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    HUBGESTEUERTES VENTIL ALS KRAFTSTOFF-ZUMESSEINRICHTUNG EINES EINSPRITZSYSTEMS FÜR BRENNKRAFTMASCHINEN
    4.
    发明授权
    HUBGESTEUERTES VENTIL ALS KRAFTSTOFF-ZUMESSEINRICHTUNG EINES EINSPRITZSYSTEMS FÜR BRENNKRAFTMASCHINEN 有权
    用于内燃发动机的计量装置的行程阀燃油喷射系统

    公开(公告)号：EP1240424B1

    公开(公告)日：2004-10-20

    申请号：EP01998729.6

    申请日：2001-11-16

    申请人： ROBERT BOSCH GMBH

    发明人： DUTT, Andreas

    IPC分类号： F02M59/46 ,  F02M59/36 ,  F02M53/00 ,  F02M41/14

    CPC分类号： F02M63/0045 ,  F02M59/205 ,  F02M59/366 ,  F02M59/466 ,  F02M63/0007 ,  F02M63/0017

    摘要： The invention relates to a stroke-controlled valve which is used as a fuel metering device of an injection system for internal combustion engines. Said valve has a valve needle (11) which can be actuated axially against the resistance of a spring (24), which is arranged in a graduated, coaxial recess (13) in a valve body (10) and which interacts with a valve seat (17) which is configured in the recess (13) of the valve body (10), hereby controlling the fuel injection process. The valve also comprises a high-pressure area (18) which is connected to an allocated injection nozzle and which is located in front of the valve seat (17), a low-pressure area (28) which is located behind the valve seat and which opens out into the fuel return passage (30); and a low-pressure compensating piston (22) which coaxially adjoins the valve (16, 17) and which is solidly connected to the valve needle. The invention is characterised in that a first control edge (39 or 42) is configured on the low-pressure compensating piston (22). Said control edge interacts with a second control edge (40 or 43) on the valve body recess (13) in the area of the fuel return passage (45, 30) or (48, 30) in such a way that a throttle cross-section (38, 38a or 46, 44a) that is dependent on the valve stroke (41) is formed between the two control edges (39, 40 or 42, 43).

    PUMPENVORRICHTUNG
    5.
    发明公开
    PUMPENVORRICHTUNG 审中-公开

    公开(公告)号：EP1084343A1

    公开(公告)日：2001-03-21

    申请号：EP99927875.7

    申请日：1999-06-04

    申请人： Heimberg, Wolfgang, Dr.

    发明人： Heimberg, Wolfgang, Dr.

    IPC分类号： F02M51/04 ,  F02M59/10 ,  F02M59/20 ,  F02M69/12 ,  F02M45/00 ,  F04B17/04

    CPC分类号： F02M59/22 ,  F02M45/00 ,  F02M51/04 ,  F02M59/107 ,  F02M59/20 ,  F02M59/205 ,  F02M69/12 ,  F04B13/00 ,  F04B17/042 ,  F04B2205/063

    摘要： The invention relates to a pumping device comprising a pump assembly (4) which is configured as a reciprocating piston pump. The pump displaces fluid by means of a reciprocating piston (6, 7). The inventive pumping device also comprises a stop element (17, 18) which limits the delivery stroke of the reciprocating piston (6, 7) in the direction of delivery (13), and has a dosing device (5) which is driven electrically and independent of the pump assembly (4). Said dosing device is provided for determining the quantity of fluid to be injected by displacing the reciprocating piston (6, 7) with regard to the stop element (17, 18) around a determined, variable accumulating stroke which corresponds to the delivery stroke. Using the inventive pumping device, fluid can be precisely dosed during considerable throughput. The inventive pumping device can be used both during applications which required a high dosing precision as well as for a fuel injection device.

    KRAFTSTOFFVERSORGUNGSEINRICHTUNG EINES KRAFTSTOFFEINSPRITZSYSTEMS EINER BRENNKRAFTMASCHINE SOWIE ÜBERSTRÖMVENTIL DAZU
    9.
    发明公开
    KRAFTSTOFFVERSORGUNGSEINRICHTUNG EINES KRAFTSTOFFEINSPRITZSYSTEMS EINER BRENNKRAFTMASCHINE SOWIE ÜBERSTRÖMVENTIL DAZU 有权
    内燃发动机和旁路的燃料喷射系统对燃料补给装置

    公开(公告)号：EP3084200A1

    公开(公告)日：2016-10-26

    申请号：EP14808944.4

    申请日：2014-12-03

    申请人： Robert Bosch GmbH

    发明人： MAGER, Florian

    IPC分类号： F02M37/00 ,  F02M63/02 ,  F02M59/20

    CPC分类号： F02M37/0029 ,  F02M37/0052 ,  F02M59/205 ,  F02M63/0225

    摘要： The invention proposes a fuel supply device of a fuel injection system of an internal combustion engine, and an embodiment of the overflow valve (30) for the same. The fuel supply device has a high-pressure pump (18) in addition to the overflow valve (30). The overflow valve (30) conducts a nonrequired fuel quantity from the high-pressure pump (18) into a spill line (28). The overflow valve (30) has a spring chamber (32) which is hydraulically connected to the spill line (28). For the hydraulic connection of the spring chamber (32) to the spill line (28), a discharge line (29) is provided which is hydraulically connected to a suction side (41) of a Venturi nozzle (40).