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    FUEL INJECTOR
    1.
    发明公开
    FUEL INJECTOR 审中-公开
    KRAFTSTOFFEINSPRITZVENTIL

    公开(公告)号：EP3143276A1

    公开(公告)日：2017-03-22

    申请号：EP15718845.9

    申请日：2015-04-21

    申请人： Delphi International Operations Luxembourg S.à r.l.

    发明人： LEGRAND, Philippe ,  OGE, Jean-Christophe

    IPC分类号： F02M61/12 ,  F02M61/20 ,  F02M47/02

    CPC分类号： F02M61/12 ,  F02M47/02 ,  F02M61/165 ,  F02M61/205 ,  F02M2200/27 ,  F02M2200/28

    摘要： A nozzle assembly of a fuel injector extends along a main axis and includes a nozzle body provided with an inner space divided in upstream chamber and downstream chamber and also with, a valve needle including a main elongated shaft slidably guided in said inner space and extending through-out both upstream and downstream chambers. The nozzle body and the valve needle cooperate to define throttle fluid communication means between upstream and downstream chambers inducing, in use, a pressure drop when fuel flows through. The nozzle assembly is further provided with a tubular sleeve arranged between the upstream chamber and the downstream chamber in abutment against a face of the body and being radially self-centred guided by a cylindrical face of the needle, the throttle means being arranged in said sleeve.

    摘要翻译： 燃料喷射器的喷嘴组件沿着主轴线延伸并且包括喷嘴主体，其设置有分隔在上游室和下游室中的内部空间，并且还具有阀针，所述阀针包括在所述内部空间中可滑动地引导并延伸通过的主细长轴 - 上下游室。 喷嘴主体和阀针配合以在上游和下游室之间限定节流流体连通装置，在燃料流过时在使用中引起压力降。 喷嘴组件还设置有管状套筒，其布置在上游室和下游室之间，与主体的表面邻接并且由针的圆柱形表面引导径向自对准，节流装置布置在所述套筒 。

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

    公开(公告)号：EP2674608B1

    公开(公告)日：2015-08-12

    申请号：EP12171811.8

    申请日：2012-06-13

    申请人： Delphi International Operations Luxembourg S.à r.l.

    发明人： Graham, Mark

    IPC分类号： F02M47/02

    CPC分类号： F02M63/0014 ,  F02M47/02 ,  F02M63/0015 ,  F02M63/0022 ,  F02M2547/001

    摘要： The present invention relates to a fuel injector (101) for use in delivering fuel to an internal combustion engine. The fuel injector (101) includes a nozzle (105) having a valve needle (107) which is movable with respect to a valve needle seat (117). The valve needle (107) 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) which is located in a piston guide (133). The valve needle (107) is movable relative to the needle sleeve (111) and the needle sleeve (111) is movable relative to the piston guide (133). The invention also relates to a method of operating a fuel injector (101); and a fuel injector control unit.

    KRAFTSTOFFEINSPRITZVENTIL FÜR BRENNKRAFTMASCHINEN
    4.
    发明公开
    KRAFTSTOFFEINSPRITZVENTIL FÜR BRENNKRAFTMASCHINEN 有权
    KRAFTSTOFFEINSPRITZVENTILFÜRBRENNKRAFTMASCHINEN

    公开(公告)号：EP2867517A1

    公开(公告)日：2015-05-06

    申请号：EP13723131.2

    申请日：2013-05-15

    申请人： Robert Bosch GmbH

    发明人： GRUENBERGER, Andreas ,  MAGEL, Hans-Christoph

    IPC分类号： F02M47/02 ,  F02M63/00 ,  F02M61/20

    CPC分类号： F02M47/02 ,  F02M47/027 ,  F02M61/20 ,  F02M63/0029 ,  F02M63/0042 ,  F02M63/0043 ,  F02M63/0075 ,  F02M2547/003

    摘要： The invention relates to a fuel injection valve comprising a housing (1) in which pressure is applied to a nozzle needle (8), in a control chamber (28), at least indirectly with a closing force in the direction of a valve seat (10). The pressure in the control chamber (28) can be adjusted using a control valve (40) as said control chamber (28) is able to be connected to a low pressure chamber (46) via an outlet restrictor (31) and be filled with fuel at high pressure via an inlet restrictor (30). A longitudinally-displaceable control piston (29) is arranged in the control chamber (28) and divides said chamber (28) into a first control sub-chamber (128) and a second control sub-chamber (228), the first control sub-chamber (128) being able to be connected to the low pressure chamber (46) by means of said outlet restrictor (31). A sealing surface (38) is formed on the control piston (29) and interacts with a sealing seat (39) in the control chamber (28) such that the inlet restrictor (30) is hydraulically disconnected from the second control sub-chamber (228) when the sealing surface (38) comes to rest against the sealing seat (39). Said first control sub-chamber (128) and second control sub-chamber (228) are constantly hydraulically interconnected by means of a restrictor connection (34).

    摘要翻译： 燃料喷射阀技术领域本发明涉及一种燃料喷射阀，其包括壳体（1），在壳体（1）中，压力施加到喷嘴针（8），控制室（28）中，至少间接地通过阀座方向上的闭合力 10）。 由于所述控制室（28）能够经由出口节流器（31）连接到低压室（46）并且被填充有控制阀（40），因此控制室（28）中的压力可以使用控制阀 通过入口节流器（30）以高压供应燃料。 在控制室（28）中布置有可纵向移动的控制活塞（29）并将所述室（28）分成第一控制子室（128）和第二控制子室（228），第一控制子室 - 腔室（128）能够通过所述出口限制器（31）连接到低压腔室（46）。 在控制活塞（29）上形成密封表面（38）并且与控制室（28）中的密封座（39）相互作用，使得入口限制器（30）与第二控制子室 当密封表面（38）抵靠密封座（39）时。 所述第一控制子室（128）和第二控制子室（228）通过限流器连接（34）恒定地液压地相互连接。

    Fuel injector
    5.
    发明公开
    Fuel injector 有权
    喷油器

    公开(公告)号：EP2674608A1

    公开(公告)日：2013-12-18

    申请号：EP12171811.8

    申请日：2012-06-13

    申请人： Delphi Technologies Holding S.à.r.l.

