Fuel injector
    1.
    发明申请
    Fuel injector 审中-公开
    喷油器

    公开(公告)号:US20090200402A1

    公开(公告)日:2009-08-13

    申请号:US11664858

    申请日:2005-09-20

    IPC分类号: F02M61/18

    CPC分类号: F02M61/1853

    摘要: The fuel injector including an orifice plate which is provided with a multitude of outlet openings and situated downstream from a valve-seat body having a fixed valve seat. Directly upstream from the outlet openings is an inflow opening having an annular inflow cavity. The valve-seat body covers the inflow cavity in such a way that the downstream outlet openings of the orifice plate are covered. The outlet openings each have an inflow region whose diameter D1 is considerably larger than the diameter D2 of a region that abuts at a sharp angle directly downstream therefrom, which forms the narrowest cross section of the outlet opening and from where the outlet opening widens in the flow direction to a diameter D3 in a trumpet-shaped manner. The fuel injector may be particularly suitable for use in fuel injection systems of mixture-compressing ignition engines having externally supplied ignition.

    摘要翻译: 燃料喷射器包括孔板,其设有多个出口,并位于具有固定阀座的阀座主体的下游。 从出口开口直接上游是具有环形流入腔的流入开口。 阀座体以使得孔板的下游出口开口被覆盖的方式覆盖流入腔。 出口开口各自具有流入区域,其直径D1远大于直接在其下游以尖锐角度邻接的区域的直径D2,其形成出口开口的最窄横截面,并且出口开口在 以喇叭形的方式流向直径D3。 燃料喷射器可以特别适合用于混合压缩点火发动机的燃料喷射系统,该点火发动机具有外部提供的点火。

    Fuel Injector
    3.
    发明申请
    Fuel Injector 审中-公开
    喷油器

    公开(公告)号:US20090206181A1

    公开(公告)日:2009-08-20

    申请号:US11886833

    申请日:2006-02-14

    IPC分类号: F02M61/04 B05B1/30

    摘要: A fuel injector includes an orifice plate situated downstream from a valve-seat body having a fixed valve seat, the orifice plate having at least one outlet opening. Provided directly upstream from the outlet openings is an inflow opening having an annular inflow cavity. The valve-seat body covers the inflow cavity in such a way that the downstream outlet openings of the orifice plate are covered. The inflow cavity directly upstream from the at least one outlet opening is configured such that the flow approaches the at least one outlet opening largely at a right angle to the longitudinal extension of the outlet opening. With regard to the cross section, the at least one outlet openings has a polygonal form, in particular one that encloses at least one triangle, or it has a meander shape with a plurality of curves in the outer contour. The fuel injector may be particularly suitable for use in fuel injection systems of the mixture-compressing internal combustion engines having external ignition.

    摘要翻译: 燃料喷射器包括位于具有固定阀座的阀座主体下游的孔板,孔板具有至少一个出口。 从出口开口直接上游设置有具有环形流入腔的流入开口。 阀座体以使得孔板的下游出口开口被覆盖的方式覆盖流入腔。 从至少一个出口开口直接上游的流入腔构造成使得流体大致以与出口开口的纵向延伸成直角的方式接近至少一个出口。 关于横截面,至少一个出口开口具有多边形形状,特别是包围至少一个三角形的出口,或者具有在外轮廓中具有多个曲线的曲折形状。 燃料喷射器可以特别适用于具有外部点火的混合物压缩内燃机的燃料喷射系统。

    Fuel Injector
    4.
    发明申请
    Fuel Injector 审中-公开
    喷油器

    公开(公告)号:US20090032623A1

    公开(公告)日:2009-02-05

    申请号:US11664633

    申请日:2005-09-20

    IPC分类号: B05B1/30

    CPC分类号: F02M61/1853

    摘要: The fuel injector includes an orifice plate being situated downstream from a valve-seat body having a fixed valve seat, the orifice plate having at least one outlet opening. Provided directly upstream from the outlet openings is an inflow opening having an annular inflow cavity. The valve-seat body covers the inflow cavity in such a way that the downstream outlet openings of the orifice plate are covered. A boundary surface of the valve-seat body lying opposite the orifice plate is designed such that, beginning at an exit opening, the height of the inflow opening decreases continuously in a first section up to the at least one outlet opening, while the height of the inflow opening in a second, radially outer section remains largely constant. The fuel injector is particularly suitable for use in fuel injection systems of the mixture-compressing internal combustion engines having external ignition.

