Fuel injector
    1.
    发明公开
    Fuel injector 审中-公开
    喷油器

    公开(公告)号:EP2660457A1

    公开(公告)日:2013-11-06

    申请号:EP12166388.4

    申请日:2012-05-02

    发明人: Guerrato, Diego

    IPC分类号: F02M51/06 F02M63/00 F02M61/04

    摘要: A fuel injector for an internal combustion engine comprises a valve needle (12) which is movable within a bore (30) relative to a valve needle seating (34) defined by the bore to control fuel delivery through at least one outlet (38) of the injector, the bore (30) being supplied with fuel at high pressure for injection when the valve needle is moved away from the valve needle seating (34); an actuator (14) coupled to the valve needle (12) so as to effect movement thereof; and a sac volume (40) for fuel at a lower end of the valve needle (12) and downstream of the valve needle seating (34). A balance chamber (60) for fuel is provided at an upper end of the valve needle (12) which communicates with the sac volume (40) via a connecting flow path (62). The balance chamber (60), the connecting flow path (62) and the sac volume (40) define a volume for fuel which is isolated from fuel within the bore (30) when the valve needle (12) is engaged with the valve needle seating (34).

    摘要翻译: 一种用于内燃机的燃料喷射器包括阀针(12),所述阀针可在孔(30)内相对于由所述孔限定的阀针座(34)内移动,以控制通过所述孔的至少一个出口(38) 当所述阀针移离所述阀针座(34)时,所述喷射器向所述孔(30)供应高压燃料以用于喷射; 耦合到所述阀针(12)以实现其移动的致动器(14) 和在阀针(12)下端和阀针座(34)下游的燃料囊容积(40)。 在阀针(12)的经由连接流路(62)与囊容积(40)连通的上端设置有燃料用的平衡室(60)。 当阀针(12)与阀针(12)接合时,平衡腔室(60),连接流动通路(62)和囊腔(40)限定燃料的容积, 座位(34)。

    Fastening member
    3.
    发明公开
    Fastening member 有权
    Befestigungselement

    公开(公告)号:EP2336548A1

    公开(公告)日:2011-06-22

    申请号:EP09179699.5

    申请日:2009-12-17

    IPC分类号: F02M61/16 F16B37/14 F02M61/14

    摘要: A fastening member (100) for fastening a first component (118) to a second component (110) in an end-to-end configuration along a common axis (A) is disclosed. The fastening member (100) comprises a first portion (124) having a threaded region for engagement with a corresponding threaded region (120) of the first component (118), a second portion (126) for applying a retaining force to the second component (110) to hold the first and second components (118, 110) in sealing engagement, and a deformable portion (130) intermediate the first and second portions (124, 126). The fastening member is particularly suitable for use as a cap nut in a fuel injector of the type having a cylinder pressure sensor integrated into the cap nut.

    摘要翻译: 公开了一种用于沿着公共轴线(A)以端对端配置将第一部件(118)紧固到第二部件(110)的紧固部件(100)。 紧固构件(100)包括具有用于与第一部件(118)的对应螺纹区域(120)接合的螺纹区域的第一部分(124),用于向第二部件施加保持力的第二部分(126) (110)将第一和第二部件(118,110)保持在密封接合状态,以及在第一和第二部分(124,126)之间的可变形部分(130)。 紧固构件特别适用于具有集成在盖螺母中的气缸压力传感器的类型的燃料喷射器中的盖帽螺母。