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1.发明授权公开(公告)号：US06729554B2
公开(公告)日：2004-05-04
申请号：US09969659
申请日：2001-10-04
申请人： Ryo Katsura , Kenji Funai , Toshihiko Igashira , Satoshi Hayashi
发明人： Ryo Katsura , Kenji Funai , Toshihiko Igashira , Satoshi Hayashi
IPC分类号： F02M4702
CPC分类号： F02M63/0026 , F02M47/027 , F02M55/002 , F02M61/14 , F02M2200/304 , F02M2200/315 , F02M2200/706
摘要： A fuel injector is provided which is designed to suppress unwanted vibrations of a nozzle needle-actuating piston, thereby avoiding the injection of an excess quantity of fuel. The fuel injector comprises an actuator and a displacement amplifying chamber filled with fluid to which a large-diameter piston and a small-diameter piston working as the nozzle needle-actuating piston are exposed. The displacement amplifying chamber works to amplify and transmit displacement of the large-diameter piston by the actuator to the small-diameter piston. The fuel injector also includes a stopper which restricts movement of the small-diameter piston toward the displacement amplifying chamber to a given range, thereby suppressing the unwanted vibrations of the small-diameter piston.
摘要翻译： 提供了一种燃料喷射器，其设计成可以抑制喷嘴针致动活塞的不期望的振动，从而避免喷射过量的燃料。 燃料喷射器包括致动器和填充有流体的位移放大室，大流量活塞和作为喷嘴针致动活塞的小直径活塞暴露在该流体中。 位移放大室用于将大直径活塞的位移放大并传递给小直径活塞。 燃料喷射器还包括限制小容积活塞向位移放大室移动至给定范围的止动件，从而抑制小直径活塞的不希望的振动。
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公开(公告)号：US06679440B2
公开(公告)日：2004-01-20
申请号：US09978583
申请日：2001-10-18
IPC分类号： F02M5900
CPC分类号： F02M63/0026 , F02M47/027 , F02M63/0036 , F02M63/0045 , F02M2200/706
摘要： A valve actuating device is provided which may be employed in fuel injectors for automotive internal combustion engines. The valve actuating device includes an actuator, a large-diameter piston displaced by said actuator, a small-diameter piston operating a valve, a displacement amplifying chamber filled with working fluid to amplify and transmit displacement of the large-diameter piston to the small-diameter piston, and a drain passage. The drain passage communicates with the displacement amplifying chamber through a pinhole for draining the working fluid within the displacement amplifying chamber, thereby enabling the pressure in the displacement amplifying chamber to be released in order to ensure the movement of the small-diameter piston when the valve actuating device is started.
摘要翻译： 提供了可用于汽车内燃机的燃料喷射器中的阀致动装置。 阀致动装置包括致动器，由所述致动器移动的大直径活塞，操作阀的小直径活塞，填充有工作流体的位移放大室，以将大直径活塞的位移放大并传递到小直径活塞， 直径活塞和排水通道。 排水通道通过针孔与位移放大室连通，用于排出位移放大室内的工作流体，从而使位移放大室中的压力释放，以确保小直径活塞在阀门 启动装置启动。
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3.发明授权
公开(公告)号：US5779149A
公开(公告)日：1998-07-14
申请号：US674556
申请日：1996-07-02
CPC分类号： F02M47/027 , F02M63/0026 , F02M63/0035 , F02M63/0036 , F02M63/0045 , F02M2200/705 , F02M2200/706
摘要： A common rail fuel injector utilizes a piezoelectric actuator (8) to open and close the injector valve (3). Intermediate the piezoelectric actuator and the injector valve are a large diameter first piston (9) in fluid communication with a smaller diameter second piston to multiply the actuation extension of the piezoelectric actuator. The second piston (11) operates a poppet valve (1) to hydraulically control the injector valve.
摘要翻译： 共轨燃料喷射器利用压电致动器（8）来打开和关闭喷射器阀（3）。 中间压电致动器和喷射器阀是与较小直径的第二活塞流体连通的大直径第一活塞（9），以使压电致动器的致动延伸倍增。 第二活塞（11）操作提升阀（1）以液压地控制喷射器阀。
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公开(公告)号：US20170284355A1
公开(公告)日：2017-10-05
申请号：US15086968
申请日：2016-03-31
IPC分类号： F02M63/00
CPC分类号： F02M63/0056 , F02M51/06 , F02M61/08 , F02M63/0029 , F02M63/0035 , F02M2200/705 , F02M2200/706
摘要： A fuel injector includes a housing defining a longitudinal bore having a proximal end and a distal end, a high pressure fuel duct in communication with the longitudinal bore and a valve seat including a valve seat surface and an aperture at the distal end of the longitudinal bore. A poppet valve is disposed in the longitudinal bore and includes a valve head that is engageable with the valve seat surface. An actuator device is disposed at the proximal end of the longitudinal bore and a hydraulic coupler is disposed between the actuator and the poppet valve within the longitudinal bore. The hydraulic coupler defines a chamber that receives low pressure fuel for providing a hydraulic lash adjuster between the actuator and the poppet valve.
