公开(公告)号：EP2092170A1

公开(公告)日：2009-08-26

申请号：EP07822381.5

申请日：2007-11-08

申请人： Robert Bosch GmbH

发明人： HAEBERER, Rainer ,  HORN, Matthias

IPC分类号： F01N3/20 ,  F01N11/00 ,  B01D53/90

CPC分类号： F01N9/002 ,  F01N3/0871 ,  F01N3/208 ,  F01N13/009 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/11 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

摘要： The invention relates to a method for operating a metering valve (18) arranged in an exhaust gas region (13) of an internal combustion engine (10) for metering a reagent or a precursor of a reagent, comprising a cooling device to prevent excess temperatures. The invention further relates to a device for carrying out the method. During metering breaks of the regular metering process, a targeted predetermined minimum amount is metered for the cooling of the metering valve (18), if required.

摘要翻译： 本发明涉及一种用于操作布置在内燃机（10）的排气区域（13）中的计量阀（18）的方法，用于计量试剂或试剂的前体，包括冷却装置以防止过高的温度 。 本发明还涉及用于执行该方法的设备。 在常规计量过程的计量中断期间，如果需要，计量阀18的冷却计量目标预​​定最小量。

公开(公告)号：EP1966470A1

公开(公告)日：2008-09-10

申请号：EP06807627.2

申请日：2006-10-27

申请人： ROBERT BOSCH GMBH

发明人： HAEBERER, Rainer ,  BUERGLIN, Markus ,  HAGER, Bernhard ,  COCLICI, Cristian-Aurelian ,  SCHNEID Eckhard

IPC分类号： F01N3/20

CPC分类号： F01N3/2066 ,  F01N13/08 ,  F01N2260/022 ,  F01N2260/20 ,  F01N2610/02 ,  F01N2610/11 ,  F01N2610/1453 ,  Y02T10/24

摘要： The invention is based on an exhaust gas aftertreatment device for the aftertreatment of exhaust gases in an exhaust gas system of an internal combustion engine in which a catalyst for the reduction of NOx constituents of the exhaust gas of the internal combustion engine is arranged, and having a device for introducing a reducing agent via an exhaust gas pipe (11) into the catalyst, wherein the device comprises a metering valve (10). It is proposed that the exhaust gas pipe (11) be designed for avoiding direct input of heat into the metering valve (10) and/or for permitting increased heat dissipation from the metering valve (10).

公开(公告)号：EP1259729B1

公开(公告)日：2006-01-18

申请号：EP01994586.4

申请日：2001-11-16

申请人： ROBERT BOSCH GMBH

发明人： HAEBERER, Rainer ,  KOCH-GROBER, Hermann ,  RAPP, Holger ,  UHR, Christoffer ,  RETTICH, Andreas ,  FLEINER, Wolfgang ,  RUECKLE, Markus

IPC分类号： F02M47/02 ,  F02M59/46

CPC分类号： F02M47/027 ,  F02M63/0036 ,  F02M2200/304 ,  F02M2200/306 ,  F02M2547/003

摘要： The invention relates to an electromagnetic valve for controlling an injection valve of an internal combustion engine, comprising an electromagnet (29), a moving armature with an armature plate (28) and an armature pin (27); and a control valve member (25) which is moved with the armature and which interacts with a valve seat (24), for opening and closing a fuel drainage channel (17) of a control pressure chamber (14) of the injection valve (1). The armature plate (28) is mounted in such a way that under the influence of its inert mass, the armature plate can slide on the armature pin in the closing direction of the control valve member (25), in the opposite direction to the clamping force of a return spring (35) which acts on the armature plate. The inventive electromagnetic valve also comprises a hydraulic damping device with which the post-oscillation of the armature plate (28) after its dynamic displacement on the armature pin (27) can be damped. In order to simplify the assembly and reduce a disadvantageous post-oscillation process of the armature plate, the invention provides that the return spring (35) is supported on a support part (50) which is situated on the armature pin (27) and which is moved with said armature pin, by the end (62) of the return spring facing away from the armature plate (28). Said support part (50) also forms part (57) of the damping device.

摘要翻译： 本发明涉及一种用于控制内燃机的喷射阀的电磁阀，其包括电磁体（29），具有电枢板（28）和电枢销（27）的活动电枢; 和一个与电枢一起运动并与阀座（24）相互作用的控制阀元件（25），用于打开和关闭喷射阀（1）的控制压力室（14）的燃料排放通道（17） ）。 衔铁板（28）以这样的方式安装，即，在其惰性质量的作用下，衔铁板可以沿着控制阀构件（25）的关闭方向在衔铁销上沿与夹紧方向相反的方向 作用在衔铁板上的复位弹簧（35）的力。 本发明的电磁阀还包括液压阻尼装置，利用该液压阻尼装置可以衰减衔铁板（28）在衔铁销（27）上的动态位移后的后摆动。 为了简化组装并减少衔铁板的不利的后摆动过程，本发明规定复位弹簧（35）支撑在位于衔铁销（27）上的支撑部件（50）上，并且该支撑部件 通过复位弹簧的远离衔铁板（28）的端部（62）与所述衔铁销一起移动。 所述支撑部件（50）还形成阻尼装置的部分（57）。

公开(公告)号：EP0996823A1

公开(公告)日：2000-05-03

申请号：EP99903585.0

申请日：1999-01-26

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 ,  G05D16/10

CPC分类号： G05D16/103 ,  F02M63/005 ,  F02M63/0225

摘要： A pressure limitation valve for a fuel injection device for internal combustion engines, comprising a housing (10) with a high pressure connection (11) and a return connection (12), in addition to a pot-shaped axially displaceable piston (30) that can act against the force of a spring (40) that is exerted in the direction of a valve seat, whereby said piston is located in a bore hole in the housing between the valve seat (16) that is directed towards the high pressure connection and a stop (20) that is directed towards the return valve, and includes at least one through opening (33) that connects the inner side of the pot-shaped piston to the bore hole of the housing. The invention is characterised in that at least one throttle element (50) is arranged in the direction in which the fuel flows in front of and/or behind the valve seat.