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1.发明申请公开(公告)号：US20090140072A1
公开(公告)日：2009-06-04
申请号：US11998642
申请日：2007-11-30
CPC分类号： F02M63/0026 , F02M47/027 , F02M51/005 , F02M61/205 , F02M63/004 , F02M63/0045 , H01L41/053 , H01L41/0536
摘要： A piezoelectrically actuated device includes a body, a valve disposed within the body and an actuator for the valve, the actuator including a casing coupled with the body and a piezoelectric element disposed within the casing. The actuator further includes a multi-function spring applying a preloading force to the piezoelectric element. The multi-function spring includes a first segment having a piston configured to translate a motion of the piezoelectric element during operation of the actuator, a second segment having at least one flexural element and a third segment having a first set of threads. The first set of threads is engaged with a second set of threads of the actuator and maintains the second segment in a tension state which corresponds with the preloading force.
摘要翻译： 压电致动装置包括主体，设置在主体内的阀和用于阀的致动器，致动器包括与主体联接的壳体和设置在壳体内的压电元件。 致动器还包括向压电元件施加预加载力的多功能弹簧。 多功能弹簧包括第一段，其具有构造成在致动器的操作期间平移压电元件的运动的活塞，具有至少一个弯曲元件的第二段和具有第一组螺纹的第三段。 第一套螺纹与致动器的第二组螺纹接合，并将第二段保持在与预紧力对应的张紧状态。
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2.发明授权公开(公告)号：US08100346B2
公开(公告)日：2012-01-24
申请号：US11998642
申请日：2007-11-30
IPC分类号： B05B1/08
CPC分类号： F02M63/0026 , F02M47/027 , F02M51/005 , F02M61/205 , F02M63/004 , F02M63/0045 , H01L41/053 , H01L41/0536
摘要： A piezoelectrically actuated device includes a body, a valve disposed within the body and an actuator for the valve, the actuator including a casing coupled with the body and a piezoelectric element disposed within the casing The actuator further includes a multi-function spring applying a preloading force to the piezoelectric element. The multi-function spring includes a first segment having a piston configured to translate a motion of the piezoelectric element during operation of the actuator, a second segment having at least one flexural element and a third segment having a first set of threads. The first set of threads is engaged with a second set of threads of the actuator and maintains the second segment in a tension state which corresponds with the preloading force.
摘要翻译： 压电致动装置包括主体，设置在主体内的阀和用于阀的致动器，致动器包括与主体联接的壳体和设置在壳体内的压电元件。致动器还包括施加预加载的多功能弹簧 对压电元件的力。 多功能弹簧包括第一段，其具有构造成在致动器的操作期间平移压电元件的运动的活塞，具有至少一个弯曲元件的第二段和具有第一组螺纹的第三段。 第一套螺纹与致动器的第二组螺纹接合，并将第二段保持在与预紧力对应的张紧状态。
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公开(公告)号：US07997145B2
公开(公告)日：2011-08-16
申请号：US12786575
申请日：2010-05-25
IPC分类号： G01B7/16
CPC分类号： H01L41/0533 , F02M2200/21 , H01L41/083 , Y10T29/42
摘要： A system for preloading piezoelectric actuators includes a fixture, a preloading mechanism configured to apply a mechanical force to a piezoelectric element supported by the fixture, and a sensor configured to sense an electrical property induced by the mechanical force in an electrical circuit having the piezoelectric element therein. A control device is coupled with the sensor and configured to generate a signal based on the sensed electrical property. A method of setting or testing preload includes applying a mechanical force to a piezoelectric element, and correlating an electrical property induced by the mechanical force with a magnitude of the mechanical force. Closed loop control allows preload to be set highly accurately.
摘要翻译： 一种用于预压压电致动器的系统包括固定装置，配置成将机械力施加到由固定装置支撑的压电元件的预加载机构，以及构造成感测由具有压电元件的电路中的机械力引起的电特性的传感器 其中。 控制装置与传感器耦合并被配置为基于感测到的电气特性产生信号。 设置或测试预载荷的方法包括对压电元件施加机械力，并将由机械力引起的电特性与机械力的大小相关联。 闭环控制允许高精度地设定预载荷。
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公开(公告)号：US20100275423A1
公开(公告)日：2010-11-04
申请号：US12786575
申请日：2010-05-25
IPC分类号： H01L41/22
CPC分类号： H01L41/0533 , F02M2200/21 , H01L41/083 , Y10T29/42
摘要： A system for preloading piezoelectric actuators includes a fixture, a preloading mechanism configured to apply a mechanical force to a piezoelectric element supported by the fixture, and a sensor configured to sense an electrical property induced by the mechanical force in an electrical circuit having the piezoelectric element therein. A control device is coupled with the sensor and configured to generate a signal based on the sensed electrical property. A method of setting or testing preload includes applying a mechanical force to a piezoelectric element, and correlating an electrical property induced by the mechanical force with a magnitude of the mechanical force. Closed loop control allows preload to be set highly accurately.
