公开(公告)号：EP2603680B1

公开(公告)日：2016-12-14

申请号：EP11733852.5

申请日：2011-07-19

申请人： Robert Bosch GmbH

发明人： DOEHRING, Jochen ,  RIPPER, Wolfgang ,  HANNEKE, Juergen ,  NENTWIG, Godehard

IPC分类号： F01N3/20 ,  F02M57/02

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

公开(公告)号：EP2726739A1

公开(公告)日：2014-05-07

申请号：EP12729121.9

申请日：2012-06-21

申请人： Robert Bosch GmbH

发明人： KNIS, Wolfram ,  PRIESSNITZ, Oliver ,  WALETZEK, Christoph ,  NENTWIG, Godehard

IPC分类号： F04B43/02

CPC分类号： F04B43/02

摘要： The invention relates to a working diaphragm (14) for the volumetric conveying of a fluid. In the installed state (28), the working diaphragm (14) is received between components (30, 38). The working diaphragm (14) is connected to an actuator (10, 12) for carrying out conveying strokes. The working diaphragm (14) is stabilized by a supporting element (18, 54) in the elastic region (26).

摘要翻译： 本发明涉及一种用于流体体积输送的工作隔膜（14）。 在安装状态（28）中，工作隔膜（14）被接收在部件（30,38）之间。 工作隔膜（14）连接到用于执行输送行程的致动器（10,12）。 工作隔膜（14）由弹性区域（26）中的支撑元件（18,54）稳定。

公开(公告)号：EP1636485B1

公开(公告)日：2009-01-14

申请号：EP04726421.3

申请日：2004-04-08

申请人： ROBERT BOSCH GMBH

发明人： KANNE, Sebastian ,  NENTWIG, Godehard

IPC分类号： F02M51/06 ,  F02M47/06

CPC分类号： F02M51/0603 ,  F02M2200/704

公开(公告)号：EP1654456A1

公开(公告)日：2006-05-10

申请号：EP04738653.7

申请日：2004-06-09

申请人： ROBERT BOSCH GMBH

发明人： BOEHLAND, Peter ,  MAGEL, Hans-Christoph ,  KANNE, Sebastian ,  NENTWIG, Godehard ,  BAUER, Michael

IPC分类号： F02M59/46 ,  F02M47/02 ,  F02M45/08 ,  F02M45/10

CPC分类号： F02M47/027 ,  F02M45/086 ,  F02M63/0026 ,  F02M63/0045 ,  F02M63/0061 ,  F02M2200/46

摘要： The invention relates to a fuel injection device (10) for an internal combustion engine, comprising two valve elements (16, 18), each of which is provided with a hydraulic control surface (32, 34) that is effective in the closing direction. A hydraulic control chamber (38) is assigned thereto. Additionally, a control valve (72) is provided that influences the pressure in the control chamber (38) while impingement units (20, 22) are provided which can act in the opening direction of the valve elements (16, 18). The hydraulic opening pressures of the valve elements (16, 18), which occur in the control chamber (38), are different. According to the invention, at least three different pressure levels can be adjusted in the control chamber (38) by means of the control valve (72), all valve elements (16, 18) being closed at a relatively high pressure level, one valve element (18) being open at an intermediate pressure level, and all valve elements (16, 18) being open at a relatively low pressure level.

摘要翻译： 用于内燃机的燃料喷射装置（10）技术领域本发明涉及一种用于内燃机的燃料喷射装置（10），其包括两个阀元件（16,18），每个阀元件设置有在关闭方向上有效的液压控制表面（32,34）。 液压控制室（38）被分配给它。 此外，设置控制阀（72），该控制阀（72）影响控制室（38）中的压力，同时设置可在阀元件（16,18）的打开方向上作用的冲击单元（20,22）。 在控制室（38）中出现的阀元件（16,18）的液压开启压力是不同的。 根据本发明，借助于控制阀（72）能够在控制室（38）中调节至少三个不同的压力水平，所有阀元件（16,18）均以相对较高的压力水平关闭，一个阀 元件（18）在中等压力水平下打开，并且所有阀元件（16,18）以相对低的压力水平打开。

公开(公告)号：EP1654454A1

公开(公告)日：2006-05-10

申请号：EP04738751.9

申请日：2004-06-22

申请人： ROBERT BOSCH GMBH

发明人： BOEHLAND, Peter ,  KANNE, Sebastian ,  NENTWIG, Godehard

IPC分类号： F02M45/08 ,  F02M47/02 ,  F02M63/00

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).

摘要翻译： 一种用于内燃机的燃料喷射装置（20）包括具有沿打开方向作用的压力表面（38）的第一阀元件（36）。 撞击装置（50）沿关闭方向作用。 第二阀元件（34）包括液压控制表面（58），该液压控制表面（58）在关闭方向上作用并限定液压控制空间（60）。 相应的撞击装置在打开方向上起作用。 另外，提供高压连接（24）。 本发明规定，燃料喷射装置（20）具有附加的阀装置（66），该附加的阀装置在第一最终位置仅将压力空间（40）连接至低压接头（28）并且将控制空间（60 ）仅限于高压连接（24）。 在第二最终位置中，附加阀装置66将压力空间40仅连接到高压连接部24并且将控制空间60基本上与高压连接部24分开。 在中间位置，压力空间（40）仅连接到高压接头（24），并且控制空间（60）同时连接到高压接头（24）和低压接头（28） 。

