Servo valve for controlling an internal combustion engine injection
    22.
    发明授权
    Servo valve for controlling an internal combustion engine injection 有权
    用于控制内燃机喷射的伺服阀

    公开(公告)号:US07527036B2

    公开(公告)日:2009-05-05

    申请号:US11741474

    申请日:2007-04-27

    IPC分类号: F02M37/04

    摘要: A control servo valve is housed inside the casing of an internal combustion engine fuel injector, and has an actuator, a control chamber communicating with a fuel inlet and with a fuel outlet passage, and a shutter movable along an axis by the actuator between a closed position and an open position to close and open the outlet passage respectively; the servo valve also has a fixed axial rod interposed between the actuator and the control chamber; the outlet passage comes out through an outer lateral surface of the axial rod; and the shutter is defined by a sleeve which slides axially on the outer lateral surface, and, in the closed position, closes the outlet passage so as to be subjected to a zero axial resultant force by the pressure of the fuel.

    摘要翻译: 控制伺服阀被容纳在内燃机燃料喷射器的壳体内,并且具有致动器,与燃料入口连通的控制室和燃料出口通道,以及通过致动器沿着轴可在闭合 位置和打开位置分别关闭和打开出口通道; 伺服阀还具有夹在致动器和控制室之间的固定轴向杆; 出口通道通过轴杆的外侧表面出来; 并且挡板由在外侧表面上轴向滑动的套筒限定,并且在关闭位置中封闭出口通道,以便通过燃料的压力经受零轴向合力。

    Servo valve for controlling an internal combustion engine fuel injector
    23.
    发明授权
    Servo valve for controlling an internal combustion engine fuel injector 有权
    用于控制内燃机燃料喷射器的伺服阀

    公开(公告)号:US07469843B2

    公开(公告)日:2008-12-30

    申请号:US11112812

    申请日:2005-04-21

    IPC分类号: B05B1/08

    摘要: A control servo valve (8) is housed inside the casing (2) of an internal combustion engine fuel injector (1), and has a piezoelectric actuator (40), and a control chamber (13) having a fuel outlet passage (21); the outlet passage (21) comes out inside an annular chamber (34) defined by a fixed tubular portion (25) and by a shutter (32), which engages the tubular portion (25) in substantially fluidtight manner and is slid axially by the piezoelectric actuator (40) from a closed position, in which it closes the annular chamber (34) and is subjected to a zero axial resultant force by the fuel pressure, to an open position, in which the outlet passage (21) communicates with a discharge conduit.

    摘要翻译: 控制伺服阀(8)容纳在内燃机燃料喷射器(1)的壳体(2)内,并具有压电致动器(40)和具有燃料出口通路(21)的控制室(13) ; 出口通道(21)从由固定管状部分(25)和快门(32)限定的环形室(34)内部出来,活门(32)以基本上流体密封的方式与管状部分(25)接合并且通过 压电致动器(40)从关闭位置闭合,其中闭合环形室(34)并经受燃料压力的零轴向合力到打开位置,在该打开位置,出口通道(21) 排放管道。

    FUEL INJECTOR FOR AN INTERNAL-COMBUSTION ENGINE
    24.
    发明申请
    FUEL INJECTOR FOR AN INTERNAL-COMBUSTION ENGINE 有权
    燃油喷射器内燃机

    公开(公告)号:US20070240682A1

    公开(公告)日:2007-10-18

    申请号:US11616695

    申请日:2006-12-27

    IPC分类号: F02M61/04

    CPC分类号: F02M61/20 F02M47/027

    摘要: The fuel injector comprises a hollow casing, fixed on which is a nozzle having a nebulizer for the fuel under pressure, a needle axially mobile for opening and closing the nebulizer by means of a first end thereof, and a control rod, substantially coaxial with the needle and in direct engagement therewith. The needle is normally pushed into a closing position of the nozzle by the fuel under pressure acting on the rod, aided by a compression spring, which acts on the needle through a sleeve that is in axial engagement with a portion of the rod. The sleeve further comprises a surface designed to engage at the front and directly one end of the needle. The spring engages another surface of the sleeve so as to transmit its action directly onto the needle.

