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公开(公告)号：EP2732162B1
公开(公告)日：2019-02-20
申请号：EP12729120.1
申请日：2012-06-21
申请人： Robert Bosch GmbH
发明人： BOEHLAND, Peter , NENTWIG, Godehard
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公开(公告)号：EP2603688B1
公开(公告)日：2018-09-12
申请号：EP11733843.4
申请日：2011-07-18
申请人： Robert Bosch GmbH
CPC分类号： F01N3/2066 , F01N2610/02 , F01N2610/11 , F01N2610/1453 , F02M45/08 , F02M45/10 , F02M63/0054 , F02M69/041 , F02M2200/21 , Y02T10/24
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公开(公告)号：EP1727977B1
公开(公告)日：2008-03-19
申请号：EP05701507.5
申请日：2005-01-13
申请人： ROBERT BOSCH GMBH
IPC分类号： F02M45/08
CPC分类号： F02M45/086 , F02M47/027 , F02M63/0026 , F02M2200/46
摘要： The invention relates to a fuel-injection valve comprising a nozzle module (12). An outer nozzle needle (24), which co-operates with a first injection orifice (32) and is surrounded by a high-pressure chamber (20) that is connected to a fuel-supply channel (62) and an inner nozzle needle (26), which co-operates with at least one second injection orifice (34) and is guided in a channel that axially penetrates the outer nozzle needle (24), are configured in said module to be axially displaced. The fuel-injection valve also comprises a valve-type valve control module (12), which controls the fluid pressure prevailing in a valve control chamber (36) that is equipped with an input throttle (64) and an output throttle (68). The level of the fluid pressure defines the position of the outer nozzle needle (24) and the inner nozzle needle (26). The outer nozzle needle (24) has at least one transverse channel (46), via which fuel can be conducted from the high-pressure chamber (20) to the periphery and the inner pressure stage (50) of the inner nozzle needle (26).
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公开(公告)号：EP1387939A1
公开(公告)日：2004-02-11
申请号：EP02726069.4
申请日：2002-03-22
申请人： ROBERT BOSCH GMBH
CPC分类号： F02M45/086 , F02M47/027 , F02M2200/46
摘要： The invention relates to a fuel injection valve for internal combustion engines, comprising a housing (1), in which a piston-shaped outer valve needle (10) is arranged in a longitudinally displaceable manner in a bore (3). Said valve needle cooperates with a valve seat (13) configured on the end of the bore (3) located on the combustion chamber side in order to control at least one injection port (7). A control chamber (24) is configured in the housing (1), wherein pressure in the control chamber (24) can be regulated by a valve (33). As a result of the pressure in the control chamber (24), a closing force is exerted at least indirectly upon the outer valve needle (10) in the direction of the valve seat (13). At least one pressure surface (9; 101) is configured in the outer valve needle (10). An inner valve needle (12) is guided in the outer valve needle (10), which controls at least one additional injection port (7) on the valve seat (13) and which is impinged upon by the pressure in the control chamber (24) at least indirectly in the direction of the valve seat (13).
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公开(公告)号：EP2603688A1
公开(公告)日：2013-06-19
申请号：EP11733843.4
申请日：2011-07-18
申请人： Robert Bosch GmbH
CPC分类号： F01N3/2066 , F01N2610/02 , F01N2610/11 , F01N2610/1453 , F02M45/08 , F02M45/10 , F02M63/0054 , F02M69/041 , F02M2200/21 , Y02T10/24
摘要： The invention relates to an injection device (2, 3) designed in particular for injecting a fluid into the exhaust tract (80) of an internal combustion engine, having a flexible membrane (30) mechanically connected to an armature (32) that can be displaced between at least one intake position and at least one injection position; an elastic element (36) designed and arranged for pressing the armature (32) in the direction of an injection position; and an actuator designed and arranged so that the armature (32) can be displaced from an injection position in the direction of an intake position against the force of the elastic element (36) by activating the actuator.
摘要翻译： 本发明涉及一种特别设计用于将流体喷射到内燃机的排气管道（80）中的喷射装置（2,3），该喷射装置具有机械地连接到衔铁（32）的柔性膜（30），柔性膜（30）可以是 在至少一个进入位置和至少一个注射位置之间移位; 一个弹性元件（36），该弹性元件（36）被设计和布置成用于沿着注射位置的方向按压所述电枢（32） 以及致动器，所述致动器被设计和布置成使得电枢（32）能够通过致动致动器克服弹性元件（36）的力而从进入位置的方向上的喷射位置移动。
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6.发明公开EINSPRITZVORRICHTUNG ZUM EINBRINGEN EINER HARNSTOFFLÖSUNG IN DEN ABGASSTRANG EINER BRENNKRAFTMASCHINE 有权注射装置用于将尿素溶液到排气STRAND内燃机
公开(公告)号：EP2603680A1
公开(公告)日：2013-06-19
申请号：EP11733852.5
申请日：2011-07-19
申请人： Robert Bosch GmbH
CPC分类号： F02M47/025 , F01N3/20 , F01N3/206 , F01N3/2066 , F01N3/36 , F01N2610/1453 , F02M7/02 , F02M47/02 , F02M47/027 , F02M57/027 , Y02T10/24
摘要： The invention relates to an injection device (1), designed in particular for injecting fluid into an exhaust tract of an internal combustion engine, having a valve needle (14), an injection chamber (12) having at least one injection opening (44), and a control chamber (20). The injection device (1) is designed such that a pressure differential between the injection chamber (12) and the control chamber (20) brings about a displacement of the valve needle (14) between an open position in which a fluid flow through the injection opening (44) from the injection chamber (12) is released, and a closed position, in which the injection opening (44) is closed off. The injection chamber (22) and the control chamber (20) are hydraulically connected to an inlet (40, 42; 9), such that a pressure rise in the inlet (40, 42; 9) results in a pressure rise in the injection chamber (12), and a pressure rise in the control chamber (20) delayed in time relative to the pressure rise in the injection chamber (12), and said pressure differential brings about a displacement of the valve needle (14) from the closed position into an open position.
