公开(公告)号：US07419103B2

公开(公告)日：2008-09-02

申请号：US11344099

申请日：2006-02-01

申请人： Thomas Pauer

发明人： Thomas Pauer

IPC分类号： F02M47/02 ,  B05B1/30 ,  B05B1/08

CPC分类号： F02M63/0061 ,  F02M51/0603 ,  F02M2200/703 ,  F02M2200/704 ,  F02M2200/705

摘要： A fuel injector with direct needle control has a nozzle needle guided in a nozzle body, and an actuator and a hydraulic pressure boosting unit that has an actuator pressure boosting piston connected to the actuator and a nozzle needle pressure boosting piston connected to the nozzle needle. The actuator pressure boosting piston and the nozzle needle pressure boosting piston both act on a coupler chamber. The nozzle needle pressure boosting piston contains a cylindrical chamber in which a control piston is axially guided, whose coupler chamber pressure surface is exposed to the coupler chamber and whose differential pressure chamber pressure surface is exposed to an inner differential pressure chamber contained in the cylindrical chamber. At its end oriented away from the coupler chamber, the nozzle needle pressure boosting piston is associated with an outer differential pressure chamber that communicates with the inner differential pressure chamber via a hydraulic connection.

摘要翻译： 具有直接针控制的燃料喷射器具有在喷嘴体中引导的喷嘴针，以及具有连接到致动器的致动器增压活塞的致动器和液压增压单元，以及连接到喷嘴针的喷嘴针增压活塞。 致动器增压活塞和喷嘴针增压活塞都作用在联接器室上。 喷嘴针增压活塞包括圆柱形腔室，其中控制活塞被轴向引导，其联接器室压力表面暴露于耦合室，并且其压差腔室压力表面暴露于容纳在圆柱形腔室中的内部差压室 。 喷嘴针增压活塞的端部远离耦合室，其与通过液压连接与内部差压室连通的外部差压室相关联。

公开(公告)号：US07267096B2

公开(公告)日：2007-09-11

申请号：US10531174

申请日：2003-05-23

申请人： Friedrich Boecking

发明人： Friedrich Boecking

IPC分类号： F02B3/00 ,  F02B3/04

CPC分类号： F02M63/0029 ,  F02M45/086 ,  F02M47/027 ,  F02M63/0005 ,  F02M63/0061 ,  F02M2200/46

摘要： A fuel injection device for an internal combustion engine has a housing that contains a recess, which in turn contains two valve elements that are disposed coaxial to each other and each cooperating with a corresponding valve seat and are each associated with corresponding fuel outlet openings. In order for the fuel injection device to be as compact as possible, a shared valve device provided, which has at least three switched positions and influences the position of the valve elements.

摘要翻译： 一种用于内燃机的燃料喷射装置具有容纳凹部的壳体，所述凹部又包含彼此同轴设置并且与相应的阀座配合的两个阀元件，并且各自与相应的燃料出口开口相连。 为了使燃料喷射装置尽可能紧凑，设置有至少三个切换位置并影响阀元件的位置的共用阀装置。

公开(公告)号：US06935580B2

公开(公告)日：2005-08-30

申请号：US10361351

申请日：2003-02-10

申请人： Junru Azam ,  Edward R. Gillis

发明人： Junru Azam ,  Edward R. Gillis

IPC分类号： F02M45/08 ,  F02M59/46 ,  F02M63/00 ,  F16K31/06 ,  F16K31/383 ,  F02M45/00 ,  B05B1/30 ,  F02M39/00 ,  F02M59/00

CPC分类号： F16K31/0624 ,  F02M45/08 ,  F02M47/02 ,  F02M47/043 ,  F02M63/0007 ,  F02M63/0017 ,  F02M63/0047 ,  F02M63/0061 ,  F16K31/0634 ,  F16K31/383

摘要： Engineers have determined that the performance of fuel injectors, including those used in common rail fuel injection systems, can be increased, and undesirable emissions reduced, by controlling the mass flow rate of fuel injected into a combustion chamber during an injection event. While a number of fuel injectors have been developed that have limited rate shaping capabilities, the ability to produce some front end rate shapes has not been possible. In an effort to increase rate shaping capabilities, the present invention includes a valve assembly having at least one valve member that is movable between a plurality of positions to control fluid communication between a number of fluid inlets and outlets.

