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    • 21. 发明申请
    • FUEL INJECTION CONTROL IN AN INTERNAL COMBUSTION ENGINE
    • 内燃机燃油喷射控制
    • WO2016091848A1
    • 2016-06-16
    • PCT/EP2015/078917
    • 2015-12-08
    • DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.À R.L.
    • COUET, SebastienCOCHET, ThierryARCHAMBAULT, PhilippeFASOLO, ChristianDE OLIVEIRA, FabienMEISSONNIER, Guillaume
    • F02D41/20F02D41/24F02D41/40
    • F02D41/2467F02D41/20F02D41/40F02D2041/2051F02D2041/2055F02D2200/0618Y02T10/44
    • A method of fuel injection control in an internal combustion engine having at least one cylinder with an associated solenoid actuated fuel injector for performing injector events is presented. The injector has a valve group with a needle, which is at least indirectly controlled by a pressure force in a control chamber, which is in turn controlled by a control valve operated by the solenoid actuator. The method comprising the steps of: a) performing at least one injector event by applying, to said electromagnetic actuator, a drive pulse having a predetermined pulse width (PW); b) recording the voltage across said electromagnetic actuator, after the end of the drive pulse; c) processing the recorded voltage data to identify a predetermined waveform pattern in the corresponding secondary voltage derivative, following the end of the drive pulse; and d) computing a valve indicator (FWM) representative of the magnitude of said predetermined waveform pattern. This valve indicator can be used in a variety of applications related to injection control, and over the full injector operating range, e.g. for monitoring viscosity or lacquering, determining MDP, correcting for drift or voltage changes, determining the control valve lift.
    • 提出了一种具有至少一个气缸的内燃机中的燃料喷射控制方法,所述气缸具有用于执行喷射器事件的相关联的电磁致动燃料喷射器。 喷射器具有带针的阀组,其至少由控制室中的压力间接​​地控制,控制室又由由螺线管致动器操作的控制阀控制。 该方法包括以下步骤:a)通过向所述电磁致动器施加具有预定脉冲宽度(PW)的驱动脉冲来执行至少一个喷射器事件; b)在驱动脉冲结束之后记录所述电磁致动器的电压; c)处理记录的电压数据,以在驱动脉冲结束之后识别相应次级电压导数中的预定波形图案; 以及d)计算代表所述预定波形图案的幅度的阀门指示器(FWM)。 该阀指示器可用于与注射控制相关的各种应用中,并且可以在整个喷射器工作范围内使用。 用于监测粘度或涂漆,确定MDP,校正漂移或电压变化,确定控制阀升程。
    • 25. 发明申请
    • FUEL INJECTION NOZZLE
    • 燃油喷射喷嘴
    • WO2015091180A1
    • 2015-06-25
    • PCT/EP2014/077316
    • 2014-12-11
    • DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.À R.L.
    • LABBE, GuillaumeLANE, David JLECLUSE, EricBALIN, MarionBONNEAU, DavidOGE, Jean-Christophe
    • F02M47/02F02M61/12
    • F02M61/12F02M47/027F02M2200/28
    • According to an aspect of the present invention, there is provided a fuel injection nozzle for injecting fuel into a combustion chamber of an internal combustion engine. The nozzle includes a nozzle body having a bore for receiving fuel from a supply line for pressurized fuel. At least one injection opening is provided for delivering fuel from the bore to the combustion chamber, the at least one injection opening having a total cross sectional area (A tot ). A needle is longitudinally displaceable within the bore between a closed position in which the flow of fuel through the at least one injection opening into the combustion chamber is prevented, and an injection position in which the flow of fuel through the at least one injection opening into the combustion chamber is enabled. A restriction is provided for restricting the flow of fuel through the bore. The restriction is dimensioned as a function of the total cross sectional area (A tot ) of the at least one injection opening.
    • 根据本发明的一个方面,提供了一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射喷嘴。 喷嘴包括具有用于从用于加压燃料的供给管线接收燃料的孔的喷嘴体。 提供至少一个注射开口用于将燃料从孔传送到燃烧室,所述至少一个注射开口具有总横截面面积(Atot)。 针可以在孔内纵向移动,在关闭位置之间,其中通过进入燃烧室的至少一个喷射开口的燃料流被阻止,以及喷射位置,其中通过至少一个喷射开口的燃料流进入 燃烧室启用。 提供了限制燃料通过孔的流动的限制。 该限制的尺寸被确定为至少一个注射开口的总横截面面积(Atot)的函数。
    • 28. 发明申请
    • VALVE ARRANGEMENT
    • 阀安排
    • WO2014067678A1
    • 2014-05-08
    • PCT/EP2013/065952
    • 2013-07-30
    • DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.À.R.L.
    • ROUILLON, RaphaelPEREIRA, EtienneTRENADO, GuillaumeROUET, Jean-Luc
    • F02M63/00F02M37/00F16K15/04
    • F02M63/025F02D41/3863F02M37/0029F02M63/005F02M63/0056F16K15/044F16K17/0406F16K17/048F16K27/0245Y10T137/7848
    • A valve arrangement (28) for use in limiting the pressure of fuel within an accumulator volume of an accumulator fuel system to a predetermined threshold level, the valve arrangement (28) comprising: a valve outlet (64, 66) for communication with a low pressure drain;a valve housing (30) provided with a valve housing bore for receiving fuel from the accumulator volume; and a valve member (50) having a closed position in which it is engaged with a valve seating (56) defined by the valve housing bore (48) to prevent fuel flow from the accumulator volume to the valve outlet (64, 66). The valve arrangement further comprises biasing means (70) for urging the valve member (50) towards the valve seating (56); a first restricted flow means (80) for restricting the flow of fuel between the accumulator volume and the valve outlet (64, 66) during a first stage of valve opening movement as soon as the valve member (50) is lifted from the valve seating (56); a second restricted flow means (82) effective during a second stage of valve opening movement which follows the first stage to provide a greater restriction than during the first stage; and a third restricted flow means (84) effective during a third stage of valve opening movement which follows the second stage to provide a variable restriction to fuel flow dependent on the extent of opening movement of the valve member (50). of the first, second and third restricted flow means (80, 82, 84) is defined between the valve member (50) and the valve housing bore (48).
