KRAFTSTOFFEINSPRITZVENTIL FÜR BRENNKRAFTMASCHINEN
    1.
    发明公开
    KRAFTSTOFFEINSPRITZVENTIL FÜR BRENNKRAFTMASCHINEN 有权
    燃料喷射阀用于内燃机

    公开(公告)号:EP1658427A1

    公开(公告)日:2006-05-24

    申请号:EP04738755.0

    申请日:2004-06-22

    摘要: The invention relates to a fuel injection valve which comprises a housing (1) with a valve seat (20) configured therein and an interior valve needle (17) and an exterior valve needle (15). The pressure in an exterior control chamber (56) exerts a closing force onto the exterior valve needle (17) and the pressure in an interior control chamber (54) exerts a corresponding closing force onto the interior valve needle (15). The interior control chamber (54) is linked with a control valve chamber (60) of a control valve (30) via an interior outlet throttle (51) and the exterior control chamber (56) via an exterior outlet throttle (49), a valve member (62) being disposed in said control valve chamber (60). The interior control chamber (54) is linked with a high-pressure area (8) via an interior inlet throttle (47) and the exterior control chamber (56) via an exterior inlet throttle (45). The valve member (62) can assume a first, a second and a third switched position so that the pressure in the control chambers (54; 56) can be controlled to open only the exterior valve needle (17) as well as both valve needles (15; 17).

    KRAFTSTOFFEINSPRITZVENTIL FÜR BRENNKRAFTMASCHINEN
    2.
    发明授权
    KRAFTSTOFFEINSPRITZVENTIL FÜR BRENNKRAFTMASCHINEN 有权
    KRAFTSTOFFEINSPRITZVENTILFÜRBRENNKRAFTMASCHINEN

    公开(公告)号:EP1658427B1

    公开(公告)日:2008-02-13

    申请号:EP04738755.0

    申请日:2004-06-22

    摘要: The invention relates to a fuel injection valve which comprises a housing (1) with a valve seat (20) configured therein and an interior valve needle (17) and an exterior valve needle (15). The pressure in an exterior control chamber (56) exerts a closing force onto the exterior valve needle (17) and the pressure in an interior control chamber (54) exerts a corresponding closing force onto the interior valve needle (15). The interior control chamber (54) is linked with a control valve chamber (60) of a control valve (30) via an interior outlet throttle (51) and the exterior control chamber (56) via an exterior outlet throttle (49), a valve member (62) being disposed in said control valve chamber (60). The interior control chamber (54) is linked with a high-pressure area (8) via an interior inlet throttle (47) and the exterior control chamber (56) via an exterior inlet throttle (45). The valve member (62) can assume a first, a second and a third switched position so that the pressure in the control chambers (54; 56) can be controlled to open only the exterior valve needle (17) as well as both valve needles (15; 17).

    摘要翻译: 燃料喷射阀技术领域本发明涉及一种燃料喷射阀,其包括具有构造在其中的阀座(20)以及内部阀针(17)和外部阀针(15)的壳体(1)。 外部控制室(56)中的压力向外部阀针(17)施加闭合力,并且内部控制室(54)中的压力向内部阀针(15)施加相应的闭合力。 内部控制腔室54经由内部出口节流阀51与外部控制腔室56经由外部出口节流阀49与控制阀30的控制阀腔室60连接, 阀构件(62)设置在所述控制阀室(60)中。 内部控制腔室(54)经由内部进口节流阀(47)和外部控制腔室(56)经由外部进口节流阀(45)与高压区域(8)连接。 阀构件(62)可呈现第一,第二和第三切换位置,使得控制室(54; 56)中的压力可被控制为仅打开外部阀针(17)以及两个阀针 (15; 17)。

    KRAFTSTOFFEINSPRITZEINRICHTUNG FÜR EINE BRENNKRAFTMASCHINE
    5.
    发明授权
    KRAFTSTOFFEINSPRITZEINRICHTUNG FÜR EINE BRENNKRAFTMASCHINE 有权
    KRAFTSTOFFEINSPRITZEINRICHTUNGFÜREINE BRENNKRAFTMASCHINE

    公开(公告)号:EP1552138B1

    公开(公告)日:2007-04-18

    申请号:EP03709647.6

    申请日:2003-02-25

    申请人: ROBERT BOSCH GMBH

    摘要: The fuel injection device is provided with a high-pressure fuel pump (10) with a pump working chamber (22) and a fuel injection valve (12) connected thereto for each cylinder of the internal combustion engine. An electrically actuated control valve (60) is used to set up a connection between the pump working chamber (22) and a discharge chamber (24). The fuel injection device (12) comprises a first injection valve member (28) which is controlled by at least one injection opening (32) and inside of which a second injection valve member (128) is displaceably guided, enabling at least one second injection opening (132) to be controlled. The second injection valve member (128) is directly impinged upon by pressure prevailing in a fuel-filled control pressure chamber (24) in the direction of closing. The control chamber (54) is provided with a valve(72; 172)-controlled connection (70; 170) to a pressure area (71; 171) wherein a delayed pressure build-up or decrease in pressure occurs in relation to the pump working chamber (22) during closing or opening of the control valve (60).The valve (72; 172) has a valve member (76, 80; 176) which, in the direction of opening, is imposed upon by the pressure prevailing in the pressure chamber (71; 171) and which is imposed upon by the pressure prevailing in the pump working chamber (22) in the direction of closing.

