公开(公告)号：US06685105B1

公开(公告)日：2004-02-03

申请号：US09868683

申请日：2001-09-27

Applicant: Wolfgang Ruehle ,  Hubert Stier ,  Matthias Boee ,  Guenther Hohl ,  Norbert Keim

Inventor： Wolfgang Ruehle ,  Hubert Stier ,  Matthias Boee ,  Guenther Hohl ,  Norbert Keim

IPC: B05B108

CPC classification number: F02M51/0603 ,  F02M61/167 ,  F02M2200/16

Abstract: A fuel injector, in particular an injector for fuel injection systems in internal combustion engines, has a piezoelectric or magnetostrictive actuator, a valve closing body which can be operated by the actuator by way of a valve needle and which cooperates with a valve seat face to form a sealing seat, and having a hydraulic lifting device including two lifting cylinders that can move in opposite directions. The lifting device is a subassembly hermetically sealed off from a valve interior and has a housing having at least one section which is flexible in the axial direction.

Abstract translation: 燃料喷射器，特别是用于内燃机中的燃料喷射系统的喷射器具有压电或磁致伸缩致动器，阀关闭体，其可由致动器通过阀针操作，并且与阀座面相配合 形成密封座，并且具有包括能够沿相反方向移动的两个提升缸的液压提升装置。 提升装置是从阀内部密封地密封的子组件，并且具有至少一个在轴向上是柔性的部分的壳体。

公开(公告)号：US06676035B2

公开(公告)日：2004-01-13

申请号：US09973939

申请日：2001-10-11

Applicant: Jack Lorraine ,  Andreas Kappel ,  Enrico Ulivieri ,  Bernhard Gottlieb ,  Bernhard Fischer

Inventor： Jack Lorraine ,  Andreas Kappel ,  Enrico Ulivieri ,  Bernhard Gottlieb ,  Bernhard Fischer

IPC: B05G304

CPC classification number: F02M51/0603 ,  F02M61/08 ,  F02M61/167

Abstract: A fuel injector comprises a body having a longitudinal axis, an length-changing actuator that has first and second ends, a closure member coupled to the first end of the length-changing actuator, and a compensator assembly coupled the second end of the actuator. The length-changing actuator includes first and second ends. The closure member is movable between a first configuration permitting fuel injection and a second configuration preventing fuel injection. And the compensator assembly axially positions the actuator with respect to the body in response to temperature variation. The compensator assembly utilizes a configuration of at least one spring disposed between two pistons so as to reduce the use of elastomer seals to thereby reduce a slip stick effect. Also, a method of compensating for thermal expansion or contraction of the fuel injector comprises providing fuel from a fuel supply to the fuel injector; and adjusting the actuator with respect to the body in response to temperature and other dimensional variations.

Abstract translation: 燃料喷射器包括具有纵向轴线的本体，具有第一和第二端的长度改变的致动器，联接到长度改变致动器的第一端的闭合构件和联接在致动器的第二端的补偿器组件。 长度改变致动器包括第一和第二端。 封闭构件可以在允许燃料喷射的第一配置和防止燃料喷射的第二配置之间移动。 并且补偿器组件响应于温度变化将致动器相对于主体轴向定位。 补偿器组件利用设置在两个活塞之间的至少一个弹簧的构造，以便减少弹性体密封的使用，从而减少滑动棒效应。 此外，补偿燃料喷射器的热膨胀或收缩的方法包括从燃料供给燃料喷射器提供燃料; 以及响应于温度和其他尺寸变化而相对于身体调节致动器。

公开(公告)号：US06575138B2

公开(公告)日：2003-06-10

申请号：US09863187

申请日：2001-05-23

Applicant: Alan B. Welch ,  Irawan Rahardja ,  Mike Hebbes

Inventor： Alan B. Welch ,  Irawan Rahardja ,  Mike Hebbes

IPC: F02M5502

CPC classification number: F02D41/20 ,  F02B2275/14 ,  F02D41/2096 ,  F02D2041/2037 ,  F02M21/0254 ,  F02M21/0269 ,  F02M51/005 ,  F02M51/0603 ,  F02M51/0607 ,  F02M61/08 ,  F02M61/10 ,  F02M61/166 ,  F02M61/167 ,  F02M2200/30 ,  F02M2200/304 ,  F02M2200/507 ,  Y02T10/123 ,  Y02T10/32

