COMPRESSION-IGNITION ENGINE WITH EXHAUST SYSTEM
    41.
    发明申请
    COMPRESSION-IGNITION ENGINE WITH EXHAUST SYSTEM 审中-公开
    具有排气系统的压缩式点火发动机

    公开(公告)号:WO2011086129A1

    公开(公告)日:2011-07-21

    申请号:PCT/EP2011/050400

    申请日:2011-01-13

    Inventor: SCHREURS, Bart

    Abstract: A compression-ignition engine (10) comprises an exhaust system (16) with an exhaust gas after-treatment assembly, the after-treatment assembly comprising a three-way catalyst device (30) and an SCR device (34), the three-way catalyst device being arranged upstream the SCR device in close-coupled position with respect to the engine. An engine control unit (47) is provided for controlling operation of the engine. The engine control unit is configured to monitor the temperature of the SCR device and to control the engine to change over from an operation with a lean air/fuel mixture to an operation with a stoichiometric or a rich air/fuel mixture in response to the temperature of the SCR device dropping below a temperature threshold.

    Abstract translation: 压缩点火发动机(10)包括具有废气后处理组件的排气系统(16),所述后处理组件包括三元催化剂装置(30)和SCR装置(34) 在SCR装置的上游相对于发动机处于紧密联接的位置。 发动机控制单元(47)用于控制发动机的运转。 发动机控制单元被配置为监测SCR装置的温度并且控制发动机从利用稀薄空气/燃料混合物的操作转变为响应于温度的化学计量或富空气/燃料混合物的操作 的SCR器件降低到温度阈值以下。

    FUEL INJECTOR COMMUNICATION SYSTEM
    42.
    发明申请
    FUEL INJECTOR COMMUNICATION SYSTEM 审中-公开
    燃油喷射器通讯系统

    公开(公告)号:WO2011064270A1

    公开(公告)日:2011-06-03

    申请号:PCT/EP2010/068155

    申请日:2010-11-24

    Abstract: An injector (50) for a fuel injection system comprising: input means (51a, 51b) for receiving drive signals from an injector drive circuit (76) for controlling operation of the injector, and; an ID chip (62) wherein the injector further comprises an electronic latch means (68) arranged to move between a first state in which the electronic latch means is arranged to be enabled such that the ID chip is in communication with the injector drive circuit via the input means, and a second state in which the electronic latch means is arranged to be disabled such that the ID chip is not in communication with the injector drive circuit via the input means wherein the electronic latch means is arranged to move from the first state to the second state upon receipt at the injector of a drive pulse signal from the injector drive circuit.

    Abstract translation: 一种用于燃料喷射系统的喷射器(50),包括:用于接收来自喷射器驱动电路(76)的用于控制喷射器的操作的驱动信号的输入装置(51a,51b) ID芯片(62),其中所述注射器还包括电子锁定装置(68),其被布置成在所述电子锁存装置被布置为能够被启用的第一状态之间移动,使得所述ID芯片与所述注射器驱动电路经由 输入装置和第二状态,其中电子锁存装置被布置为禁用,使得ID芯片经由输入装置不与喷射器驱动电路连通,其中电子锁存装置被布置成从第一状态 在来自喷射器驱动电路的驱动脉冲信号在喷射器处接收到第二状态。