    发明人： Graham, Mark

    IPC分类号： F02M47/02

    CPC分类号： F02M63/0014 ,  F02M47/02 ,  F02M63/0015 ,  F02M63/0022 ,  F02M2547/001

    摘要： The present invention relates to a fuel injector (101) for use in delivering fuel to an internal combustion engine. The fuel injector (101) includes a nozzle (105) having a valve needle (107) which is movable with respect to a valve needle seat (117). The valve needle (107) 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) which is located in a piston guide (133). The valve needle (107) is movable relative to the needle sleeve (111) and the needle sleeve (111) is movable relative to the piston guide (133). The invention also relates to a method of operating a fuel injector (101); and a fuel injector control unit.

    摘要翻译： 本发明涉及用于向内燃机输送燃料的燃料喷射器（101）。 燃料喷射器（101）包括具有可相对于阀针座（117）移动的阀针（107）的喷嘴（105）。 阀针（107）在闭合位置和打开位置之间经过一定范围的运动，以控制通过至少一个喷嘴出口（109）的燃料输送。 阀针（107）与位于活塞导向件（133）中的针套（111）配合。 阀针（107）可相对于针套（111）移动，并且针套（111）可相对于活塞导向件（133）移动。 本发明还涉及一种操作燃料喷射器（101）的方法; 和燃料喷射器控制单元。

    Fuel injector
    7.
    发明公开
    Fuel injector 有权
    喷油器

    公开(公告)号：EP2604848A1

    公开(公告)日：2013-06-19

    申请号：EP11193480.8

    申请日：2011-12-14

    申请人： Delphi Technologies Holding S.à.r.l.

    发明人： Keeler, Nathan

    IPC分类号： F02M47/02 ,  F02M55/00 ,  F02M63/00 ,  F16K15/14

    CPC分类号： F02M61/10 ,  F02M47/02 ,  F02M47/027 ,  F02M51/061 ,  F02M53/043 ,  F02M55/002 ,  F02M57/02 ,  F02M63/0054 ,  F02M63/0078 ,  F02M2200/04 ,  F16J15/32 ,  Y10S239/04

    摘要： The present invention relates to a fuel injector (10) for use in a fuel system of an internal combustion engine. The fuel injector (10) has a supply passage (24) for high pressure fuel and an injection nozzle (25). The injection nozzle (25) includes a valve needle (26) which can engage with a valve needle seating (28) to control fuel delivery from the fuel injector (10). A first control valve (48) is provided for controlling fuel pressure within a control chamber (42) to control the valve needle (26). The fuel injector also includes a second control valve (78) for controlling fuel pressure within a low pressure drain (21). The invention also relates to a control valve (78) for controlling fuel pressure within a low pressure drain (21).

    摘要翻译： 本发明涉及一种用于内燃机的燃料系统的燃料喷射器（10）。 燃料喷射器（10）具有用于高压燃料的供应通道（24）和喷嘴（25）。 注射喷嘴（25）包括阀针（26），其可以与阀针座（28）接合以控制从燃料喷射器（10）的燃料输送。 提供第一控制阀（48），用于控制控制室（42）内的燃料压力以控制阀针（26）。 燃料喷射器还包括用于控制低压排放口（21）内的燃料压力的第二控制阀（78）。 本发明还涉及一种用于控制低压排放口（21）内的燃料压力的控制阀（78）。

    Fuel injection device
    9.
    发明公开
    Fuel injection device 有权
    燃油喷射装置

    公开(公告)号：EP2476893A1

    公开(公告)日：2012-07-18

    申请号：EP12163982.7

    申请日：2010-06-01

    申请人： DENSO CORPORATION

    发明人： Adachi, Naofumi ,  Matsumoto, Shuichi ,  Suzuki, Keisuke ,  Tsuda, Tomoyuki ,  Kobane, Yoichi ,  Okuno, Yoshinori

    IPC分类号： F02M47/02 ,  F02M61/16

    CPC分类号： F02M47/02 ,  F02M47/027 ,  F02M61/16

    摘要： The invention has an object for improving response of a fuel injection device . A flow-in recessed portion (72a) and a flow-out recessed portion (74a) are formed at a press-contacting surface of a floating plate (70), which is movably accommodated in a pressure control chamber (53). A flow-in port (52b) and a flow-out port (54b) are formed at a pressure control surface (53b) of a valve body (46). The flow-in port (52b) is opened to the flow-in recessed portion (72a), while the flow-out port (54b) is opened to the flow-out recessed portion (74a). When the floating plate (70) is moved upwardly and the press-contacting surface is brought into contact with the pressure control surface (53b), the flow-in port (52b) is surely closed.

    摘要翻译： 本发明的目的在于提高燃料喷射装置的响应性。 流入凹部72a和流出凹部74a形成在浮动板70的压力接触表面处，该浮动板70可移动地容纳在压力控制室53中。 流入口（52b）和流出口（54b）形成在阀体（46）的压力控制表面（53b）处。 流入口52b向流入凹部72a开口，流出口54b向流出凹部74a开口。 当浮动板70向上移动并且压力接触表面与压力控制表面53b接触时，流入口52b确实关闭。