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1. 发明授权

US07268473B2 Piezoelectric actuator 有权
标题翻译：压电执行器
公开(公告)号：US07268473B2
公开(公告)日：2007-09-11
申请号：US11146256
申请日：2005-06-06
申请人： Jean-Francois Berlemont
发明人： Jean-Francois Berlemont
IPC分类号： H01L41/083 , H01L41/047
CPC分类号： H01L41/083 , H01L41/0471 , H01L41/0472
摘要： The invention provides a piezoelectric actuator having a stack body comprising a plurality of piezoelectric elements, each element having a positive and negative electrode pair which are electrically isolated from one another by the piezoelectric elements, the electrode pairs being arranged in groups of one or more electrode pairs, each group having a conducting arrangement in electrical connection therewith. The piezoelectric actuator further comprises a distribution electrode arrangement for connecting the conducting arrangement to a power supply, in use, wherein the distribution electrode arrangement includes a fuse arrangement. In the event of a short circuit between electrodes of a pair within one of the groups, the fuse arrangement breaks the electrical connection between the power supply and the conducting arrangement.
摘要翻译：本发明提供一种压电致动器，其具有包括多个压电元件的堆叠体，每个元件具有通过压电元件彼此电隔离的正电极对和负电极对，电极对以一个或多个电极每组具有与其电连接的导电布置。压电致动器还包括用于在使用中将导电装置连接到电源的分配电极装置，其中分配电极装置包括熔丝装置。在一组内的一对电极之间短路的情况下，熔丝装置破坏电源和导电装置之间的电连接。

2. 发明申请

US20050269914A1 Piezoelectric actuator 有权
标题翻译：压电执行器
公开(公告)号：US20050269914A1
公开(公告)日：2005-12-08
申请号：US11146256
申请日：2005-06-06
申请人： Jean-Francois Berlemont
发明人： Jean-Francois Berlemont
IPC分类号： H01L41/04 , H01L41/047 , H01L41/083
CPC分类号： H01L41/083 , H01L41/0471 , H01L41/0472
摘要： The invention provides a piezoelectric actuator having a stack body comprising a plurality of piezoelectric elements, each element having a positive and negative electrode pair which are electrically isolated from one another by the piezoelectric elements, the electrode pairs being arranged in groups of one or more electrode pairs, each group having a conducting arrangement in electrical connection therewith. The piezoelectric actuator further comprises a distribution electrode arrangement for connecting the conducting arrangement to a power supply, in use, wherein the distribution electrode arrangement includes a fuse arrangement. In the event of a short circuit between electrodes of a pair within one of the groups, the fuse arrangement breaks the electrical connection between the power supply and the conducting arrangement.
摘要翻译：本发明提供一种压电致动器，其具有包括多个压电元件的堆叠体，每个元件具有通过压电元件彼此电隔离的正电极对和负电极对，电极对以一个或多个电极每组具有与其电连接的导电布置。压电致动器还包括用于在使用中将导电装置连接到电源的分配电极装置，其中分配电极装置包括熔丝装置。在一组内的一对电极之间短路的情况下，熔丝装置破坏电源和导电装置之间的电连接。

3. 发明授权

US07422005B2 System and method for operating a piezoelectric fuel injector 有权
标题翻译：用于操作压电燃料喷射器的系统和方法
公开(公告)号：US07422005B2
公开(公告)日：2008-09-09
申请号：US11805384
申请日：2007-05-22
申请人： Martin P Hardy , Christopher A Goat , Michael P Cooke , Andrew John Hargreaves , Jean-Francois Berlemont
发明人： Martin P Hardy , Christopher A Goat , Michael P Cooke , Andrew John Hargreaves , Jean-Francois Berlemont
IPC分类号： F02D41/20
CPC分类号： F02D41/2096 , F02D41/3809 , F02D2200/0602
摘要： A method of operating a fuel injector including a piezoelectric actuator having a stack of piezoelectric elements, comprises applying a discharge current (IDISCHARGE) to the actuator for a discharge period so to discharge the stack from a first differential voltage level across the stack to a second, lower differential voltage level across the stack so as to initiate an injection event, and applying a charge current (ICHARGE) to the actuator for a charge period (T3 to T4′) so as to charge the stack from the second differential voltage level to a third differential voltage level so as to terminate the injection event. The method includes determining at least one engine parameter (e.g. common rail pressure) of the injection event prior to applying the charge current (ICHARGE) to the actuator and selecting the third differential voltage level in dependence on the at least one engine parameter.
摘要翻译：一种操作燃料喷射器的方法，所述燃料喷射器包括具有压电元件堆叠的压电致动器，包括向致动器施加放电电流（I OUT）以用于放电周期，以便从第一差分放电跨过堆叠的电压电平跨越堆叠的第二，较低的差分电压电平，以便启动注入事件，并且在充电周期（T 3）处向执行器施加充电电流（I SUB CHARGE ）到T 4'），以便将堆叠从第二差分电压电平充电到第三差分电压电平，以终止注入事件。该方法包括在将致动器施加充电电流（I SUB CHARGE ）之前确定喷射事件的至少一个发动机参数（例如公共轨道压力），并且根据该方法选择第三差分电压电平至少一个引擎参数。

