公开(公告)号：EP1483498B1

公开(公告)日：2005-07-20

申请号：EP02792633.6

申请日：2002-12-05

申请人： Robert Bosch GmbH

发明人： BOEHLAND, Peter

IPC分类号： F02M47/02 ,  F02M57/02

CPC分类号： F02M57/023 ,  F02M45/04 ,  F02M45/12 ,  F02M47/027 ,  F02M59/366

摘要： The invention relates to a fuel injection device which comprises for every cylinder of the internal combustion engine one high-pressure fuel pump (10) and one fuel injection valve (12) linked therewith. A pump plunger (18) of the high-pressure fuel pump (10) delimits a pump working chamber (22) that is linked with a pressure compartment (40) of the fuel injection valve (12) which comprises an injection valve member (28). Said injection valve member controls injection openings (32) and can be displaced against a closing force in an opening direction (29) by the pressure prevailing in the pressure compartment (40). A first control valve (68) controls a connection (66) of the pump working chamber (22) with a relief chamber (24) and a second control valve (70) controls a connection (64) of a control pressure compartment (52) linked with pump working chamber (22) with a relief chamber (24). In a control piston (50) impinging the injection valve member (28), in the lift position of the control piston (50), when the injection valve member (28) is in the closed position, a larger front face of the control piston (50) is impinged upon by the pressure prevailing in the control pressure compartment (52) than in a lift position of the control piston (50), when the injection valve member (28) is opened with a maximum lift.

公开(公告)号：EP1525390A1

公开(公告)日：2005-04-27

申请号：EP03709648.4

申请日：2003-02-25

申请人： ROBERT BOSCH GMBH

发明人： BOEHLAND, Peter

IPC分类号： F02M59/08 ,  F02M61/10 ,  F02M57/02 ,  F02M61/20

CPC分类号： F02M45/04 ,  F02M45/06 ,  F02M45/086 ,  F02M45/12 ,  F02M57/023 ,  F02M59/08 ,  F02M61/18 ,  F02M61/1806 ,  F02M61/205 ,  F02M2200/46

摘要： Disclosed is a fuel injection device comprising a high-pressure fuel pump (10) and a fuel injection valve (12) that is connected thereto and is provided for each cylinder of the internal combustion engine. Said high-pressure fuel pump (10) comprises two pump pistons (18, 118) that are driven by the internal combustion engine in a lifting movement and define a pump working chamber (22) to which fuel is fed from a fuel reservoir (24). A second pump piston is guided in an at least approximately coaxially displaceable manner within a first pump piston (18). Both pump pistons (18, 118) can optionally be coupled to each other such that said pistons (18, 118) move as a unit during a delivery stroke, or the second pump piston (118) can be fixed in a passive position such that only the first pump piston (18) performs a delivery stroke. The fuel injection valve (12) is provided with two injection valve members (28, 128), a second injection valve member (128) which is at least indirectly impinged upon by the pressure prevailing in a control pressure chamber (52) being guided in a displaceable manner within the first injection valve member (28). The control pressure chamber (52) is provided with a connection (53) to the pump working chamber (22), which is controlled by the second pump piston (118), the control pressure chamber (52) being separated from the pump working chamber (22) if the second pump piston (118) is placed in the passive position.

公开(公告)号：EP1483498A1

公开(公告)日：2004-12-08

申请号：EP02792633.6

申请日：2002-12-05

申请人： Robert Bosch GmbH

发明人： BOEHLAND, Peter

IPC分类号： F02M47/02 ,  F02M57/02

CPC分类号： F02M57/023 ,  F02M45/04 ,  F02M45/12 ,  F02M47/027 ,  F02M59/366

摘要： The invention relates to a fuel injection device which comprises for every cylinder of the internal combustion engine one high-pressure fuel pump (10) and one fuel injection valve (12) linked therewith. A pump plunger (18) of the high-pressure fuel pump (10) delimits a pump working chamber (22) that is linked with a pressure compartment (40) of the fuel injection valve (12) which comprises an injection valve member (28). Said injection valve member controls injection openings (32) and can be displaced against a closing force in an opening direction (29) by the pressure prevailing in the pressure compartment (40). A first control valve (68) controls a connection (66) of the pump working chamber (22) with a relief chamber (24) and a second control valve (70) controls a connection (64) of a control pressure compartment (52) linked with pump working chamber (22) with a relief chamber (24). In a control piston (50) impinging the injection valve member (28), in the lift position of the control piston (50), when the injection valve member (28) is in the closed position, a larger front face of the control piston (50) is impinged upon by the pressure prevailing in the control pressure compartment (52) than in a lift position of the control piston (50), when the injection valve member (28) is opened with a maximum lift.