Abstract: A directly actuated injection valve comprises a hollow valve housing, a valve member disposed within the hollow interior, a biasing mechanism, an actuator assembly and a passive hydraulic link assembly. The valve member is movable between a closed position and an open position for governing the flow of fuel into the combustion chamber of an internal combustion engine. The biasing mechanism, preferably a spring, biases the valve member in the closed position. The actuator assembly generates an opening force that acts against the valve spring to open the valve. The hydraulic link assembly is interposed between the valve member and the valve spring and the actuator assembly. The hydraulic link assembly transmits respective closing and opening forces to the valve member. The hydraulic link preferably comprises a piston disposed within a cylinder that is filled with a hydraulic fluid.

Abstract translation: 直接致动的喷射阀包括中空阀壳体，设置在中空内部的阀构件，偏置机构，致动器组件和被动液压连杆组件。 阀构件可以在关闭位置和打开位置之间移动，以控制进入内燃机的燃烧室的燃料流。 偏置机构，优选地是弹簧，将阀构件偏置在关闭位置。 致动器组件产生作用于阀弹簧以打开阀的打开力。 液压连杆组件介于阀构件和阀弹簧和致动器组件之间。 液压连杆组件将相应的关闭和打开力传递到阀构件。 液压连杆优选地包括设置在充满液压流体的气缸内的活塞。

公开(公告)号：US20030006300A1

公开(公告)日：2003-01-09

申请号：US10140451

申请日：2002-05-07

Inventor： Massimo Neretti ,  Michele Petrone ,  Andrea Ricci ,  Cecilia Lamberti

IPC: B05B001/08

CPC classification number: F02M61/167 ,  F02M51/0607

Abstract: Fuel injector provided with a piezoelectric actuator, a valve activated by the piezoelectric actuator and regulating a fuel supply that flows in a working direction, and a mechanical transmission placed between the piezoelectric actuator and the valve; an expansion of the piezoelectric actuator displaces the valve in the working direction from a closed position to an open position in an opposite direction to that of the fuel outlet.

Abstract translation: 燃料喷射器，其具有压电致动器，由压电致动器激活的阀和调节沿工作方向流动的燃料供给;以及机械传动装置，其位于压电致动器和阀之间; 压电执行器的膨胀使阀在工作方向上从关闭位置朝向与燃料出口相反的方向移动到打开位置。

公开(公告)号：US20020195904A1

公开(公告)日：2002-12-26

申请号：US10159281

申请日：2002-06-03

Applicant: Siemens Automotive Corporation

Inventor： Thomas Allen Sumrak ,  David Paul Wieczorek

IPC: H02N002/00 ,  H01L041/04

CPC classification number: F02D41/2096 ,  F02M51/0603 ,  F02M61/167 ,  F02M2200/24

Abstract: A fuel injector comprises a tube assembly, a stem assembly, and a plurality of sets of piezoelectric elements. The tube assembly includes a seat defining an opening through which fuel enters an internal combustion engine. The stem assembly includes a cap and a stem that are relatively movable with respect to one another. A gap is located between the stem and cap when the stem contiguously engages the seat such that fuel flow through the opening is prevented. A first set of piezoelectric elements moves the cap in response to a first electric field, and a second set of piezoelectric elements moves the first set of piezoelectric elements in response to a second electric field. A sensor measuring the gap compensates the second electric field for physical changes in at least one of the tube and stem assemblies.

公开(公告)号：US20020117149A1

公开(公告)日：2002-08-29

申请号：US10028905

申请日：2001-12-28

Inventor： Toshihiko Igashira ,  Satoshi Hayashi

IPC: F02M001/00

CPC classification number: F02D41/008 ,  F02D41/2435 ,  F02D41/2467 ,  F02D2200/0602 ,  F02M47/027 ,  F02M47/046 ,  F02M51/0603 ,  F02M61/167 ,  F02M63/0026 ,  F02M63/0225 ,  F02M2200/21 ,  F02M2200/704

Abstract: A supplying unit supplies energy to an actuator so that the supplied energy is kept therein, making displacement the actuator. An interrupting unit interrupts the supply of energy to cause the actuator to discharge the kept energy, making displacement the actuator. A converting unit is adapted to convert the displacement of the actuator corresponding to the kept energy into hydraulic pressure applied to the valve member, moving the valve member to open the low pressure port and close the high pressure port. The convert unit converts the displacement of the actuator corresponding to the discharged energy into hydraulic pressure applied to the valve member, moving the valve member to open the high pressure port and close the low pressure port. Energy which the actuator requires to move the valve member so as to close the high pressure port is larger than energy which the actuator requires to move the valve member so as to open the low pressure port.