    摘要翻译: 燃料喷射器包括中空壳体,固定在其上,喷嘴具有用于压力下的燃料的喷雾器,可轴向移动的针头,用于通过其第一端打开和关闭雾化器;以及控制杆,其基本上与 针并与其直接接合。 针通常被作用在杆上的压力下的燃料压入喷嘴的关闭位置,由压缩弹簧辅助,压缩弹簧通过与棒的一部分轴向接合的套筒作用在针上。 套筒还包括设计成接合在针的前部和直接一端的表面。 弹簧接合套筒的另一个表面,以便将其作用直接传递到针上。

    Fuel injector for an internal-combustion engine
    25.
    发明授权
    Fuel injector for an internal-combustion engine 有权
    用于内燃机的燃油喷射器

    公开(公告)号:US07255289B2

    公开(公告)日:2007-08-14

    申请号:US11112786

    申请日:2005-04-21

    摘要: A fuel injector (1) for an internal-combustion engine has a shell (2) provided with two opposite terminal portions; the first terminal portion (4) has an inlet (7) for supply of the fuel and is generally designed to extend outside the engine, whilst the second terminal portion (5) has a nozzle (9) communicating with said inlet (7), is designed to be housed in the engine and has, in the radial direction, dimensions smaller than those of the first portion (4); the injector (1) further has an actuator (16) and a servo valve (15) housed in the first terminal portion (4); the servo valve (15) is provided with an open/close element (32), which can slide axially, under the action of the actuator (16) and substantially in a fluid-tight way, in a seat (27) and is subjected to an axial resultant of pressure of the fuel that is substantially zero; the fuel inlet (7) is made laterally in an intermediate axial position between the actuator (16) and the nozzle (9).

    摘要翻译: 一种用于内燃机的燃料喷射器(1)具有设置有两个相对端子部分的壳体(2) 第一端子部分(4)具有用于供应燃料的入口(7),并且通常设计成在发动机外部延伸,而第二端子部分(5)具有与所述入口(7)连通的喷嘴(9) 被设计成容纳在发动机中,并且在径向上具有比第一部分(4)的尺寸更小的尺寸; 喷射器(1)还具有容纳在第一端子部分(4)中的致动器(16)和伺服阀(15)。 所述伺服阀(15)设置有打开/关闭元件(32),所述打开/关闭元件(32)可在所述致动器(16)的作用下在所述座(27)中基本上以流体密封的方式轴向滑动并且被施加 到基本上为零的燃料的压力的轴向结果; 燃料入口(7)在致动器(16)和喷嘴(9)之间的中间轴向位置处横向制成。

    Method of producing a fuel injector, and relative fuel injector
    26.
    发明授权
    Method of producing a fuel injector, and relative fuel injector 失效
    燃料喷射器的制造方法以及相对燃料喷射器

    公开(公告)号:US06824082B2

    公开(公告)日:2004-11-30

    申请号:US10034631

    申请日:2001-12-28

    IPC分类号: F02M3900

    摘要: A fuel injector has an injector body extending along a given axis; a tubular valve body housed inside a hole in the injector body and coaxial with the injector body; and an annular chamber defined by the injector body and the valve body. The method of producing the injector includes connecting the valve body to the injector body, and fixing the valve body in a given position along the axis with respect to the injector body by means of a driving operation to interference fit the valve body inside the hole in the injector body.

    摘要翻译: 燃料喷射器具有沿给定轴线延伸的喷射器主体; 管状阀体,容纳在喷射器主体的孔内并与喷射器主体同轴; 以及由喷射器主体和阀体限定的环形室。 制造喷射器的方法包括将阀体连接到喷射器主体,并且通过驱动操作将阀体相对于喷射器主体沿着轴线固定在给定位置,以将阀体过盈配合在孔内部 注射器体。

    Fuel injector with adjustable-metering servo valve for an internal-combustion engine
    27.
    发明授权
    Fuel injector with adjustable-metering servo valve for an internal-combustion engine 有权
    燃油喷射器,内置可调式计量伺服阀

    公开(公告)号:US07552909B2

    公开(公告)日:2009-06-30

    申请号:US11784946

    申请日:2007-04-10

    IPC分类号: F16K31/02

    摘要: An injector with an adjustable-metering servo valve is provided. The injector has a shutter actuated by an armature of an electromagnet. The armature is mobile for an opening stroke defined by a surface of the core of the electromagnet, which is fixed in the casing by a ring nut and a hollow support of the core. The hollow support has a first contact surface that acts on a flange of the core. Set between the surface and a shoulder of the casing is a shim. An annular projection, having a second contact surface, is set between the surface and a shoulder of the casing. The second contact surface is contained at least in part in the area corresponding to the first contact surface so that the stroke of the armature is adjusted by plastic deformation of the shim or of the surface of the core.

