公开(公告)号：US20040155123A1

公开(公告)日：2004-08-12

申请号：US10755101

申请日：2004-01-09

发明人： Dirk Baranowski ,  Wendelin Klugl ,  Gerd Schmutzler ,  Joachim Wagner

IPC分类号： F02M059/00

CPC分类号： F02M47/027 ,  F02M2200/21

摘要： The invention relates to an injection valve, comprising a control chamber (15) with a control piston (16) that is functionally linked with a nozzle needle (35). The control chamber (15) is linked, via an inlet throttle (13), with pressurized fuel, and with an outlet throttle (14) with a valve chamber (9). A servo valve (5) is disposed in the valve chamber (9), said servo valve opening a connection between the valve chamber (9) and a return element (40) depending on its position. The inventive injection valve further comprises a bypass throttle (12) that is interposed between the fuel feed line and the valve chamber.

摘要翻译： 本发明涉及一种注射阀，其包括具有与喷嘴针（35）功能性连接的控制活塞（16）的控制室（15）。 控制室（15）经由入口节流阀（13）与加压燃料连接，并且具有带有阀室（9）的出口节流阀（14）。 伺服阀（5）设置在阀室（9）中，所述伺服阀根据其位置打开阀室（9）和返回元件（40）之间的连接。 本发明的喷射阀还包括插入在燃料供给管线和阀室之间的旁路节流阀（12）。

公开(公告)号：US20040155121A1

公开(公告)日：2004-08-12

申请号：US10644858

申请日：2003-08-21

申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

发明人： Tetsushi Watanabe ,  Osamu Nishizawa ,  Mitsunori Nishida

IPC分类号： F02M059/00

CPC分类号： F02D41/20 ,  F02D2041/2051

摘要： A control device of a fuel injection valve is capable of performing a stable fuel injection even if voltage variation takes place in battery, and performing evacuation operation against error in switching element or auxiliary power supply. The control device includes: an auxiliary power supply 6 for stepping up voltage of main power supply 1; a first switching element 20 for performing rapid power supply from auxiliary power supply 6 to electromagnetic solenoid 27; a second switching element 24 for performing continuous power feed from main power supply 1 to electromagnetic solenoid 27, and implementing ON/OFF control to perform holding power feed; a third switching element 26 for interrupting current of these power feeds; and a control device for controlling the power feeds. Power feed is normally performed in order of rapid power feed, continuous power feed and hold power feed.

摘要翻译： 即使在电池中发生电压变化，燃料喷射阀的控制装置能够执行稳定的燃料喷射，并且进行开关元件或辅助电源的误差的排气操作。 控制装置包括：用于升压主电源1的电压的辅助电源6; 用于从辅助电源6向电磁螺线管27进行快速供电的第一开关元件20; 用于执行从主电源1到电磁螺线管27的连续供电的第二开关元件24，以及执行ON / OFF控制以执行保持馈电; 用于中断这些电力馈送电流的第三开关元件26; 以及用于控制供电的控制装置。 供电通常按照快速供电，连续供电和保持供电顺序执行。

公开(公告)号：US20040124275A1

公开(公告)日：2004-07-01

申请号：US10468451

申请日：2004-01-30

发明人： Detlev Potz ,  Wendelin Potz ,  Maike Sander-Potz ,  Thomas Kuegler ,  Predrag Nunic

IPC分类号： F02M059/00

CPC分类号： F02M57/023 ,  F02M45/086 ,  F02M2200/46

摘要： A fuel injection system having a housing (2), in which a pump piston (16) is disposed longitudinally movably, which piston positively displaces fuel from a pump work chamber (18) and delivers it to a pressure chamber (14). In a bore (42), an outer valve needle (44) is disposed longitudinally displaceably and cooperates with a valve seat, embodied on the end toward the combustion chamber of the bore (42), to control the opening of an outer row (70) of injection openings. The outer valve needle (44) experiences an opening force oriented away from the valve seat (48), as a result of the pressure in the pressure chamber (41), and a closing force, as a result of the force of an outer closing spring (52) disposed in an outer spring chamber (54). In the outer valve needle (44), an inner valve needle (46) is guided longitudinally displaceably, which likewise cooperates with the valve seat (48) to control an inner row (72) of injection openings. Not until the outer valve needle (44) lifts from the valve seat (48) does the inner valve needle (46) experience an opening force from the pressure in the pressure chamber (41) and a closing force from the force of an inner closing spring (62) disposed in an inner spring chamber (64); both in the outer spring chamber (54) and in the inner spring chamber (64), a low pressure always prevails (FIG. 1).