    摘要翻译: 燃料喷射器包括孔板,其位于具有固定阀座的阀座主体的下游,孔板具有至少一个出口。 从出口开口直接上游设置有具有环形流入腔的流入开口。 阀座体以使得孔板的下游出口开口被覆盖的方式覆盖流入腔。 所述阀座体的与所述孔板相对的边界面被设计为使得从出口开始,所述流入口的高度在第一部分中持续降低,直到所述至少一个出口开口的高度, 在第二径向外侧部分中的流入开口保持大体恒定。 燃料喷射器特别适用于具有外部点火的混合物压缩内燃机的燃料喷射系统。

    Fuel injector
    5.
    发明授权
    Fuel injector 失效
    喷油器

    公开(公告)号:US06983900B2

    公开(公告)日:2006-01-10

    申请号:US10168356

    申请日:2001-10-19

    IPC分类号: B05B1/30 F02M59/00 F02M47/02

    摘要: A fuel injector for fuel injection systems of internal combustion engines includes a valve needle and a valve closing body, which is operationally linked to it and cooperates with a valve seat face situated in a valve seat body to form a sealing seat. Upstream from the sealing seat there is at least one swirl channel, which has a tangential component relative to the longitudinal axis of the fuel injector. An axial channel, which is formed between the valve closing body and the guide recess of the valve seat body, has an axial component relative to the longitudinal axis of the fuel injector, the axial channel being formed between the guide recess and at least one flattened area on the valve needle.

    摘要翻译: 用于内燃机燃料喷射系统的燃料喷射器包括阀针和阀关闭体,该阀针和阀关闭体在操作上与其连接并与位于阀座体中的阀座面协作以形成密封座。 从密封座上游至少有一个涡流通道,其相对于燃料喷射器的纵向轴线具有切向分量。 形成在阀关闭体和阀座主体的引导凹部之间的轴向通道具有相对于燃料喷射器的纵向轴线的轴向分量,该轴向通道形成在导向凹槽与至少一个平坦的 阀针上的区域。

    Fuel injection valve
    6.
    发明授权
    Fuel injection valve 失效
    燃油喷射阀

    公开(公告)号:US06869032B2

    公开(公告)日:2005-03-22

    申请号:US10297155

    申请日:2002-03-27

    摘要: A fuel injector, in particular for a high-pressure injector for direct injection of fuel into a combustion chamber of an internal combustion engine, has compression of a fuel/air mixture with spark ignition. On the downstream end of the valve a valve seat element is provided, to which a perforated disk acting as a flow restrictor is connected downstream. A swirl element is situated upstream from the valve seat which imparts an atomization-promoting rotational motion to the fuel to be injected. In the valve seat element downstream from the valve seat, an elongated outlet orifice is provided which opens directly into an orifice in the perforated disk attached to the valve seat element. The width of the outlet orifice is greater than the width of the orifice in the perforated disk, at least at its narrowest location, so that it is possible to adjust the steady-state flow rate of the valve at the orifice.

    摘要翻译: 燃料喷射器,特别是用于将燃料直接喷射到内燃机的燃烧室中的高压喷射器,具有用火花点火的燃料/空气混合物的压缩。 在阀的下游端设置有阀座元件,作为流量限制器的多孔盘连接到下游。 涡流元件位于阀座的上游,其向喷射的燃料施加雾化促进旋转运动。 在阀座下游的阀座元件中,设置有细长的出口孔,其直接打开在连接到阀座元件的多孔盘中的孔中。 出口孔的宽度至少在其最窄的位置处大于多孔板中孔口的宽度,使得可以调节阀在孔处的稳态流速。

    Fuel injection valve
    8.
    发明授权
    Fuel injection valve 失效
    燃油喷射阀

    公开(公告)号:US07032845B2

    公开(公告)日:2006-04-25

    申请号:US10475968

    申请日:2002-12-23

    IPC分类号: F02M61/16

    摘要: A fuel injector for the direct injection of fuel into a combustion chamber of an internal combustion engine is provided, which injector includes a valve needle having at its spray-discharge end a valve-closure member, which cooperates with a valve-seat surface formed on a valve-seat member to form a sealing seat. At least one swirl channel is provided in a section of the valve-seat member surrounding the valve needle, and at least one spray-discharge orifice is provided in the valve-seat member. The at least one swirl channel, when viewed through the swirl channel in the flow direction of the fuel, is inclined counter to the spray-discharge direction relative to the center axis of the valve needle.

