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    • 3. 发明公开
    • DRUCKREGLER FÜR EIN DIESELEINSPRITZSYSTEM
    • DRUCKREGLERFÜREIN DIESELEINSPRITZSYSTEM
    • EP2689126A1
    • 2014-01-29
    • EP12704413.9
    • 2012-02-15
    • Robert Bosch GmbH
    • ROCHAS, Pierre-MarieAMBLARD, AlainJULIEN, Jean-Roch
    • F02M63/00F02M63/02
    • F02M63/0073F02M63/0052F02M63/007F02M63/0078F02M63/0245F02M63/025
    • The present invention relates substantially to a pressure regulator for a diesel fuel injection system, to a diesel fuel injection system, preferably to a high-pressure diesel fuel injection system, to a diesel engine provided with such a diesel fuel injection system as well as to a vehicle having such a diesel engine. The pressure regulator comprises an inlet (5) which is connectable to a reservoir of a diesel fuel injection system of a diesel engine, an outlet (7) which is connectable to a low-pressure group, controllable closing means which can be driven by an actuator (13) between a first state in which the inlet (5) and the outlet (7) are hermetically isolated and a second state in which the inlet (5) is connected to the outlet (7), as well as a plurality of spaces (21, 23, 25) arranged on the side of the closing means provided with the outlet (7). A pressure compensation duct (27, 27.1) is provided, which connects at least two (25, 23; 25, 21; 25, 21, 23) of the above-mentioned spaces (21, 23, 25) to each other.
    • 一种用于柴油燃料喷射系统的压力调节器,包括被配置为连接到柴油发动机的柴油燃料喷射系统的容器的入口,被配置为连接到低压组的出口,被配置为 由致动器在其中入口和出口是气密隔离的第一状态和其中入口连接到出口的第二状态和在包括出口的关闭装置的一侧上布置的多个空间的致动器驱动。 压力补偿管道被配置为将多个空间中的至少两个空间彼此连接。
    • 5. 发明授权
    • KRAFTSTOFFEINSPRITZEINRICHTUNG FÜR EINE BRENNKRAFTMASCHINE
    • KRAFTSTOFFEINSPRITZEINRICHTUNGFÜREINE BRENNKRAFTMASCHINE
    • EP1402174B1
    • 2006-04-12
    • EP02742765.7
    • 2002-05-18
    • ROBERT BOSCH GMBH
    • STRAHBERGER, HerbertMOLING, SergeVOIGT, PeterAMBLARD, Alain
    • F02M57/02F02M61/20F02M45/08F02M59/36
    • F02M57/02F02B3/06F02M45/08F02M59/366F02M61/205F02M2200/505
    • The fuel injection device comprises a fuel high pressure pump (10) and a fuel injection valve (12) for a cylinder of the internal combustion engine. The high pressure pump (10) has a pump working chamber (22) and the fuel injection valve (12) has an injection valve element (28), via which the at least one injection opening (32) is controlled and which can be displaced counter to the force of a closing spring (44) in an opening direction (29) by the pressure prevailing in a pressure chamber (40) connected to the pump working chamber (22). The closing spring (44) is supported on the injection valve element (28) on one side and on a displaceable pressure compensation plunger (50) on the other. Said pressure compensation plunger, on the side thereof facing away from the closing spring (44), delimits a vestibule (85) connected to the pump working chamber (22). The pressure compensation plunger (50) can be displaced counter to the force of the closing spring (44) and into a storage chamber (55). The vestibule (85) is connected to the pump working chamber (22) via a first throttle point (84), and the pressure chamber (40) of the fuel injection valve (12) is connected to the pump working chamber (22) via a second throttle point (93) while bypassing the vestibule (85).
    • 燃料喷射装置包括用于内燃机的气缸的燃料高压泵(10)和燃料喷射阀(12)。 高压泵10具有泵工作室22并且燃料喷射阀12具有喷射阀元件28,至少一个喷射开口32通过喷射阀元件28被控制并且可以被移位 通过连接到泵工作室(22)的压力室(40)中的压力,克服打开方向(29)上的关闭弹簧(44)的力。 闭合弹簧(44)一侧支撑在喷射阀元件(28)上,另一侧支撑在可移动的压力补偿柱塞(50)上。 所述压力补偿柱塞在其背离闭合弹簧(44)的一侧限定连接到泵工作室(22)的通廊(85)。 压力补偿柱塞(50)可以逆着闭合弹簧(44)的力移动并进入储存室(55)。 前庭(85)通过第一节流点(84)与泵工作室(22)连接,燃料喷射阀(12)的压力室(40)通过泵 第二节流点(93),同时绕过通廊(85)。
    • 6. 发明公开
    • KRAFTSTOFFEINSPRITZEINRICHTUNG F R EINE BRENNKRAFTMASCHINE
    • EP1606511A1
    • 2005-12-21
    • EP03815794.7
    • 2003-10-18
    • ROBERT BOSCH GMBH
    • DUPLAT, GérardPOURRET, RaphaelAMBLARD, AlainCOMBE, Raphael
    • F02M61/00F02M59/10F02M61/20F02M55/04F02M45/02F02M45/04
    • F02M61/205F02M45/08F02M55/002F02M55/04F02M57/023F02M63/0015F02M63/004F02M63/0043F02M2200/315
    • The fuel injection device comprises a fuel high-pressure pump (10) and a fuel injection valve (12) for a cylinder of a combustion engine. The fuel high-pressure pump (10) has a pump working space (22), and the fuel injection valve (12) has an injection valve element (38) via which at least one injection opening (32) is controlled and which can be moved in a direction of opening (29) against the force of a closing spring (44) by the pressure prevailing inside a pressure space (40) having a connection (48) to the pump working space (22). The closing spring (44) is supported on the injection valve element (28) and on a displaceable accumulator plunger (50) which, via its side facing away from the closing spring (44), delimits an accumulator space (52) having a connection (54) to the pump working space (22) and which can be displaced against the force of the closing spring (44) and into a spring space (46). The spring space (46) has a connection, which is formed by a channel (76), to a low-pressure area (62) extending along the spring space (46). Said spring space (46) is connected to an end area of the channel (76) via a throttling point (78), and the channel (76), at the opposite end thereof, leads into the low-pressure area (62).
    • 燃料喷射装置包括用于内燃机的气缸的燃料高压泵(10)和燃料喷射阀(12)。 燃料高压泵(10)具有泵工作空间(22),并且燃料喷射阀(12)具有喷射阀元件(38),通过该喷射阀元件至少一个喷射开口(32)被控制,并且该喷射阀元件 通过在具有与泵工作空间(22)的连接部(48)的压力空间(40)内占主导的压力克服闭合弹簧(44)的力而沿打开方向(29)移动。 闭合弹簧(44)支撑在喷射阀元件(28)上和可移动的蓄能器柱塞(50)上,该蓄能器柱塞通过其背离闭合弹簧(44)的一侧界定蓄能器空间(52) (54)连接到所述泵工作空间(22)并且可以抵抗所述闭合弹簧(44)的力移动并进入到弹簧空间(46)中。 弹簧空间(46)具有由通道(76)形成的连接部与沿着弹簧空间(46)延伸的低压区域(62)连接。 所述弹簧空间46通过节流点78连接到通道76的端部区域,并且通道76在其相对端处通向低压区域62。