    FUEL INJECTOR
    43.
    发明申请
    FUEL INJECTOR 审中-公开
    喷油器

    公开(公告)号:WO2011054613A1

    公开(公告)日:2011-05-12

    申请号:PCT/EP2010/064853

    申请日:2010-10-05

    Inventor: DINGLE, Philip

    CPC classification number: F02M47/027 F02M45/12 F02M63/004

    Abstract: A fuel injector (100; 200; 300) for an internal combustion engine is disclosed. The injector includes a slave piston (130; 230; 330) provided with a control bore (144; 244; 344) and associated with a valve needle (110; 210; 310), such that movement of the slave piston causes movement of the valve needle. An end of the slave piston remote from the valve needle is exposed to fuel pressure in a control chamber (152; 252; 352) of the injector, in use. A control piston (148; 348) is operable to move relative to the slave piston so as to control fuel flow through first and second control ports that connect the control bore to a high-pressure fuel supply and a low-pressure drain respectively. By suitable positioning of the control piston, the valve needle can be biased in an opening direction and in a closing direction and, optionally, the valve needle can be held in one or more intermediate positions between its fully-lifted and fully-seated positions. Proportional control of the position and velocity of the valve needle is possible, and a low-force actuator can be used to control the valve needle.

    Abstract translation: 公开了一种用于内燃机的燃料喷射器(100; 200; 300)。 喷射器包括设置有控制孔(144; 244; 344)并与阀针(110; 210; 310)相关联的从动活塞(130; 230; 330),使得从动活塞的运动引起 阀针。 远离阀针的从活塞的一端在使用中暴露于喷射器的控制室(152; 252; 352)中的燃料压力。 控制活塞(148; 348)可操作以相对于从动活塞移动,以便控制通过分别将控制孔连接到高压燃料供应和低压排放的第一和第二控制口的燃料流。 通过控制活塞的适当定位,阀针可以沿打开方向和关闭方向偏置,并且可选地,阀针可以保持在其完全提升和完全就位之间的一个或多个中间位置。 可以对阀针的位置和速度进行比例控制,并且可以使用低力致动器来控制阀针。

    VALVE ASSEMBLY
    44.
    发明申请
    VALVE ASSEMBLY 审中-公开
    阀组件

    公开(公告)号:WO2014012695A1

    公开(公告)日:2014-01-23

    申请号:PCT/EP2013/061053

    申请日:2013-05-29

    Abstract: An inlet valve assembly (14) for a high-pressure fuel pump is disclosed. The inlet valve assembly comprises an inlet valve member (28) moveable between open and closed positions to control the fuel flow from a source (24) of low-pressure fuel to a pumping chamber (16) of the fuel pump, a first biasing spring (70) arranged to apply a first force to the valve member (28) in an opening direction, a second biasing spring (74) arranged to apply a second force to the valve member (28) in a closing direction, and an actuator arrangement (50) operable to remove the first force from the valve member (28), thereby to allow the valve member (28) to move into its closed position.

    Abstract translation: 公开了一种用于高压燃料泵的入口阀组件(14)。 入口阀组件包括可在打开位置和关闭位置之间移动的入口阀构件(28),以控制从低压燃料源(24)到燃料泵的泵送室(16)的燃料流;第一偏置弹簧 (70),被布置成沿打开方向向所述阀构件施加第一力;第二偏置弹簧(74),布置成沿关闭方向向所述阀构件施加第二力;以及致动器装置 (50)可操作以从阀构件(28)移除第一力,从而允许阀构件(28)移动到其关闭位置。

    INTERNAL COMBUSTION ENGINE
    45.
    发明申请
    INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机

    公开(公告)号:WO2013174660A1

    公开(公告)日:2013-11-28

    申请号:PCT/EP2013/059689

    申请日:2013-05-09

    Inventor: GRAHAM, Mark

    Abstract: An overhead-camshaft internal combustion engine is disclosed, in which the fuel pumps are arranged to use efficiently the space within a cylinder head assembly (100) of the engine. The cylinder head assembly (100) includes a cylinder head block (102), and the engine comprises a camshaft (106) mounted longitudinally with respect to the cylinder head assembly (100), the camshaft (106) being rotatable about a camshaft axis (A) and having a plurality of inlet and exhaust cams for actuating associated inlet and exhaust valves (116a; 116b) of the engine, and at least one fuel pump comprising a unit pump assembly (110) driven directly by a respective pump cam (130) provided on the camshaft (106), the unit pump assembly (110) being elongate to define a pump axis (P). The engine further comprises a plurality of rocker arms (118) driven by the inlet and exhaust cams and arranged to actuate the inlet and exhaust valves (116a, 116b). Each rocker arm (118) is pivotable about a rocker arm axis (R) which is substantially parallel to the camshaft axis (A). The or each pump assembly (110) is mounted between the rocker arm axis (A) and the cylinder head block (102).

