INJECTOR FOR A FUEL INJECTION SYSTEM
    1.
    发明申请
    INJECTOR FOR A FUEL INJECTION SYSTEM 审中-公开
    燃油喷射系统注射器

    公开(公告)号:US20090230220A1

    公开(公告)日:2009-09-17

    申请号:US12306054

    申请日:2007-06-04

    IPC分类号: F02M51/00

    摘要: A leak-free injector is proposed, the closing force of which is increased by a closing piston. An injector has a nozzle needle and a control valve, the nozzle needle being guided in an injector housing and cooperating with a nozzle needle seat of the injector housing. A high-pressure chamber is present between the control valve and the nozzle needle seat, and the closing piston is provided on the nozzle needle. The closing piston subdivides the high-pressure chamber into a first region and a second region. The two regions of the high-pressure chamber communicate hydraulically via a closing throttle restriction.

    摘要翻译: 提出了一种无泄漏的注射器,其关闭力由关闭活塞增加。 喷射器具有喷嘴针和控制阀,喷嘴针在注射器壳体中被引导并与喷射器壳体的喷嘴针座配合。 在控制阀和喷嘴针座之间存在高压室,并且关闭活塞设置在喷嘴针上。 关闭活塞将高压室细分为第一区域和第二区域。 高压室的两个区域通过关闭节气门限制液压地连通。

    Fuel injector
    2.
    发明授权
    Fuel injector 有权
    喷油器

    公开(公告)号:US08864054B2

    公开(公告)日:2014-10-21

    申请号:US13055599

    申请日:2009-05-27

    摘要: The invention relates to a fuel injector and, in particular, to a common-rail injector for injecting fuel into a combustion chamber of an internal combustion engine with a multi-part injection valve element, which can be adjusted between an open position and a closed position. A first part and a second part of the injection valve element are coupled to one another via a hydraulic coupler, which is bounded radially by a first guide for the first part and by a second guide for the second part. According to the invention, at least some sections of the first and the second guide are surrounded at their outer radii by fuel under high pressure, and the pressure realized in the hydraulic coupler is lower than the pressure radially outside the guides.

    摘要翻译: 本发明涉及一种燃料喷射器,特别涉及一种共轨喷射器,用于将燃料喷射到具有多部分喷射阀元件的内燃机的燃烧室中,所述多部分喷射阀元件可以在打开位置和关闭状态之间调节 位置。 喷射阀元件的第一部分和第二部分经由液压耦合器彼此联接,液压耦合器由第一部分的第一引导件和第二部分的第二引导件径向限制。 根据本发明,第一和第二引导件的至少一些部分在其外半径处被高压燃料包围,并且液压联轴器中实现的压力低于引导件的径向外侧的压力。

    Fuel injector
    3.
    发明授权
    Fuel injector 有权
    喷油器

    公开(公告)号:US08302888B2

    公开(公告)日:2012-11-06

    申请号:US12686606

    申请日:2010-01-13

    IPC分类号: F02M61/10 F02M51/00

    摘要: The invention relates to a fuel injector, in particular a common rail injector, for injecting fuel into a combustion chamber of an internal combustion engine. The fuel injector has a multi-part injection valve element, which is adjustable between a closing position and an opening position and includes a first part and at least one second part that is adjustable relative to the first part. The first and second parts are coupled to one another via a hydraulic coupler volume. According to the invention, it is provided that the first part is guided in the second part, or the second part is guided in the first part, and that the coupler volume communicates with an injector volume via at least one throttle arrangement. The throttle arrangement is embodied such that the volumetric through flow increases only disproportionately little with an increasing pressure difference between the coupler volume and the injector volume.

