Armature for a Solenoid Actuator
    132.
    发明公开
    Armature for a Solenoid Actuator 有权
    电磁执行器的电枢

    公开(公告)号:EP2322797A1

    公开(公告)日:2011-05-18

    申请号:EP09175837.5

    申请日:2009-11-12

    Inventor: Cooke, Michael

    Abstract: An armature (132; 232; 332) for a solenoid actuator is disclosed. The armature comprises a first face (170; 270; 370) comprising a recess (174; 274; 374) suitable for receiving a biasing spring in use of the armature; a second face (172; 272; 372) opposite the first face (170; 270; 370); and fluid communication means (178; 210; 310) for providing a fluid flow path through the armature between the recess (174; 274; 374) and the second face (172; 272; 372) in use of the armature. The first face (170; 270; 370) is uninterrupted by the fluid communication means (178; 210; 310). The invention reduces the risk of cavitation damage during operation of the actuator. In one application, the actuator is used in a fluid pump (100; 200) for a selective catalytic reduction system.

    Abstract translation: 公开了一种用于电磁致动器的电枢(132; 232; 332)。 所述电枢包括第一面(170; 270; 370),所述第一面(170; 270; 370)包括适于在使用所述电枢时接收偏置弹簧的凹槽(174; 274; 374) 与第一面(170; 270; 370)相对的第二面(172; 272; 372); 和流体连通装置(178; 210; 310),用于在所述衔铁的使用中提供穿过所述凹部(174; 274; 374)和所述第二面(172; 272; 372)之间的所述衔铁的流体流动路径。 第一面(170; 270; 370)不被流体连通装置(178; 210; 310)中断。 本发明降低了致动器操作期间的气穴损伤风险。 在一个应用中,致动器用于选择性催化还原系统的流体泵(100; 200)。

    Pump assembly
    134.
    发明公开
    Pump assembly 有权
    泵组件

    公开(公告)号:EP2299114A1

    公开(公告)日:2011-03-23

    申请号:EP09169972.8

    申请日:2009-09-10

    Abstract: A pump assembly for an internal combustion engine comprising a pump housing (40), at least one pumping arrangement having a pumping plunger (56, 58) for pressurising fluid within a pump chamber; a drive shaft (46) carrying a cam (48) and a cam rider (50) which cooperates with the pumping arrangement to drive plunger movement along a plunger axis; and a plate (74; 174; 274; 374) coupled, on one side (74b), to the cam rider (50) and, on its other side (74a), to the housing (40) by coupling means (84, 86, 80, 82; 84, 180; 280, 286; 380, 480).The coupling means is arranged to constrain movement of the plate (74; 174; 274; 374) relative to the housing (40) in a first linear direction and to constrain movement of the cam rider (50) relative to the plate in a second linear direction, and to prevent angular movement of the cam rider (50) about its axis. Wear of the plunger, or of any intermediate component between the cam rider and the plunger, can be reduced as the cam rider is unable to tilt about its axis.

    Abstract translation: 1。一种用于内燃机的泵组件,包括泵壳体(40),至少一个泵送装置,所述泵送装置具有用于对泵腔内的流体加压的泵送柱塞(56,58) 承载凸轮(48)的驱动轴(46)以及与泵送装置配合以驱动柱塞沿柱塞轴线运动的凸轮滑行器(50);其中, 和一个在一侧(74b)上与凸轮滑块(50)连接并且在其另一侧(74a)通过连接装置(84)与壳体(40)连接的板(74; 174; 274; 374) 所述联接装置被布置成限制所述板(74; 174; 274; 374)相对于所述壳体(40)的运动为第一线性 并且限制凸轮滑块(50)相对于滑板在第二直线方向上的运动,并且防止凸轮滑块(50)绕其轴线的角运动。 由于凸轮骑手不能绕其轴线倾斜,所以可以减少柱塞或凸轮骑手与柱塞之间的任何中间部件的磨损。

    Method of dosing reagent
    135.
    发明公开
    Method of dosing reagent 有权
    Verfahren zur Dosierung der Reagenz

