公开(公告)号：EP1240424A1

公开(公告)日：2002-09-18

申请号：EP01998729.6

申请日：2001-11-16

申请人： ROBERT BOSCH GMBH

发明人： DUTT, Andreas

IPC分类号： F02M59/46 ,  F02M59/36 ,  F02M53/00 ,  F02M41/14

CPC分类号： F02M63/0045 ,  F02M59/205 ,  F02M59/366 ,  F02M59/466 ,  F02M63/0007 ,  F02M63/0017

摘要： The invention relates to a stroke-controlled valve which is used as a fuel metering device of an injection system for internal combustion engines. Said valve has a valve needle (11) which can be actuated axially against the resistance of a spring (24), which is arranged in a graduated, coaxial recess (13) in a valve body (10) and which interacts with a valve seat (17) which is configured in the recess (13) of the valve body (10), hereby controlling the fuel injection process. The valve also comprises a high-pressure area (18) which is connected to an allocated injection nozzle and which is located in front of the valve seat (17), a low-pressure area (28) which is located behind the valve seat and which opens out into the fuel return passage (30); and a low-pressure compensating piston (22) which coaxially adjoins the valve (16, 17) and which is solidly connected to the valve needle. The invention is characterised in that a first control edge (39 or 42) is configured on the low-pressure compensating piston (22). Said control edge interacts with a second control edge (40 or 43) on the valve body recess (13) in the area of the fuel return passage (45, 30) or (48, 30) in such a way that a throttle cross-section (38, 38a or 46, 44a) that is dependent on the valve stroke (41) is formed between the two control edges (39, 40 or 42, 43).

公开(公告)号：EP0708885B1

公开(公告)日：2001-09-26

申请号：EP95900649.5

申请日：1994-11-22

申请人： ROBERT BOSCH GMBH

发明人： DUTT, Andreas ,  VELDTEN, Burkhard ,  RODRIGUEZ-AMAYA, Nestor ,  FUCHS, Walter

IPC分类号： F02M41/14 ,  F02M59/36

CPC分类号： F02M41/1411 ,  F02M59/366

摘要： In a distributor-type fuel injection pump there is a magnetic valve in the distributor, the valve component of which is fitted in an axial drilling in the distributor and is actuated by a magnet integral with the housing in order to interrupt the connection of a pump working chamber (14) of the distributor-type injection pump to a relief chamber during a given high-pressure injection phase. Owing to its design, a distributor (7) of such a fuel injection pump has a certain axial clearance in its bearing which affects the control travel of the valve member (39) in the distributor in relation to the fixed electromagnet (66). To prevent changes in the magnetic properties which could occur owing to this axial arrangement, a part of the magnetic circuit in the form of a magnet plate (55) can be moved together with the distributor so that the relative position between an armature (52) fixed to the valve member (39) and this part of the magnet core with which it forms a working air gap (80) does not change depending on the axial position of the distributor and thus the magnetic properties of the electromagnetic valve are maintained regardless of the axial position of the distributor.

公开(公告)号：EP2699788B1

公开(公告)日：2018-02-21

申请号：EP12711848.7

申请日：2012-03-26

申请人： Robert Bosch GmbH

发明人： DUTT, Andreas ,  GREINER, Matthias

IPC分类号： F02M59/10 ,  F04B1/04 ,  F02M59/44 ,  F16C17/04

CPC分类号： F02M59/102 ,  F02M59/44 ,  F04B1/0404 ,  F04B1/0413 ,  F16C17/047 ,  F16C2360/42

公开(公告)号：EP2954192B1

公开(公告)日：2017-10-25

申请号：EP13815445.5

申请日：2013-12-16

申请人： Robert Bosch GmbH

发明人： KRISTEN, Marcus ,  DUTT, Andreas ,  LAMM, Marco

IPC分类号： F02M63/00 ,  F02M37/00 ,  F02M59/46

CPC分类号： F02M63/0001 ,  F02M37/0029 ,  F02M37/0052 ,  F02M59/46

公开(公告)号：EP2673495B1

公开(公告)日：2016-09-14

申请号：EP11805885.8

申请日：2011-12-30

申请人： Robert Bosch GmbH

发明人： DUTT, Andreas

IPC分类号： F02M59/10 ,  F02M63/00 ,  F04B1/04

CPC分类号： F02M59/102 ,  F02M63/0001 ,  F04B1/0417 ,  F04B53/18

公开(公告)号：EP3047136A1

公开(公告)日：2016-07-27

申请号：EP14761880.5

申请日：2014-09-11

申请人： Robert Bosch GmbH

发明人： KOEHLER, Achim ,  DUTT, Andreas

IPC分类号： F02M63/00

CPC分类号： F02M55/04 ,  F02M59/102 ,  F02M59/44 ,  F02M63/0001 ,  F02M69/54 ,  F02M2200/03 ,  F02M2200/09 ,  F02M2200/28 ,  F02M2200/31 ,  F02M2200/315 ,  F04B11/0008