    摘要翻译: 提供了一种用于将燃料直接喷射到内燃机的燃烧室中的燃料喷射器,该喷射器包括一个阀针,喷嘴在其喷射排放端具有阀关闭件,该阀关闭件与阀座表面形成 阀座构件以形成密封座。 在围绕阀针的阀座构件的一部分中设置有至少一个旋流通道,并且在阀座构件中设置至少一个喷射排出口。 当沿着燃料的流动方向通过涡流通道观察时,至少一个涡流通道相对于阀针的中心轴线相对于喷射排出方向倾斜。

    Fuel injection valve and a method for manufacturing exit outlets on the valve
    9.
    发明授权
    Fuel injection valve and a method for manufacturing exit outlets on the valve 失效
    燃油喷射阀和阀门出口出口的制造方法

    公开(公告)号:US06826833B1

    公开(公告)日:2004-12-07

    申请号:US10069310

    申请日:2002-05-14

    IPC分类号: B21K124

    摘要: The invention relates among others to a method for producing outlet openings (32) in a valve, in particular a fuel injection valve. The injection valve has a fuel inlet (2), an excitable actuating device (1, 2, 19) by which a valve closing member (28) is movable, a fixed valve seat (27) embodied on a valve seat element (26), with which seat the valve closing member (28) cooperates to open and close the valve, and at least one outlet opening (32), as a fuel outlet, provided downstream of the valve seat (27). The at least one outlet opening 32 is produced in such a way that in a first method step, a through hole is created in the valve seat element (26), and in a second method step, from the ejection end of the through hole, an outlet region is created that is altered in shape and/or size and/or contour compared to the through hole.

    摘要翻译: 本发明涉及一种用于在阀门,特别是燃料喷射阀中产生出口(32)的方法。 喷射阀具有燃料入口(2),可闭合阀体(28)的活动的可激励的致动装置(1,2,19),具有在阀座元件(26)上的固定阀座(27) ,阀关闭构件(28)与哪个位置协作以打开和关闭阀,以及设置在阀座(27)下游的作为燃料出口的至少一个出口开口(32)。 制造至少一个出口32,使得在第一方法步骤中,在阀座元件(26)中形成通孔,并且在第二方法步骤中,从通孔的喷射端, 产生与通孔相比形状和/或尺寸和/或轮廓改变的出口区域。

    Fuel injection valve
    10.
    发明授权
    Fuel injection valve 失效
    燃油喷射阀

    公开(公告)号:US06739525B2

    公开(公告)日:2004-05-25

    申请号:US10148942

    申请日:2002-09-30

    IPC分类号: F02M6100

    摘要: A fuel injector, in particular for direct injection of fuel into a combustion chamber of an internal combustion engine, having an actuator for actuating a valve needle, the valve needle having on one injection end a valve-closure member which forms a sealing seat together with a valve-seat surface formed on a valve-seat member. Fuel channels are provided in a valve needle guide which is designed in one piece with or is connected to the valve-seat member and they open into a swirl chamber. The number of fuel channels is such that a turbulent flow produced in the swirl chamber is homogeneous in a circumferential direction.

    摘要翻译: 燃料喷射器,特别是用于将燃料直接喷射到内燃机的燃烧室中,具有用于致动阀针的致动器,所述阀针在一个喷射端具有形成密封座的阀关闭构件以及 形成在阀座构件上的阀座面。 燃料通道设置在阀针导向件中,该阀针导向件设计成一体地与阀座构件连接或连接到阀座构件,并且它们打开成涡流室。 燃料通道的数量使得在涡流室中产生的紊流在圆周方向上是均匀的。