4. 发明申请

US20070273245A1 System and method for operating a piezoelectric fuel injector 有权
标题翻译：用于操作压电燃料喷射器的系统和方法
公开(公告)号：US20070273245A1
公开(公告)日：2007-11-29
申请号：US11805384
申请日：2007-05-22
申请人： Martin Hardy , Christopher Goat , Michael Cooke , Andrew Hargreaves , Jean-Francois Berlemont
发明人： Martin Hardy , Christopher Goat , Michael Cooke , Andrew Hargreaves , Jean-Francois Berlemont
IPC分类号： H01L41/09
CPC分类号： F02D41/2096 , F02D41/3809 , F02D2200/0602
摘要： A method of operating a fuel injector including a piezoelectric actuator having a stack of piezoelectric elements, comprises applying a discharge current (IDISCHARGE) to the actuator for a discharge period so to discharge the stack from a first differential voltage level across the stack to a second, lower differential voltage level across the stack so as to initiate an injection event, and applying a charge current (ICHARGE) to the actuator for a charge period (T3 to T4′) so as to charge the stack from the second differential voltage level to a third differential voltage level so as to terminate the injection event. The method includes determining at least one engine parameter (e.g. common rail pressure) of the injection event prior to applying the charge current (ICHARGE) to the actuator and selecting the third differential voltage level in dependence on the at least one engine parameter.
摘要翻译：一种操作燃料喷射器的方法，所述燃料喷射器包括具有压电元件堆叠的压电致动器，包括向致动器施加放电电流（I OUT）以用于放电周期，以便从第一差分放电跨过堆叠的电压电平跨越堆叠的第二，较低的差分电压电平，以便启动注入事件，并且在充电周期（T 3）处向执行器施加充电电流（I SUB CHARGE ）到T 4'），以便将堆叠从第二差分电压电平充电到第三差分电压电平，以终止注入事件。该方法包括在将致动器施加充电电流（I SUB CHARGE ）之前确定喷射事件的至少一个发动机参数（例如公共轨道压力），并且根据该方法选择第三差分电压电平至少一个引擎参数。

5. 发明申请

US20100175669A1 METHOD OF POLING FERROELECTRIC MATERIALS 审中-公开
标题翻译：粉末冶金材料的制备方法
公开(公告)号：US20100175669A1
公开(公告)日：2010-07-15
申请号：US12652762
申请日：2010-01-06
申请人： CHRISTIAN GRIS , JEAN-FRANCOIS BERLEMONT , JOACHIM VENDULET , SIMON R. PANTENY
发明人： CHRISTIAN GRIS , JEAN-FRANCOIS BERLEMONT , JOACHIM VENDULET , SIMON R. PANTENY
IPC分类号： F02M51/06
CPC分类号： H01L41/257 , H01L41/083 , H01L41/1876
摘要： A method of poling a ferroelectric sample suitable for use in a fuel injector of an internal combustion engine, the method comprising providing a ferroelectric sample having a stack of ferroelectric layers, wherein adjacent layers are separated by internal electrodes, forming a first group and a second group of electrodes; applying a multiaxial pressure to the ferroelectric sample; reducing the bonding strength between each pair of adjacent ferroelectric layers and internal electrodes; and generating a first electric field between the first and second group of electrodes to pole each ferroelectric layer in a first poling direction.
摘要翻译：一种适用于内燃机的燃料喷射器的铁电样品的极化方法，该方法包括提供具有堆叠铁电层的铁电样品，其中相邻层由内部电极分离，形成第一组和第二组电极组对铁电样品施加多轴压力; 降低每对相邻的铁电层和内部电极之间的接合强度; 以及在所述第一和第二组电极之间产生第一电场，以使所述铁电层在第一极化方向上极化。