摘要翻译： 工程师已经确定，通过控制在喷射事件期间喷射到燃烧室中的燃料的质量流量，可以增加燃料喷射器的性能，包括在共轨燃料喷射系统中使用的燃料喷射器的性能，并且不期望的排放减少。 虽然已经开发了许多具有有限速率整形能力的燃料喷射器，但是产生一些前端速率形状的能力是不可能的。 为了提高速率成形能力，本发明包括一个阀组件，其具有至少一个阀构件，该阀构件可在多个位置之间移动，以控制多个流体入口和出口之间的流体连通。

公开(公告)号：US20040011887A1

公开(公告)日：2004-01-22

申请号：US10182530

申请日：2003-06-11

发明人： Friedrich Boecking

IPC分类号： F02M059/00

CPC分类号： F02M63/0017 ,  F02M45/04 ,  F02M47/027 ,  F02M57/023 ,  F02M59/368 ,  F02M59/466 ,  F02M59/468 ,  F02M61/205 ,  F02M63/0026 ,  F02M63/0035 ,  F02M63/0036 ,  F02M63/0045 ,  F02M63/0047 ,  F02M63/0049 ,  F02M63/0061 ,  F02M63/0063 ,  F02M2200/704

摘要： The fuel injection system has a pump work chamber (18), which is defined by a pump piston (14) and can be filled with fuel via a communication controlled by a control valve device (30; 130) and can be made to communicate with a relief chamber (31); during a given fuel injection, the pump work chamber (18) is disconnected from the relief chamber (31) by the control valve device (30; 130), and to terminate the fuel injection it is made to communicate with the relief chamber (31) by the control valve device (30; 130). A fuel injection valve (20) of the fuel injection system has an injection valve member (22), which controls at least one injection opening and is urged in the opening direction (28) by the pressure prevailing in the pump work chamber (18), counter to a closing force. To interrupt the fuel injection, a communication of the pump work chamber (18) with a pressure chamber (32) is also controlled by the control valve device (30; 130), and the injection valve member (22) is urged in the closing direction at least indirectly by the pressure prevailing in the pressure chamber (32).

摘要翻译： 燃料喷射系统具有泵工作室（18），其由泵活塞（14）限定，并且可以通过由控制阀装置（30; 130）控制的通信而被填充燃料，并且可以与 减压室（31）; 在给定的燃料喷射期间，泵工作室（18）通过控制阀装置（30; 130）与释放室（31）断开，并且终止燃油喷射，使其与排放室（31）连通 ）通过控制阀装置（30; 130）。 燃料喷射系统的燃料喷射阀（20）具有喷射阀构件（22），该喷射阀构件（22）控制至少一个喷射开口并且通过泵功能室（18）中的压力沿打开方向（28）被推压， 反对关闭力量。 为了中断燃料喷射，泵工作室（18）与压力室（32）的连通也由控制阀装置（30; 130）控制，并且喷射阀构件（22）被迫关闭 至少间接地通过压力室（32）中的压力方向。

公开(公告)号：US20030146295A1

公开(公告)日：2003-08-07

申请号：US10105482

申请日：2002-03-25

发明人： Ning Lei

IPC分类号： F02M047/02

CPC分类号： F01L9/02 ,  F01L2009/028 ,  F02M45/12 ,  F02M47/027 ,  F02M57/025 ,  F02M59/105 ,  F02M59/466 ,  F02M63/0017 ,  F02M63/004 ,  F02M63/0049 ,  F02M63/0061

