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公开(公告)号：EP2265812B1
公开(公告)日：2013-03-27
申请号：EP08873472.8
申请日：2008-12-05
申请人： Robert Bosch GmbH
CPC分类号： F02M61/16 , F02M55/004 , F02M59/442 , F02M2200/21 , F04B53/02 , F04B53/164 , F04F7/00
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公开(公告)号：EP1407134B1
公开(公告)日：2005-01-26
申请号：EP02727273.1
申请日：2002-03-27
申请人： ROBERT BOSCH GMBH
IPC分类号： F02M61/16
CPC分类号： F02M61/205 , F02M47/02 , F02M61/10 , F02M61/16 , F02M61/168 , F02M2200/16 , F02M2200/8076 , F02M2200/9015
摘要： The invention relates to a high-pressure fuel device comprising a housing (1) with a first high-pressure body (3) and a second high-pressure body (5), which lie adjacent to one another on a bearing surface (30). A high-pressure chamber (23), which is configured in the housing (1) and contains a high pressure of fuel, at least temporarily, penetrates the bearing surface (30). A partition part (7) with a longitudinal axis (15), surrounds the housing (1), at least in the area of the bearing surface (30), in such a way that an oil leakage chamber (32), which is sealed off from the exterior, is formed between the partition part (7) and the housing (1).
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公开(公告)号：EP0543965A1
公开(公告)日：1993-06-02
申请号：EP92911473.0
申请日：1992-06-10
申请人： ROBERT BOSCH GMBH
发明人： RUTHARDT, Siegfried
CPC分类号： F02D1/10 , F02M59/447
摘要： Dans des régulateurs centrifuges de tous régimes qui commandent en fonction de la pression d'admission la pleine charge de la pompe correspondante d'injection de carburant, il faut réduire l'admission de démarrage à des températures élevées de fonctionnement du moteur à combusion interne afin d'éviter l'émission soudaine de fumée lors du démarrage à chaud. A cet effet, le régulateur de régime comprend outre un support de base (26) un support supplémentaire (28). Le support supplémentaire (28) est monté rotatif sur le support de base (26) et peut pivoter entre deux butées de régulation (31, 32). Outre une butée de pleine charge (27) située sur le support de base (26), le support supplémentaire (28) comprend une butée supplémentaire (33) déplacée transversalement au sens de rotation du support de base (26) en fonction de la pression d'admission par une unité d'adaptation (41). La butée de régulation (31) forme un organe de régulation (31) à commande thermique qui place la butée supplémentaire (33) de sorte qu'un organe capteur (39) dont la position est déterminante pour le dosage de carburant pousse la butée supplémentaire (33) hors de la zone de détection de l'organe capteur (39) à des températures réduites de fonctionnement du moteur à combustion interne, ce qui permet d'admettre les doses élevées requises de carburant, alors qu'en cas de démarrage à chaud, la butée supplémentaire (33) pénètre dans la zone de détection de l'organe capteur (39), limitant les doses de carburant et empêchant l'émission soudaine de fumée lors du démarrage à chaud.
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公开(公告)号：EP1869310B1
公开(公告)日：2008-11-26
申请号：EP06724919.3
申请日：2006-03-03
申请人： ROBERT BOSCH GMBH
发明人： RUTHARDT, Siegfried
CPC分类号： F02M51/0603 , F02M55/004 , F02M61/12 , F02M61/168 , F02M2200/16 , F02M2200/703 , F02M2200/8076 , F02M2200/9053
摘要： A fuel injection valve (1) which serves as injector for fuel injection systems of air-compressing, compression-ignition internal combustion engines has a valve housing (4). The valve housing (4) is composed of a first housing part (2) and a second housing part (3) which are connected to one another in a connecting region (60). In order to improve the strength of the connection in relation to the pressure of the fuel which prevails in an inner space (12), the housing wall (61) of the first housing part (2) is supported in the connecting region (60) on the housing wall (65) of the second housing part (3), and the housing wall (65) of the second housing part (3) is of reinforced design in the connecting region (60).
