公开(公告)号：EP1047871A1

公开(公告)日：2000-11-02

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.

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：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.