    公开(公告)号:EP2295747A1

    公开(公告)日:2011-03-16

    申请号:EP10187322.2

    申请日:2009-05-22

    Abstract: A method of dosing a reagent into an exhaust gas stream of an internal combustion engine (3) having an SCR catalyst, the method comprising injecting reagent from a reagent tank (20) into the exhaust gas stream at a position upstream of the SCR catalyst using a reagent injector (40) in accordance with a first dosing schedule in order to remediate a predetermined proportion of NOx in the exhaust gas stream, the first dosing schedule being associated with a first range of engine operating conditions; and injecting reagent from the reagent tank (20) into the exhaust gas stream at a position upstream of the SCR catalyst using a reagent injector (40) in accordance with a second dosing schedule in order to enable heat transfer between the reagent injector (40) and said injected reagent, the second dosing schedule being associated with a second range of engine operating conditions.
    Dosing in accordance with said first or said second dosing schedule is carried out in dependence on whether engine operating conditions lie within said first or said second range of engine operating conditions, and the proportion of NOx in the exhaust gas stream which is remediated by dosing using said second dosing schedule is less than said predetermined portion. The method further comprises sensing the level of reagent in the reagent tank (20); and halting the first dosing schedule when the sensed level of reagent drops below a predetermined level.

    Abstract translation: 一种将试剂投入到具有SCR催化剂的内燃机(3)的排气流中的方法,该方法包括将试剂罐(20)中的试剂从SCR催化剂上游位置的排气流中注入,使用 根据第一给药方案的试剂注射器(40),以便修复废气流中的预定比例的NOx,第一给药方案与第一范围的发动机操作条件相关联; 以及根据第二给药方案,使用试剂注射器(40)在所述SCR催化剂上游的位置将试剂从所述试剂罐(20)注入所述排气流中,以使得所述试剂注入器(40) 和所述注射试剂,所述第二给药方案与第二范围的发动机操作条件相关联。 根据所述第一或第二给料计划的剂量是根据发动机操作条件是否在发动机操作条件的所述第一或所述第二范围内以及排气流中的NOx的比例通过配量使用 所述第二给药方案小于所述预定部分。 该方法还包括感测试剂罐(20)中的试剂的水平; 并且当感测到的试剂水平低于预定水平时停止第一给药方案。

    Three-way control valve
    136.
    发明公开
    Three-way control valve 有权
    Dreiwege-Steuerventil

    公开(公告)号:EP2290219A1

    公开(公告)日:2011-03-02

    申请号:EP09168747.5

    申请日:2009-08-26

    CPC classification number: F02M47/027 F02M63/004 F02M63/0045

    Abstract: A three-way control valve for controlling communication between (a) a first passage (38) and a second passage (36) and (b) a third passage (30) and the second passage (36), comprises a first housing (14) provided with a guide bore (34) for a control valve member (32a, 32b), whereby movement of the control valve member (32a, 32b) is guided within the guide bore (34). The valve includes a first valve seat (48), defined by a second housing (12), with which the control valve member is engageable to control communication between the first and second passages (38, 36), and a second valve seat (50) defined by the first housing (14) with which the control valve member is engageable to control communication between the second and third passages (36, 30). An intermediate housing (16) is located between the first and second housings (14, 12), the second passage (36) being defined within the intermediate housing (16). The invention also extends to a fuel injector for a high pressure fuel injection system comprising such a three-way control valve.

    Abstract translation: 一种用于控制(a)第一通道(38)和第二通道(36)和(b)第三通道(30)和第二通道(36)之间的连通的三通控制阀,包括第一壳体(14) )设置有用于控制阀构件(32a,32b)的引导孔(34),由此控制阀构件(32a,32b)的移动在引导孔(34)内被引导。 所述阀包括由第二壳体(12)限定的第一阀座(48),所述控制阀构件通过所述第一阀座可接合以控制所述第一和第二通道(38,36)之间的连通,以及第二阀座(50) ),所述第一壳体(14)由所述控制阀构件与所述第一壳体(14)限定,以控制所述第二和第三通道(36,30)之间的连通。 中间壳体(16)位于第一和第二壳体(14,12)之间,第二通道(36)限定在中间壳体(16)内。 本发明还延伸到用于包括这种三通控制阀的高压燃料喷射系统的燃料喷射器。