    摘要翻译: 燃料喷射装置设置有高压燃料泵(10),该高压燃料泵具有用于内燃机的每个气缸的泵工作室(22)和与其连接的燃料喷射阀(12)。 电致动控制阀(60)用于建立泵工作室(22)和排放室(24)之间的连接。 燃料喷射装置(12)包括由至少一个喷射开口(32)控制的第一喷射阀构件(28),并且第二喷射阀构件(128)可移动地引导到第一喷射阀构件(128)的内部,使得至少一个第二喷射 打开(132)进行控制。 第二喷射阀构件(128)通过在充满燃料的控制压力室(24)中在关闭方向上存在的压力而直接冲击。 控制腔室(54)设置有与压力区域(71; 171)相关的阀门(72; 172) - 受控连接(70; 170),其中相对于泵产生压力的延迟压力升高或降低 其特征在于,在所述控制阀(60)的关闭或打开期间,所述控制阀(72; 172)具有阀部件(76,80; 176),所述阀部件在打开方向上受到压力 在所述压力室(71; 171)中并且由在所述泵工作室(22)中在关闭方向上存在的压力施加。

    KRAFTSTOFF-EINSPRITZVORRICHTUNG FÜR EINE BRENNKRAFTMASCHINE
    6.
    发明授权
    KRAFTSTOFF-EINSPRITZVORRICHTUNG FÜR EINE BRENNKRAFTMASCHINE 有权
    燃料喷射装置,用于内燃发动机

    公开(公告)号:EP1654454B1

    公开(公告)日:2006-12-13

    申请号:EP04738751.9

    申请日:2004-06-22

    申请人: ROBERT BOSCH GMBH

    IPC分类号: F02M45/08 F02M47/02 F02M63/00

    摘要: A fuel injection device (20) for a combustion engine comprises a first valve element (36) with a pressure surface (38) that acts in an opening direction. An impinging device (50) acts in a closing direction. A second valve element (34) comprises a hydraulic control surface (58), which acts in the closing direction and which delimits a hydraulic control space (60). A corresponding impinging device acts in an opening direction. In addition, a high-pressure connection (24) is provided. The invention provides that the fuel injection device (20) has an additional valve device (66) that, in a first final position, connects the pressure space (40) only to the low pressure connection (28) and connects the control space (60) only to the high pressure connection (24). In a second final position, the additional valve device (66) connects the pressure space (40) only to the high pressure connection (24) and separates the control space (60) essentially from the high pressure connection (24). In an intermediate position, the pressure space (40) is connected only to the high pressure connection (24), and the control space (60) is simultaneously connected to the high pressure connection (24) and to the low pressure connection (28).

    KRAFTSTOFFEINSPRITZVENTIL
    7.
    发明公开

    公开(公告)号:EP1727977A1

    公开(公告)日:2006-12-06

    申请号:EP05701507.5

    申请日:2005-01-13

    申请人: ROBERT BOSCH GMBH

    IPC分类号: F02M45/08

    摘要: The invention relates to a fuel-injection valve comprising a nozzle module (12). An outer nozzle needle (24), which co-operates with a first injection orifice (32) and is surrounded by a high-pressure chamber (20) that is connected to a fuel-supply channel (62) and an inner nozzle needle (26), which co-operates with at least one second injection orifice (34) and is guided in a channel that axially penetrates the outer nozzle needle (24), are configured in said module to be axially displaced. The fuel-injection valve also comprises a valve-type valve control module (12), which controls the fluid pressure prevailing in a valve control chamber (36) that is equipped with an input throttle (64) and an output throttle (68). The level of the fluid pressure defines the position of the outer nozzle needle (24) and the inner nozzle needle (26). The outer nozzle needle (24) has at least one transverse channel (46), via which fuel can be conducted from the high-pressure chamber (20) to the periphery and the inner pressure stage (50) of the inner nozzle needle (26).