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公开(公告)号：EP1636483B1
公开(公告)日：2007-07-18
申请号：EP04721823.5
申请日：2004-03-19
申请人： ROBERT BOSCH GMBH
CPC分类号： F02M47/027 , F02M57/024 , F02M63/0026 , F02M2200/215 , F02M2200/703
摘要： Disclosed is a valve for controlling liquids, comprising a retaining member (31) that is provided with an accommodating space (32) inside which an especially piezoelectric actuator unit and a hydraulic coupling module (34) are arranged. Said coupling module (34) encompasses at least one positioning piston (37) and at least one actuating piston (39) that is effectively connected to the positioning piston (37) via a hydraulic coupler (38) and actuates a valve-closing member (27) which cooperates with at least one valve seat (29, 30) and blocks a fluid from flowing from a valve chamber (25) to a backflow duct (45) in the closed position. The positioning piston (37) is directed within the accommodating space (32) by means of a seal (50).
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公开(公告)号：EP1636483A1
公开(公告)日：2006-03-22
申请号：EP04721823.5
申请日：2004-03-19
申请人： ROBERT BOSCH GMBH
CPC分类号： F02M47/027 , F02M57/024 , F02M63/0026 , F02M2200/215 , F02M2200/703
摘要： Disclosed is a valve for controlling liquids, comprising a retaining member (31) that is provided with an accommodating space (32) inside which an especially piezoelectric actuator unit and a hydraulic coupling module (34) are arranged. Said coupling module (34) encompasses at least one positioning piston (37) and at least one actuating piston (39) that is effectively connected to the positioning piston (37) via a hydraulic coupler (38) and actuates a valve-closing member (27) which cooperates with at least one valve seat (29, 30) and blocks a fluid from flowing from a valve chamber (25) to a backflow duct (45) in the closed position. The positioning piston (37) is directed within the accommodating space (32) by means of a seal (50).
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公开(公告)号：EP1395748A1
公开(公告)日：2004-03-10
申请号：EP02735073.5
申请日：2002-05-21
申请人： ROBERT BOSCH GMBH
CPC分类号： F02M47/027 , F02M61/16 , F02M2200/16 , F02M2547/003
摘要： The invention relates to an injector for the injection of fuel into the combustion chamber of an internal combustion engine. The injector (1) comprises an injector housing (2) in which a pressure chamber (3) enclosing an insert (7) is embodied. The above may be filled with high pressure fuel by means of a high pressure inlet (21). A control chamber (25) is pressurised by means of the pressure chamber (3), defined by the insert (7), fixed in a drilling (6, 46) in the injector housing (2) and a valve component (26). The valve component (26) may be displaced by executing a stroke displacement (47) within the insert (7). A one-piece metallic sealing element (9) is arranged with a friction fit (14) around the periphery (8) of the insert (7). The sealing element (9) is pressurised with the high pressure in the pressure chamber (3).
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公开(公告)号：EP2694795A1
公开(公告)日：2014-02-12
申请号：EP12714655.3
申请日：2012-04-05
申请人： Robert Bosch GmbH
发明人： RODRIGUEZ-AMAYA, Nestor , RUTHARDT, Siegfried , RAPP, Holger , STOECKLEIN, Wolfgang , BERGHAENEL, Bernd , BEIER, Marco
CPC分类号： F02M57/005 , F02M47/027 , F02M2200/244 , F02M2200/247
摘要： The invention relates to a fuel injector for injecting fuel into the combustion chamber of an internal combustion engine, comprising a nozzle needle (1) that can carry out a stroke movement, by means of which at least one injection opening (5) can be released or closed, and comprising a control valve (2) for controlling the stroke movement of the nozzle needle (1). A hydraulic pressure in a control chamber (3) is changed dependent on the respective switch position of the control valve (2), said hydraulic pressure being applied to the nozzle needle (1) in the closing direction. The fuel injector also comprises a force or pressure sensor (4) with at least one sensor element made of a piezoelectric material for detecting characteristic pressure changes when opening and closing the nozzle needle. According to the invention, the force or pressure sensor (4) is arranged in a low-pressure region (6) of the fuel injector, and an axial force can be applied directly or indirectly to said sensor at least when closing the nozzle needle (2), said axial force being proportional to the hydraulic pressure in the control chamber (3). Furthermore, the force or pressure sensor (4) is preloaded directly or indirectly by a preloading element (7) in an axial manner with respect to a support plate (8) or a housing part (26).