摘要翻译： 一种具有壳体（2）的燃料喷射系统，其中泵活塞（16）纵向移动地设置，所述活塞将来自泵工作室（18）的燃料积极地置换并将其输送到压力室（14）。 在孔（42）中，外阀针（44）纵向可移位地设置并与阀座配合，该阀座在朝向孔（42）的燃烧室的端部上实现，以控制外排（70）的开口 ）注射开口。 由于压力室（41）中的压力，外部阀针（44）经受取决于阀座（48）的打开力，并且由于外部闭合的力而产生闭合力 弹簧（52）设置在外弹簧室（54）中。 在外部阀针（44）中，内部阀针（46）纵向可移动地被引导，其同样与阀座（48）配合以控制喷射开口的内排（72）。 直到外阀针（44）从阀座（48）提升，内阀针（46）经受来自压力室（41）中的压力的​​打开力和来自内闭阀 弹簧（62）设置在内弹簧室（64）中; 在外弹簧室54和内弹簧室64中，低压始终占优势（图1）。

公开(公告)号：US20040124274A1

公开(公告)日：2004-07-01

申请号：US10467039

申请日：2004-01-06

发明人： Fevzi Yildirim ,  Guenther Hohl ,  Michael Huebel

IPC分类号： F02M059/00

CPC分类号： F02M61/08 ,  F02M51/0603 ,  F02M2200/315

摘要： A fuel injector (1) for the direct injection of fuel into the combustion chamber of an internal combustion engine encompasses a piezoelectric or magnetostrictive actuator (3), a valve needle (10) actuable by the actuator (3), the valve needle (10) cooperating with a valve-closure member (17) to form a sealing seat (25) together with a valve-seat member (18), and a restoring spring (20) by which the valve needle (10) is acted on in a closing direction. The valve needle (10) is pressure-equalized in that the force exerted by the fuel pressure on the valve needle (10) in the opening direction is approximately equal to the force exerted by the fuel pressure on the valve needle (10) in the closing direction.

摘要翻译： 用于将燃料直接喷射到内燃机的燃烧室中的燃料喷射器（1）包括压电或磁致伸缩致动器（3），由致动器（3）致动的阀针（10），阀针（10） ）与阀关闭构件（17）配合以与阀座构件（18）一起形成密封座（25），以及复位弹簧（20），通过该复位弹簧将阀针（10）作用在一个 关闭方向。 阀针（10）被压力相等，因为在打开方向上由燃料压力施加到阀针（10）上的力大致等于在阀针（10）上的燃料压力施加的力 关闭方向。

公开(公告)号：US20040069874A1

公开(公告)日：2004-04-15

申请号：US10645781

申请日：2003-08-22

发明人： Perry Robert Czimmek

IPC分类号： F02M059/00

CPC分类号： F02M61/167 ,  F02M51/0603 ,  F02M2200/9084

摘要： An apparatus and method of compensating for thermal expansion and tolerance variations (wear, brinelling, mounting distortion) in a fuel injector is provided. The apparatus includes a magneto-hydraulic thermal expansion compensator containing magnetically-active fluid positioned in operative contact with the fuel injector actuation element. A electromagnetic coil is provided proximate the magneto-hydraulic compensator. Magnetic flux generated by the electromagnetic coil causes the viscosity of the magnetically-active fluid within the magneto-hydraulic compensator to increase, causing the magneto-hydraulic compensator to become substantially rigid during actuation of the fuel injector.

摘要翻译： 提供了补偿燃料喷射器中的热膨胀和公差变化（磨损，布氏硬化，安装变形）的装置和方法。 该装置包括磁液压热膨胀补偿器，其包含与燃料喷射器致动元件工作接触的磁性活性流体。 在磁 - 液压补偿器附近提供电磁线圈。 由电磁线圈产生的磁通导致磁 - 液压补偿器内的磁性活性流体的粘度增加，使得磁 - 液压补偿器在燃料喷射器的致动期间变得基本上刚性。

公开(公告)号：US20040050978A1

公开(公告)日：2004-03-18

申请号：US10285581

申请日：2002-11-01

发明人： Koichi Sugiyama ,  Masaru Nekita ,  Yoshinori Yamashita

IPC分类号： F02M059/00

CPC分类号： F02M61/12 ,  F02M51/0682 ,  F02M61/165

摘要： An injection device satisfies the following conditions: 5 mmnullLanull10 mm, 0 mmnullLbnull1.0 mm, Lb

