公开(公告)号：EP2126302A1

公开(公告)日：2009-12-02

申请号：EP07822660.2

申请日：2007-11-16

申请人： Robert Bosch GmbH

发明人： HAEBERER, Rainer ,  HORN, Matthias ,  SCHMELING, Ulf-Peter

IPC分类号： F01N3/20

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

摘要： An SCR-injection unit (18) comprises an injector (30), a sleeve element (20) for fixing the injector (30) to a flange (16) of an exhaust gas pipe (12), and a cooling body (64). According to the invention, the sleeve element (20) has an elongated thin-walled connecting section (34), one axial end of which is non-positively connected to the flange (16) of the exhaust gas pipe (12) and the other axial end of which is non-positively connected to a supporting structure (36) for the injector (30).

公开(公告)号：EP2126300A1

公开(公告)日：2009-12-02

申请号：EP07822613.1

申请日：2007-11-15

申请人： Robert Bosch GmbH

发明人： HAEBERER, Rainer ,  KIENZLE, Burghard ,  GRIESINGER, Siegbert ,  HORN, Matthias

IPC分类号： F01N3/20 ,  F02M61/14

CPC分类号： F01N3/2066 ,  F01N3/36 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/11 ,  F01N2610/1453 ,  Y02T10/24 ,  Y10T137/8376

摘要： The invention relates to a retainer device (10) for retaining a reducing agent dosing valve (20), wherein the retainer device at least partially surrounds an interior space which is provided for holding the reducing agent dosing valve. According to the invention, the retainer device comprises a sound dampening device which dampens sound vibrations emerging from the interior space.

公开(公告)号：EP2108076A1

公开(公告)日：2009-10-14

申请号：EP07822658.6

申请日：2007-11-16

申请人： Robert Bosch GmbH

发明人： HAEBERER, Rainer ,  HORN, Matthias

IPC分类号： F01N3/20

CPC分类号： F01N3/206 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/1406 ,  F01N2610/1466 ,  F01N2610/1486 ,  Y02T10/24

摘要： The invention relates to a fluid line (202) for a reducing agent tank (200) of a system for removing nitrogen oxides, said fluid line comprising a ventilation heater (220) which extends at least along one longitudinal section of the fluid line and is designed to heat said line.

公开(公告)号：EP2094954A1

公开(公告)日：2009-09-02

申请号：EP07847188.5

申请日：2007-11-15

申请人： Robert Bosch GmbH

发明人： HAEBERER, Rainer ,  HORN, Matthias ,  LUEDERS, Hartmut ,  BERNEGGER, Leopold

IPC分类号： F01N3/20 ,  B01D53/90

CPC分类号： F01N3/2066 ,  F01N11/00 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/14 ,  F01N2610/1406 ,  F01N2610/1493 ,  Y02T10/24 ,  Y02T10/47

摘要： The invention relates to a metering device (200) for introducing liquid reducing agent into an exhaust gas tract (270), said device comprising a working tank (210) with contents (212), a delivery unit (220) which is connected to the working tank and the delivery direction of which can be reversed and a metering valve (230) which is connected to the delivery unit, is supplied with contents by the delivery unit and is designed to dispense the tank contents in a discharge direction. The metering valve is designed and connected to the delivery unit in such a way that the delivery unit establishes a negative pressure between the delivery unit and the metering valve when the delivery direction is reversed, said negative pressure causing gas to be drawn off through the metering valve against the discharge direction. The invention also relates to a method for operating a metering device for introducing liquid reducing agent into an exhaust gas tract. Said method comprises the steps: providing a delivery unit that is connected to a metering valve and to a working tank; discharging liquid reducing agent by means of a metering valve in a discharge direction. The method comprises the step of emptying the metering valve by drawing gas into an emptying flow direction, which is the opposite direction from the discharge direction, achieved by operating the delivery unit in the opposite direction to that of the delivery direction.