摘要翻译： 本发明涉及一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射器，该燃料喷射器包括能够执行行程运动的喷嘴针（1），通过该喷嘴针（1）可以释放至少一个喷射口（5） 或关闭，并且包括用于控制喷嘴针（1）的冲程运动的控制阀（2）。 控制室（3）中的液压根据控制阀（2）的相应开关位置而改变，所述液压沿关闭方向施加到喷嘴针（1）。 燃料喷射器还包括力或压力传感器（4），其具有由压电材料制成的至少一个传感器元件，用于在打开和关闭喷嘴针时检测特征压力变化。 根据本发明，力或压力传感器（4）布置在燃料喷射器的低压区域（6）中，并且轴向力可以至少在关闭喷嘴针时直接或间接施加到所述传感器 2），所述轴向力与控制室（3）中的液压成比例。 此外，力或压力传感器（4）通过预加载元件（7）相对于支撑板（8）或壳体部分（26）以轴向方式直接或间接预加载。
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公开(公告)号：EP2652299A1
公开(公告)日：2013-10-23
申请号：EP11788127.6
申请日：2011-11-23
申请人： Robert Bosch GmbH
发明人： RODRIGUEZ-AMAYA, Nestor , RUTHARDT, Siegfried , STOECKLEIN, Wolfgang , BERGHAENEL, Bernd , BEIER, Marco , RAPP, Holger
IPC分类号： F02D41/20
CPC分类号： F02D41/30 , F02D41/20 , F02D41/2096 , F02D2041/1429 , F02D2041/2031 , F02D2041/2055 , F02D2041/2058
摘要： A method for operating a fuel injection system of an internal combustion engine is described. The fuel injection system has an injector for metering fuel into a combustion chamber of the internal combustion engine. The injector has an actuator, a control valve and a nozzle needle. In the method, the actuator is supplied a voltage and/or a current during an activation period. The control valve is set into a lifting motion by the actuator. The injector is opened and closed by the nozzle needle, using the lifting motion of the control valve. A further time period is ascertained. The further time period ends at the closing time of the nozzle needle. A function is ascertained, which links the activation period to the further time period. A shortest activation period, for which the nozzle needle opens and produces an injection, is ascertained with the aid of the function. An opening delay period (do1) of the nozzle needle is ascertained as a function of the shortest time period.
摘要翻译： 描述了用于操作内燃机的燃料喷射系统的方法。 燃料喷射系统具有用于将燃料计量到内燃机的燃烧室中的喷射器。 注射器具有致动器，控制阀和喷嘴针。 在该方法中，致动器在激活期间被提供电压和/或电流。 控制阀由致动器设定为提升运动。 使用控制阀的提升运动，喷嘴由喷嘴针打开和关闭。 确定进一步的时间。 另外的时间段在喷嘴针的关闭时间结束。 确定一个功能，将激活期与更长时间段相连接。 借助该功能确定喷嘴针打开并产生喷射的最短激活时间。 确定喷嘴针的打开延迟期（do1）作为最短时间的函数。
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公开(公告)号：EP2635784A1
公开(公告)日：2013-09-11
申请号：EP11771085.5
申请日：2011-10-12
申请人： Robert Bosch GmbH
发明人： RODRIGUEZ-AMAYA, Nestor , RUTHARDT, Siegfried , RAPP, Holger , STOECKLEIN, Wolfgang , BERGHAENEL, Bernd , BEIER, Marco
CPC分类号： G01R31/327 , F02D41/20 , F02D41/2438 , F02D41/247
摘要： A method is described for operating at least one magnetic switching element, at least one first connection of at least one sensor device being connected to at least one connection of a coil of the magnetic switching element, and the first connection or an additional connection of the sensor device being connected to a reference potential, and a measuring state being established in which at least one connection of the coil is essentially at least temporarily decoupled from the reference potential and/or from a source activating the coil, and at least one signal of at least one sensor of the sensor device being ascertained in the measuring state from at least one electrical potential at at least one connection of the coil.
摘要翻译： 描述了一种用于操作至少一个磁性开关元件的方法，至少一个传感器装置的至少一个第一连接被连接到磁性开关元件的线圈的至少一个连接，以及第一连接或第二连接 传感器设备连接到参考电位，并且建立测量状态，其中线圈的至少一个连接基本上至少暂时与参考电位和/或来自激活线圈的源暂时去耦，以及至少一个信号 传感器装置的至少一个传感器在测量状态下从线圈的至少一个连接处的至少一个电位确定。
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