摘要翻译： 本发明涉及一种燃料喷射装置，其包括用于内燃机的每个气缸的一个高压燃料泵（10）和与其相连的一个燃料喷射阀（12）。 高压燃料泵（10）的泵柱塞（18）限定与燃料喷射阀（12）的压力室（40）连接的泵工作室（22），所述燃料喷射阀包括喷射阀构件 ）。 所述喷射阀构件控制喷射开口（32）并且可以通过压力室（40）中的压力克服打开方向（29）上的闭合力移位。 第一控制阀（68）控制泵工作室（22）与减压室（24）的连接（66），第二控制阀（70）控制控制压力室（52）的连接（64） 与泵工作室（22）与减压室（24）连接。 在与喷射阀构件（28）碰撞的控制活塞（50）中，在控制活塞（50）的提升位置中，当喷射阀构件（28）处于关闭位置时，控制活塞 当所述喷射阀构件（28）以最大升程打开时，所述控制活塞（50）受到所述控制压力室（52）中存在的压力的影响比所述控制活塞（50）的升程位置中的压力更大。

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

IPC分类号： F04B17/04 ,  F04B53/12 ,  F01N3/20

公开(公告)号：EP2748439B1

公开(公告)日：2017-10-04

申请号：EP12733139.5

申请日：2012-07-09

申请人： Robert Bosch GmbH

发明人： LANDES, Ewgenij ,  BOEHLAND, Peter

IPC分类号： F01N3/24 ,  B01D53/94 ,  F01N3/20 ,  F01N3/10 ,  F04B23/10

CPC分类号： F01N3/10 ,  F01N3/2066 ,  F01N3/208 ,  F01N3/24 ,  F01N2610/02 ,  F01N2610/1433 ,  F01N2610/1466 ,  F01N2610/1473 ,  F01N2610/1493 ,  F04B23/10

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

发明人： STOECKLEIN, Wolfgang ,  BOEHLAND, Peter ,  NENTWIG, Godehard

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).

公开(公告)号：EP1709314A2

公开(公告)日：2006-10-11

申请号：EP04802789.0

申请日：2004-11-22

申请人： ROBERT BOSCH GMBH

发明人： BOEHLAND, Peter

IPC分类号： F02M1/00

CPC分类号： F02M45/086 ,  F02M61/18 ,  F02M2200/46

摘要： The invention relates to a valve (1) which is used to control liquids. Said valve comprises a valve body (2) and a valve needle (3) which is disposed in such a manner that it can be displaced in a longitudinal manner in the valve body (2). The valve needle (3) co-operates with a sealing seat (4) of the valve body (2) in such a manner that when the sealing seat (4) is closed, a fuel supply area (5) is separated from a fuel chamber (6), whereby both the area and the chamber are defined by the valve body (2) and the valve needle (3). The valve needle (3) is embodied in an area (8) which is connected to the fuel chamber (6), said area comprising a pressure compensation surface (9) which, when the sealing seat (4) is open, is impinged upon by fuel guided into the fuel chamber (6) at high pressure in such a manner that force acting in the region of the pressure compensation surface (9) engages in a closing direction of the sealing seat (4). Also, a pressure compensation piston (10) is provided in the region of the pressure compensation surface (9). Force acting upon the pressure compensation surface (9) in a closing direction of the sealing seat (4), supports the surface (11) of said piston, which is orientated towards the fuel chamber.

公开(公告)号：EP1514021A1

公开(公告)日：2005-03-16

申请号：EP03720225.6

申请日：2003-03-21

申请人： ROBERT BOSCH GMBH

发明人： BOEHLAND, Peter

IPC分类号： F02M63/00 ,  F02M59/46

CPC分类号： F02M63/0007

摘要： The invention relates to an injection device for an internal combustion engine comprising an injection nozzle (20), an injection pump (12), which is connected to said injection nozzle (20) via a high-pressure path (14, 18) and which has a high-pressure part. The injection device also comprises a high-pressure accumulator (16), which is located in the high-pressure path (14, 18) between the injection pump (12) and the injection nozzle (20). A modulating device (22) for forming the rate-of-discharge curve is provided in high-pressure path (18). The invention also relates to a method for injecting a fluid into a combustion chamber that involves the use of an inventive injection device.

公开(公告)号：EP1476655A1

公开(公告)日：2004-11-17

申请号：EP02792635.1

申请日：2002-12-06

申请人： ROBERT BOSCH GMBH

发明人： BOEHLAND, Peter

IPC分类号： F02M57/02 ,  F02M59/10 ,  F02M47/02 ,  F02M59/44

CPC分类号： F02M47/027 ,  F02M45/04 ,  F02M45/08 ,  F02M57/02

摘要： The invention relates to a fuel injection system comprising a high pressure fuel pump (10) and a fuel injection valve (12) connected to said pump, for each cylinder of the internal combustion engine. A pump piston (18) of the high pressure fuel pump (10) defines a pump working area (22) which is connected to a pressure chamber (40) of the fuel injection valve (12). Said fuel injection valve comprises an injection valve element (28) which is used to control injection openings (32) and can be displaced against a closing force in an opening direction by means of the pressure in the pressure chamber (40). A connection (66) between the pump working area (22) and a discharge chamber (24) is controlled by a first control valve (68), and a connection (64) between a control pressure chamber (52) associated with the pump working area (22) and a discharge chamber (24) is controlled by a second control valve (70). A throttle point (63, 65) is respectively provided in connections (62, 64) between the control pressure chamber (52) and the pump working area (22) and between the control pressure chamber and the discharge chamber (24). Another pressure chamber (54) is connected to the pump working area (22) and is defined by a pressure surface (53) by which means another force is exerted on the injection valve element (28) in the closing direction.

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

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

IPC分类号： F02M47/02 ,  F02M45/08

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).