摘要翻译： 注射装置满足以下条件：5mm <= La <= 10mm，0mm≤Lb≤1.0mm，Lb

公开(公告)号：US20040046061A1

公开(公告)日：2004-03-11

申请号：US10433429

申请日：2003-06-04

发明人： Friedrich Boecking

IPC分类号： F02M059/00

CPC分类号： F02M63/0026 ,  F02M47/027 ,  F02M57/023 ,  F02M57/025 ,  F02M59/102 ,  F02M63/0043 ,  F02M63/0064

摘要： In a fuel injection system (1) for internal combustion engines, having a plurality of injection valves (4; 104), each provided in a respective fuel injection line (3), which valves each have one nozzle chamber (13), one control chamber (17; 117), one valve member (8; 108), which controls the injection openings (12) of the nozzle chamber (13) and which is actuatable counter to the action of a closing spring (10; 110) via a first control face (14), located in the nozzle chamber (13) and acting in the valve opening direction, and via a second control face (16; 116), located in the control chamber (17; 117) and acting in the valve closing direction, one piston (2), displaceable in the compression direction, which on its face end defines a first compression chamber (18), communicating with the injection line (3), for generating the injection pressure, one first valve (25) for controlling the pressure buildup in the first compression chamber (18), and one second valve (26) for controlling the pressure buildup in the control chamber (17; 117), according to the invention, the piston (2), with an annular shoulder (19), defines a second compression chamber (20) communicating with the control chamber (17; 117).

摘要翻译： 在用于内燃机的燃料喷射系统（1）中，具有多个喷射阀（4; 104），每个喷射阀分别设置在相应的燃料喷射管线（3）中，每个喷嘴具有一个喷嘴室（13），一个控制 腔室（17; 117），一个阀构件（8; 108），其控制喷嘴室（13）的喷射开口（12），并且其能够通过一个闭合弹簧（10; 110） 位于喷嘴室（13）中并沿阀打开方向作用的第一控制面（14），以及位于控制室（17; 117）中并作用在阀中的第二控制面（16; 116） 一个活塞（2），其在压缩方向上可位移，在其端部端部限定与注射管线（3）连通的用于产生注射压力的第一压缩室（18），一个第一阀门（25） 用于控制第一压缩室（18）中的压力累积，以及用于控制第二压缩室（18）的一个第二阀（26） 在控制室（17; 117），根据本发明，具有环形肩部（19）的活塞（2）限定与控制室（17; 117）连通的第二压缩室（20）。

公开(公告)号：US20040031863A1

公开(公告)日：2004-02-19

申请号：US10203978

申请日：2002-10-28

发明人： Detlev Potz ,  Friedrich Moser ,  Thomas Kuegler

IPC分类号： F02M059/00 ,  F02M063/00

CPC分类号： F02M61/168 ,  F02M45/12 ,  F02M61/042 ,  F02M61/12

摘要： A fuel injection valve with a valve body (1), which has a bore (3) that contains a piston-shaped valve member (5) in a longitudinally movable fashion, which valve member (5), with its end oriented toward the combustion chamber, controls the opening of at least one injection opening (17). The valve member (5) is guided in the bore (3) with a sealing section (105) oriented away from the combustion chamber and a guiding section (205) oriented toward the combustion chamber; between the sealing section (105) and the guiding section (205), the valve member (5) is encompassed by a first pressure chamber (9) that can be filled with fuel and between the guiding section (205) and the combustion chamber end, is encompassed by a second pressure chamber (19). In the guiding section (205) of the valve member (5), an annular collar (22) is provided, which constitutes the combustion chamber end of the guiding section (205) and has a side (37) oriented toward the combustion chamber and a side (36) oriented away from the combustion chamber. During the opening stroke motion of the valve member (5), the annular collar (22) emerges from a bore guiding section (203) and thus opens or connects the first pressure chamber (9) to the second pressure chamber (19). The annular collar (22) has a throttle connection (40) embodied on it, which connects the sides (36, 37) of the annular collar (22) to each other and thus produces a throttled connection from the first pressure chamber (9) to the second pressure chamber (19) (FIG. 1).