摘要： The invention relates to a fluid conveyance system for a fluid, comprising a low-pressure conveyance system having a low-pressure pump (2) and a high-pressure conveyance system having a high-pressure pump (8), which are connected by means of a connecting line, wherein the fluid conveyance system has a pressure damper (19). According to the invention, a fluid conveyance system is provided, by means of which a pulsation of the fluid caused by flow-rate waves or pressure waves in the fluid is damped. This is achieved in that the pressure damper (19) is arranged in the lower-pressure conveyance system and is a hydraulic pressure damper (19). Said hydraulic damper (19) has a piston (21) arranged in a cylinder (20), which piston can be moved against the force of a compression spring (23) and the vapor pressure present in a compression-spring chamber (22) accommodating the compression spring.

公开(公告)号：EP3014107A1

公开(公告)日：2016-05-04

申请号：EP14720621.3

申请日：2014-04-30

申请人： Robert Bosch GmbH

发明人： DUTT, Andreas

IPC分类号： F02M63/00 ,  F02M59/06 ,  F02M59/10 ,  F04B1/04 ,  F04B53/00 ,  F04B53/18 ,  F02M63/02

CPC分类号： F02M63/0001 ,  F02M59/06 ,  F02M59/102 ,  F02M63/0265 ,  F02M2200/02 ,  F04B1/0404 ,  F04B1/053 ,  F04B53/18

摘要： The pumping device, in particular high pressure fuel pumping device, has at least one pump element (10) which has a pump piston (12) which is driven in a reciprocating movement by a drive shaft (14) via a tappet (18), wherein the drive shaft (14) has at least one cam (16) or eccentric, on which the tappet (18) is supported at least indirectly. The drive shaft (14) is mounted rotatably via at least one bearing point (60), wherein the at least one bearing point (60) is fed lubricating medium which exits from the at least one bearing point (60) towards the at least one cam (16) or eccentric. Between the at least one bearing point (60) and the at least one cam (16) or eccentric, the drive shaft (14) has an outer contour (66) which increases in diameter from the at least one bearing point (60) towards the at least one cam (16) or eccentric and ends in the region of the tappet (18) as viewed in the direction of the rotational axis (15) of the drive shaft (14). Lubricating medium is guided in a targeted manner to the tappet (18) by way of the outer contour (66).

摘要翻译： 泵送装置，特别是高压燃料泵送装置具有至少一个泵元件（10），该泵元件具有泵活塞（12），泵活塞通过挺杆（18）由驱动轴（14）往复运动地驱动， 其中所述驱动轴（14）具有至少一个凸轮（16）或偏心轮，挺杆（18）至少间接地支撑在所述凸轮上。 驱动轴（14）经由至少一个支承点（60）可旋转地安装，其中至少一个支承点（60）被供给从至少一个支承点（60）离开的至少一个轴承点 凸轮（16）或偏心。 在所述至少一个支承点（60）和所述至少一个凸轮（16）或所述至少一个凸轮（16）之间，所述驱动轴（14）具有外直径从所述至少一个支承点（60）朝向 所述至少一个凸轮（16）或偏心的并且在所述驱动轴（14）的旋转轴线（15）的方向上观察时在所述挺杆（18）的区域中终止。 润滑介质通过外轮廓（66）以目标方式被引导到挺杆（18）。

公开(公告)号：EP2663772A1

公开(公告)日：2013-11-20

申请号：EP11805064.0

申请日：2011-12-30

申请人： Robert Bosch GmbH

发明人： DUTT, Andreas

IPC分类号： F04B9/04 ,  F04B1/04 ,  F02M37/04 ,  F02M59/44 ,  F04B53/18 ,  F04B1/047

CPC分类号： F04B9/042 ,  F02M59/06 ,  F02M59/102 ,  F02M59/44 ,  F04B1/0413 ,  F04B1/047 ,  F04B53/18

摘要： The invention relates to a high-pressure pump, having a fluid-filled pump inner chamber (2) in a pump housing (1), in which a pump camshaft (3) having at least one cam (5a, 5b) is rotatably mounted, and at least one pump cylinder, in which a pump tappet can be moved in a translational manner to convey fluid by means of a roller (6) of a roller tappet (7) rolling on the cam track of the pump camshaft (3), and wherein changing volumes (V1, V3, V4) in the pump inner chamber (2), which are formed by the rotating cams (5a, 5b) and the roller tappet (7), are connected via a flow cross section for fluid exchange. According to the invention, the equalisation flow of the increasing and reducing volumes (V1, V3, V4) formed in the pump inner chamber (1) between the rotating cams (5a, 5b) and the roller tappet (7) is optimised. This is achieved in that the flow cross section is arranged in the region of the roller tappet (7) extending into the pump housing (1) and adjacent to the pump inner chamber (2).

