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11 条记录 (耗时 0.012 秒)

    Protective encapsulation
    1.
    发明公开
    Protective encapsulation 有权
    保护性封装

    公开(公告)号：EP1849993A1

    公开(公告)日：2007-10-31

    申请号：EP06252206.5

    申请日：2006-04-25

    申请人： Delphi Technologies, Inc.

    发明人： Goat, Christopher ,  Kiefer, Joachim c/o Delphi Tech. Centre-Luxembourg

    IPC分类号： F02M51/06 ,  H01L41/053

    CPC分类号： F02M51/0603 ,  F02M2200/16 ,  F02M2200/22 ,  H01L41/053 ,  H01L41/0533 ,  Y10T29/42

    摘要： An electrical device (29) such as a piezoelectric actuator is protected against permeation by injurious fluids such as fuel (diesel/gasoline) and water by encapsulating the device with a shape memory metallic material (46). The shape memory metallic material (46) may be in the form of a tube manufactured to the required dimensions for encapsulation of the device (29). The tube may then be plastically deformed, such as by stretching, before being placed over the device (29) and heated above its transformation temperature to recover its original shape. The invention is particularly suitable for protecting passivated piezoelectric actuators.

    摘要翻译： 通过用形状记忆金属材料（46）封装该装置，诸如压电致动器的电气装置（29）被诸如燃料（柴油/汽油）和水的有害流体防止渗透。 形状记忆金属材料（46）可以是制造成用于封装装置（29）的所需尺寸的管的形式。 然后，管可以在被放置在装置（29）上方并且被加热到高于其转变温度以恢复其原始形状之前被塑性变形，例如通过拉伸。 本发明特别适用于保护钝化的压电致动器。

    Actuator arrangement
    2.
    发明公开
    Actuator arrangement 有权
    执行器安排

    公开(公告)号：EP1783842A1

    公开(公告)日：2007-05-09

    申请号：EP05256852.4

    申请日：2005-11-04

    申请人： Delphi Technologies, Inc.

    发明人： Bosch, Russell ,  Cooke, Michael ,  Goat, Christopher

    IPC分类号： H01L41/053 ,  F02M59/46 ,  F02M51/06

    CPC分类号： H01L41/23 ,  F02M51/0603 ,  F02M63/0026 ,  F02M2200/22 ,  H01L41/0533

    摘要： An actuator arrangement comprising a piezoelectric actuator having a body section, a shroud which enshrouds at least part of the body section of the actuator, and at least one constrictive member disposed externally with respect to the shroud. The constrictive member applies a constrictive force to the shroud to maintain a seal between the shroud and the underlying body section of the actuator.

    摘要翻译： 一种致动器装置，其包括压电致动器，该压电致动器具有主体部分，罩住致动器的主体部分的至少一部分的罩，以及相对于罩布置在外部的至少一个收缩构件。 收缩部件向护罩施加收缩力以维持护罩与致动器的下面的身体部分之间的密封。

    Piezoelectric actuator device
    3.
    发明公开
    Piezoelectric actuator device 有权
    Piezoelektrischer Aktor

    公开(公告)号：EP1519425A2

    公开(公告)日：2005-03-30

    申请号：EP04255835.3

    申请日：2004-09-24

    申请人： Delphi Technologies, Inc.

    发明人： Cooke, Michael ,  Goat, Christopher ,  Sfakianakis, Stavros

    IPC分类号： H01L41/047 ,  H01L41/083 ,  H01L41/22

    CPC分类号： H01L41/0474 ,  F02M63/0026 ,  H01L41/0477

    摘要： A piezoelectric actuator device comprises a stack (31) of one or more piezoelectric elements (42) defining an external stack boundary and means for applying a voltage across the one or more piezoelectric elements (42), wherein the means includes a pair of opposing electrodes (44a, 44b), first and second channels (32, 34) disposed inward of the external stack boundary and positive and negative conductor members (36a, 36b) received by said first and second channels (32, 34) respectively. The conductor members (36a, 36b) comprise a material that is of liquid behaviour during at least a period of actuator operation.

    摘要翻译： 压电致动器装置包括限定外部堆叠边界的一个或多个压电元件（42）的堆叠（31）和用于在所述一个或多个压电元件（42）上施加电压的装置，其中所述装置包括一对相对的电极 （44a，44b），设置在外部堆叠边界内侧的第一和第二通道（32,34）以及分别由所述第一和第二通道（32,34）接收的正和负导体构件（36a，36b）。 导体构件（36a，36b）包括在致动器操作的至少一段时间内具有液体特性的材料。

    Improvements to ferroelectric durability
    5.
    发明公开
    Improvements to ferroelectric durability 有权
    Verbesserung der ferroelektrischen Dauerhaftigkeit

    公开(公告)号：EP1793430A1

    公开(公告)日：2007-06-06

    申请号：EP05257355.7

    申请日：2005-11-30

    申请人： Delphi Technologies, Inc.