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5.发明申请公开(公告)号：US20020040939A1
公开(公告)日：2002-04-11
申请号：US09969659
申请日：2001-10-04
发明人： Ryo Katsura , Kenji Funai , Toshihiko Igashira , Satoshi Hayashi
IPC分类号： F02M041/16
CPC分类号： F02M63/0026 , F02M47/027 , F02M55/002 , F02M61/14 , F02M2200/304 , F02M2200/315 , F02M2200/706
摘要： A fuel injector is provided which is designed to suppress unwanted vibrations of a nozzle needle-actuating piston, thereby avoiding the injection of an excess quantity of fuel. The fuel injector comprises an actuator and a displacement amplifying chamber filled with fluid to which a large-diameter piston and a small-diameter piston working as the nozzle needle-actuating piston are exposed. The displacement amplifying chamber works to amplify and transmit displacement of the large-diameter piston by the actuator to the small-diameter piston. The fuel injector also includes a stopper which restricts movement of the small-diameter piston toward the displacement amplifying chamber to a given range, thereby suppressing the unwanted vibrations of the small-diameter piston.
摘要翻译： 提供了一种燃料喷射器，其设计成可以抑制喷嘴针致动活塞的不期望的振动，从而避免喷射过量的燃料。 燃料喷射器包括致动器和填充有流体的位移放大室，大流量活塞和作为喷嘴针致动活塞的小直径活塞暴露在该流体中。 位移放大室用于将大直径活塞的位移放大并传递给小直径活塞。 燃料喷射器还包括限制小容积活塞向位移放大室移动至给定范围的止动件，从而抑制小直径活塞的不希望的振动。
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公开(公告)号：US6155532A
公开(公告)日：2000-12-05
申请号：US165634
申请日：1998-10-02
CPC分类号： F02M47/027 , F02M2200/21 , F02M2200/706 , F02M2547/003
摘要： A valve for controlling fluids, which is provided with a fluid-filled coupling chamber that is disposed between an actuator piston of a piezoelectric actuator and a piston that actuates a valve member. In order to compensate for a leakage in the coupling chamber that is intermittently under high pressure during a switching procedure, a filling valve is provided that is disposed radially on the coupling chamber, but outside the chamber, and this valve monitors an inflow from an inlet conduit that is under ambient pressure in the valve. In this manner, on the one hand, the clearance volume produced by the attachment of the filling valve is very small and on the other hand, the filling valve is independent of the accelerated movements of the pistons, i.e., independent of their acceleration forces. The valve is designated for use in fuel injection devices for internal combustion engines of motor vehicles.
摘要翻译： 一种用于控制流体的阀，其设置有设置在压电致动器的致动器活塞和致动阀构件的活塞之间的流体填充的联接室。 为了补偿在切换过程中在高压下间歇地连接的联接室中的泄漏，设置有径向设置在联接室上但在室外的填充阀，并且该阀监视来自入口的流入 在阀门处于环境压力下的管道。 以这种方式，一方面，通过安装充填阀产生的间隙体积非常小，另一方面，填充阀独立于活塞的加速运动，即不依赖于它们的加速力。 该阀被指定用于机动车内燃机的燃料喷射装置。
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公开(公告)号：US20090277978A1
公开(公告)日：2009-11-12
申请号：US12434867
申请日：2009-05-04
IPC分类号： B05B1/30
CPC分类号： F02M51/0603 , F02M61/042 , F02M61/16 , F02M2200/704 , F02M2200/706 , F02M2200/707
摘要： A piston can reciprocate in a piston guide cylinder in an axial direction and has a cavity on a piezo driver side thereof. If the piezo driver is energized, a tip of a projecting section of a pushing member pushes a bottom wall of the piston defining the cavity. If fuel pressure of a pressure control chamber increases via a pressurization chamber and a communication passage due to pressurization by the piston, a needle moves in a valve-opening direction against a first compression coil spring. Since the piston has the cavity, a movable mass of the piston is reduced while securing axial length of a sliding section. Thus, fuel leak from the sliding section between the piston and the piston guide cylinder can be suppressed, and an inertial resistance caused in the piston can be reduced.
