Injection valve having a bypass throttle
    3.
    发明授权
    Injection valve having a bypass throttle 有权
    具有旁路节气门的喷射阀

    公开(公告)号:US07575180B2

    公开(公告)日:2009-08-18

    申请号:US10755101

    申请日:2004-01-09

    IPC分类号: F02D1/06

    CPC分类号: F02M47/027 F02M2200/21

    摘要: The invention relates to an injection valve, comprising a control chamber (15) with a control piston (16) that is functionally linked with a nozzle needle (35). The control chamber (15) is linked, via an inlet throttle (13), with pressurized fuel, and with an outlet throttle (14) with a valve chamber (9). A servo valve (5) is disposed in the valve chamber (9), said servo valve opening a connection between the valve chamber (9) and a return element (40) depending on its position. The inventive injection valve further comprises a bypass throttle (12) that is interposed between the fuel feed line and the valve chamber.

    摘要翻译: 本发明涉及一种注射阀,其包括具有与喷嘴针(35)功能性连接的控制活塞(16)的控制室(15)。 控制室(15)经由入口节流阀(13)与加压燃料连接,并且具有带有阀室(9)的出口节流阀(14)。 伺服阀(5)设置在阀室(9)中,所述伺服阀根据其位置打开阀室(9)和返回元件(40)之间的连接。 本发明的喷射阀还包括插入在燃料供给管线和阀室之间的旁路节流阀(12)。

    Injection valve having a bypass throttle

    公开(公告)号:US06789743B2

    公开(公告)日:2004-09-14

    申请号:US10259148

    申请日:2002-09-27

    IPC分类号: B05B900

    CPC分类号: F02M47/027 F02M2200/21

    摘要: The invention relates to an injection valve, comprising a control chamber (15) with a control piston (16) that is functionally linked with a nozzle needle (35). The control chamber (15) is linked, via an inlet throttle (13), with pressurized fuel, and with an outlet throttle (14) with a valve chamber (9). A servo valve (5) is disposed in the valve chamber (9), said servo valve opening a connection between the valve chamber (9) and a return element (40) depending on its position. The inventive injection valve further comprises a bypass throttle (12) that is interposed between the fuel feed line and the valve chamber.

    Fuel injection valve for internal combustion engines
    9.
    发明授权
    Fuel injection valve for internal combustion engines 有权
    内燃机燃油喷射阀

    公开(公告)号:US06250563B1

    公开(公告)日:2001-06-26

    申请号:US09494404

    申请日:2000-01-28

    IPC分类号: F02M4702

    摘要: An actuator is operatively connected to a closing member via a tappet. The closing member is introduced in a valve chamber and forms, with a conically tapering valve seat as part of a servovalve, a seal resistant to high pressure. The cross section of the closing member is configured to be mushroom-shaped, a closing head being in the form of a part-sphere and having a central flattening, with the result that the tappet has an enlarged bearing surface. A stem of the closing member is surrounded by a valve spring. The closing member is preferably shaped out of a solid sphere.

    摘要翻译: 致动器经由挺杆可操作地连接到关闭构件。 关闭构件被引入阀室中,并且形成具有作为伺服阀的一部分的锥形锥形阀座,耐受高压的密封件。 关闭构件的横截面构造为蘑菇形,闭合头为部分球形并具有中心平坦化,结果挺杆具有较大的支承面。 封闭构件的杆被阀弹簧包围。 闭合构件优选地由固体球形成。

    Method for producing a hole in a body, specifically an injection hole in a fuel injector
    10.
    发明授权
    Method for producing a hole in a body, specifically an injection hole in a fuel injector 有权
    一种用于在主体中产生孔的方法,特别是在燃料喷射器中的喷射孔

    公开(公告)号:US07202441B2

    公开(公告)日:2007-04-10

    申请号:US10640806

    申请日:2003-08-14

    IPC分类号: B23K26/38 B24B5/48 F02M61/16

    摘要: A method for producing a hole in a body, especially an injection hole in a fuel injector is disclosed. The hole (L) is first produced by a percussion boring process or a trepanation boring process using a laser. The percussion boring process lasts less than 3 seconds. The trepanation boring process lasts less than 10 seconds. After percussion boring or trepanation boring a smoothing step is carried out by forcing a medium that is mixed with abrasive particles under pressure through the hole until any roughnesses of surfaces (F) of the body that form the hole (L) are substantially removed.

    摘要翻译: 公开了一种用于在主体中产生孔的方法,特别是燃料喷射器中的喷射孔。 孔(L)首先通过使用激光的冲击钻孔工艺或双面钻孔工艺生产。 打击乐无聊的过程持续不到3秒钟。 双打无聊的过程持续不到10秒。 在打击镗孔或平移镗孔之后,通过迫使在压力下与研磨颗粒混合的介质通过孔直到形成孔(L)的主体的表面(F)的基本上被去除的任何粗糙度来进行平滑化步骤。