    摘要翻译: 本发明涉及一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射器,特别是共轨喷射器。 燃料喷射器具有多部分喷射阀元件,其可在关闭位置和打开位置之间调节,并且包括可相对于第一部件调节的第一部分和至少一个第二部分。 第一和第二部分通过液压耦合器体积相互耦合。 根据本发明,提供了第一部分在第二部分中被引导,或者第二部分在第一部分中被引导,并且联接器体积经由至少一个节流装置与喷射器体积连通。 节流装置被实施为使得体积通过流量随着耦合器体积和注射器体积之间的增加的压力差而仅增加很小。

    METHOD FOR PRODUCING A FUEL INJECTION VALVE, AND FUEL INJECTION VALVE

    公开(公告)号:US20120205470A1

    公开(公告)日:2012-08-16

    申请号:US13503686

    申请日:2010-10-01

    IPC分类号: F02M47/02 F02M61/10 B23P17/00

    摘要: The invention relates to a method for producing a fuel injection valve (10; 10a; 60; 60a), in which a valve needle (40; 40a; 62; 62a) which closes at least one fuel outlet opening (49) is inserted into an injector housing (11), wherein that end of the valve needle (40; 40a; 62; 62a) which lies opposite the at least one fuel outlet opening (49) is guided in a valve element (32) which has a pressurized control chamber (37) which is filled with fuel, wherein the control chamber (37) can be closed on the side which faces away from the valve needle (40; 40a; 62; 62a) by a closing element (23) which forms a passage during opening and is connected at least indirectly to a fuel return line (5) which is under low pressure, wherein fuel volume which is present in the control chamber (37) flows away through the passage after opening of the control chamber (37) by means of the closing element (23), wherein the valve needle (40; 40a; 62; 62a) moves in the direction of the closing element (23), wherein the at least one fuel outlet opening (49) is opened, and wherein a delay time (t) occurs between the opening of the control chamber (37) and the opening of the at least one fuel outlet opening (49) on account of the magnitude of the volume of the control chamber (37) and on account of the rigidity of the valve needle (40; 40a; 62; 62a), which rigidity is caused by the modulus of elasticity, the diameter (D) and the length (L) of the valve needle (40; 40a; 62; 62a). There is provision according to the invention for at least the volume of the control chamber (37) to be adapted in order to achieve identical delay times (t) in fuel injection valves (10; 10a; 60; 60a) having injector housings (11) of different length and valve needles (40; 40a; 62; 62a) of different length, in such a way that the volume of the control chamber (37) is reduced in order to shorten the delay time (t) and the volume of the control chamber (37) is increased in order to lengthen the delay time (t).

    FUEL INJECTOR
    5.
    发明申请
    FUEL INJECTOR 有权
    喷油器

    公开(公告)号:US20110139906A1

    公开(公告)日:2011-06-16

    申请号:US13055599

    申请日:2009-05-27

    IPC分类号: F02M61/04

    摘要: The invention relates to a fuel injector and, in particular, to a common-rail injector for injecting fuel into a combustion chamber of an internal combustion engine with a multi-part injection valve element, which can be adjusted between an open position and a closed position. A first part and a second part of the injection valve element are coupled to one another via a hydraulic coupler, which is bounded radially by a first guide for the first part and by a second guide for the second part. According to the invention, at least some sections of the first and the second guide are surrounded at their outer radii by fuel under high pressure, and the pressure realized in the hydraulic coupler is lower than the pressure radially outside the guides.

    摘要翻译: 本发明涉及一种燃料喷射器,特别涉及一种共轨喷射器,用于将燃料喷射到具有多部分喷射阀元件的内燃机的燃烧室中,所述多部分喷射阀元件可以在打开位置和关闭状态之间调节 位置。 喷射阀元件的第一部分和第二部分经由液压耦合器彼此联接,液压耦合器由第一部分的第一引导件和第二部分的第二引导件径向限制。 根据本发明,第一和第二引导件的至少一些部分在其外半径处被高压燃料包围,并且液压联轴器中实现的压力低于引导件的径向外侧的压力。

    THROTTLE ON A VALVE NEEDLE OF A FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
    6.
    发明申请
    THROTTLE ON A VALVE NEEDLE OF A FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES 审中-公开
    用于内燃机的燃油喷射阀的阀针上的节流阀

    公开(公告)号:US20100193611A1

    公开(公告)日:2010-08-05

    申请号:US12668936

    申请日:2008-06-13

    IPC分类号: F02M61/10

    摘要: The invention relates to a fuel injection valve for internal combustion engines, having a valve body, in which a pressure chamber is configured. A valve needle is disposed in the pressure chamber in a longitudinally displaceable manner. The valve body has a valve seat which interacts with a sealing surface configured on the valve needle. The valve seat delimits the pressure chamber, thus enabling or interrupting a fuel flow to at least one injection opening by the interaction of the valve needle with the valve seat. To this end, the fuel flow to the injection openings occurs between the valve needle and the wall of the pressure chamber, through a sharp-edged gap throttle which is formed between the valve needle and the wall of the pressure chamber.

