2200/704
摘要： A piezoelectric-actuated fuel injector for injecting fuel into a combustion chamber of an internal combustion engine is provided which includes a piezoelectric actuator movable to expand in a first direction and movable to contract in a second direction opposite the first direction, and a hydraulic link assembly disposed within said injector cavity. The hydraulic link assembly includes a hydraulic link barrel having an inner bore, a hydraulic link outer plunger positioned to slidably move in the inner bore, and a hydraulic link operatively connected to a needle valve to move the needle valve in the second direction toward the open position in response to movement of the piezoelectric actuator in the first direction. A hydraulic link inner plunger is attached to the needle valve and extends into a center bore of the hydraulic link outer plunger. Leakage control features and hydraulic link refill valves are also provided.
摘要翻译： 提供了一种用于将燃料喷射到内燃机的燃烧室中的压电致动燃料喷射器，其包括可沿第一方向膨胀并可沿与第一方向相反的第二方向收缩的压电致动器，以及液压连杆组件 设置在所述注射器腔内。 液压连杆组件包括具有内孔的液压连杆筒，定位成在内孔中可滑动地移动的液压连杆外柱塞，以及可操作地连接到针阀的液压连杆，以使第二方向上的针阀朝向打开 响应于压电致动器在第一方向上的运动的位置。 液压连杆内柱塞连接到针阀上并延伸到液压连杆外柱塞的中心孔中。 还提供泄漏控制功能和液压连杆补充阀。
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公开(公告)号：US07513242B2
公开(公告)日：2009-04-07
申请号：US11743956
申请日：2007-05-03
申请人： Corydon E. Morris
发明人： Corydon E. Morris
IPC分类号： F02M61/14
CPC分类号： F02M61/14 , F02M2200/858
摘要： A fuel injector assembly with injector seal retention includes a fuel injector body including an injector nozzle housing disposed at a distal end of the fuel injector body. The injector body is adapted with a grooved portion to securely capture an injector seal to prevent the loss of the injector seal during installation and/or removal of the fuel injector assembly into an engine cylinder head.
摘要翻译： 具有喷射器密封保持件的燃料喷射器组件包括燃料喷射器主体，其包括设置在燃料喷射器主体的远端处的喷射器喷嘴壳体。 喷射器主体适于具有凹槽部分以牢固地捕获喷射器密封件，以防止在将燃料喷射器组件安装和/或移除到发动机气缸盖中期间喷射器密封件的损失。
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公开(公告)号：US5666913A
公开(公告)日：1997-09-16
申请号：US654930
申请日：1996-05-29
CPC分类号： F02M59/102 , F01L13/0063 , F02D1/183
摘要： A cam follower lever assembly is provided which permits variable control of the timing of the beginning of operation of an engine component, i.e. fuel injector or engine valve. The cam follower lever includes a timing control lever and a force transmitting lever mounted for pivotal movement on a common pivot shaft. The timing control lever is also mounted for nonpivotal movement, relative to the pivot shaft, by a hydraulic actuation device permitting selective nonpivotal movement of the timing control lever relative to a cam's outer surface so as to selectively advance or retard the timing of, for example, fuel injection. The actuation device includes actuator cavities formed in the levers and a control valve arrangement. In one embodiment, a control valve is mounted in a cavity formed in the timing control lever.
摘要翻译： 提供了一种凸轮随动杠杆组件，其允许可变地控制发动机部件即燃料喷射器或发动机气门的操作开始的定时。 凸轮随动杠杆包括定时控制杆和安装用于在公共枢转轴上枢转运动的力传递杆。 定时控制杆还通过液压致动装置安装成相对于枢转轴的非枢转运动，该液压致动装置允许定时控制杆相对于凸轮的外表面的选择性非枢转运动，以便选择性地前进或延迟例如 ，燃油喷射。 致动装置包括形成在杠杆中的致动器空腔和控制阀装置。 在一个实施例中，控制阀安装在形成在定时控制杆中的空腔中。
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公开(公告)号：US20080271713A1
公开(公告)日：2008-11-06
申请号：US11743956
申请日：2007-05-03
申请人： Corydon E. Morris
发明人： Corydon E. Morris
IPC分类号： F02M61/14
CPC分类号： F02M61/14 , F02M2200/858
摘要： A fuel injector assembly with injector seal retention includes a fuel injector body including an injector nozzle housing disposed at a distal end of the fuel injector body. The injector body is adapted with a grooved portion to securely capture an injector seal to prevent the loss of the injector seal during installation and/or removal of the fuel injector assembly into an engine cylinder head.