公开(公告)号：EP2076327A1

公开(公告)日：2009-07-08

申请号：EP07802583.0

申请日：2007-08-13

申请人： Robert Bosch GmbH

发明人： HAEBERER, Rainer ,  HORN, Matthias

IPC分类号： B01D53/79 ,  F01N3/20

CPC分类号： F01N3/206 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/1406 ,  Y02T10/24

摘要： The invention relates to a method for operating an internal combustion engine comprising a device in which nitrogen oxides, that are produced by combusting the fuel in the internal combustion engine in the presence of a liquid reducing agent (7), are reduced to nitrogen and water. The liquid reducing agent (7) is stored in the tank (1) that comprises an internal container (5) and an external container (3), and when the reducing agent (7) is solidified, it is melted in the internal container (5) by means of a first heating element (11). Said reducing agent (7) in the external container (3) is melted at predefined time periods by means of a second heating element (19) and the internal container (5) is filled with the melted reducing agent (7) from the external container (3). The invention also relates to a tank for storing a reducing agent (7), comprising an external container (3) in which an internal container (5) is accommodated. A first heating element (11) is received in the internal container (5) and the liquid reducing agent (7) can be removed from the internal container (5) by means of a removal device. Said external container (3) can be heated by a second heating element (19).

公开(公告)号：EP2027374A1

公开(公告)日：2009-02-25

申请号：EP07728393.5

申请日：2007-04-23

申请人： Robert Bosch GmbH

发明人： HAEBERER, Rainer ,  LANGE,Joerg ,  REUSING, Volker ,  REISER, Tobias ,  STEIN, Stefan

IPC分类号： F01N3/025 ,  F02M61/06 ,  F02M61/08 ,  F02M61/18

CPC分类号： F01N3/36 ,  F01N3/0253 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N9/00 ,  F01N9/002 ,  F01N2610/03 ,  F01N2610/1446 ,  F01N2610/1453 ,  F02M63/0215 ,  F02M2200/18 ,  Y02T10/47

摘要： The invention relates to a device for the regeneration, temperature loading and/or thermal management of a component, assigned to an exhaust system, of an internal combustion engine, comprising at least one injection valve (10, 100, 200) which injects a fluid, in particular fuel, into the exhaust system, preferably in chatter mode, for example as a function of the pressure of the supplied fluid, wherein the injection valve has a valve head (11, 110) and a valve seat (13, 130), wherein the geometries of the valve head (11, 110) and of the valve seat (13, 130) are designed in such a way that a fluidic force, acting on the injection valve (10, 100, 200), of the supplied fluid, drops continuously over a stroke (H) of the valve head (11, 110). The invention also relates to an injection valve having such valve-head and valve-seat geometries and to a corresponding method for the regeneration, temperature loading and/or thermal management of a component, assigned to an exhaust system, of an internal combustion engine.

公开(公告)号：EP1926626A2

公开(公告)日：2008-06-04

申请号：EP06806760.2

申请日：2006-09-08

申请人： ROBERT BOSCH GMBH

发明人： HAEBERER, Rainer ,  HORN, Matthias ,  WALLIS, Christoph

IPC分类号： B60K15/03

CPC分类号： F01N3/2066 ,  B60K13/04 ,  B60K2015/03427 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/1406 ,  F01N2610/1466 ,  Y02A50/2325 ,  Y02T10/24

摘要： The invention relates to a plastic vehicle tank (1; 21; 41; 51; 62; 121) for an aqueous urea solution used for reducing the hydrogen oxide content in exhaust gases of an internal combustion engine. In the preferred embodiment, the inventive tank comprises a functional unit (131) comprising at least one pump (57), at least one pressure control valve (61), at least one internal container (43, 129) provided with an internal electrical heating and at least one suction line (55; 63; 163). Said functional unit is preferably mounted in the form of a lid on the container opening for closing it.