摘要： A control apparatus for a unit fuel injector, the injector internally preparing fuel during an injection event at a pressure sufficient for injection into an internal combustion engine by means of an intensifier piston includes a selectively actuatable controller being in fluid communication with a source of pressurized actuating fluid and being in fluid communication with a substantially ambient actuating fluid reservoir, the controller having a first valve for selectively independently porting actuating fluid to and venting actuating fluid from the intensifier piston and a second valve for selectively independently porting actuating fluid to and venting actuating fluid from a needle valve during the injection event for controlling opening and closing of the needle valve. The control apparatus may also control an engine intake/exhaust valve. An engine valve actuator and methods of control are further included.

摘要翻译： 一种用于单元燃料喷射器的控制装置，所述喷射器在注射期间内以在足以通过增压器活塞喷射到内燃机中的压力下内部制备燃料包括可选择性致动的控制器，其与加压致动源流体连通 流体并且与基本上环境的致动流体储存器流体连通，所述控制器具有第一阀，用于选择性地独立地将致动流体移动到并从致动器活塞排出致动流体，以及用于选择性地独立地将致动流体输送到和使致动流体排出的第二阀 在注射事件期间从针阀控制针阀的打开和关闭。 控制装置也可以控制发动机进气/排气阀。 还包括发动机气门执行器和控制方法。

公开(公告)号：US20030080201A1

公开(公告)日：2003-05-01

申请号：US10181242

申请日：2002-09-30

发明人： Friedrich Boecking

IPC分类号： B29C045/20

CPC分类号： F02M63/0061 ,  F02M47/027 ,  F02M63/0007 ,  F02M63/0026 ,  F02M2200/701 ,  F02M2200/703

摘要： The invention relates to an injection device with an injector, a control valve (26) for opening and closing the injector by means of a control chamber (32), and an actuating element (14) for actuating the control valve (26), wherein at least one additional first valve (22) and one additional second valve (24) are provided, the additional first valve (22) can introduce a primary pressure into a pressure chamber (34) of the injector and into the control chamber (32), the additional second valve (24) can connect the pressure chamber (34) of the injector and the control chamber (32) to a leakage system (36), and the control valve (26), the additional first valve (22), and the additional second valve (24) can be actuated by the same actuating element (14). The invention also relates to a method for injecting fluid, which uses the injection device according to the invention.

摘要翻译： 本发明涉及具有喷射器的喷射装置，用于通过控制室（32）打开和关闭喷射器的控制阀（26）和用于致动控制阀（26）的致动元件（14），其中 提供至少一个附加的第一阀（22）和一个另外的第二阀（24），附加的第一阀（22）可以将一次压力引入喷射器的压力室（34）并进入控制室（32） ，附加的第二阀（24）可将喷射器的压力室（34）和控制室（32）连接到泄漏系统（36），并且控制阀（26），附加的第一阀（22） 并且附加的第二阀（24）可以由相同的致动元件（14）致动。 本发明还涉及使用根据本发明的注射装置的注射流体的方法。

公开(公告)号：US06471142B1

公开(公告)日：2002-10-29

申请号：US09540254

申请日：2000-03-31

申请人： Malcolm David Dick Lambert

发明人： Malcolm David Dick Lambert

IPC分类号： F02M4702

CPC分类号： F02M63/0061 ,  F02M45/08 ,  F02M45/083 ,  F02M45/086 ,  F02M45/12 ,  F02M47/027 ,  F02M61/08 ,  F02M61/161 ,  F02M63/0015 ,  F02M63/0026 ,  F02M63/0064 ,  F02M2200/21

摘要： A fuel injector comprising a valve needle slidable within a first bore, a surface associated with the valve needle being exposed to the fuel pressure within a first control chamber and movement of the valve needle away from the valve needle seating being limited by a moveable stop member. The stop member has a surface exposed to fuel pressure within a second control chamber. The fuel injector also includes a control valve arrangement for controlling the fuel pressure within the first and second control chambers to control movement of the valve needle and the stop member. The invention also relates to a fuel injector in which the control valve arrangement is arranged to permit the rate of valve needle movement away from the valve needle seating to be varied, in use.