摘要翻译： 一种用于预压压电致动器的系统包括固定装置，配置成将机械力施加到由固定装置支撑的压电元件的预加载机构，以及构造成感测由具有压电元件的电路中的机械力引起的电特性的传感器 其中。 控制装置与传感器耦合并被配置为基于感测到的电气特性产生信号。 设置或测试预载荷的方法包括对压电元件施加机械力，并将由机械力引起的电特性与机械力的大小相关联。 闭环控制允许高精度地设定预载荷。
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公开(公告)号：US07765877B2
公开(公告)日：2010-08-03
申请号：US11998531
申请日：2007-11-30
IPC分类号： G01B7/16
CPC分类号： H01L41/0533 , F02M2200/21 , H01L41/083 , Y10T29/42
摘要： A system for preloading piezoelectric actuators includes a fixture, a preloading mechanism configured to apply a mechanical force to a piezoelectric element supported by the fixture, and a sensor configured to sense an electrical property induced by the mechanical force in an electrical circuit having the piezoelectric element therein. A control device is coupled with the sensor and configured to generate a signal based on the sensed electrical property. A method of setting or testing preload includes applying a mechanical force to a piezoelectric element, and correlating an electrical property induced by the mechanical force with a magnitude of the mechanical force. Closed loop control allows preload to be set highly accurately.
摘要翻译： 一种用于预压压电致动器的系统包括固定装置，配置成将机械力施加到由固定装置支撑的压电元件的预加载机构，以及构造成感测由具有压电元件的电路中的机械力引起的电特性的传感器 其中。 控制装置与传感器耦合并被配置为基于感测到的电气特性产生信号。 设置或测试预载荷的方法包括对压电元件施加机械力，并将由机械力引起的电特性与机械力的大小相关联。 闭环控制允许高精度地设定预载荷。
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公开(公告)号：US20090140610A1
公开(公告)日：2009-06-04
申请号：US11998531
申请日：2007-11-30
IPC分类号： G01L1/00 , G01L1/16 , H01L41/113
CPC分类号： H01L41/0533 , F02M2200/21 , H01L41/083 , Y10T29/42
摘要： A system for preloading piezoelectric actuators includes a fixture, a preloading mechanism configured to apply a mechanical force to a piezoelectric element supported by the fixture, and a sensor configured to sense an electrical property induced by the mechanical force in an electrical circuit having the piezoelectric element therein. A control device is coupled with the sensor and configured to generate a signal based on the sensed electrical property. A method of setting or testing preload includes applying a mechanical force to a piezoelectric element, and correlating an electrical property induced by the mechanical force with a magnitude of the mechanical force. Closed loop control allows preload to be set highly accurately.
摘要翻译： 一种用于预压压电致动器的系统包括：固定装置，被配置为对由固定装置支撑的压电元件施加机械力的预加载机构;以及传感器，其构造成感测由具有压电元件的电路中的机械力引起的电特性 其中。 控制装置与传感器耦合并被配置为基于感测到的电气特性产生信号。 设置或测试预载荷的方法包括对压电元件施加机械力，并将由机械力引起的电特性与机械力的大小相关联。 闭环控制允许高精度地设定预载荷。
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7.发明授权Distributed stiffness biasing spring for actuator system and fuel injector using same 有权用于执行器系统的分布式刚度偏置弹簧和使用其的燃料喷射器公开(公告)号：US07950596B2
公开(公告)日：2011-05-31
申请号：US12215545
申请日：2008-06-27
申请人： Jay Venkataraghavan , Michael Long , Zhenlong Xu , Stephen Lewis
发明人： Jay Venkataraghavan , Michael Long , Zhenlong Xu , Stephen Lewis
CPC分类号： F02M47/027 , F02M61/20 , F02M2200/26 , H01L41/0536 , Y10T29/42
摘要： A fuel injector includes a fuel injector body defining a fuel inlet and at least one fuel outlet, a valve having a first valve state and a second valve state and an actuator for the valve. The fuel injector includes a biasing spring including a cylindrical rolled sheet having a first spring end, a second spring end and defining a longitudinal center axis. The cylindrical rolled sheet is configured to change in length to bias the actuator toward the first actuator position and includes a helical seam located between the first spring end and a second spring end which has a shape adapted to reduce non-uniformity in a spring constant via distributing stiffness about the longitudinal center axis.