Abstract translation: 供给单元向致动器供给能量，使供给的能量保持在其中，使致动器移动。 中断单元中断能量供应，致使致动器释放保持的能量，使致动器移动。 A转换单元适于将对应于保持的能量的致动器的位移转换成施加到阀构件的液压，移动阀构件以打开低压端口并关闭高压端口。 转换单元将对应于排出的能量的致动器的位移转换成施加到阀构件的液压，移动阀构件以打开高压端口并关闭低压端口。 致动器需要移动阀构件以便关闭高压端口的能量大于致动器移动阀构件以便打开低压端口所需的能量。

公开(公告)号：US06313568B1

公开(公告)日：2001-11-06

申请号：US09452385

申请日：1999-12-01

Applicant: Jeffrey J. Sullivan ,  John D. Crofts

Inventor： Jeffrey J. Sullivan ,  John D. Crofts

IPC: H01L4104

CPC classification number: F02M63/0026 ,  F02M47/027 ,  F02M61/167 ,  F16K31/007 ,  H01L41/053 ,  H01L41/083

Abstract: A piezoelectric actuator assembly that is insensitive to wide variations in operating temperatures including a stack of piezoelectric devices and a surrounding housing assembly formed of an outer cylindrical housing portion formed of steel having a coefficient of thermal expansion above that of the piezoelectric material and an inner cylindrical housing portion formed of Si—Ni ceramic. By arranging the inner and outer housing portions in parallel and forming the housing portions with appropriate cross-sectional areas, the housing assembly will have an effective coefficient of thermal expansion &agr;e that is equivalent to that of the piezoelectric element &agr;p. In particular, if the material of the first housing portion has a modulus Em1 and an effective cross-sectional area Am1, and the material of the second housing portion has a modulus Em2 and an effective cross-sectional area Am2, the resultant effective coefficient of thermal expansion will be given by the following formula: α p = α m1 + α m2 ⁢ E m2 E m1 ⁢ ( A m2 A m1 ) ( 1 + E m2 E m1 ⁢ ( A m2 A m1 ) )

Abstract translation: 一种压电致动器组件，其对工作温度的宽泛变化不敏感，包括一叠压电元件和由一个由钢构成的外部圆柱形壳体部分形成的周围壳体组件，该外部圆柱形壳体部分的热膨胀系数高于压电材料的热膨胀系数， 壳体部分由Si-Ni陶瓷形成。 通过将内壳体部分和外壳体部分平行布置并以适当的横截面积形成壳体部分，壳体组件将具有与压电元件的相同的有效热膨胀系数αe。 特别地，如果第一壳体部分的材料具有模量Em1和有效截面积Am1，并且第二壳体部分的材料具有模量Em2和有效截面积Am2，则所得到的有效系数 热膨胀将由下列公式给出：

公开(公告)号：US06311950B1

公开(公告)日：2001-11-06

申请号：US09553371

申请日：2000-04-20

Applicant: Andreas Kappel ,  Bernhard Fischer ,  Bernhard Gottlieb ,  Randolf Mock ,  Eric Chemisky ,  Hans Meixner

Inventor： Andreas Kappel ,  Bernhard Fischer ,  Bernhard Gottlieb ,  Randolf Mock ,  Eric Chemisky ,  Hans Meixner

IPC: F16K3102

CPC classification number: F02M51/0671 ,  F02M51/0603 ,  F02M61/08 ,  F02M61/16 ,  F02M61/167 ,  F02M63/0057 ,  F02M2200/16

Abstract: A fluid metering device that employs a sealing element for delivering a metered dose of a pressurized fluid. The sealing element includes a metal bellows sealing element or metal bellows that attaches to a valve needle and a housing. The metal bellows includes a number of corrugated elements for sealingly guiding said valve needle as the valve needle moves to deliver the metered dose of pressurized fluid.