    FUEL INJECTOR
    139.
    发明公开
    FUEL INJECTOR 有权
    燃料喷射阀

    公开(公告)号:EP2268913A1

    公开(公告)日:2011-01-05

    申请号:EP09733295.1

    申请日:2009-03-30

    CPC classification number: F02M45/086 F02M61/1813 F02M61/182 F02M2200/46

    Abstract: A fuel injector mountable with respect to a combustion chamber for delivering fuel thereto, the combustion chamber comprising a chamber ceiling (30) and a chamber wall, the fuel injector comprising a nozzle body (21) having a primary nozzle axis (A- A); a first outlet opening (23; 33) having a first axis (27; 37); a second outlet opening (24; 34) having a second axis (28; 38); and means for controlling fuel delivery through the first and second outlet openings (23, 24; 33, 34). The means for controlling fuel delivery comprises an inner valve needle and an outer valve needle, and is arranged to permit fuel delivery from only the first outlet opening (23, 33), or through both the first and second outlet openings (23, 24; 33, 34) together. The first and second outlet openings (23, 24; 33, 34) are oriented such that, in use, when fuel delivery is permitted through only said first outlet opening (23; 33), a first spray formation is injected along the first axis (27; 37), the first spray formation reaching a first target distance below said chamber ceiling (30) at a radial distance from the primary nozzle axis (A-A). When fuel delivery is permitted through both openings (23, 24; 33, 34) together, respective first and second spray formations are injected along the respective first and second axes (27, 28; 37, 38) to merge externally of the injector so as to give rise to a combined spray formation having a third axis (29; 39). The combined spray formation reaches a second targetdistance below said chamber ceiling (30) at said radial distance from the primary nozzle axis (A-A), and is substantially equivalent to a spray formation delivered as if from a single outlet opening having a diameter greater than that of the first outlet opening (23; 33). The first target distance is less than the second target distance.

    Insulated reagent dosing device
    140.
    发明公开
    Insulated reagent dosing device 有权
    Isolierte Reaktionsmittel Dosiervorrichtung

    公开(公告)号:EP2253814A1

    公开(公告)日:2010-11-24

    申请号:EP10168050.2

    申请日:2007-06-12

    Inventor: Cooke, Michael

    Abstract: A dosing device (1) for administering a reducing agent (2) into an exhaust chamber (4) of an internal combustion engine, and being adapted for mounting within a port (10) of said exhaust chamber (4), the device comprising: a nozzle body (6) having a first end (27) from which reducing agent is sprayed and a second end (28), the first end (27) comprising a first mounting point (8) and the second end (28) comprising a second mounting point (9); an insulating jacket (5) at least partially surrounding the nozzle body (6) and being mounted to the nozzle body (6) at the first and second mounting points (8, 9) so as to define a compartment (11) between the insulating jacket (5) and the nozzle body (6). The compartment (11) is substantially evacuated and the dosing device (1) is configured such that, when the dosing device (1) is mounted within the port (10) of the exhaust chamber (4), the nozzle body (6) is separated from the port (10) by the substantially evacuated compartment (11), the insulating jacket (5) thereby serving to insulate the nozzle body (5) from the port (10). The dosing device of the invention is advantageously insulated from the elevated temperatures in the surrounding environment, thereby allowing for the reagent to be maintained at an optimal working temperature range.

    Abstract translation: 一种用于将还原剂(2)施用到内燃机的排气室(4)中并适于安装在所述排气室(4)的端口(10)内的计量装置(1),所述装置包括: 具有喷射还原剂的第一端(27)和第二端(28)的喷嘴体(6),所述第一端(27)包括第一安装点(8)和所述第二端(28),所述第二端 第二安装点(9); 绝缘护套(5),其至少部分地围绕所述喷嘴体(6)并且在所述第一和第二安装点(8,9)处安装到所述喷嘴体(6),以便在所述绝缘体 护套(5)和喷嘴体(6)。 隔室(11)基本上被排空,并且配量装置(1)构造成使得当定量装置(1)安装在排气室(4)的端口(10)内时,喷嘴体(6)是 通过基本抽空的隔室(11)与端口(10)分离,绝缘套(5)用于使喷嘴体(5)与端口(10)绝缘。 本发明的给药装置有利地与周围环境中的升高的温度绝缘,从而允许将试剂保持在最佳工作温度范围。

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