INJEKTOR
    1.
    发明公开
    INJEKTOR 审中-公开

    公开(公告)号:EP3008326A1

    公开(公告)日:2016-04-20

    申请号:EP14726137.4

    申请日:2014-05-22

    Abstract: The invention relates to an injector (15) comprising an actuator space (45) in which an actuator (50) is arranged, a piston guide (60, 106, 115) in which a bore hole (65, 105, 115) is provided, and a piston (70, 100, 110) that is arranged in the bore hole (65, 105, 115) of the piston guide (60, 106, 115), said piston (70, 100, 110) having a first end face (75) that faces the actuator (50) and delimiting, with said first end face (75), a first space (45, 80, 125) that is arranged in and/or on the bore hole (65, 105), and said piston (70, 100, 110) delimiting, with a second end face (86) that lies opposite the first space (45, 80, 125), an adjoining second space (80, 85, 40) in and/or on the bore hole (65, 105). The piston (70, 100, 110) is arranged between the first space (45, 80, 125) and the second space (80, 85, 40) and a gap (150, 155, 185) with a gap width b is provided around the circumference of said piston (70, 100, 110) between the piston (70, 100, 110) and the bore hole (65, 105, 115), said piston (70, 100, 110) comprising a first material and the piston guide (60, 106, 115) comprising a second material, the first material having a first thermal expansion when heated and the second material having a second thermal expansion when heated which differs from the first thermal expansion, and the first material being selected in relation to the second material such that when the piston guide (60, 106, 115) and/or piston (70, 100, 110) is/are heated, the gap width b of the gap (150, 155, 185) decreases so as to limit fuel leakage (160, 170, 190) between the first space (45, 80, 125) and the second space (80, 85, 40).

    Abstract translation: 本发明涉及一种包括其中布置有致动器(50)的致动器空间(45)的注射器(15),其中设置有钻孔(65,105,115)的活塞导向器(60,106,115) ,以及布置在所述活塞引导件(60,106,115)的所述钻孔(65,105,115)中的活塞(70,100,110),所述活塞(70,100,110)具有第一端部 ,所述第一端面(75)面对所述致动器(50)并且与所述第一端面(75)一起限定布置在所述钻孔(65,105)中和/或上的第一空间(45,80,125) ,并且所述活塞(70,100,110)利用与所述第一空间(45,80,125)相对的第二端面(86)限定相邻的第二空间(80,85,40),所述第二空间(80,85,40)位于所述第一空间 钻孔(65,105)。 活塞(70,100,110)布置在第一空间(45,80,125)和第二空间(80,85,40)之间并且具有间隙宽度b的间隙(150,155,185)被提供 围绕所述活塞(70,100,110)和所述钻孔(65,105,115)之间的所述活塞(70,100,110)的圆周,所述活塞(70,100,110)包括第一材料,并且所述活塞 包括第二材料的活塞引导件(60,106,115),所述第一材料在受热时具有第一热膨胀并且所述第二材料在受热时具有与所述第一热膨胀不同的第二热膨胀,并且所述第一材料选自 与第二材料的关系,使得当活塞导向件(60,106,115)和/或活塞(70,100,110)被加热时,间隙(150,155,185)的间隙宽度b减小 以限制第一空间(45,80,125)与第二空间(80,85,40)之间的燃料泄漏(160,170,190)。

    FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINE
    5.
    发明公开
    FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机燃油喷射阀

    公开(公告)号:EP2325473A1

    公开(公告)日:2011-05-25

    申请号:EP09814203.7

    申请日:2009-07-29

    CPC classification number: F02M51/0653 F02M2200/02 F02M2200/90 F02M2200/9061

    Abstract: In a fuel injection valve, it is intended to enhance valve-closing responsivity while maintaining durability (anti wear property) of a collision portion between a stationary core and a movable core and valve-opening responsivity.
    An annular end face 106A of the movable core 106 in the fuel injection valve is provided with a collision portion 106C that collides to a stationary core 107 when the movable core is magnetically attracted toward the stationary core side and a non-collision portion that keeps a fluid gap between both cores at an area of an outer side or an inner side from the collision portion. The annular end faces of the stationary core and the movable core are coated with platings 30, 31 having anti wear property, and at least one of the platings of the stationary core and the movable core is formed in such a manner that the thickness thereof at the collision portion 106C is to be thicker and the thickness thereof at the non-collision portion is to be thinner.

    Abstract translation: 在燃料喷射阀中,旨在提高阀关闭响应性,同时保持固定芯和活动芯之间的碰撞部分的耐久性(抗磨损性)和阀开启响应性。 燃料喷射阀中的可动芯106的环形端面106A设置有碰撞部分106C,该碰撞部分106C当可动芯被磁性地吸向静止芯侧时与固定芯107碰撞;以及非碰撞部分, 在两个芯部之间的在碰撞部分的外侧或内侧区域处的流体间隙。 固定芯和活动芯的环形端面涂覆有具有抗磨损性的镀层30,31,并且固定芯和活动芯的至少一个镀层形成为使得其厚度在 碰撞部分106C将变厚并且在非碰撞部分处的厚度变薄。

    KRAFTSTOFFINJEKTOR
    9.
    发明公开

    公开(公告)号:EP1907689A1

    公开(公告)日:2008-04-09

    申请号:EP06762739.8

    申请日:2006-07-21

    Applicant: L'ORANGE GMBH

    Abstract: The invention relates to a fuel injector for internal combustion engines, which comprises an axial bore (8) which can be cross-flown by fuel in the nozzle body (7), said bore receiving a nozzle needle (6) which is guided in an axially displaceable manner in the nozzle body (7). Said nozzle needle (6) comprises a seating surface in the nozzle head on one end thereof, and supports a bushing (1) which can be displaced in relation to the nozzle needle (6) and which is arranged on the periphery of the nozzle needle (6), on the other end thereof. Said bushing (1) defines a control chamber (10) which is connected to the chamber which is circulated by fuel on the external side of the bushing (1) via an inlet channel (2, 9) in the bushing (1) and which is supported in an elastic manner on the nozzle needle (6), in a position counter to an axial component of the fuel injector which is connected to the nozzle head (7), and comprises an outlet channel which is controlled by a control valve. According to the invention, a filter (3) for filtering the fuel which flows over the inlet channel (2, 9) to the control chamber is provided on the bushing (1).

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