Abstract translation: 一种流体计量装置，其采用用于输送计量剂量的加压流体的密封元件。 密封元件包括附接到阀针和壳体的金属波纹管密封元件或金属波纹管。 金属波纹管包括多个波纹元件，用于当阀针移动以密封地引导所述阀针以递送计量剂量的加压流体。

公开(公告)号：US20010035163A1

公开(公告)日：2001-11-01

申请号：US09863188

申请日：2001-05-23

Inventor： Irawan Rahardja ,  Mike Hebbes

IPC: F02M001/00

CPC classification number: F02M61/167 ,  F02B2275/14 ,  F02D19/024 ,  F02D19/025 ,  F02D41/20 ,  F02D41/2096 ,  F02D2041/2037 ,  F02M21/0254 ,  F02M21/0263 ,  F02M21/0275 ,  F02M21/0296 ,  F02M51/005 ,  F02M51/0607 ,  F02M61/08 ,  F02M61/10 ,  F02M61/166 ,  F02M2200/30 ,  F02M2200/304 ,  F02M2200/507 ,  Y02T10/123 ,  Y02T10/32

Abstract: A directly actuated injection valve comprises a hollow valve housing, a valve needle disposed within the hollow interior, a needle spring and a tubular magnetostrictive actuator assembly disposed in an annular space around a portion of the valve needle. A magnetic field activates the magnetostrictive material to change its length to cause a corresponding movement of the valve needle that actuates the valve. The valve needle is formed from a ferromagnetic material and extends through the tubular magnetostrictive actuator assembly without interfering with the flux field that is directed through the magnetostrictive member. A passive hydraulic link assembly is preferably employed to compensate for component wear, temperature effects and manufacturing variations within design tolerances.

Abstract translation: 直接致动的喷射阀包括中空阀壳体，设置在中空内部的阀针，针弹簧和管状磁致伸缩致动器组件，其设置在围绕阀针的一部分的环形空间中。 磁场激活磁致伸缩材料以改变其长度，以引起致动阀的阀针的相应运动。 阀针由铁磁材料形成并且延伸穿过管状磁致伸缩致动器组件而不干扰通过磁致伸缩构件的磁通场。 被动液压连杆组件优选地用于补偿部件磨损，温度影响和设计公差内的制造变化。

公开(公告)号：US5697554A

公开(公告)日：1997-12-16

申请号：US581959

申请日：1996-01-02

Applicant: Gerhard Auwaerter ,  Katsuoki Itoh ,  Rudolf Heinz ,  Winfried Moser ,  Christoph Franke

Inventor： Gerhard Auwaerter ,  Katsuoki Itoh ,  Rudolf Heinz ,  Winfried Moser ,  Christoph Franke

IPC: F16K31/02 ,  F02M21/02 ,  F02M51/06 ,  F02M61/08 ,  F02M61/16 ,  F02M63/00 ,  H01L41/09

CPC classification number: F02M61/167 ,  F02M21/0254 ,  F02M21/0263 ,  F02M21/0269 ,  F02M51/0603 ,  F02M61/08 ,  F02M61/163 ,  F02M2200/704 ,  F02M2200/705 ,  Y02T10/32

Abstract: A metering valve for metering a fluid for a fuel injection valve for internal combustion engines, with a hydraulic displacement amplifier for converting the actuating displacement of a piezoelectric actuator into an increased stroke of the valve needle. Integrating the displacement amplifier spatially into the valve housing in an "O valve" to give a small overall volume is served by providing the lifting piston of the displacement amplifier with an end section of reduced diameter which projects into a recess in the operation piston of the displacement amplifier. A Belleville spring lying in the amplifier chamber bounded by the pistons presses the operating piston against the actuator, and a helical compression spring arranged in the recess concentrically to the end section presses the lifting piston against the valve needle.

Abstract translation: 一种用于计量用于内燃机的燃料喷射阀的流体的计量阀，具有用于将压电致动器的致动位移转换为阀针的增加行程的液压位移放大器。 通过使位移放大器的提升活塞具有减小的直径的端部部分，该端部突出到操作活塞中的凹部中，将位移放大器空间上集成到阀壳体中以产生小的总体积 位移放大器。 位于由活塞限定的放大器室中的Belleville弹簧将操作活塞压靠在致动器上，并且布置在与凹部同心的凹部中的螺旋压缩弹簧将提升活塞压靠在阀针上。