公开(公告)号：EP1654453A1

公开(公告)日：2006-05-10

申请号：EP04738750.1

申请日：2004-06-22

申请人： ROBERT BOSCH GMBH

发明人： KANNE, Sebastian ,  NENTWIG, Godehard

IPC分类号： F02M45/08 ,  F02M51/06 ,  F02M61/18

CPC分类号： F02M45/086 ,  F02M51/0603 ,  F02M61/18 ,  F02M2200/215 ,  F02M2200/46 ,  F02M2200/704

摘要： An injector for fuel injection systems of combustion engines, particularly direct injection diesel engines, comprises a piezo actuator (16), which is placed inside an injector body (10) and which, via first spring means (35), is held in contact with the injector (10) and with a sleeve-like intensifier plunger (33). In addition, a nozzle body (20) is provided, which is connected to the injector body (10), has at least one nozzle discharge opening (26, 27), and inside of which a graduated (first) nozzle needle (21) is guided in an axially displaceable manner, and (second) spring means (54) are provided, which are placed inside the intensifier plunger (33) and which, together with the injection pressure acting on the rear side on the (first) nozzle needle (21), hold the (first) nozzle needle (21) in the closed position. In addition, the injector comprises an (outer) control space (47), which is formed at the nozzle needle-side end of the intensifier plunger (33), and which is connected, via at least one leakage gap, to a fuel supply (18) that is under injection pressure. The (first) nozzle needle (21) is displaced in the opening direction (36) by the fuel located inside the control space (47).

摘要翻译： 用于内燃机的燃料喷射系统，尤其是直接喷射式柴油机的喷射器包括压电致动器（16），该压电致动器设置在喷射器本体（10）内并且经由第一弹簧装置（35）保持与 注射器（10）和套筒状增强器柱塞（33）。 此外，提供连接到喷射器本体（10）的喷嘴本体（20），其具有至少一个喷嘴排出口（26,27），并且在其内部具有刻度（第一）喷嘴针（21） （第二）弹簧装置（54），其设置在增强器柱塞（33）内部，并且与作用在（第一）喷嘴针的后侧上的喷射压力一起 （21），将（第一）喷嘴针（21）保持在关闭位置。 此外，喷射器包括形成在增压器柱塞（33）的喷嘴针侧端部处并且经由至少一个泄漏间隙连接到燃料供应器（外部）的（外部）控制空间 （18）处于注射压力下。 （第一）喷嘴针21通过位于控制空间47内的燃料沿打开方向36移动。

公开(公告)号：EP1651858A1

公开(公告)日：2006-05-03

申请号：EP04738654.5

申请日：2004-06-09

申请人： ROBERT BOSCH GMBH

发明人： BOEHLAND, Peter ,  NENTWIG, Godehard ,  BAUER, Michael

IPC分类号： F02M47/02 ,  F02M45/08

CPC分类号： F02M45/086 ,  F02M47/027 ,  F02M2200/46 ,  F02M2547/003 ,  G01N2800/52

摘要： The invention relates to a fuel injection device (20) for a combustion engine. It comprises a housing (30) and a first valve element (34), which has a first hydraulic control surface (73) acting in the closing direction, and comprises at least one second valve element (36), which has a second hydraulic control surface (75) also acting in the closing direction. A separate hydraulic control space (72, 74) is assigned to each valve element (34, 36), can be connected to a common high-pressure connection (24), and is delimited, at least in areas, by a respective hydraulic control surface (73, 75). A fluid connection (68b) is provided between the control spaces (72, 74). The invention provides that the fuel injection device comprises a valve device (77) with which the fluid connection (68b) can be interrupted.

摘要翻译： 本发明涉及一种用于内燃机的燃料喷射装置（20）。 它包括壳体（30）和第一阀元件（34），第一阀元件具有沿关闭方向作用的第一液压控制表面（73），并且包括至少一个第二阀元件（36），该第二阀元件具有第二液压控制装置 表面（75）也在关闭方向上起作用。 为每个阀元件（34,36）分配一个单独的液压控制空间（72,74），该控制空间可以连接到共同的高压接头（24），并且至少局部地通过相应的液压控制器 表面（73,75）。 在控制空间（72,74）之间设有流体连接（68b）。 本发明规定，燃料喷射装置包括阀装置（77），流体连接（68b）可以与该阀装置（77）中断。

公开(公告)号：EP1636485A1

公开(公告)日：2006-03-22

申请号：EP04726421.3

申请日：2004-04-08

申请人： ROBERT BOSCH GMBH

发明人： KANNE, Sebastian ,  NENTWIG, Godehard

IPC分类号： F02M51/06 ,  F02M47/06

CPC分类号： F02M51/0603 ,  F02M2200/704

摘要： Disclosed is an injector for fuel injection systems of internal combustion engines, especially direct injection diesel engines. Said injector comprises a piezo actuator (16) that is disposed in an injector body (10) and rests against the injector (10) and a sleeve-type transmission piston (32) via first spring means (34). The inventive injector further comprises a nozzle body (20) which is connected to the injector body (10) and is provided with at least one nozzle outlet (26, 27) and in which a staggered valve needle (21) is guided in an axially movable manner, and second spring means (48) that are arranged inside the transmission piston (32) and maintain the valve needle (21) in the closed position along with the injection pressure that affects the rear end of the valve needle (21). The injector also comprises a control space (42) that is embodied at the end of the transmission piston (32), which faces the valve needle, and is connected to a fuel supply (18) via a leak gap (43, 45, 47), said fuel supply (18) being subjected to injection pressure. The valve needle (21) is impinged upon in the opening direction (35) by the fuel located in the control space (42). An essential characteristic of the invention consists of the fact that the transmission piston (32) actuated by the piezo actuator (16) is spatially directly allocated to the valve needle (21) such that a rearward area (30) of the valve needle (21), which has a larger diameter than an area of the valve needle (21) located at the nozzle outlet end, fits into the interior (31) of the transmission piston (32).