公开(公告)号：EP1387944B1

公开(公告)日：2006-12-27

申请号：EP01998730.4

申请日：2001-11-16

申请人： ROBERT BOSCH GMBH

发明人： HAEBERER, Rainer ,  BUERKLE, Frieder ,  CLAUSS, Helmut ,  RUECKLE, Markus

IPC分类号： F02M59/46 ,  F02M63/02

CPC分类号： F02M63/005 ,  F02B3/06 ,  F02M59/46 ,  F02M63/0225

摘要： The invention relates to a fuel injection pump for internal combustion engines, comprising a pressure limiting valve. The fuel injection pump has a valve support (10), a high pressure connection (inlet bore 18), a return flow connection (outlet bore 22, 22a, 22b, 44, 45), a valve seat (20) which is turned towards said inlet bore, an axially displaceable valve piston (15, 43) and a valve spring (25) which acts on the valve piston in the direction of the valve seat. The invention is mainly characterised in that the pressure limiting valve is integrated directly in the fuel injection pump and is sealed in relation to the pump body on the high and low pressure sides (37 or 38, 39). These measures reduce the construction space required for a fuel injection pump of this type and eliminate the need for special return lines.

公开(公告)号：EP1283956B1

公开(公告)日：2006-01-11

申请号：EP01943031.3

申请日：2001-05-08

申请人： ROBERT BOSCH GMBH

发明人： BOEHM, Martin ,  HAEBERER, Rainer ,  CLAUSS, Helmut ,  LANDHÄUSSER, Felix ,  RUECKLE, Markus

IPC分类号： F02M59/46

CPC分类号： F02M63/0017 ,  F02M59/34 ,  F02M63/004 ,  F02M63/0225

摘要： The invention relates to a fuel-injection system for internal combustion engines, comprising a fuel-distribution pipe and a high-pressure pump that is driven in accordance with the engine speed. Said high-pressure pump generates the fuel pressure and throughput in the fuel-distribution pipe that is necessary in each operating state of the internal combustion engine. The fuel-injection system also comprises a fuel-metering unit assigned to the high-pressure pump. Said fuel-metering unit (10, 11) is based on an electromagnetically actuated control valve (11) and is positioned in the high-pressure pump. The outlet (36) of the control valve (11) opens into the low-pressure region of the high-pressure pump. The inlet (32, 34) of the control valve (11) is connected to the delivery side of a presupply pump. The control valve (11) has a valve plunger (23), which is spring-loaded (25) by pressure in the open position and which can be actuated by an armature pin (14) of the electromagnet (10) against the spring force in the closed position. The invention is characterized in that at least one, and preferably several radial control openings (35) are located in the valve plunger (23), said openings interacting with the induction side of the high-pressure pump.

摘要翻译： 用于内燃机的燃料喷射系统技术领域本发明涉及一种用于内燃机的燃料喷射系统，其包括燃料分配管和根据发动机转速被驱动的高压泵。 所述高压泵在内燃机的每个运行状态下在燃料分配管中产生所需的燃料压力和产量。 燃料喷射系统还包括分配给高压泵的燃料计量单元。 所述燃料计量单元（10,11）基于电磁致动的控制阀（11）并位于高压泵中。 控制阀（11）的出口（36）通向高压泵的低压区域。 控制阀（11）的入口（32,34）连接到预先供应的泵的输出侧。 控制阀（11）具有阀柱塞（23），该阀柱塞通过在打开位置中的压力弹簧加载（25）并且可以通过电磁体（10）的衔铁销（14）抵抗弹簧力 在关闭的位置。 本发明的特征在于，至少一个，优选多个径向控制开口（35）位于阀柱塞（23）中，所述开口与高压泵的感应侧相互作用。

公开(公告)号：EP1387944A2

公开(公告)日：2004-02-11

申请号：EP01998730.4

申请日：2001-11-16

申请人： ROBERT BOSCH GMBH

发明人： HAEBERER, Rainer ,  BUERKLE, Frieder ,  CLAUSS, Helmut ,  RUECKLE, Markus

IPC分类号： F02M59/46 ,  F02M63/02

CPC分类号： F02M63/005 ,  F02B3/06 ,  F02M59/46 ,  F02M63/0225

摘要： The invention relates to a fuel injection pump for internal combustion engines, comprising a pressure limiting valve. The fuel injection pump has a valve support (10), a high pressure connection (inlet bore 18), a return flow connection (outlet bore 22, 22a, 22b, 44, 45), a valve seat (20) which is turned towards said inlet bore, an axially displaceable valve piston (15, 43) and a valve spring (25) which acts on the valve piston in the direction of the valve seat. The invention is mainly characterised in that the pressure limiting valve is integrated directly in the fuel injection pump and is sealed in relation to the pump body on the high and low pressure sides (37 or 38, 39). These measures reduce the construction space required for a fuel injection pump of this type and eliminate the need for special return lines.

