KRAFTSTOFFEINSPRITZANLAGE FÜR EINE BRENNKRAFTMASCHINE
    11.
    发明公开
    KRAFTSTOFFEINSPRITZANLAGE FÜR EINE BRENNKRAFTMASCHINE 有权
    KRAFTSTOFFEINSPRITZANLAGEFÜREINE BRENNKRAFTMASCHINE

    公开(公告)号:EP0946830A1

    公开(公告)日:1999-10-06

    申请号:EP98954191.0

    申请日:1998-09-18

    申请人: ROBERT BOSCH GMBH

    IPC分类号: F02M43 F02M47 F02M63

    摘要: The invention relates to a fuel injection system provided with a Common Rail (2) pressure accumulator filled at high pressure and with a multifuel nozzle (3) for bifluid injection of fuel and an adjunctive liquid into an internal combustion engine. The inventive injection system comprises a first 2/2-way valve (MV1) in the injection pipe (6) between the Common Rail pressure accumulator (2) and a pressure chamber (3.5) surrounding the injector pin of the multifuel nozzle, as well as a second 2/2-way valve (MV2), the inlet of which is connected via a supply pipe (7) to the injection line (6) at a point located between the first 2/2-way valve (MV1) and the pressure chamber (3.5), and the outlet of which is connected via a discharge line (8) to the low pressure side of fuel. It is thus possible to replace the usual valves, technicaly much more expensive, i.e. the magnetically operated 3/2-way valves, by 2/2-way valves, which are more economical. The invention also enables the adjunctive liquid dosage to be transferred to a regulating valve which operates a whole series of injectors.

    摘要翻译: 本发明涉及一种燃料喷射系统,该燃料喷射系统设有以高压填充的共轨(2)蓄压器和用于将燃料和辅助液体双流注入内燃机的多燃料喷嘴(3)。 本发明的喷射系统包括在共轨压力储存器(2)和多燃料喷嘴的喷射器销周围的压力室(3.5)之间的喷射管(6)中的第一2/2换向阀(MV1) 作为第二个二位二通阀(MV2),其入口在位于第一二位二通阀(MV1)与第二二位二通阀(MV1)之间的点处通过供给管(7)与注入管线(6) 压力室(3.5),并且其出口通过排出管线(8)连接到燃料的低压侧。 因此可以用更为经济的二位二通换向阀代替技术上更加昂贵的通用阀,即磁操作的2/2换向阀。 本发明还能够将辅助液体剂量转移到操作整个系列喷射器的调节阀。

    KOLBENPUMPE
    12.
    发明授权

    公开(公告)号:EP0712464B1

    公开(公告)日:1997-08-06

    申请号:EP95920733.3

    申请日:1995-05-27

    申请人: ROBERT BOSCH GMBH

    IPC分类号: F04B1/04 F04B9/06 F04B9/04

    摘要: Proposed is a piston pump which is intended for the provision of fuel at high pressure, in particular petrol with low self-lubricating characteristics, a cam (12) driven to rotate being fitted as the pump-piston actuator in order to avoid wear on the drive side, the drive motion being imparted to the pump piston (38) by the cam by means of a flexible transmission element (53).

    摘要翻译: 提出了一种用于提供高压燃料的活塞泵,特别是具有低自润滑特性的汽油,驱动旋转的凸轮(12)作为泵活塞致动器安装,以避免磨损 所述驱动运动由所述凸轮通过柔性传动元件(53)施加到所述泵活塞(38)。

    ZWEISTOFFDÜSE ZUR EINSPRITZUNG VON KRAFTSTOFF UND EINER ZUSATZFLÜSSIGKEIT
    15.
    发明授权
    ZWEISTOFFDÜSE ZUR EINSPRITZUNG VON KRAFTSTOFF UND EINER ZUSATZFLÜSSIGKEIT 失效
    双流体喷嘴喷射燃料和一个额外的流体