    Abstract translation: 公开了一种顶置凸轮轴内燃机,其中燃料泵被布置成有效地使用发动机的气缸盖组件(100)内的空间。 气缸盖组件(100)包括气缸盖块(102),并且发动机包括相对于气缸盖组件(100)纵向安装的凸轮轴(106),凸轮轴(106)能够围绕凸轮轴轴线 A)并且具有用于致动发动机的相关联的入口和排气阀(116a; 116b)的多个入口和排气凸轮,以及包括由相应的泵凸轮(130)直接驱动的单元泵组件(110)的至少一个燃料泵 )设置在所述凸轮轴(106)上,所述单元泵组件(110)是细长的,以限定泵轴线(P)。 发动机还包括多个由入口和排气凸轮驱动的摇臂(118),并被布置成致动入口和排气门(116a,116b)。 每个摇臂(118)可围绕基本上平行于凸轮轴轴线(A)的摇臂轴线(R)枢转。 所述或每个泵组件(110)安装在摇臂轴线(A)和气缸盖块(102)之间。

    CHECK VALVE ASSEMBLY
    46.
    发明申请
    CHECK VALVE ASSEMBLY 审中-公开
    检查阀组件

    公开(公告)号:WO2013149826A1

    公开(公告)日:2013-10-10

    申请号:PCT/EP2013/055711

    申请日:2013-03-19

    Abstract: A non-return valve assembly (100) for a high-pressure fuel injection system is disclosed. The valve (100) comprises a valve chamber (102) defined in part by a first body (106) and in part by a second body (108) and defining a valve chamber wall (118), an inlet passage (110) formed in the first body (106) and opening into the valve chamber (102) at a valve seat (116) defined by the first body (106), an outlet passage (112), and a valve ball (114) received within the valve chamber (102) and engageable with the valve seat (116) so as to interrupt fluid flow from the outlet passage (112) to the inlet passage (110) through the valve chamber (102). The valve chamber wall (118) comprises a plurality of guide portions (122a) to guide the valve ball (114) in substantially linear movement within the valve chamber (102).

    Abstract translation: 公开了一种用于高压燃料喷射系统的止回阀组件(100)。 阀门(100)包括由第一主体(106)部分地限定并且部分地由第二主体(108)限定并限定阀室壁(118)的阀室(102),入口通道(110)形成在 第一主体(106)并且在由第一主体(106)限定的阀座(116)处开口进入阀室(102),出口通道(112)和容纳在阀室内的阀球(114) (102)并且可与阀座(116)接合,以便阻止通过阀室(102)从出口通道(112)到入口通道(110)的流体流动。 阀室壁(118)包括多个引导部分(122a),以在阀室(102)内基本线性运动地引导阀球(114)。