摘要翻译： 一种具有阀体（1）的燃料喷射阀，其具有以纵向移动的方式包含活塞形阀构件（5）的孔（3），该阀构件（5）的端部朝向燃烧 控制至少一个注射开口（17）的开口。 阀构件（5）在孔（3）内被引导离开燃烧室的密封部分（105）和朝向燃烧室定向的引导部分（205）; 在所述密封部分（105）和所述引导部分（205）之间，所述阀构件（5）被第一压力室（9）包围，所述第一压力室可以填充燃料，并且在所述引导部分（205）和所述燃烧室端 由第二压力室（19）包围。 在阀构件（5）的引导部分（205）中，设置环形套环（22），其构成引导部分（205）的燃烧室端部，并且具有朝向燃烧室的侧面（37） 远离燃烧室的侧面（36）。 在阀构件（5）的打开行程运动期间，环形套环（22）从孔引导部（203）露出，从而打开或连接第一压力室（9）到第二压力室（19）。 环形套环（22）具有在其上实现的节流连接件（40），其将环形套环（22）的侧面（36,37）彼此连接，从而从第一压力室（9）产生节流连接， 到第二压力室（19）（图1）。

公开(公告)号：US20040016830A1

公开(公告)日：2004-01-29

申请号：US10420766

申请日：2003-04-23

申请人： Robert Bosch GmbH

发明人： Burkhard Boos ,  Stefan Kieferle ,  Matthias Distel ,  Achim Koehler ,  Sascha Ambrock

IPC分类号： F02M059/00

CPC分类号： F02D41/3845 ,  F02D2041/2027 ,  F02M59/06 ,  F02M59/08 ,  F02M59/102 ,  F02M59/366 ,  F02M59/466 ,  F02M63/0225

摘要： The fuel injection system has a high-pressure pump, by which fuel is pumped into a reservoir, with which injectors disposed on cylinders of the engine communicate. A feed pump pumps fuel out of a fuel tank to the high-pressure pump and a fuel metering device triggered by a control unit and disposed between the feed pump and the high-pressure pump controls the fuel quantity delivered to the high-pressure pump. The fuel metering device is formed by a clocking valve, which is opened and closed in pulse-width-modulated fashion by the control unit, and the fuel quantity delivered to the intake side of the high-pressure pump is proportional to the opening duration of the clocking valve.

摘要翻译： 燃料喷射系统具有高压泵，通过该高压泵将燃料泵送到储存器中，喷射器配置在发动机的气缸上。 进料泵将燃料从燃料箱泵送到高压泵，并且由控制单元触发并设置在进料泵和高压泵之间的燃料计量装置控制输送到高压泵的燃料量。 燃料计量装置由控制单元以脉冲宽度调制的方式打开和关闭的计时阀形成，并且输送到高压泵的进气侧的燃料量与打开持续时间成正比 时钟阀。

公开(公告)号：US20040011891A1

公开(公告)日：2004-01-22

申请号：US10362886

申请日：2003-08-01

发明人： Friedrich Boecking

IPC分类号： F02M059/00

CPC分类号： F02M63/0007 ,  F02M47/027 ,  F02M61/205 ,  F02M63/0015 ,  F02M63/0026 ,  F02M63/0043 ,  F02M63/0061

摘要： The invention relates to a fuel injector for injecting fuel into the combustion chamber of an internal combustion engine, with a nozzle needle (3). The pressure increase/pressure decrease in the control chamber (2) can be used to actuate this nozzle needle (3) in the injector body (1) between a position that unblocks injection openings and a position that closes injection openings. The leakage oil side of the control chamber (2) can be acted on via a pressure relief line (6) containing an outlet throttle (7) and via a high-pressure side inlet (8) with an inlet throttle (9), which simultaneously acts on a nozzle chamber (15) in the injector body (1) with pressurized fuel. The pressure change in the control chamber (2) of the injector body (1) takes place by means of a first on-off valve (21) and an additional on-off valve (27), wherein the first on-off valve (21) has an initial stroke (33) in the switching direction (32).

摘要翻译： 本发明涉及一种用于将燃料喷射到具有喷嘴针（3）的内燃机的燃烧室中的燃料喷射器。 控制室（2）中的压力增加/压力降低可以用于在喷射器主体（1）中的打开喷射开口的位置和关闭喷射开口的位置之间致动该喷嘴针（3）。 控制室（2）的泄漏油侧可以经由包含出口节流阀（7）的压力释放管线（6）和经由具有入口节流阀（9）的高压侧入口（8）起作用， 同时以加压燃料作用在喷射器主体（1）中的喷嘴室（15）上。 喷射器主体（1）的控制室（2）中的压力变化通过第一开关阀（21）和附加的开关阀（27）进行，其中第一开关阀 21）在切换方向（32）上具有初始行程（33）。