公开(公告)号：EP1332282B1

公开(公告)日：2006-11-29

申请号：EP01980158.8

申请日：2001-09-05

申请人： ROBERT BOSCH GMBH

发明人： HAEBERER, Rainer ,  HORN, Matthias ,  RETTICH, Andreas ,  HAJNOVIC, Robert

IPC分类号： F02M61/00

CPC分类号： F02M47/027 ,  F02M63/0017 ,  F02M63/0022 ,  F02M63/0036 ,  F02M63/022 ,  F02M2200/304 ,  F02M2547/003

摘要： The invention relates to an electromagnetic valve (2) for controlling an injection valve (1) of an internal combustion engine. Said electromagnetic valve comprises an electromagnet (34), a mobile armature (29), a control valve element (25, 26), which is moved with the armature (29), interacts with a valve seat (24), and which is provided for opening and closing a fuel drainage channel (17) of a control pressure space (14) of the injection valve. The electromagnetic valve also comprises a sliding piece (40), which guides the armature (29) and which, together with the armature (29) and the control valve element (25, 26), is arranged inside an armature space (51, 52). In order to reduce the armature rebound, the invention provides that the sliding piece (40) subdivides the armature space into a relieving space (52), which is connected to a fuel low-pressure connection (10), and into a hydraulic damping space (51), into which the fuel drainage channel (17) runs. Said damping space can be relieved from stress by at least one connecting channel (44, 47), which is provided with a restrictor (43, 48) and which leads up to the relieving space (52). As the electromagnetic valve (2) closes, a fuel pressure cushion acting upon the control valve element (25, 26) reduces the velocity of said control valve element (25, 26) before it comes into contact with the valve seat (24).

公开(公告)号：EP1144851B1

公开(公告)日：2005-12-07

申请号：EP00988551.8

申请日：2000-10-27

申请人： ROBERT BOSCH GMBH

发明人： HAEBERER, Rainer ,  FLEINER, Wolfgang

IPC分类号： F02M55/00 ,  F02M63/02

CPC分类号： F02M55/007 ,  F02M37/0047 ,  F02M63/0225

摘要： The invention relates to a fuel injection system, especially a common rail system, for supplying fuel in internal combustion engines, especially diesel engines of commercial vehicles. The inventive system comprises a low pressure circuit (1-9), wherein at least one low pressure feed pump (5, 7) supplies fuel from a fuel tank (1) to a high pressure pump (10) which conveys the fuel that is impinged upon with high pressure to a central high pressure storage device (17) for fuel. The aim of the invention is to simplify ventilation of the low pressure circuit. A device (22; 25, 27; 34, 35) is provided for reducing the pressure in the low pressure circuit (1-9).

公开(公告)号：EP1339969A1

公开(公告)日：2003-09-03

申请号：EP01971627.3

申请日：2001-08-21

申请人： ROBERT BOSCH GMBH

发明人： KUEHNE, Wolfgang ,  HAEBERER, Rainer ,  HORN, Matthias ,  ULMSCHNEIDER, Christoph ,  RETTICH, Andreas

IPC分类号： F02M59/46 ,  F02M47/02

CPC分类号： F16K31/0651 ,  F02M47/027 ,  F02M63/0021 ,  F02M63/0022 ,  F02M63/0036 ,  F02M2200/304 ,  F02M2200/306 ,  F02M2547/003 ,  F16K31/0665

摘要： The invention relates to a magnetic valve whose magnet armature has a part (50), which can be displaced in a sliding manner on the armature pin (27) and which can move between two stops (41, 43) of the armature pin (27) counter to the tensioning force of a return spring (35). When the magnet armature strikes against the valve seat (24) of the magnetic valve, the part (50) that can be displaced in a sliding manner is, under the influence of its inert mass, forced to continue to move out of the armature pin (27) in the closing direction counter to the tensioning force of the return spring (35) until the part abuts against the second stop (41) of the armature pin (27). The resulting pulse transmission to the armature pin (27) reduces a rebound of the armature on the valve seat (24) and causes the armature to arrive in a defined position of rest more rapidly in which the magnetic valve is closed.

摘要翻译： 电磁阀技术领域本发明涉及一种电磁阀，该电磁阀的电枢具有可在电枢销（27）上滑动移动并且可在电枢销（27）的两个止动件（41,43）之间移动的部件 ）与回位弹簧（35）的张紧力相反。 当衔铁撞击电磁阀的阀座（24）时，能够以滑动方式移动的部件（50）在其惰性质量的影响下被迫继续移出衔铁销 （27）在闭合方向上抵抗复位弹簧（35）的张紧力，直到该部分抵靠衔铁销（27）的第二止动件（41）。 所产生的通向衔铁销（27）的脉冲传输减少了阀座（24）上的衔铁的回弹，并且导致衔铁更快地到达其中磁阀关闭的静止的限定位置。