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公开(公告)号：EP2603679A1
公开(公告)日：2013-06-19
申请号：EP11733845.9
申请日：2011-07-18
申请人： Robert Bosch GmbH
IPC分类号： F01N3/20
CPC分类号： F02M47/06 , F01N3/2066 , F01N2610/1453 , F02M47/025 , F02M57/027 , F02M63/0028 , Y02T10/24
摘要： The invention relates to an injection device (2), in particular for injecting fluid into an exhaust tract of an internal combustion engine, having a valve unit which comprises a valve needle (6), an injection chamber (38) having at least one injection opening (8), and a control chamber (36), wherein the injection device (2) is designed so that a pressure differential between the injection chamber (38) and the control chamber (36) brings about a displacement of the valve needle (6) between an open position in which the valve needle (6) releases a fluid flow through the injection opening (8), and a closed position in which the valve needle (6) closes off the injection opening (8). The injection device (2) also has a pump unit integrated in the injection device (2). The pump unit is designed so as to draw in fluid from the fluid inlet (32) during operation and to provide said fluid to the valve unit under increased pressure.
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公开(公告)号：EP1654454B1
公开(公告)日：2006-12-13
申请号：EP04738751.9
申请日：2004-06-22
申请人： ROBERT BOSCH GMBH
CPC分类号： F02M63/0005 , F02M45/086 , F02M47/027 , F02M63/0007 , F02M2200/46
摘要： A fuel injection device (20) for a combustion engine comprises a first valve element (36) with a pressure surface (38) that acts in an opening direction. An impinging device (50) acts in a closing direction. A second valve element (34) comprises a hydraulic control surface (58), which acts in the closing direction and which delimits a hydraulic control space (60). A corresponding impinging device acts in an opening direction. In addition, a high-pressure connection (24) is provided. The invention provides that the fuel injection device (20) has an additional valve device (66) that, in a first final position, connects the pressure space (40) only to the low pressure connection (28) and connects the control space (60) only to the high pressure connection (24). In a second final position, the additional valve device (66) connects the pressure space (40) only to the high pressure connection (24) and separates the control space (60) essentially from the high pressure connection (24). In an intermediate position, the pressure space (40) is connected only to the high pressure connection (24), and the control space (60) is simultaneously connected to the high pressure connection (24) and to the low pressure connection (28).
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公开(公告)号：EP1727977A1
公开(公告)日：2006-12-06
申请号：EP05701507.5
申请日：2005-01-13
申请人： ROBERT BOSCH GMBH
IPC分类号： F02M45/08
CPC分类号： F02M45/086 , F02M47/027 , F02M63/0026 , F02M2200/46
摘要： The invention relates to a fuel-injection valve comprising a nozzle module (12). An outer nozzle needle (24), which co-operates with a first injection orifice (32) and is surrounded by a high-pressure chamber (20) that is connected to a fuel-supply channel (62) and an inner nozzle needle (26), which co-operates with at least one second injection orifice (34) and is guided in a channel that axially penetrates the outer nozzle needle (24), are configured in said module to be axially displaced. The fuel-injection valve also comprises a valve-type valve control module (12), which controls the fluid pressure prevailing in a valve control chamber (36) that is equipped with an input throttle (64) and an output throttle (68). The level of the fluid pressure defines the position of the outer nozzle needle (24) and the inner nozzle needle (26). The outer nozzle needle (24) has at least one transverse channel (46), via which fuel can be conducted from the high-pressure chamber (20) to the periphery and the inner pressure stage (50) of the inner nozzle needle (26).
摘要翻译： 本发明涉及一种包括喷嘴模块（12）的燃料喷射阀。 与第一喷射孔（32）配合并且被连接到燃料供应通道（62）的高压室（20）和内部喷嘴针（32）围绕的外部喷嘴针（24） 与所述至少一个第二喷射孔（34）配合并且在轴向穿透所述外部喷嘴针（24）的通道中被引导的所述模块被构造成在所述模块中被轴向移位。 燃料喷射阀还包括阀式阀控制模块（12），其控制配备有输入节流阀（64）和输出节流阀（68）的阀控制腔室（36）中的流体压力。 流体压力的水平限定了外部喷嘴针（24）和内部喷嘴针（26）的位置。 外部喷嘴针（24）具有至少一个横向通道（46），通过该横向通道可将燃料从高压室（20）引导至内部喷嘴针（26）的周边和内部压力级（50） ）。
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公开(公告)号：EP2732162A1
公开(公告)日：2014-05-21
申请号：EP12729120.1
申请日：2012-06-21
申请人： Robert Bosch GmbH
发明人： BOEHLAND, Peter , NENTWIG, Godehard
CPC分类号： F04B17/04 , F01N3/206 , F01N3/2066 , F01N2610/14 , F01N2610/1433 , F01N2610/1453 , F04B53/126 , Y02T10/24
摘要： The invention relates to a device for conveying a fluid, in particular a working fluid or auxiliary fluid in an exhaust gas aftertreament system (10), said device comprising a metering module (28). The metering module (28) comprises a nozzle (58) for introducing the fluid in a metered manner and a pump piston (40) that pressurizes a pump chamber (54). A closing element (50) is provided in the pump chamber (54). Said closing element lies in the flow path of the fluid and can be actuated from outside of the pump chamber (54).
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