    FUEL INJECTOR
    47.
    发明申请
    FUEL INJECTOR 审中-公开
    喷油器

    公开(公告)号:WO2013104782A1

    公开(公告)日:2013-07-18

    申请号:PCT/EP2013/050535

    申请日:2013-01-14

    Abstract: A fuel injector for use in a fuel system for an internal combustion engine is disclosed. The fuel injector comprises a supply means (24, 24a) for high pressure fuel, an injection nozzle (25) including a valve needle (26) which is engageable with a valve needle seating (28) to control fuel delivery from the injector, a surface associated with the valve needle (26) being exposed to fuel pressure within a control chamber (42), a first filling flow path (44) providing flow from the supply means (24) into the control chamber (42), and a control valve (48) for controlling fuel pressure within the control chamber (42). The control valve (48) comprises a valve housing (80) that defines, in part, a first valve chamber (104) and a second valve chamber (106), and a control valve member (60) slidable within a guide bore (86) of the valve housing (80). The injector further comprises a drain flow path (50) including a drain restriction (50a) and permitting flow from the control chamber (42) to the second valve chamber (106) when the control valve member (60) is in the second state, and a second filling flow path (47) permitting flow from the first valve chamber (104) into the control chamber (42) when the control valve member (60) is in the first state, wherein the second filling flow path (47) bypasses the drain restriction (50a). The drain flow path (50) and the second filling flow path (47) are formed within the valve housing (80).

    Abstract translation: 公开了一种用于内燃机燃料系统的燃油喷射器。 燃料喷射器包括用于高压燃料的供给装置(24,24a),包括可与阀针座(28)接合以控制从喷射器输送燃料的阀针(26)的喷嘴(25) 与阀针(26)相关联的表面暴露于控制室(42)内的燃料压力的第一填充流路(44),提供从供给装置(24)流入控制室(42)的流动;以及控制 用于控制所述控制室(42)内的燃料压力的阀(48)。 控制阀(48)包括部分限定第一阀室(104)和第二阀室(106)的阀壳体(80)和可在导向孔(86)内滑动的控制阀构件 )的阀壳体(80)。 当控制阀构件(60)处于第二状态时,喷射器还包括排水流路(50),该排水流路(50)包括排水限制(50a)并且允许从控制室(42)流到第二阀室(106) 以及当控制阀构件(60)处于第一状态时允许从第一阀室(104)流入控制室(42)的第二填充流路(47),其中第二填充流路(47)绕过 排水限制(50a)。 排水流路(50)和第二填充流路(47)形成在阀壳体(80)内。

    VALVE ASSEMBLY
    48.
    发明申请
    VALVE ASSEMBLY 审中-公开
    阀组件

    公开(公告)号:WO2012171950A1

    公开(公告)日:2012-12-20

    申请号:PCT/EP2012/061187

    申请日:2012-06-13

    CPC classification number: F16K3/262 F02M59/34 F02M63/0056 F16K3/26

    Abstract: A valve assembly for controlling the rate of flow of fluid between a valve inlet (18) and a valve outlet (22) comprises a valve housing (10), and a spool valve member (14) that is movable axially within a valve bore (12) provided in the valve housing (10) in an opening direction and a closing direction. The spool valve member (14) is provided with a blind bore (28), the open end of which communicates with the valve outlet, and at least one opening (32, 34; 40; 50, 52, 54, 56) into the blind bore, the at least one opening communicating, to a variable degree dependent on the axial position of the spool valve member (14) within the valve bore (12), with the valve inlet (18). The valve inlet (18) comprises a first boundary (24) and a second boundary (26), wherein the first boundary (24) acts as a control edge so that for axial positions of the spool valve member (14) in which the opening (30, 32; 40; 50, 52, 54, 56) does not overlap the control edge there is no flow into the outlet (22).A blind end (30) of the blind bore (28) is positioned, for all positions of the spool valve member (14) within the valve bore (12), beyond the second boundary (26) in the opening direction of the spool valve member (14).

    Abstract translation: 用于控制阀入口(18)和阀出口(22)之间的流体流速的阀组件包括阀壳体(10)和可在阀孔内轴向移动的滑阀构件(14) 12)设置在阀壳体(10)中的打开方向和闭合方向上。 滑阀构件(14)设置有盲孔(28),其开口端与阀出口连通,并且至少一个开口(32,34; 40; 50,52,54,56)进入 盲孔,所述至少一个开口连通到与所述阀入口(18)相关的取决于所述阀孔(12)内的所述滑阀构件(14)的轴向位置的可变程度。 阀入口(18)包括第一边界(24)和第二边界(26),其中第一边界(24)用作控制边缘,使得对于滑阀构件(14)的轴向位置,其中开口 (30,32; 40; 50,52,54,56)不与控制边缘重叠,没有流入出口(22)。盲孔(28)的盲端(30)位于所有 滑阀构件(14)在阀孔(12)内的滑阀构件(14)的打开方向上超过第二边界(26)的位置。

