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    • 28. 发明申请
    • METERING DEVICE FOR LIQUID REDUCING AGENT
    • 用于液体还原剂的计量装置
    • US20100319326A1
    • 2010-12-23
    • US12521411
    • 2007-11-15
    • Rainer HaebererMatthias HornHartmunt LuedersLeopold Bernegger
    • Rainer HaebererMatthias HornHartmunt LuedersLeopold Bernegger
    • F01N3/00
    • F01N3/2066F01N11/00F01N2550/05F01N2610/02F01N2610/08F01N2610/14F01N2610/1406F01N2610/1493Y02T10/24Y02T10/47
    • The invention relates to a metering device for introducing liquid reducing agent into an exhaust gas pipe. The metering device has a working tank with contents, a delivery unit which is connected to the working tank and the delivery direction of which can be reversed, and a metering valve which is connected to the delivery unit. The metering valve is supplied with contents by the delivery unit and is designed to dispense the tank contents in a discharge direction. The metering valve is designed and connected to the delivery unit in such a way that the delivery unit establishes a negative pressure between the delivery unit and the metering valve when the delivery direction is reversed. The negative pressure causes gas to be drawn off through the metering valve against the discharge direction. The invention also relates to a method for operating a metering device for introducing liquid reducing agent into an exhaust gas tract. The method has the steps of providing a delivery unit that is connected to a metering valve and to a working tank, and discharging liquid reducing agent via a metering valve in a discharge direction. The method further has the step of emptying the metering valve by drawing gas into an emptying flow direction, which is the opposite direction from the discharge direction, achieved by operating the delivery unit in the opposite direction to that of the delivery direction.
    • 本发明涉及一种用于将液体还原剂引入排气管的计量装置。 计量装置具有带有内容物的工作罐,输送单元连接到工作罐并且其输送方向可以反向;以及计量阀,其连接到输送单元。 计量阀由输送单元供应内容物,并设计成在排放方向上分配罐内容物。 计量阀被设计并连接到输送单元,使得输送单元在输送方向相反时在输送单元和计量阀之间建立负压。 负压使得气体通过计量阀排出排出方向。 本发明还涉及一种用于操作用于将液体还原剂引入废气道的计量装置的方法。 该方法具有以下步骤:提供连接到计量阀和工作罐的输送单元,并且经由计量阀沿排出方向排出液体还原剂。 该方法还具有通过将气体吸入与排出方向相反的排出流动方向来排空计量阀的步骤,其通过沿与输送方向相反的方向操作输送单元而实现。
    • 30. 发明授权
    • Electromagnetic valve for controlling an injection valve of an internal combustion engine
    • 用于控制内燃机的喷射阀的电磁阀
    • US06820858B2
    • 2004-11-23
    • US10168671
    • 2002-10-24
    • Rainer HaebererMatthias HornAndreas RettichRobert Hajnovic
    • Rainer HaebererMatthias HornAndreas RettichRobert Hajnovic
    • F16K3102
    • F02M47/027F02M63/0017F02M63/0022F02M63/0036F02M63/022F02M2200/304F02M2547/003
    • A solenoid valve for controlling an injection valve of an internal combustion engine is provided, including an electromagnet, a movable armature, a control valve member moved with the armature and cooperating with a valve seat for opening and closing a fuel discharge channel of a control pressure chamber of the injection valve, and a sliding piece guiding the armature, which is positioned together with the armature and the control valve member in an armature chamber. For reducing the bounce of the armature, the sliding piece subdivides the armature chamber into a pressure relief chamber connected to a fuel low-pressure connection and an hydraulic damping chamber, into which a fuel discharge channel opens. The damping chamber may be pressure-relieved to a pressure relief chamber via at least one connecting channel provided with a throttle, the speed of the control valve member being lowered during the closing of solenoid valve, before impact on valve seat, by a fuel pressure cushion acting upon the control valve member in the damping chamber.
    • 提供了一种用于控制内燃机的喷射阀的电磁阀,包括电磁体,可动电枢,与电枢一起移动并与阀座配合的控制阀构件,用于打开和关闭控制压力的燃料排放通道 喷射阀的腔室以及引导电枢的滑动件,其与电枢和控制阀构件一起定位在衔铁室中。 为了减少电枢的跳动,滑动件将电枢室细分成与燃料低压连接和液压阻尼室连接的减压室,燃料排放通道打开。 阻尼室可以经由设置有节流阀的至少一个连接通道被压力释放到减压室,在电磁阀关闭期间,控制阀构件的速度在阀座冲击之前由燃料压力 缓冲器作用在阻尼室中的控制阀构件上。