    发明人： Goat, Christopher ,  Hardy, Martin

    IPC分类号： H01L41/053

    CPC分类号： H01L41/053 ,  H01L41/0533 ,  H01L41/083

    摘要： A piezoelectric actuator (21) for use in a fuel injection system of an internal combustion engine, the actuator comprising a stack (34) of ferroelectric layers (16); an encapsulation (36) for protecting the stack (34) from the ingress of liquid; and oxygenation means for providing oxygen to the ferroelectric layers (16), the means positioned between the encapsulation (36) and stack (34). The oxygenation means is preferably impregnated in a fabric (22) which forms a layer between the encapsulation (36) and the stack (34).

    摘要翻译： 一种用于内燃机的燃料喷射系统的压电致动器（21），所述致动器包括铁电层（16）的堆叠（34）。 用于保护所述堆叠（34）免受液体侵入的封装（36）; 以及用于向铁电层（16）提供氧的氧合装置，位于封装（36）和堆叠（34）之间的装置。 氧合装置优选浸渍在织物（22）中，织物（22）在封装（36）和堆叠（34）之间形成一层。

    Piezoelectric actuator
    6.
    发明公开
    Piezoelectric actuator 有权
    压电致动器

    公开(公告)号：EP1764844A1

    公开(公告)日：2007-03-21

    申请号：EP05255752.7

    申请日：2005-09-16

    申请人： Delphi Technologies, Inc.

    发明人： Bosch, Russell ,  Cooke, Michael ,  Goat, Christopher

    IPC分类号： H01L41/083

    CPC分类号： H01L41/0471 ,  H01L41/0838 ,  H01L41/273 ,  Y10T29/42

    摘要： A piezoelectric actuator comprises a co-fired stack (10) of piezoelectric elements (12) formed from a piezoelectric material and a plurality of positive internal electrodes (14) interdigitated with a plurality of negative internal electrodes (16) throughout the stack (10) to define active regions (22) of the piezoelectric material which are responsive to a voltage applied across the internal electrodes (14), in use. An external positive electrode (18) connects with the positive internal electrodes (14) and an external negative electrode (20) connects with the negative internal electrodes (16). The actuator is characterised in that the stack (10) further comprises means (34; 38a, 38b; 40) for deliberately creating artificial cracks (36) within the stack (10) at a location at which the artificial cracks do not give rise to a short circuit between the internal electrodes (14, 16) but serve to relieve stresses within the piezoelectric material.

    摘要翻译： 一种压电致动器包括由压电材料形成的压电元件（12）的共烧叠层（10）和在整个叠层（10）中与多个负内电极（16）交叉指状的多个正内电极（14） 以限定在使用中响应于施加在内部电极（14）上的电压的压电材料的有源区（22）。 外部正极（18）与正极内部电极（14）连接，外部负极（20）与负极内部电极（16）连接。 所述致动器的特征在于，所述堆叠（10）还包括用于在所述堆叠（10）内在所述人造裂缝不产生的位置有意地产生人造裂缝（36）的装置（34; 38a，38b; 40） 内部电极（14,16）之间的短路但用于缓解压电材料内的应力。

    Piezoelectric actuator device
    9.
    发明公开
    Piezoelectric actuator device 有权
    压电致动器装置

    公开(公告)号：EP1519425A3

    公开(公告)日：2005-04-06

    申请号：EP04255835.3

    申请日：2004-09-24

    申请人： Delphi Technologies, Inc.

    发明人： Cooke, Michael ,  Goat, Christopher ,  Sfakianakis, Stavros

    IPC分类号： H01L41/047 ,  H01L41/083 ,  H01L41/22

    CPC分类号： H01L41/0474 ,  F02M63/0026 ,  H01L41/0477

    摘要： A piezoelectric actuator device comprises a stack (31) of one or more piezoelectric elements (42) defining an external stack boundary and means for applying a voltage across the one or more piezoelectric elements (42), wherein the means includes a pair of opposing electrodes (44a, 44b), first and second channels (32, 34) disposed inward of the external stack boundary and positive and negative conductor members (36a, 36b) received by said first and second channels (32, 34) respectively. The conductor members (36a, 36b) comprise a material that is of liquid behaviour during at least a period of actuator operation.

    摘要翻译： 压电致动器装置包括限定外部堆叠边界的一个或多个压电元件（42）的堆叠（31）以及用于跨一个或多个压电元件（42）施加电压的装置，其中所述装置包括一对相对的电极 （44a，44b），设置在所述外部堆叠边界内侧的第一和第二通道（32,34）以及分别由所述第一和第二通道（32,34）接收的正和负导体构件（36a，36b）。 导体构件（36a，36b）包括在致动器操作的至少一段时间内具有液体行为的材料。