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公开(公告)号：US20100282212A1
公开(公告)日：2010-11-11
申请号：US12437028
申请日：2009-05-07
申请人： Scott F. Shafer , Jeffrey DePayva , Daniel R. Puckett , Amy S. Johanson , Kenneth C. Adams , Benjamin R. Tower , Jason Z. Li , Jayaraman Venkataraghavan , Michael D. Gerstner , Michael C. Long
发明人： Scott F. Shafer , Jeffrey DePayva , Daniel R. Puckett , Amy S. Johanson , Kenneth C. Adams , Benjamin R. Tower , Jason Z. Li , Jayaraman Venkataraghavan , Michael D. Gerstner , Michael C. Long
CPC分类号： F02M63/025 , F02D41/042 , F02D41/062 , F02D41/3863 , F02M63/0052 , F02M63/0054
摘要： A pressure relief valve includes a valve body having a valve seat fluidly positioned between an inlet and an outlet. A valve member is movable among a first position, a second position, and a third position. The valve member is in contact with the valve seat and fluidly blocks the inlet from the outlet at the first position. At the second position of the valve member, the inlet is fluidly connected to the outlet via a small flow area. The inlet is fluidly connected to the outlet via a large flow area when the valve member is at the third position. An electrical actuator is attached to the valve body and is operably coupled to move the valve member when energized. The valve member includes an opening hydraulic surface exposed to fluid pressure in the inlet when at the first position. A spring is operably positioned to bias the valve member toward the second position when the valve member is at the third position.
摘要翻译： 减压阀包括具有流体地定位在入口和出口之间的阀座的阀体。 阀构件可在第一位置，第二位置和第三位置之间移动。 阀构件与阀座接触并且在第一位置处从入口流体地阻挡入口。 在阀构件的第二位置处，入口通过小的流动面积流体地连接到出口。 当阀构件处于第三位置时，入口通过大的流动面积流体地连接到出口。 电致动器附接到阀体并且可操作地联接以在通电时移动阀构件。 阀构件包括当处于第一位置时暴露于入口中的流体压力的开口液压表面。 弹簧被可操作地定位成当阀构件处于第三位置时将阀构件朝向第二位置偏压。
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公开(公告)号：US08291889B2
公开(公告)日：2012-10-23
申请号：US12437028
申请日：2009-05-07
申请人： Scott F. Shafer , Jeffrey DePayva , Daniel R. Puckett , Amy S. Johanson , Kenneth C. Adams , Benjamin R. Tower , Jason Z. Li , Jayaraman Venkataraghavan , Michael D. Gerstner , Michael C. Long
发明人： Scott F. Shafer , Jeffrey DePayva , Daniel R. Puckett , Amy S. Johanson , Kenneth C. Adams , Benjamin R. Tower , Jason Z. Li , Jayaraman Venkataraghavan , Michael D. Gerstner , Michael C. Long
IPC分类号： F02M59/36
CPC分类号： F02M63/025 , F02D41/042 , F02D41/062 , F02D41/3863 , F02M63/0052 , F02M63/0054
摘要： A pressure relief valve includes a valve body having a valve seat fluidly positioned between an inlet and an outlet. A valve member is movable among a first position, a second position, and a third position. The valve member is in contact with the valve seat and fluidly blocks the inlet from the outlet at the first position. At the second position of the valve member, the inlet is fluidly connected to the outlet via a small flow area. The inlet is fluidly connected to the outlet via a large flow area when the valve member is at the third position. An electrical actuator is attached to the valve body and is operably coupled to move the valve member when energized. The valve member includes an opening hydraulic surface exposed to fluid pressure in the inlet when at the first position. A spring is operably positioned to bias the valve member toward the second position when the valve member is at the third position.
摘要翻译： 减压阀包括具有流体地定位在入口和出口之间的阀座的阀体。 阀构件可在第一位置，第二位置和第三位置之间移动。 阀构件与阀座接触并且在第一位置处从入口流体地阻挡入口。 在阀构件的第二位置处，入口通过小的流动面积流体地连接到出口。 当阀构件处于第三位置时，入口通过大的流动面积流体地连接到出口。 电致动器附接到阀体并且可操作地联接以在通电时移动阀构件。 阀构件包括当处于第一位置时暴露于入口中的流体压力的开口液压表面。 弹簧被可操作地定位成当阀构件处于第三位置时将阀构件朝向第二位置偏压。
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3.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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4.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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公开(公告)号：US08729995B2
公开(公告)日：2014-05-20
申请号：US12972869
申请日：2010-12-20
CPC分类号： F02M51/0625 , F02M47/027 , F02M51/061 , F02M51/0635 , F02M63/0015 , F02M63/0075 , H01F7/1638
摘要： In one aspect, a fuel injector includes an injector body that defines a fuel inlet, a drain outlet and a nozzle outlet. A direct operated check valve is positioned in the injector body and includes a needle valve member with an opening hydraulic surface exposed to fluid pressure in a nozzle supply passage, and a closing hydraulic surface exposed to fluid pressure in a needle control chamber. The needle valve member is movable between a first position at which the nozzle supply passage is blocked to the nozzle outlet, and a second position at which the nozzle supply passage is open to the nozzle outlet. A needle control valve is positioned in the injector body and includes a control valve member movable between a first position at which the needle control chamber is fluidly connected to the drain outlet, and a second position at which the needle control chamber is fluidly blocked to the drain outlet. A solenoid actuator is positioned in the injector body and includes a stator assembly and an armature assembly coupled to the control valve member. One of the stator assembly and the armature assembly includes a non-magnetic insert that moves into and out of contact with another of the stator assembly and the armature assembly at an energized position and a de-energized position, respectively.