    • 一种用于将蓄能器燃料系统的蓄能器容积内的燃料压力限制到预定阈值水平的阀装置(28),所述阀装置(28)包括:用于与低通量连通的阀出口(64,66) 压力排放口;阀壳体(30),其设置有用于从所述蓄存器容积接收燃料的阀壳体孔; 以及阀构件(50),其具有关闭位置,在所述关闭位置中,所述阀构件与由所述阀壳孔(48)限定的阀座(56)接合,以防止燃料从所述蓄存器容积流到所述阀出口(64,66)。 阀装置还包括用于将阀构件(50)推向阀座(56)的偏置装置(70)。 一个第一受限流动装置(80),一旦阀构件(50)从阀座升起时,用于在阀开启运动的第一阶段期间限制储液器容积和阀出口(64,66)之间的燃料流 (56); 第二限制流动装置(82),其在阀开启运动的第二阶段期间有效,其在第一阶段之后提供比在第一阶段期间更大的限制; 以及第三受限流动装置(84),其在阀开启运动的第三阶段期间有效,所述第三阶段遵循所述第二阶段,以根据所述阀构件(50)的打开运动的程度为燃料流动提供可变的限制。 的第一,第二和第三限制流动装置(80,82,84)限定在阀构件(50)和阀壳体孔(48)之间。
    • 29. 发明申请
    • PUMP ASSEMBLY
    • 泵组件
    • WO2014063859A1
    • 2014-05-01
    • PCT/EP2013/068728
    • 2013-09-10
    • DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.À.R.L.
    • WRIGHT, Keith
    • F04B13/00F04B17/04F04B53/08F04B53/16
    • F04B13/00F01N3/2066F01N2610/1433F04B17/042F04B53/08F04B53/16
    • Housing sub-assembly for a pump assembly (230) for use in a selective catalytic reduction system, the housing sub-assembly comprising: a main body (232) having a pump axis (A), the main body comprising a pumping zone cavity (248) having a main axis substantially coincident with axis A, and comprising a flow guide cavity (252) disposed about axis A; an outer pole member (268) and a solenoid coil (264) disposed within the main body (232); wherein the main body further comprises a reagent inlet port (234) for receiving a reagent for supply to the pumping zone cavity (248) via a reagent flow path (246) and first and second coolant ports (236, 238) for supplying coolant to and removing coolant from the flow guide cavity (252); wherein the main body, first and second coolant ports and reagent inlet port are integrally formed as a single component (230).
    • 一种用于选择性催化还原系统的泵组件(230)的壳体子组件,所述壳体子组件包括:具有泵轴线(A)的主体(232),所述主体包括泵送区腔 248),其主轴线基本上与轴线A重合,并且包括围绕轴线A设置的导流腔(252); 设置在主体(232)内的外部磁极构件(268)和螺线管线圈(264); 其中所述主体还包括试剂入口(234),用于经由试剂流路(246)和第一和第二冷却剂端口(236,238)接收用于供应到所述泵送区腔(248)的试剂,用于将冷却剂供应到 以及从所述导流腔(252)移除冷却剂; 其中主体,第一和第二冷却剂端口和试剂入口一体地形成为单个部件(230)。
    • 30. 发明申请
    • FUEL INJECTOR
    • 喷油器
    • WO2013186051A1
    • 2013-12-19
    • PCT/EP2013/061054
    • 2013-05-29
    • DELPHI TECHNOLOGIES HOLDING S.À.R.L.
    • GRAHAM, Mark
    • F02M47/02
    • F02M63/0014F02M47/02F02M63/0015F02M63/0022F02M2547/001
    • The present invention relates to a fuel injector (101; 201) for use in delivering fuel to an internal combustion engine. The fuel injector (101; 201) includes a nozzle (105; 205) having a valve needle (107; 207) which is movable with respect to a valve needle seat (117; 217). The valve needle (107; 207) travels through a range of movement between a closed position and an open position to control fuel delivery through at least one nozzle outlet (109). The valve needle (107) cooperates with a needle sleeve (111) or a control member (211) which is located in a piston guide (133). The valve needle (107) is movable relative to the needle sleeve (111) or the control member (211). The needle sleeve (111) or the control member (211) is movable relative to the piston guide (133; 233). The invention also relates to a method of operating a fuel injector (101; 201); and a fuel injector control unit.
    • 本发明涉及一种用于向内燃机输送燃料的燃料喷射器(101; 201)。 燃料喷射器(101; 201)包括具有相对于阀针座(117; 217)可移动的阀针(107,207)的喷嘴(105; 205)。 阀针(107; 207)在关闭位置和打开位置之间移动一定范围的运动,以控制通过至少一个喷嘴出口(109)的燃料输送。 阀针(107)与位于活塞引导件(133)中的针套(111)或控制件(211)配合。 阀针(107)能够相对于针套(111)或控制构件(211)移动。 针筒(111)或控制件(211)可相对于活塞导向件(133; 233)移动。 本发明还涉及一种操作燃料喷射器(101; 201)的方法; 和燃料喷射器控制单元。