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    • 6. 发明申请
    • PISTON PUMP FOR HIGH-PRESSURE FUEL GENERATION
    • 活塞泵燃油高压GENERATION
    • WO0039450A8
    • 2000-08-17
    • PCT/DE9903643
    • 1999-11-16
    • BOSCH GMBH ROBERTGUENTERT JOSEF
    • GUENTERT JOSEF
    • F02M59/46F02M37/04F02M39/00F02M59/06F02M59/08F04B53/10
    • F02M59/06F02M37/043F02M39/005F04B53/1005
    • High-pressure piston pump (6) with several pump elements (7) that is connected to a low-pressure flow-regulated pump (1) on the suction side. A first and a second check valve (10, 11) are connected in series to each pump element (7) on the suction side. The first check valve (10) opens against the force of a spring during the suction phase of the pump element (7) and closes during the delivery phase. The second check valve (11) opens against the force of a spring and closes assisted by the force of a spring when the fuel delivered by the pump (1) reaches pressures that are higher than the negative pressure generated in a cylinder chamber (9) of the pump element (7). The second check valve (11) regulates the amount of fuel delivered to the pump element (7). The first check valve (10) blocks the cylinder chamber (9) from the check valve (11) during the delivery phase. The piston pump ensures generation of high pressure fuel in fuel injection systems in internal combustion engines, especially in a common rail injection system.
    • 具有多个泵元件(7)的一个高压活塞泵(6)是在连接燃料低压调节速率递送泵(1)的吸入侧。 每个泵元件(7)是在吸入侧的第一和串联连接在上游的第二止回阀(10,11)。 第一单向阀(10)打开针对在泵元件(7)的吸入阶段弹簧的力和闭合输送阶段。 第二单向阀(11)打开克服弹簧力,并通过在从所述泵(1)的燃料供应的燃料的压力,这是在Pumperelements的气缸室(9)(7)产生的负压高于支撑弹簧力关闭。 第二单向阀(11)接管(7)供给的燃料的泵元件的计量; 第一单向阀(10)对从所述止回阀(11)关闭在输送阶段缸空间(9)。 活塞泵用于在内燃发动机的燃料喷射系统的高压燃料供应,尤其是在共轨喷射系统。
    • 9. 发明申请
    • PISTON PUMP FOR HIGH-PRESSURE FUEL GENERATION
    • 用于燃料热压生成的活塞泵
    • WO00039450A1
    • 2000-07-06
    • PCT/DE1999/003643
    • 1999-11-16
    • F02M59/46F02M37/04F02M39/00F02M59/06F02M59/08F04B53/10
    • F02M59/06F02M37/043F02M39/005F04B53/1005
    • High-pressure piston pump (6) with several pump elements (7) that is connected to a low-pressure flow-regulated pump (1) on the suction side. A first and a second check valve (10, 11) are connected in series to each pump element (7) on the suction side. The first check valve (10) opens against the force of a spring during the suction phase of the pump element (7) and closes during the delivery phase. The second check valve (11) opens against the force of a spring and closes assisted by the force of a spring when the fuel delivered by the pump (1) reaches pressures that are higher than the negative pressure generated in a cylinder chamber (9) of the pump element (7). The second check valve (11) regulates the amount of fuel delivered to the pump element (7). The first check valve (10) blocks the cylinder chamber (9) from the check valve (11) during the delivery phase. The piston pump ensures generation of high pressure fuel in fuel injection systems in internal combustion engines, especially in a common rail injection system.
    • 具有多个泵元件(7)的高压活塞泵(6)在吸入侧与泵(1)连接,该泵在低压下输送燃料的容积控制泵送。 每个泵元件(7)通过串联的第一和第二止回阀(10,11)在吸入侧之前。 第一止回阀(10)在泵元件(7)的吸入阶段克服弹簧力打开,并在输送阶段关闭。 第二止回阀(11)克服弹簧力而打开,并且在泵(1)供应的燃料压力下比在Pumperelement(7)的缸室(9)中产生的负压高的​​压力关闭弹簧辅助。 第二止回阀(11)接管泵元件(7)供应的燃料的计量; 第一止回阀(10)在输送阶段中抵靠止回阀(11)阻塞缸室(9)。 活塞泵用于内燃机的燃料喷射系统中的高压燃料供应,特别是在共轨喷射系统中。