摘要翻译： 一种燃料喷射器，包括可在第一孔内滑动的阀针，与所述阀针相关联的表面暴露于第一控制室内的燃料压力，并且所述阀针远离所述阀针座的移动受到可动止动件限制 。 止动构件具有在第二控制室内暴露于燃料压力的表面。 燃料喷射器还包括用于控制第一和第二控制室内的燃料压力以控制阀针和止动件的运动的控制阀装置。 本发明还涉及一种燃料喷射器，其中控制阀装置被布置成允许在使用中阀针移动离开阀针座以变化。

公开(公告)号：US6065450A

公开(公告)日：2000-05-23

申请号：US53959

申请日：1998-04-02

申请人： Shikui K. Chen ,  Gregory W. Hefler

发明人： Shikui K. Chen ,  Gregory W. Hefler

IPC分类号： F02G5/00 ,  F02M45/04 ,  F02M47/02 ,  F02M47/04 ,  F02M57/02 ,  F02M59/10 ,  F02M59/36 ,  F02M59/46 ,  F02M63/00 ,  F02M63/02 ,  F02M37/04

CPC分类号： F02G5/00 ,  F02M45/04 ,  F02M47/027 ,  F02M47/043 ,  F02M57/025 ,  F02M59/105 ,  F02M59/366 ,  F02M59/466 ,  F02M63/0017 ,  F02M63/0029 ,  F02M63/0042 ,  F02M63/0045 ,  F02M63/0049 ,  F02M63/0061 ,  F02B2275/14 ,  F02M2200/21 ,  F02M2200/502 ,  Y02T10/123 ,  Y02T10/166

摘要： A fuel injection system includes a plurality of hydraulically actuated fuel injectors with direct control needle valves. Each injector has an injector body that defines an actuation fluid inlet, a fuel supply passage and a needle control chamber. A needle valve member is movably mounted in the injector body and has a closing hydraulic surface exposed to pressure in the needle control chamber. Each injector also includes a relatively slow moving actuation fluid control valve member and a relatively fast moving needle control valve member. A source of low pressure fluid is connected to the fuel supply passage, and a source of high pressure fluid is connected to the actuation fluid inlet.

摘要翻译： 燃料喷射系统包括具有直接控制针阀的多个液压致动燃料喷射器。 每个喷射器具有限定致动流体入口，燃料供应通道和针控制室的喷射器主体。 针阀构件可移动地安装在喷射器主体中并且具有暴露于针控制室内的压力的关闭液压表面。 每个喷射器还包括相对缓慢移动的致动流体控制阀构件和相对快速移动的针控制阀构件。 低压流体源连接到燃料供应通道，并且高压流体源连接到致动流体入口。

公开(公告)号：US6059203A

公开(公告)日：2000-05-09

申请号：US146028

申请日：1998-09-03

申请人： James J. Streicher ,  David E. Martin ,  Jeffrey R. Ries

发明人： James J. Streicher ,  David E. Martin ,  Jeffrey R. Ries

IPC分类号： F02M47/02 ,  F02M57/02 ,  F02M59/46 ,  F02M61/16 ,  F02M63/00 ,  F02M59/00

CPC分类号： F02M63/0049 ,  F02M47/027 ,  F02M57/02 ,  F02M57/023 ,  F02M59/466 ,  F02M61/168 ,  F02M63/0043 ,  F02M63/0061 ,  Y10T137/86919

摘要： A valve assembly includes a first body with a first conical valve seat and a locating bore centered about a first axis. A second body is press fit attached to the first body and has a second conical valve seat with a second axis positioned in opposition to the first conical valve seat. An elongated valve member with a centerline has an upper conical valve surface and a lower conical valve surface trapped between the first conical valve seat and the second conical valve seat. A guide portion of the elongated valve member moves in a guide bore defined by one of the first body and the second body. The first axis, the second axis and the centerline are concentrically linked via the press fit attachment of the second body in the locating bore of the first body. The valve assembly is preferably utilized as a needle control valve assembly in a fuel injector.