    摘要翻译: 提供一个带有可调计量伺服阀的进样器。 喷射器具有由电磁体的电枢驱动的快门。 电枢可移动,用于由电磁体的芯的表面限定的开口行程,电动机的芯体通过环形螺母和芯的中空支撑件固定在壳体中。 中空支撑件具有作用在芯的凸缘上的第一接触表面。 套管的表面和肩膀之间是垫片。 具有第二接触表面的环形突起被设置在壳体的表面和肩部之间。 第二接触表面至少部分地包含在对应于第一接触表面的区域中,使得通过垫片或芯的表面的塑性变形来调节电枢的行程。

    Fuel injector for an internal-combustion engine
    28.
    发明授权
    Fuel injector for an internal-combustion engine 有权
    用于内燃机的燃油喷射器

    公开(公告)号:US07527210B2

    公开(公告)日:2009-05-05

    申请号:US11616695

    申请日:2006-12-27

    IPC分类号: F02M41/16 B05B1/30

    CPC分类号: F02M61/20 F02M47/027

    摘要: The fuel injector comprises a hollow casing, fixed on which is a nozzle having a nebulizer for the fuel under pressure, a needle axially mobile for opening and closing the nebulizer by means of a first end thereof, and a control rod, substantially coaxial with the needle and in direct engagement therewith. The needle is normally pushed into a closing position of the nozzle by the fuel under pressure acting on the rod, aided by a compression spring, which acts on the needle through a sleeve that is in axial engagement with a portion of the rod. The sleeve further comprises a surface designed to engage at the front and directly one end of the needle. The spring engages another surface of the sleeve so as to transmit its action directly onto the needle.

    摘要翻译: 燃料喷射器包括中空壳体,固定在其上,喷嘴具有用于压力下的燃料的喷雾器,可轴向移动的针头,用于通过其第一端打开和关闭雾化器;以及控制杆,其基本上与 针并与其直接接合。 针通常被作用在杆上的压力下的燃料压入喷嘴的关闭位置,由压缩弹簧辅助,压缩弹簧通过与棒的一部分轴向接合的套筒作用在针上。 套筒还包括设计成接合在针的前部和直接一端的表面。 弹簧接合套筒的另一个表面,以便将其作用直接传递到针上。

    System for assembling an internal combustion engine fuel injector
    30.
    发明授权
    System for assembling an internal combustion engine fuel injector 失效
    用于组装内燃机燃料喷射器的系统

    公开(公告)号:US06869033B2

    公开(公告)日:2005-03-22

    申请号:US10034630

    申请日:2001-12-28

    IPC分类号: F02M47/02 F02M61/16 B05B1/30

    CPC分类号: F02M61/168 F02M47/027

    摘要: The injector has a hollow body supporting an ordinary injection nozzle and a metering valve for metering the fuel to be injected; and a support defined by a sleeve and by an end wall. The sleeve houses an electromagnet controlling the metering valve, and is fitted to the hollow body. For which purpose, there is provided a leaf spring having a ring-shaped portion engaging the end wall of the support; and a number of elastic blades, each terminating with a hook-shaped appendix which engages a corresponding retaining element on the hollow body.

    摘要翻译: 注射器具有支撑普通注射喷嘴的中空体和用于计量要喷射的燃料的计量阀; 以及由套筒和端壁限定的支撑件。 套管装有控制计量阀的电磁铁,并安装在中空体上。 为此,提供了具有与支撑件的端壁接合的环形部分的板簧; 以及多个弹性叶片,每个弹性叶片终止于与中空本体上相应的保持元件接合的钩形附件。