公开(公告)号：EP1047871B1

公开(公告)日：2004-01-28

申请号：EP99939946.2

申请日：1999-06-25

申请人： ROBERT BOSCH GMBH

发明人： KRIMMER, Erwin ,  HAEBERER, Rainer ,  CLAUSS, Helmut ,  MIEHLE, Tilman ,  LANDHÄUSSER, Felix ,  RUECKLE, Markus

IPC分类号： F02M59/34 ,  F02M59/46 ,  F02M63/02

CPC分类号： F02M63/0017 ,  F02M59/34 ,  F02M63/004 ,  F02M63/0045 ,  F02M63/0056 ,  F02M63/0225 ,  F02M2200/24

摘要： The inventive fuel injection system for internal combustion engines is provided with a distributing pipe and a high-pressure pump which is driven depending on the engine speed. Said high-pressure pump produces the fuel pressure and throughput which is necessary for the operating state of the engine. The fuel injection system is also provided with a fuel metering unit assigned to the high pressure pump. Said fuel metering unit is based on an electromagnetically actuated control valve (11). The fuel metering unit (10, 11) is arranged within the high-pressure pump. The outlet (32, 34, 35) of the control valve (11) leads to the low-pressure zone of the high-pressure pump. The above-mentioned features permit the establishment of a fuel metering unit (10, 11) which is capable of exactly metering to the high-pressure pump of theommon rail system the fuel amount desired for the respective operating state of the internal combustion engine.

摘要翻译： 本发明的用于内燃机的燃料喷射系统设置有分配管和根据发动机速度驱动的高压泵。 所述高压泵产生发动机运行状态所需的燃料压力和通过量。 燃料喷射系统还配备有配属于高压泵的燃料计量单元。 所述燃料计量单元基于电磁致动的控制阀（11）。 燃料计量单元（10,11）布置在高压泵内。 控制阀（11）的出口（32,34,35）通向高压泵的低压区。 上述特征允许建立燃料计量单元（10,11），该燃料计量单元能够准确地计量到该共轨系统的高压泵内燃机的相应运行状态所需的燃料量。

公开(公告)号：EP1283956A1

公开(公告)日：2003-02-19

申请号：EP01943031.3

申请日：2001-05-08

申请人： ROBERT BOSCH GMBH

发明人： BOEHM, Martin ,  HAEBERER, Rainer ,  CLAUSS, Helmut ,  LANDHÄUSSER, Felix ,  RUECKLE, Markus

IPC分类号： F02M59/46

CPC分类号： F02M63/0017 ,  F02M59/34 ,  F02M63/004 ,  F02M63/0225

摘要： The invention relates to a fuel-injection system for internal combustion engines, comprising a fuel-distribution pipe and a high-pressure pump that is driven in accordance with the engine speed. Said high-pressure pump generates the fuel pressure and throughput in the fuel-distribution pipe that is necessary in each operating state of the internal combustion engine. The fuel-injection system also comprises a fuel-metering unit assigned to the high-pressure pump. Said fuel-metering unit (10, 11) is based on an electromagnetically actuated control valve (11) and is positioned in the high-pressure pump. The outlet (36) of the control valve (11) opens into the low-pressure region of the high-pressure pump. The inlet (32, 34) of the control valve (11) is connected to the delivery side of a presupply pump. The control valve (11) has a valve plunger (23), which is spring-loaded (25) by pressure in the open position and which can be actuated by an armature pin (14) of the electromagnet (10) against the spring force in the closed position. The invention is characterized in that at least one, and preferably several radial control openings (35) are located in the valve plunger (23), said openings interacting with the induction side of the high-pressure pump.