摘要翻译： 阀组件包括具有第一锥形阀座的第一主体和以第一轴为中心的定位孔。 第二主体压配合附接到第一主体并且具有第二锥形阀座，第二轴与第一锥形阀座相对定位。 具有中心线的细长阀构件具有被截留在第一锥形阀座和第二锥形阀座之间的上锥形阀表面和下锥形阀表面。 细长阀构件的引导部分在由第一主体和第二主体中的一个限定的引导孔中移动。 第一轴线，第二轴线和中心线通过第二主体的压配合附件同心地连接在第一主体的定位孔中。 阀组件优选地用作燃料喷射器中的针控制阀组件。

公开(公告)号：US5826562A

公开(公告)日：1998-10-27

申请号：US768014

申请日：1996-12-13

申请人： Shikui K. Chen ,  Gregory W. Hefler

发明人： Shikui K. Chen ,  Gregory W. Hefler

IPC分类号： F02G5/00 ,  F02M45/04 ,  F02M47/02 ,  F02M57/02 ,  F02M59/10 ,  F02M59/36 ,  F02M59/46 ,  F02M63/00 ,  F02M7/00 ,  F15B15/22

CPC分类号： F02G5/00 ,  F02M45/04 ,  F02M47/027 ,  F02M47/043 ,  F02M57/025 ,  F02M59/105 ,  F02M59/366 ,  F02M59/466 ,  F02M63/0017 ,  F02M63/0029 ,  F02M63/0042 ,  F02M63/0045 ,  F02M63/0049 ,  F02M63/0061 ,  F02B2275/14 ,  F02M2200/21 ,  F02M2200/502 ,  Y02T10/123 ,  Y02T10/166

摘要： A hydraulically-actuated piston and barrel assembly includes a barrel defining an actuation fluid cavity and a piston bore, which includes an upper bore and a lower bore. A stepped piston is slidably received in the piston bore and moveable between a retracted position and an advanced position. The stepped top of the piston includes a first area that is separate from a second area. The first area and the upper bore define an upper cavity connected to the actuation fluid cavity through a relatively unrestricted flow area, when the piston is in its retracted position. The second area and the lower bore define a lower cavity connected to the actuation fluid cavity through a relatively restricted flow area when the piston is in its retracted position. The first area is exposed to fluid pressure in the upper cavity and the second area is exposed to fluid pressure in the lower cavity over a portion of the piston's movement from its retracted position toward its advanced position. One of the piston or the barrel, or both, further define a restricted passage that includes a restricted flow area connecting the actuation fluid cavity to the lower cavity. The disclosure also includes a description of a hydraulically-actuated fuel injector that incorporates the piston and barrel assembly described above.

摘要翻译： 液压致动的活塞和桶组件包括限定致动流体腔和活塞孔的筒，其包括上孔和下孔。 阶梯式活塞可滑动地容纳在活塞孔中并可在缩回位置和前进位置之间移动。 活塞的台阶顶部包括与第二区域分开的第一区域。 当活塞处于其缩回位置时，第一区域和上部孔通过相对不受限制的流动区域限定连接到致动流体腔的上腔体。 当活塞处于其缩回位置时，第二区域和下部孔口通过相对受限的流动区域限定连接到致动流体腔体的下腔体。 第一区域暴露于上腔体中的流体压力，并且第二区域在活塞的运动的一部分从其缩回位置向其前进位置暴露于下腔中的流体压力。 活塞或筒体中的一个或两者进一步限定限制通道，该通道包括将致动流体腔连接到下部空腔的限制流动区域。 本公开还包括结合上述活塞和筒组件的液压致动燃料喷射器的描述。