    摘要翻译: 本发明涉及一种包括喷嘴模块(12)的燃料喷射阀。 与第一喷射孔(32)配合并且被连接到燃料供应通道(62)的高压室(20)和内部喷嘴针(32)围绕的外部喷嘴针(24) 与所述至少一个第二喷射孔(34)配合并且在轴向穿透所述外部喷嘴针(24)的通道中被引导的所述模块被构造成在所述模块中被轴向移位。 燃料喷射阀还包括阀式阀控制模块(12),其控制配备有输入节流阀(64)和输出节流阀(68)的阀控制腔室(36)中的流体压力。 流体压力的水平限定了外部喷嘴针(24)和内部喷嘴针(26)的位置。 外部喷嘴针(24)具有至少一个横向通道(46),通过该横向通道可将燃料从高压室(20)引导至内部喷嘴针(26)的周边和内部压力级(50) )。

    EINSPRITZDÜSE
    9.
    发明公开

    公开(公告)号:EP1697628A1

    公开(公告)日:2006-09-06

    申请号:EP04762761.7

    申请日:2004-09-07

    申请人: ROBERT BOSCH GMBH

    发明人: BOEHLAND, Peter

    IPC分类号: F02M45/08 F02M57/02 F02M47/02

    摘要: The invention relates to an injection nozzle (1) for an internal combustion engine, particularly in a motor vehicle. A first nozzle needle (3) controls at least one first injection hole (5) while a second nozzle needle (4) controls at least one second injection hole (6). A control chamber (32) is connected to a pressure chamber (34) via a throttle line (32), an injection pressure being adjustable inside said pressure chamber (34). A first control piston (41) cooperates with a first combination of needles (17) encompassing the first nozzle needle (3) and can be impinged upon on a first control surface (43) by the control pressure prevailing in the control chamber (32). An axial play (44) is embodied between the first control piston (41) and the first combination of needles (17) in the closed position of the first nozzle needle (3). A second control piston (42) cooperates with a second combination of needles (30) encompassing the second nozzle needle (4) and can be impinged upon on a second control surface (45) by the control pressure. The second control piston (42) leans on the second combination of needles (30) in a closed position of the second nozzle needle (4).

    KRAFTSTOFFEINSPRITZEINRICHTUNG FÜR EINE BRENNKRAFTMASCHINE
    10.
    发明授权
    KRAFTSTOFFEINSPRITZEINRICHTUNG FÜR EINE BRENNKRAFTMASCHINE 有权
    KRAFTSTOFFEINSPRITZEINRICHTUNGFÜREINE BRENNKRAFTMASCHINE

    公开(公告)号:EP1525390B1

    公开(公告)日:2005-12-14

    申请号:EP03709648.4

    申请日:2003-02-25

    申请人: ROBERT BOSCH GMBH

    发明人: BOEHLAND, Peter

    摘要: Disclosed is a fuel injection device comprising a high-pressure fuel pump (10) and a fuel injection valve (12) that is connected thereto and is provided for each cylinder of the internal combustion engine. Said high-pressure fuel pump (10) comprises two pump pistons (18, 118) that are driven by the internal combustion engine in a lifting movement and define a pump working chamber (22) to which fuel is fed from a fuel reservoir (24). A second pump piston is guided in an at least approximately coaxially displaceable manner within a first pump piston (18). Both pump pistons (18, 118) can optionally be coupled to each other such that said pistons (18, 118) move as a unit during a delivery stroke, or the second pump piston (118) can be fixed in a passive position such that only the first pump piston (18) performs a delivery stroke. The fuel injection valve (12) is provided with two injection valve members (28, 128), a second injection valve member (128) which is at least indirectly impinged upon by the pressure prevailing in a control pressure chamber (52) being guided in a displaceable manner within the first injection valve member (28). The control pressure chamber (52) is provided with a connection (53) to the pump working chamber (22), which is controlled by the second pump piston (118), the control pressure chamber (52) being separated from the pump working chamber (22) if the second pump piston (118) is placed in the passive position.

    摘要翻译: 公开了一种包括高压燃料泵(10)和燃料喷射阀(12)的燃料喷射装置,所述燃料喷射阀连接到所述燃料喷射装置并且设置用于所述内燃机的每个气缸。 所述高压燃料泵(10)包括两个泵活塞(18,118),所述两个泵活塞由内燃机在提升运动中驱动并且限定泵工作室(22),燃料从燃料容器(24) )。 第二泵活塞在第一泵活塞(18)内以至少大致同轴可移动的方式被引导。 两个泵活塞(18,118)可以可选地彼此联接,使得所述活塞(18,118)在输送行程期间作为一个单元移动,或者第二泵活塞(118)可以固定在被动位置,使得 只有第一泵活塞(18)执行输送行程。 燃料喷射阀(12)设有两个喷射阀构件(28,128),第二喷射阀构件(128),该第二喷射阀构件(128)至少通过在控制压力室(52)中引导的压力 在第一喷射阀构件(28)内可移动的方式。 控制压力室(52)设置有与泵工作室(22)的连接(53),其由第二泵活塞(118)控制,控制压力室(52)与泵工作室 (22),如果第二泵活塞(118)被置于被动位置。