摘要翻译： 一方面，燃料喷射器包括限定燃料入口，排水出口和喷嘴出口的喷射器主体。 直接操作的止回阀定位在喷射器主体中，并且包括具有在喷嘴供应通道中暴露于流体压力的开口液压表面的针阀构件以及在针控制室中暴露于流体压力的关闭液压表面。 针阀构件可以在喷嘴供给通道被阻塞到喷嘴出口的第一位置和喷嘴供给通道对喷嘴出口打开的第二位置之间移动。 针控制阀定位在喷射器主体中，并且包括控制阀构件，该控制阀构件可以在针控制室流体地连接到排水出口的第一位置和第二位置之间移动，在第二位置，针控制室被流体地封闭到 排水口。 螺线管致动器定位在喷射器主体中并且包括定子组件和联接到控制阀构件的电枢组件。 定子组件和电枢组件中的一个包括非磁性插入件，其分别在通电位置和断电位置分别进入和离开定子组件和电枢组件中的另一个。
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公开(公告)号：US20120153034A1
公开(公告)日：2012-06-21
申请号：US12972869
申请日：2010-12-20
CPC分类号： F02M51/0625 , F02M47/027 , F02M51/061 , F02M51/0635 , F02M63/0015 , F02M63/0075 , H01F7/1638
摘要： In one aspect, a fuel injector includes an injector body that defines a fuel inlet, a drain outlet and a nozzle outlet. A direct operated check valve is positioned in the injector body and includes a needle valve member with an opening hydraulic surface exposed to fluid pressure in a nozzle supply passage, and a closing hydraulic surface exposed to fluid pressure in a needle control chamber. The needle valve member is movable between a first position at which the nozzle supply passage is blocked to the nozzle outlet, and a second position at which the nozzle supply passage is open to the nozzle outlet. A needle control valve is positioned in the injector body and includes a control valve member movable between a first position at which the needle control chamber is fluidly connected to the drain outlet, and a second position at which the needle control chamber is fluidly blocked to the drain outlet. A solenoid actuator is positioned in the injector body and includes a stator assembly and an armature assembly coupled to the control valve member. One of the stator assembly and the armature assembly includes a non-magnetic insert that moves into and out of contact with another of the stator assembly and the armature assembly at an energized position and a de-energized position, respectively.
摘要翻译： 一方面，燃料喷射器包括限定燃料入口，排水出口和喷嘴出口的喷射器主体。 直接操作的止回阀定位在喷射器主体中，并且包括具有在喷嘴供应通道中暴露于流体压力的开口液压表面的针阀构件以及在针控制室中暴露于流体压力的关闭液压表面。 针阀构件可以在喷嘴供给通道被阻塞到喷嘴出口的第一位置和喷嘴供给通道对喷嘴出口打开的第二位置之间移动。 针控制阀定位在喷射器主体中，并且包括控制阀构件，该控制阀构件可以在针控制室流体地连接到排水出口的第一位置和第二位置之间移动，在第二位置，针控制室被流体地封闭到 排水口。 螺线管致动器定位在喷射器主体中并且包括定子组件和联接到控制阀构件的电枢组件。 定子组件和电枢组件中的一个包括非磁性插入件，其分别在通电位置和断电位置分别进入和离开定子组件和电枢组件中的另一个。
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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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8.发明授权Fuel injector having piezoelectric actuator with preload control element and method 失效具有预压控制元件和方法的压电致动器的燃油喷射器公开(公告)号：US07714483B2
公开(公告)日：2010-05-11
申请号：US12077640
申请日：2008-03-20
申请人： Amy M. Hess , Daniel R. Ibrahim , Stephen R. Lewis , Jayaraman Venkataraghavan , Shriprasad Lakhapati
发明人： Amy M. Hess , Daniel R. Ibrahim , Stephen R. Lewis , Jayaraman Venkataraghavan , Shriprasad Lakhapati
IPC分类号： H01L41/053 , H01L41/083
CPC分类号： H01L41/0536 , F02M47/027 , F02M51/0603 , F02M61/167 , H01L41/083
摘要： A fuel injector includes a piezoelectric actuator subassembly having a casing and a piezoelectric element disposed within the casing. The piezoelectric element has an operating temperature range and includes a thermally contractive material having a negative thermal expansion coefficient over a second temperature range overlapping with the operating temperature range. A preload control element is coupled with the piezoelectric element and includes a thermally expansive material having a positive thermal expansion coefficient over the second temperature range. The preload control element maintains a constant preload on the piezoelectric element over a wide temperature range to inhibit temperature induced variability in operation, and can axially lengthen in opposition to axial shortening of the piezoelectric element, responsive to a temperature increase.
摘要翻译： 燃料喷射器包括具有壳体和设置在壳体内的压电元件的压电致动器子组件。 压电元件具有工作温度范围，并且包括在与工作温度范围重叠的第二温度范围内具有负热膨胀系数的热收缩材料。 预压控制元件与压电元件耦合，并且包括在第二温度范围内具有正热膨胀系数的热膨胀材料。 预压控制元件在宽的温度范围内在压电元件上保持恒定的预载荷，以防止温度引起的操作变化，并且可以响应于温度升高而轴向地延长与压电元件的轴向缩短相反。
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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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