    摘要翻译: 本发明涉及一种用于内燃机的燃料喷射阀,其具有构造有压力室的阀体。 阀针以可纵向移位的方式设置在压力室中。 阀体具有与配置在阀针上的密封面相互作用的阀座。 阀座限定压力室,从而通过阀针与阀座的相互作用使燃料流动到至少一个喷射口。 为此,通过形成在阀针和压力室的壁之间的尖锐的间隙节流阀,在阀针和压力室的壁之间发生到注射开口的燃料流。

    Device and method for metering a liquid into the exhaust tract of an internal combustion engine
    7.
    发明授权
    Device and method for metering a liquid into the exhaust tract of an internal combustion engine 有权
    将液体计量到内燃机的排气道中的装置和方法

    公开(公告)号:US09556768B2

    公开(公告)日:2017-01-31

    申请号:US13702887

    申请日:2011-05-19

    申请人: Matthias Burger

    发明人: Matthias Burger

    摘要: The invention relates to a device and method for metering a liquid, in particular a fuel, into an exhaust gas tract of an internal combustion engine, wherein the device comprises at least one injection valve that can be closed by a closing member and that has cooling circuit for regulating the temperature in the injection valve, and wherein a throttle element is connected upstream of the injection valve to control, by closed loop or open loop, the quantity of a volume flow of the liquid through the injection valve, in particular through the cooling circuit of the injection valve, wherein the injection valve opens when the throttle element de-throttles the volume flow of the liquid to the injection valve.

    摘要翻译: 本发明涉及一种用于将液体特别是燃料计量到内燃机的排气通道中的装置和方法,其中所述装置包括至少一个可由关闭构件封闭并具有冷却的喷射阀 用于调节喷射阀中的温度的电路,并且其中节流元件连接在喷射阀的上游,以通过闭环或开环控制液体通过喷射阀的体积流量的量,特别是通过 所述喷射阀的冷却回路,其中当所述节流元件解除所述液体到所述喷射阀的体积流量时,所述喷射阀打开。

    METHOD FOR METERING A REAGENT INTO AN EXHAUST GAS DUCT AND DEVICE FOR CARRYING OUT THE METHOD
    8.
    发明申请
    METHOD FOR METERING A REAGENT INTO AN EXHAUST GAS DUCT AND DEVICE FOR CARRYING OUT THE METHOD 有权
    将试剂置于排气管道中的方法和用于实施该方法的装置

    公开(公告)号:US20120017571A1

    公开(公告)日:2012-01-26

    申请号:US13181640

    申请日:2011-07-13

    IPC分类号: F01N3/00

    摘要: The invention proposes a method for metering a reagent, in which the reagent is sprayed into a spray tube (12) via an electrically activated metering valve (24), and is mixed in the spray tube (12) with compressed air, and in which the reagent mixed with compressed air is introduced by means of the spray tube (12) into an exhaust gas duct (10) and is atomized, and a device for carrying out the method. The procedure according to the invention is distinguished in that the duration of the metering valve activation signal (34) is corrected depending on the differential pressure between the hydraulic pressure (p_Rea_hyd) of the reagent in the metering valve (24) and the pneumatic pressure (p_D_pneu) in the spray tube (12). The procedure according to the invention permits a high degree of accuracy in the metering of the reagent.

    摘要翻译: 本发明提出了一种计量试剂的方法,其中试剂通过电激活的计量阀(24)喷射到喷射管(12)中,并在喷射管(12)中与压缩空气混合,其中 与压缩空气混合的试剂通过喷射管(12)引入排气管道(10)并进行雾化,以及用于实施该方法的装置。 根据本发明的过程的区别在于,计量阀启动信号(34)的持续时间根据计量阀(24)中的试剂的液压(p_Rea_hyd)与气动压力( p_D_pneu)在喷射管(12)中。 根据本发明的方法允许在试剂的计量中高度准确。