    INTERNAL COMBUSTION ENGINE WITH EXHAUST AFTER TREATMENT AND ITS METHOD OF OPERATION
    49.
    发明申请
    INTERNAL COMBUSTION ENGINE WITH EXHAUST AFTER TREATMENT AND ITS METHOD OF OPERATION 审中-公开
    内燃机与处理后的排气及其运行方法

    公开(公告)号:WO2012092974A1

    公开(公告)日:2012-07-12

    申请号:PCT/EP2011/050158

    申请日:2011-01-07

    CPC classification number: F01N9/00 F01N11/005 F02D41/024 Y02T10/26

    Abstract: A method of operating an internal combustion engine is proposed, the engine comprising an exhaust system with a DOC and a DPF and, downstream thereof a SCR catalyst. The ECU is configured to allow operation in at least one of a normal mode and a heat-up mode. A predicted temperature evolution of said second exhaust after treatment means is regularly determined based on a thermal model taking into account the thermal inertia of the exhaust system and having as input the current temperatures of the DOC/DPF and SCR. The predicted temperature evolution of SCR is indicative of the temperature that the SCR may reach during a simulated time period in case the operating mode. The engine operating mode is changed depending on the predicted temperature evolution.

    Abstract translation: 提出了一种操作内燃机的方法,该发动机包括具有DOC和DPF的排气系统,以及其下游的SCR催化剂。 ECU被配置为允许在正常模式和加热模式中的至少一个中的操作。 考虑到排气系统的热惯性并具有作为输入DOC / DPF和SCR的当前温度的热模型,规定地确定处理装置之后的所述第二排气的预测温度演变。 SCR的预测温度演变表示在操作模式的情况下SCR可能在模拟时间段内达到的温度。 发动机工作模式根据预测的温度变化而变化。

    METHOD OF DETERMINING INJECTION PARAMETERS FOR AN INJECTOR
    50.
    发明申请
    METHOD OF DETERMINING INJECTION PARAMETERS FOR AN INJECTOR 审中-公开
    确定注射器注射参数的方法

    公开(公告)号:WO2012066044A1

    公开(公告)日:2012-05-24

    申请号:PCT/EP2011/070267

    申请日:2011-11-16

    Abstract: A method of determining a minimum drive pulse (MDP) for an injector (7) in a fuel system (1) within an engine, the injector being associated with a fuel source (4), the method comprising: (a) measuring a first pressure in the fuel system; (b) sending (90) a drive pulse of a first length to the injector; (c) measuring a second pressure in the fuel system; (d) determining if an injection event has occurred by calculating the pressure difference between the first and second pressures and comparing to a threshold pressure difference; (e) repeating (a) to (d) with drive pulses of progressively increasing lengths until an injection event has occurred and setting the drive pulse length associated with the injection event as the MDP of the injector, wherein the fuel source is periodically pressurised.

    Abstract translation: 一种确定发动机内的燃料系统(1)中的喷射器(7)的最小驱动脉冲(MDP)的方法,所述喷射器与燃料源(4)相关联,所述方法包括:(a)测量第一 燃油系统压力; (b)向所述喷射器发送(90)第一长度的驱动脉冲; (c)测量燃料系统中的第二压力; (d)通过计算第一和第二压力之间的压差并与阈值压力差进行比较来确定是否已经发生喷射事件; (e)用逐渐增加的长度的驱动脉冲重复(a)至(d)直到发生喷射事件,并且将与喷射事件相关联的驱动脉冲长度设置为喷射器的MDP,其中燃料源被周期性地加压。

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