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124 条记录 (耗时 0.022 秒)

    EINSPRITZEINRICHTUNG
    3.
    发明公开
    EINSPRITZEINRICHTUNG 审中-公开

    公开(公告)号：EP3155253A1

    公开(公告)日：2017-04-19

    申请号：EP15726097.7

    申请日：2015-05-27

    申请人： Robert Bosch GmbH

    发明人： HAEBERER, Rainer ,  STOEBERL, Thorsten ,  WELTING, Dirk

    IPC分类号： F02M61/16 ,  F02M61/08 ,  F02M61/18 ,  B01D53/94 ,  F01N3/20

    CPC分类号： F01N3/2066 ,  F01N2610/02 ,  F01N2610/1453 ,  Y02T10/24

    摘要： The invention relates to an injection device (1), in particular for an exhaust aftertreatment system of an internal combustion engine, comprising a pressure-controlled, outward-opening fuel injection valve (2) that includes an axially movable valve piston (6) which penetrates a flow opening (7) in a valve body (5) and one end of which has a valve tip (9), further comprising a valve seat (8) associated with the flow opening (7), and at least one spring element (11) which urges the valve piston (6) comprising the valve tip (9) against the valve seat (8) so that the flow opening (7) is closed; the valve tip (9) is axially movable inside a flow chamber (15) formed by the valve body (5) and by an injection orifice disk (14) that includes a plurality of injection ports (19).

    摘要翻译： 本发明涉及一种特别是用于内燃机排气后处理系统的注射装置（1），其包括压力控制的向外开启的燃料喷射阀（2），其包括可轴向移动的阀活塞（6），该活塞 穿透阀体（5）中的流动开口（7）并且其一端具有阀尖（9），还包括与流动开口（7）相关联的阀座（8），以及至少一个弹簧元件 （11），其将包括阀头（9）的阀活塞（6）压靠在阀座（8）上，使得流动开口（7）关闭; 阀尖（9）可在由阀体（5）形成的流动室（15）和包括多个喷射口（19）的喷射孔盘（14）内轴向移动。

    VORRATSTANK UND FUNKTIONSEINHEIT HIERZU
    6.
    发明公开
    VORRATSTANK UND FUNKTIONSEINHEIT HIERZU 有权
    储罐与功能单元的THEREFOR

    公开(公告)号：EP2707579A1

    公开(公告)日：2014-03-19

    申请号：EP12711852.9

    申请日：2012-03-26

    申请人： Robert Bosch GmbH

    发明人： HAEBERER, Rainer ,  LOLAS, Georgios

    IPC分类号： F01N3/20

    CPC分类号： F01N3/2066 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/1406 ,  F01N2610/1433 ,  F01N2610/1466 ,  Y02A50/2325 ,  Y02T10/24

    摘要： The invention relates to a functional unit (20) of a supply tank (19) of an injection device (15) for a liquid reducing agent in an exhaust gas post-treatment device (3) comprising a catalyst (11) for selective catalytic reduction (SCR). The functional unit (20) is essentially equipped to convey the reducing agent from the supply tank (19) in a targeted manner and to prevent the reducing agent from freezing at least in the region of the functional unit (20) at extremely low temperatures. The functional unit (20) is designed such that it is not damaged when the reducing agent freezes.

    VORRICHTUNG ZUR BELÜFTUNG EINES ABGASNACHBEHANDLUNGSSYSTEMS
    7.
    发明公开
    VORRICHTUNG ZUR BELÜFTUNG EINES ABGASNACHBEHANDLUNGSSYSTEMS 审中-公开
    DEVICE FOR风扇后处理系统