公开(公告)号：EP1198672A1

公开(公告)日：2002-04-24

申请号：EP01953120.1

申请日：2001-06-27

申请人： ROBERT BOSCH GMBH

发明人： HAEBERER, Rainer ,  OHNMACHT, Markus ,  CHRIST, Wilhelm ,  MAIER, Ralf ,  HAUG, Stefan ,  FLEINER, Wolfgang ,  RUECKLE, Markus

IPC分类号： F02M61/18

CPC分类号： F02M61/1873 ,  F02M61/047 ,  F02M2200/30

摘要： The invention relates to a fuel injection valve comprising a valve body (1) and a bore (3) configured as a blind bore, whose bottom area faces the combustion chamber. A conical valve seat (9) is formed on said bottom area and accommodates at least one injection opening (11). A piston-shaped valve member (5) is disposed in the bore (3). Said valve member can be displaced in the longitudinal direction against a closing force and is provided with a valve tip (7) which rests against the valve seat (9) when the valve member (5) is in the closed position. A first cone surface (30) and a second cone surface (32) are configured on the valve member tip (7), said second surface being disposed so as to face the combustion chamber relative to the first cone surface. The cone angle (α) of the first cone surface (30) is smaller than the cone angle (η) of the valve seat (9), which in turn is smaller than the cone angle (β) of the second cone surface (32). An annular groove (35) is formed between the first (30) and the second cone surface (32), and an additional continuous annular groove (42) that at least partially overlaps the injection openings (11) in the closed position of the valve member (5) is formed on the second cone surface (32), thereby evenly providing all injection openings (11) with fuel even if the valve member (5) is misaligned.

摘要翻译： 燃料喷射阀技术领域本发明涉及一种燃料喷射阀，其包括阀体（1）和构造为盲孔的孔（3），其底部区域面向燃烧室。 锥形阀座（9）形成在所述底部区域上并容纳至少一个注入开口（11）。 活塞形阀构件（5）设置在孔（3）中。 所述阀构件可以克服闭合力沿纵向移动并且设置有当阀构件（5）处于关闭位置时抵靠阀座（9）的阀尖（7）。 第一锥形表面（30）和第二锥形表面（32）构造在阀构件尖端（7）上，所述第二表面布置成相对于第一锥形表面面向燃烧室。 第一圆锥表面（30）的圆锥角（α）小于阀座（9）的圆锥角（η），其又小于第二圆锥表面（32）的圆锥角（β） ）。 在第一圆锥表面（30）与第二圆锥表面（32）之间形成环形槽（35），并且在阀的关闭位置至少部分地与注射开口（11）重叠的另外的连续环形槽（42） 构件5形成在第二锥形表面32上，从而即使阀构件5未对准，也可均匀地向所有喷射开口11提供燃料。

公开(公告)号：EP3143275B1

公开(公告)日：2019-01-02

申请号：EP15721223.4

申请日：2015-05-07

申请人： Robert Bosch GmbH

发明人： HAEBERER, Rainer ,  STOEBERL, Thorsten

IPC分类号： F02M57/02

公开(公告)号：EP2580437B1

公开(公告)日：2018-10-24

申请号：EP11721762.0

申请日：2011-05-19

申请人： Robert Bosch GmbH

发明人： HAEBERER, Rainer

IPC分类号： F01N3/20

CPC分类号： F01N3/2066 ,  F01N2610/02 ,  F01N2610/14 ,  Y02T10/24

公开(公告)号：EP2504538B1

公开(公告)日：2018-03-28

申请号：EP10766002.9

申请日：2010-10-04

申请人： Robert Bosch GmbH

发明人： HERWIG, Roland ,  HAEBERER, Rainer ,  SEMET, Jan

IPC分类号： F01N3/20

CPC分类号： F01N3/2066 ,  B60K2015/03427 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/1406 ,  Y02A50/2325 ,  Y02T10/24

公开(公告)号：EP3011154B1

公开(公告)日：2017-06-14

申请号：EP14722583.3

申请日：2014-04-22

申请人： Robert Bosch GmbH

发明人： HAEBERER, Rainer

IPC分类号： F01N3/20 ,  F02M53/04 ,  F01N3/28

CPC分类号： F01N3/28 ,  F01N3/206 ,  F01N3/2066 ,  F01N2260/024 ,  F01N2610/02 ,  F01N2610/11 ,  F01N2610/1453 ,  F02M53/043 ,  Y02T10/24