摘要翻译： 燃料喷射器包括限定燃料入口和至少一个燃料出口的燃料喷射器主体，具有第一阀状态和第二阀状态的阀以及用于阀的致动器。 燃料喷射器包括偏压弹簧，该偏压弹簧包括具有第一弹簧端部，第二弹簧端部并且限定纵向中心轴线的圆柱形轧制板材。 圆柱形轧制板被构造成在长度上改变以将致动器朝向第一致动器位置偏置，并且包括位于第一弹簧端和第二弹簧端之间的螺旋缝，其具有适于通过弹簧常数减小不均匀性的形状 围绕纵向中心轴分布刚度。
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8.发明申请Distributed stiffness biasing spring for actuator system and fuel injector using same 有权用于执行器系统的分布式刚度偏置弹簧和使用其的燃料喷射器公开(公告)号：US20090321668A1
公开(公告)日：2009-12-31
申请号：US12215545
申请日：2008-06-27
申请人： Jay Venkataraghavan , Michael Long , Zhenlong Xu , Stephen Lewis
发明人： Jay Venkataraghavan , Michael Long , Zhenlong Xu , Stephen Lewis
CPC分类号： F02M47/027 , F02M61/20 , F02M2200/26 , H01L41/0536 , Y10T29/42
摘要： A fuel injector includes a fuel injector body defining a fuel inlet and at least one fuel outlet, a valve having a first valve state and a second valve state and an actuator for the valve. The fuel injector includes a biasing spring including a cylindrical rolled sheet having a first spring end, a second spring end and defining a longitudinal center axis. The cylindrical rolled sheet is configured to change in length to bias the actuator toward the first actuator position and includes a helical seam located between the first spring end and a second spring end which has a shape adapted to reduce non-uniformity in a spring constant via distributing stiffness about the longitudinal center axis.
摘要翻译： 燃料喷射器包括限定燃料入口和至少一个燃料出口的燃料喷射器主体，具有第一阀状态和第二阀状态的阀以及用于阀的致动器。 燃料喷射器包括偏压弹簧，该偏压弹簧包括具有第一弹簧端部，第二弹簧端部并且限定纵向中心轴线的圆柱形轧制板材。 圆柱形轧制板被构造成在长度上改变以将致动器朝向第一致动器位置偏置，并且包括位于第一弹簧端和第二弹簧端之间的螺旋缝，其具有适于通过弹簧常数减小不均匀性的形状 围绕纵向中心轴分布刚度。
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公开(公告)号：US20110220064A1
公开(公告)日：2011-09-15
申请号：US12720455
申请日：2010-03-09
申请人： Dianqi Fang , Lin Zhang , Stephen Robert Lewis , Zhenlong Xu , Avinash R. Manubolu , Shriprasad G. Lakhapati , Christopher D. Hanson
发明人： Dianqi Fang , Lin Zhang , Stephen Robert Lewis , Zhenlong Xu , Avinash R. Manubolu , Shriprasad G. Lakhapati , Christopher D. Hanson
CPC分类号： F02M47/027 , F02M45/12 , F02M63/0036
摘要： A common rail single fluid injection system including fuel injectors with the ability to produce multiple injection rate shapes. This is accomplished by including auxiliary filling orifices which selectively provide pressurized fluid to the check needle control chamber during injection events. In so doing, the speed and movement of the check needle is manipulated and differing injection rates may be achieved.
摘要翻译： 一种共轨单流体喷射系统，包括具有产生多个喷射速率形状的能力的燃料喷射器。 这通过包括在注射事件期间向检查针控制室选择性地提供加压流体的辅助填充孔来实现。 在这样做时，检查针的速度和移动被操纵并且可以实现不同的注射速率。
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10.发明申请Fuel injector having integral body guide and nozzle case for pressure containment 有权燃油喷射器具有一体式导向件和用于压力容纳的喷嘴壳体公开(公告)号：US20100077994A1
公开(公告)日：2010-04-01
申请号：US12286023
申请日：2008-09-26
IPC分类号： F02M51/06
CPC分类号： F02M61/168 , F02M47/027 , F02M61/12 , F02M2200/8076
摘要： A fuel injector includes a body piece that defines a nozzle supply passage and a chamber in fluid communication therewith and configured to contain a fluid pressure within the fuel injector. The body piece has a threaded segment and a second, unthreaded segment that includes an outer surface of the fuel injector. A tip piece is clamped via a clamping piece to the body piece to form a fluid seal therewith, and a needle check extends within the body piece and the tip piece. The body piece is configured to contain fluid pressures, for example up to and exceeding 200 MPa, and has a wall thickness between the chamber and the unthreaded segment that is linked to a fluid pressure of fuel passing through the chamber. The fuel injector is configured via integrating portions of a nozzle case and a body guide to contain the extremely high fuel pressures.
摘要翻译： 燃料喷射器包括主体部件，其限定喷嘴供给通道和与其流体连通的室，并且构造成在燃料喷射器内容纳流体压力。 主体部件具有螺纹段和包括燃料喷射器的外表面的第二无螺纹段。 尖端件通过夹紧件夹紧到主体件上以与其形成流体密封，针检查件在主体件和尖端件内延伸。 主体构造成包含流体压力，例如高达和超过200MPa，并且在腔室和无螺纹段之间具有与通过腔室的燃料的流体压力相关联的壁厚。 燃料喷射器通过集成喷嘴壳体和主体引导件的部分来构造以容纳极高的燃料压力。
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