摘要翻译： 活塞可以沿着轴向在活塞导向圆筒中往复运动，并且在压电驱动器侧具有空腔。 如果压电驱动器通电，则推动构件的突出部分的尖端推动限定空腔的活塞的底壁。 如果压力控制室的燃料压力由于通过活塞的加压而经由加压室和连通通道而增加，则针沿着阀打开方向抵靠第一压缩螺旋弹簧移动。 由于活塞具有空腔，所以可以确保活塞的可移动质量，同时确保滑动部分的轴向长度。 因此，可以抑制从活塞和活塞引导筒之间的滑动部分的燃料泄漏，并且可以降低在活塞中产生的惯性阻力。
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公开(公告)号：US20090184183A1
公开(公告)日：2009-07-23
申请号：US12303164
申请日：2007-04-25
申请人： Falko Bredow , Martin Katz
发明人： Falko Bredow , Martin Katz
CPC分类号： F02M47/027 , F02M61/167 , F02M63/0054 , F02M2200/705 , F02M2200/706
摘要： A fuel injection device for an internal combustion engine includes a housing and a valve element arranged within the housing. The valve element interacts with a valve seat lying in the region of a fuel outlet opening. It is proposed that at least one control piston and a nozzle needle of the valve element be coupled to one another via a hydraulic coupler. The hydraulic coupler has a coupling space and a non-return valve connected to the coupling space and which opens away therefrom.
摘要翻译： 一种用于内燃机的燃料喷射装置，包括壳体和布置在壳体内的阀元件。 阀元件与位于燃料出口开口区域中的阀座相互作用。 提出了阀元件的至少一个控制活塞和喷嘴针通过液压耦合器彼此联接。 液压联轴器具有联接空间和连接到联接空间并从其开口的止回阀。
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公开(公告)号：US07353806B2
公开(公告)日：2008-04-08
申请号：US11516044
申请日：2006-09-06
申请人： Gary L. Gant
发明人： Gary L. Gant
CPC分类号： F02M51/0603 , F02M47/027 , F02M61/167 , F02M63/0026 , F02M63/004 , F02M63/0073 , F02M2200/706
摘要： A fuel injector device, for injecting fuel into a combustion chamber of an internal combustion engine, has a nozzle valve and nozzle valve control assembly adapted to use a control valve and high pressure fuel in the fuel injector in order to actuate movement of the nozzle valve between an open position to inject fuel and a closed position to terminate fuel injection. The nozzle valve control assembly employs a pressure balancing control valve so that the fuel pressure exerts a zero net force on the control valve in a dimension along which the control valve moves. Thus, the actuation occurs independently of the fuel pressure. In addition, the actuator is operably connected to the control valve by at least a hydraulic linkage, where the hydraulic linkage compensates for changes in the actuator and the injector body due to changes in temperature.
摘要翻译： 用于将燃料喷射到内燃机的燃烧室中的燃料喷射器装置具有喷嘴阀和喷嘴阀控制组件，其适于在燃料喷射器中使用控制阀和高压燃料，以便致动喷嘴阀的运动 在打开燃料的打开位置和关闭位置之间以终止燃料喷射。 喷嘴阀控制组件采用压力平衡控制阀，使得燃料压力在控制阀移动的尺寸上对控制阀施加零净力。 因此，致动独立于燃料压力而发生。 此外，致动器通过至少液压联动器可操作地连接到控制阀，其中液压联动装置由于温度变化而补偿致动器和喷射器主体的变化。
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公开(公告)号：US6142443A
公开(公告)日：2000-11-07
申请号：US174404
申请日：1998-10-19
申请人： Roger Potschin , Friedrich Boecking
发明人： Roger Potschin , Friedrich Boecking
IPC分类号： F02M47/00 , F02M47/02 , F02M51/06 , F02M59/46 , F02M61/20 , F02M63/00 , F16K31/02 , F02M45/00
CPC分类号： F02M63/0026 , F02M47/027 , F02M63/0035 , F02M2200/706 , F02M2547/003
摘要： A valve for controlling fluids which, for its actuation, is provided with a fluid-filled coupling chamber which can be brought to high pressure by virtue of the fact that the valve is disposed between an actuator piston of a piezoelectric actuator and a piston that actuates a valve member and it is used for force and path transmission. To compensate for a leakage in the coupling chamber, a filling valve is provided, which is disposed on the piston that actuates the valve member and is switched by this piston with each stroke of the device. In this manner, the coupling chamber contains a largely constant volume and can also compensate for slight fill level changes caused by temperature differences. The valve is designated for use in fuel injection devices for internal combustion engines of motor vehicles.
摘要翻译： 一种用于控制流体的阀，其用于其致动设置有流体填充的联接室，其可以由于阀设置在致动器的致动器活塞和致动器的活塞之间而被带到高压 阀构件，用于力和路径传输。 为了补偿联接室中的泄漏，设置了一个填充阀，其设置在致动阀构件的活塞上并且通过该装置的每个行程被该活塞切换。 以这种方式，耦合室包含大体恒定的体积，并且还可以补偿由温差引起的轻微的填充水平变化。 该阀被指定用于机动车内燃机的燃料喷射装置。
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