    公开(公告)号：EP2580437A1

    公开(公告)日：2013-04-17

    申请号：EP11721762.0

    申请日：2011-05-19

    申请人： Robert Bosch GmbH

    发明人： HAEBERER, Rainer

    IPC分类号： F01N3/20

    CPC分类号： F01N3/2066 ,  F01N2610/02 ,  F01N2610/14 ,  Y02T10/24

    摘要： The invention relates to a device for ventilating an exhaust gas after-treatment system (10), with which a freezable operating/auxiliary agent, in particular a reduction agent, is metered into an exhaust tract (12) of an internal combustion engine. A hydraulic spring accumulator (60, 66, 68) stores energy during operation with system pressure. Upon shut-down of the internal combustion engine, said accumulator releases the energy without current such that a vacuum for suctioning the operating/auxiliary agent out of components of the exhaust gas after-treatment system is generated.

    VORRICHTUNG ZUR REDUKTION VON SCHADSTOFFEN IM ABGASSTROM EINES VERBRENNUNGSMOTORS
    8.
    发明公开
    VORRICHTUNG ZUR REDUKTION VON SCHADSTOFFEN IM ABGASSTROM EINES VERBRENNUNGSMOTORS 有权
    设备，用于燃烧发动机的排气功率减少污染物

    公开(公告)号：EP2569522A1

    公开(公告)日：2013-03-20

    申请号：EP11716397.2

    申请日：2011-04-18

    申请人： Robert Bosch GmbH

    发明人： HAEBERER, Rainer

    IPC分类号： F01N3/20

    CPC分类号： F01N3/2066 ,  F01N2610/14 ,  F01N2610/1426 ,  F01N2610/144 ,  F01N2610/1493 ,  Y02A50/2325 ,  Y02T10/24 ,  Y10T137/85978

    摘要： The invention relates to a device (40) for reducing pollutants, in particular nitrogen oxides, in an exhaust gas flow of an internal combustion engine, comprising a reducing agent (46), in particular a urea-water solution, which is stored in a storage tank (42), a metering module, in particular a nozzle (68), for injecting the reducing agent (46) into the exhaust gas flow, and a pump (56, 100) for delivering the reducing agent (46) from a suction point (62) in the storage tank (42) to the metering module via lines (58, 66). According to the invention, the pump (56, 100) lies beneath a reducing agent level (44) in the storage tank (42), and a non-return valve is provided. As a result of the non-return valve, the device (40) is prevented from refilling with the reducing agent (46) after the reducing agent (46) is completely sucked back from the device (40) after shutting off the internal combustion engine, in particular after extended idle times of the internal combustion engine. In a first embodiment, the non-return valve is a filter (64) that is formed with a plurality of screens (80, 82, 84, 86) which are connected one behind the other, which have a special microstructure, and which are formed with a plastic material. In the case of a second embodiment, the non-return valve is formed with a hermetically sealing valve (158) which is heavily preloaded by a spring force in particular and which is directly integrated into the pump (100) that is necessary for delivering the reducing agent (46) in the device (40).

    ENTLÜFTUNGSELEMENT FÜR VORRATSTANK
    9.
    发明公开
    ENTLÜFTUNGSELEMENT FÜR VORRATSTANK 有权
    泄放元件FOR储罐

    公开(公告)号：EP2510203A1

    公开(公告)日：2012-10-17

    申请号：EP10767995.3

    申请日：2010-10-08

    申请人： Robert Bosch GmbH

    发明人： HAEBERER, Rainer

    IPC分类号： F01N3/20

    CPC分类号： F01N3/2066 ,  F01N2610/02 ,  F01N2610/14 ,  F01N2610/1406 ,  F01N2610/1466 ,  Y02T10/24

    摘要： The invention relates to a storage tank (10) for receiving a medium (12) that can be frozen, in particular a reducing agent, comprising a ventilation unit (34, 36; 72) and a crucible-shaped container (22) introduced in the storage tank (10). An air chamber (50) in the crucible-shaped container (22) is connected via a ventilation line (60) or an overflow opening (40) to an air chamber (48) of the storage tank (10), which is ventilated via a ventilation unit (34, 36; 72).