摘要翻译： 具有喷射器密封保持件的燃料喷射器组件包括燃料喷射器主体，其包括设置在燃料喷射器主体的远端处的喷射器喷嘴壳体。 喷射器主体适于具有凹槽部分以牢固地捕获喷射器密封件，以防止在将燃料喷射器组件安装和/或移除到发动机气缸盖中期间喷射器密封件的损失。
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公开(公告)号：US4450783A
公开(公告)日：1984-05-29
申请号：US430899
申请日：1982-09-30
CPC分类号： F02D7/007 , F02M51/005 , F02B2275/14 , Y02T10/123
摘要： The disclosure illustrates an electronically controlled fuel pump in which a bypass valve regulates its output pressure to a predetermined level above a control pressure. A downstream throttling valve re-regulates the pressure to a predetermined level below a control pressure. The control pressure is established by an electro-hydraulic valve which is, in turn, fed with signals with a microprocessor to provide appropriate control. The use of the control pressure in effect causes a servo action and utilizes the pressure of the fuel to manipulate the valve and minimize the power requirement of the electro-hydraulic valve.
摘要翻译： 本公开示出了电子控制的燃料泵，其中旁路阀将其输出压力调节到高于控制压力的预定水平。 下游节流阀将压力重新调节到低于控制压力的预定水平。 控制压力由电动液压阀建立，电动液压阀又与微处理器馈送信号以提供适当的控制。 使用控制压力实际上引起伺服动作，并利用燃料的压力来操纵阀门并最小化电动液压阀的功率需求。
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公开(公告)号：US08479711B2
公开(公告)日：2013-07-09
申请号：US12797161
申请日：2010-06-09
申请人： Corydon E. Morris , Bela Doszpoly
发明人： Corydon E. Morris , Bela Doszpoly
IPC分类号： F02M51/06
CPC分类号： F02M51/0603
摘要： A piezoelectric-actuated fuel injector for injecting fuel into a combustion chamber of an internal combustion engine is provided which includes a piezoelectric actuator movable to expand in a first direction and movable to contract in a second direction opposite the first direction, and a hydraulic link assembly disposed within a nozzle cavity formed in a nozzle housing containing a nozzle valve element. The hydraulic link assembly is positioned close to the injector orifices to minimize needle valve element length and mass, thereby reducing seat impact forces and enhance response time. A refill valve operates to move into an open position to refill a hydraulic link chamber. An actuator power source operates to vary voltage to cause multiple injection pulses and to selectively maintain the voltage above a predetermined lower level between injection pulses to maintain the refill valve in a closed position to prevent refilling of the hydraulic link chamber.
摘要翻译： 提供了一种用于将燃料喷射到内燃机的燃烧室中的压电致动燃料喷射器，其包括可沿第一方向膨胀并可沿与第一方向相反的第二方向收缩的压电致动器，以及液压连杆组件 设置在形成在包含喷嘴阀元件的喷嘴壳体中的喷嘴腔内。 液压连杆组件靠近喷射器孔定位，以最大限度地减少针阀元件的长度和质量，从而减少座椅冲击力并增强响应时间。 再填充阀操作以移动到打开位置以重新填充液压连杆室。 致动器电源操作以改变电压以引起多个注入脉冲并且选择性地将电压保持在喷射脉冲之间的预定较低水平以保持再充填阀处于关闭位置，以防止重新注入液压连杆室。
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