VENTIL
    1.
    发明公开
    VENTIL 有权

    公开(公告)号:EP2954192A1

    公开(公告)日:2015-12-16

    申请号:EP13815445.5

    申请日:2013-12-16

    申请人: Robert Bosch GmbH

    IPC分类号: F02M63/00 F02M37/00 F02M59/46

    摘要: A valve (42), in particular an overflow valve (41), for arrangement in a recess in a housing of a high pressure pump, said valve comprising a valve housing (45) that has a valve cylinder (44), a closing piston (46) movable within said valve cylinder (44) between a closed position and an open position such that in the closed position the valve (42) is closed and in the open position the valve (42) is open, an inlet opening (47) for supplying a fluid into the interior of a cylinder chamber (56) enclosed by the valve cylinder (44), at least one outlet opening (49) for discharging the fluid introduced into the cylinder chamber (56), an elastic valve element (51), in particular a valve spring (52), which is connected to the closing piston (46) and by means of which a compressive force can be applied to the closing piston (46), said compressive force being counter to a compressive force that can be applied to the closing piston (46) by the fluid within the cylinder chamber (56) such that the closing piston (46) can be moved, by means of the compressive force applied to the closing piston (46) by the elastic valve element (51) and the fluid, between the closed position and the open position, wherein said valve housing (45) does not have, on the outside, any fastening system, in particular not a thread or bayonet connection, for axial securing in the recess in the housing of the high pressure pump.

    摘要翻译: 一种用于布置在高压泵的壳体中的凹部中的阀(42),尤其是溢流阀(41),所述阀包括阀壳体(45),所述阀壳体具有阀缸(44),关闭活塞 (46)在所述阀筒(44)内在关闭位置和打开位置之间可移动,使得在所述关闭位置中所述阀(42)关闭,并且在所述打开位置中所述阀(42)打开;进口开口(47 ),其用于将流体供应到由阀汽缸(44)所包围的汽缸室(56)的内部中;至少一个排出口(49),其用于排出引入汽缸室(56)的流体;弹性阀元件 特别是与闭合活塞(46)连接的阀簧(52),借助该阀簧能够对闭合活塞(46)施加压缩力,所述压缩力与压缩力 其可通过缸室(56)内的流体施加到关闭活塞(46)上, 借助于弹性阀元件(51)和流体施加在关闭活塞(46)上的压缩力,关闭活塞(46)可以在关闭位置和打开位置之间移动,其中所述阀壳体 )在外部不具有任何紧固系统,特别是不具有螺纹或卡口连接,用于轴向固定在高压泵的壳体中的凹部中。

    HOCHDRUCKPUMPE UND KRAFTSTOFFEINSPRITZANLAGE MIT EINER HOCHDRUCKPUMPE
    7.
    发明公开
    HOCHDRUCKPUMPE UND KRAFTSTOFFEINSPRITZANLAGE MIT EINER HOCHDRUCKPUMPE 审中-公开
    高压泵和燃油喷射用高压泵

    公开(公告)号:EP3014103A1

    公开(公告)日:2016-05-04

    申请号:EP14730155.0

    申请日:2014-06-13

    申请人: Robert Bosch GmbH

    发明人: LAMM, Marco

    摘要: A high-pressure pump (2), which is used in particular as a radial or in-line piston pump for fuel injection systems of air-compressing, auto-ignition internal combustion engines (3), comprises a first pump assembly (8), a second pump assembly (9), and a drive shaft (6), which is used to drive the first pump assembly (8) and the second pump assembly (9). Furthermore, a first inlet valve (10) for a pump working chamber (11) of the first pump assembly (8) and at least one second inlet valve (14) for a pump working chamber (15) of the second pump assembly (9) are provided. The first inlet valve (10) is designed as a controlled inlet valve (10), wherein fuel pumping by the first pump assembly (8) can be at least substantially interrupted by the first inlet valve (10) in a partial-load operating mode. The invention further relates to a fuel injection system (1) having such a high-pressure pump (2).

    SYSTEM FOR FEEDING FUEL FROM A TANK TO AN INTERNAL COMBUSTION ENGINE
    9.
    发明公开
    SYSTEM FOR FEEDING FUEL FROM A TANK TO AN INTERNAL COMBUSTION ENGINE 有权
    SYSTEM FOR燃料从油箱供应到内燃发动机

    公开(公告)号:EP2516858A1

    公开(公告)日:2012-10-31

    申请号:EP10787090.9

    申请日:2010-11-30

    申请人: Robert Bosch GmbH

    发明人: LAMM, Marco

    摘要: A system (1) for feeding fuel from a tank (2) to an internal combustion engine (3) has: - an electrically actuated pre-feed variable-flow electric pump (9); - a high-pressure piston pump (10) having a pump casing (15) and piston movement mechanism (17) housed in the pump casing (16); and - a hydraulic circuit (7) comprising a first branch (11) for connecting the tank (2) to the pre-feed pump (9), a second branch (12) for connecting the pre-feed pump (9) to the high-pressure piston pump (10) and a third branch (13) for connecting the high-pressure piston pump (10) to the internal combustion engine (3); wherein the second branch (12) is configured to branch downstream of the pre-feed pump (9) into a first channel (12a) structured for conveying part of the fuel to the intake of the high-pressure piston pump (10) and for connecting the pre-feed pump (9) directly to the intake of the high-pressure piston pump (10), and into a second channel (12b) structured for conveying part of the fuel in the casing (15) and for connecting the pre-feed pump (9) to the casing (15) making the fuel flow solely through at least one calibrated hole (27).