摘要翻译： 本发明涉及一种高压泵，其在泵壳体（1）中具有充满流体的泵内腔（2），其中具有至少一个凸轮（5a，5b）的泵凸轮轴（3）可旋转地安装 ，以及至少一个泵缸，其中泵挺杆可平移地移动，以通过在泵凸轮轴（3）的凸轮轨道上滚动的滚子挺杆（7）的滚子（6）输送流体， ，并且其中由所述旋转凸轮（5a，5b）和所述滚子挺杆（7）形成的所述泵内腔室（2）中的体积（V1，V3，V4）的改变经由用于流体的流动横截面 交换。 根据本发明，优化了在旋转凸轮（5a，5b）和滚子挺杆（7）之间的泵内腔（1）中形成的增加和减小容积（V1，V3，V4）的均衡流。 这是通过将流动横截面布置在延伸到泵壳体（1）中并靠近泵内室（2）的滚子挺杆（7）的区域中来实现的。

公开(公告)号：EP2422072A1

公开(公告)日：2012-02-29

申请号：EP10706987.4

申请日：2010-02-25

申请人： Robert Bosch GmbH

发明人： DUTT, Andreas

IPC分类号： F02M63/02 ,  F02M59/02 ,  F02M59/44 ,  F04B1/04 ,  F04B53/00

CPC分类号： F02M63/0265 ,  F02M59/02 ,  F02M59/445 ,  F04B1/0408 ,  F05C2251/02

摘要： A high-pressure pump (1), in particular serving as a radial piston pump or in-line piston pump for fuel injection systems of air-compressing auto-ignition internal combustion engines, has a pump assembly (13) and a driving shaft (6). The pump assembly (13) comprises a pump piston (16) guided in a cylinder bore (15) along an axis (17) of the cylinder bore (15), which can be driven by the driving shaft (6). Furthermore, a front surface (19) of the pump piston (16) in the cylinder bore (15) defines a pump working chamber (20). The pump piston (16) is made of a material which has an anisotropic elastic modulus. Thus having a high-pressure in the pump working chamber (20) causing the expansion of the cylinder bore (15), a radial deformation of the pump piston (16) can be reached, compensating the expansion of the cylinder bore (15).

摘要翻译： 高压泵（1）尤其是用作用于空气压缩自点火式内燃机的燃料喷射系统的径向活塞泵或直列式活塞泵具有泵组件（13）和驱动轴（ 6）。 泵组件（13）包括沿着缸孔（15）的轴线（17）在缸孔（15）中引导的泵活塞（16），其可以由驱动轴（6）驱动。 此外，在缸孔（15）中的泵活塞（16）的前表面（19）限定了泵工作室（20）。 泵活塞（16）由具有各向异性弹性模量的材料制成。 因此，在泵工作室（20）中的高压导致气缸孔（15）的膨胀时，可以达到泵活塞（16）的径向变形，从而补偿气缸孔（15）的膨胀。

公开(公告)号：EP2288804A1

公开(公告)日：2011-03-02

申请号：EP09749669.9

申请日：2009-03-20

申请人： Robert Bosch GmbH

发明人： VALLON, Werner ,  MEIER, Gerhard ,  DUTT, Andreas ,  MAURER, Frank ,  ALEKER, Jochen

IPC分类号： F02M59/10 ,  F02M59/44 ,  F04B1/053

CPC分类号： F02M59/10 ,  F02M59/44 ,  F04B1/0408 ,  F04B1/0426 ,  F04B1/0439

摘要： The invention relates to a high-pressure fuel pump for a fuel injection system of an internal combustion engine, with a pump housing (2) and with at least one pump element (3) which comprises a piston (8) which is driven by a cam (18) which interacts with a roller (15), the free ends of which are bounded by two side run-on surfaces which come into contact with mating surfaces during the operation of the high-pressure fuel pump (1). In order to provide a high-pressure fuel pump which can be produced cost-effectively and has a long service life, the side run-on surfaces are designed as circular ring disc surfaces and, in a central internal region, are released from contact with the mating surfaces.