    公开(公告)号:EP0954695B1

    公开(公告)日:2003-05-21

    申请号:EP98943685.2

    申请日:1998-07-14

    申请人: ROBERT BOSCH GMBH

    IPC分类号: F02M43/04

    摘要: The invention relates to a dual nozzle (3) for injecting fuel and an additional fluid into a combustion chamber of an internal combustion engine, comprising a nozzle body (3.0) which has at least one admission bore (3.2) for supplying fuel into the dual nozzle, said fuel being at high pressure, and nozzle bores (3.8) for injecting fuel from the dual nozzle into the combustion chamber. The invention is characterised in that a preferably metal jacket (7) is arranged around the nozzle body. Said jacket (7) surrounds a hollow cavity (8) bordering at least the outer surface of the nozzle body, especially running around the nozzle body, for receiving an additional fluid, and in that a delivery line (5) for delivering the pressurised additional fluid to the hollow cavity and one or several injection nozzles for injecting additional fluid from the hollow cavity into the combustion chamber are provided. The fuel and the additional fluid are injected strictly separately so that it is impossible for the two fluids to mix before they reach the combustion chamber. The nozzle body and the especially the area of the nozzle dome are cooled by the additional fluid to be injected being guided outside which prevents the nozzle bores from coking. Only one magnetic valve is required in addition for measuring the quantity of fuel to be injected when using the inventive dual nozzle.

    KRAFTSTOFFEINSPRITZANLAGE FÜR EINE BRENNKRAFTMASCHINE
    16.
    发明公开
    KRAFTSTOFFEINSPRITZANLAGE FÜR EINE BRENNKRAFTMASCHINE 失效
    KRAFTSTOFFEINSPRITZANLAGEFÜREINE BRENNKRAFTMASCHINE

    公开(公告)号:EP0946829A1

    公开(公告)日:1999-10-06

    申请号:EP98942493.0

    申请日:1998-07-06

    申请人: ROBERT BOSCH GMBH

    IPC分类号: F02M25 F02M43 F02M47 F02B3 F02M63

    摘要: A fuel injection system with a common rail pressure accumulator (2) filled with fuel under high pressure and a binary nozzle (3) for injecting two fluids, a fluid fuel and an additional liquid, into an internal combustion engine, comprises a first 2/2-port valve (MV1) arranged in the injection line (6) between the common rail pressure accumulator (2) and a pressure chamber (3.5) that surrounds the needle (3.1) of the binary nozzle (3), and also a second 2/2-port valve (MV2) whose inlet is connected through a supply line (7) to the injection line (6) at a point located between the first 2/2-port valve (MV1) and the pressure chamber (3.5), and whose outlet is connected through a discharge line (8) to the fuel low pressure side. This makes it possible to replace the otherwise common, considerably more complex 3/2-port magnetic control valves by more cost-effective 2/2-port valves. At the same time, this makes it possible to use a single metering valve which actuates a whole group of injectors for metering the additional liquid.

    摘要翻译: 具有在高压下充满燃料的共轨压力储存器(2)和用于将两种流体(流体燃料和附加液体)喷射到内燃机中的二元喷嘴(3)的燃料喷射系统包括第一2 / 布置在共轨压力存储器(2)和围绕二元喷嘴(3)的针(3.1)的压力室(3.5)之间的喷射管路(6)中的二通阀(MV1) (MV1)和压力室(3.5)之间的一个位置处的进口通过供应管线(7)连接到注入管线(6)的二位二通阀(MV2) 并且其出口通过排放管线(8)连接到燃料低压侧。 这使得可以用更具成本效益的2/2通阀代替其他常见的,相当复杂的2/2口磁性控制阀。 同时,这使得可以使用单个计量阀来驱动整组喷射器以计量额外的液体。

    ELEKTROHYDRAULISCHE STELLEINRICHTUNG
    18.
    发明公开
    ELEKTROHYDRAULISCHE STELLEINRICHTUNG 失效
    电液停车设施。

    公开(公告)号:EP0653014A1

    公开(公告)日:1995-05-17

    申请号:EP93914613.0

    申请日:1993-07-08

    申请人: ROBERT BOSCH GMBH

    IPC分类号: F01L1 F02D13

    CPC分类号: F01L1/34

    摘要: The electro-hydraulic adjusting device for actuating a device for moving at least one camshaft of an internal combustion engine in relation to its crankshaft has two differential pistons (42, 12), each of which serves to move a camshaft (inlet or outlet). A pump applies pressure to the small effective piston area (14, 40) of the two differential pistons (42, 12). To the pressure chambers (11, 44) at the larger effective piston area is allocated an independent pressure control valve (21, 46; 60) via which the pressure in said pressure chamber can be controlled independently of the other differential piston.