6. 发明申请

US20090294556A1 Encapsulating arrangement for an electrical component 审中-公开
标题翻译：电气部件的封装结构
公开(公告)号：US20090294556A1
公开(公告)日：2009-12-03
申请号：US12224278
申请日：2007-02-14
申请人： Russell H. Bosch , Jean-Francois Berlemont
发明人： Russell H. Bosch , Jean-Francois Berlemont
IPC分类号： B05B1/30 , H01L41/083 , F16K31/02
CPC分类号： H01L41/0533 , F02M51/0603 , H01L41/083
摘要： The invention provides an encapsulating arrangement for an electrical component comprising first and second insulating layers and an electrically charged conductive layer, preferably in the form of a metal foil, intermediate the first and second insulating layers, and arranged to prevent the passage of ionic species across the encapsulating arrangement. The encapsulating arrangement of the invention has particular application to piezoelectric actuator arrangements for fuel injectors of internal combustion engines.
摘要翻译：本发明提供了一种用于电气部件的封装装置，包括第一绝缘层和第二绝缘层，以及优选为金属箔形式的带电荷的导电层，位于第一和第二绝缘层之间，并且被布置成防止离子物质通过封装装置。本发明的封装装置特别适用于内燃机燃料喷射器的压电致动装置。

7. 发明申请

US20100180865A1 Barrier Coatings for a Piezoelectric Device 审中-公开
标题翻译：用于压电器件的阻挡涂层
公开(公告)号：US20100180865A1
公开(公告)日：2010-07-22
申请号：US12223932
申请日：2007-02-14
申请人： Joachim Vendulet , Joachim R. Kiefer , Jean-Francois Berlemont
发明人： Joachim Vendulet , Joachim R. Kiefer , Jean-Francois Berlemont
IPC分类号： F02M51/00 , H01L41/053 , H01L41/22
CPC分类号： H01L41/0533 , F02M51/0603 , H01L41/083 , H01L41/23 , Y10T29/42
摘要： Provided are barrier coatings and methods for applying barrier coatings to piezoelectric actuators that are intended for use in automotive fuel injectors. The barrier coatings are characterised by the presence of at least one organic layer, and additionally metal and/or non-metallic inorganic layers. The barrier coatings described show advantage in resisting permeation by liquid fuel, water and other contaminants.
摘要翻译：提供了用于将阻挡涂层施加到旨在用于汽车燃料喷射器的压电致动器的阻挡涂层和方法。阻挡涂层的特征在于存在至少一个有机层，另外还有金属和/或非金属无机层。所描述的阻隔涂层显示出抵抗液体燃料，水和其它污染物渗透的优点。

8. 发明申请

US20050199745A1 Method of assembling a fuel injector 审中-公开
标题翻译：组装燃油喷射器的方法
公开(公告)号：US20050199745A1
公开(公告)日：2005-09-15
申请号：US11076144
申请日：2005-03-08
申请人： Jean-Francois Berlemont
发明人： Jean-Francois Berlemont
IPC分类号： B05B1/08 , F02M51/00 , F02M51/06 , F02M61/16 , F02M61/20 , F02M63/00 , H01L41/08 , H02N2/00
CPC分类号： F02M51/005 , F02M51/0603 , F02M61/165 , F02M2200/215 , F02M2200/707
摘要： A method of assembling a fuel injector (8) comprising a fuel injector body having an accumulator volume (22) defined therein is described. The method comprises: providing an encapsulated actuator arrangement (29a) having a piezoelectric actuator stack (29) and electrical connector means (34,36), wherein the stack (29) is encapsulated in a sleeve member (30); providing a volume of sealing material (42) in the region of the electrical connector means (34,36); locating the encapsulated actuator arrangement (29a) in the accumulator volume (22); applying heat indirectly to the volume of sealing material (42) so as to soften the volume of sealing material; and applying pressure to the encapsulated actuator arrangement (29a) such that the volume of sealing material (42) deforms to form a substantially fluid-tight seal (38) between the encapsulated actuator arrangement (29a) and the accumulator volume (22) in the region of the electrical connector means (34,36).
摘要翻译：描述了一种组装燃料喷射器（8）的方法，其包括具有限定在其中的蓄能器容积（22）的燃料喷射器主体。该方法包括：提供具有压电致动器堆叠（29）和电连接器装置（34,36）的封装的致动器装置（29a），其中所述堆叠（29）被封装在套筒构件（30）中; 在所述电连接器装置（34,36）的区域中提供一定体积的密封材料（42）; 将封装的致动器装置（29a）定位在蓄能器容积（22）中; 间接地对密封材料（42）的体积施加热量，以便软化密封材料的体积; 以及向所述封装的致动器装置（29a）施加压力，使得所述密封材料（42）的体积变形以在所述封装的致动器装置（29a）和所述储存器容积（22）之间形成基本上流体密封的密封件（38）在电连接器装置（34,36）的区域中。

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