Fluid delivery system
    51.
    发明公开
    Fluid delivery system 有权
    VerfahrenfüreinFluidzuführsystem

    公开(公告)号:EP2017444A2

    公开(公告)日:2009-01-21

    申请号:EP08157743.9

    申请日:2008-06-06

    Inventor: Dingle, Philip

    Abstract: A fluid delivery system for delivering a metered dose of fluid from a supply tank (28) to a downstream chamber or vessel (10), comprises a pump apparatus (20) comprising a pump plunger (32) which is operable to perform a pumping stroke under the control of an electromagnetic actuator (36), including a solenoid (36a), to effect delivery of the fluid and a control unit (24) for supplying an input signal (58) to the solenoid (36a) to initiate a current flow to the solenoid (36a) and thereby initiate movement of the pump plunger (32). An electronic device (54) provides an output signal to indicate that movement of the pump plunger has stopped at the end of the pumping stroke, and a timer determines a time difference between the input signal (58) being supplied to the solenoid (36a) and the output signal being output by the electronic device (54). A processor (26) compares the time difference with a predetermined time difference and determines, as a result of the comparison, whether or not the pump plunger (32) has performed a valid pumping stroke in which an intended volume of fluid is displaced and which may therefore be used in a totalized flow calculation.

    Abstract translation: 用于将计量剂量的流体从供应罐(28)输送到下游室或容器(10)的流体输送系统包括泵装置(20),泵装置(20)包括泵柱塞(32),其可操作以执行泵送冲程 在包括螺线管(36a)的电磁致动器(36)的控制下,实现流体输送和用于向螺线管(36a)提供输入信号(58)以启动电流的控制单元(24) (36a),从而启动泵柱塞(32)的运动。 电子设备(54)提供输出信号以指示泵柱塞的运动在泵送冲程结束时已经停止,并且定时器确定提供给螺线管(36a)的输入信号(58)之间的时间差, 并且所述输出信号由所述电子设备(54)输出。 处理器(26)将时间差与预定时间差进行比较,并且作为比较的结果确定泵柱塞(32)是否已经执行了有效的泵送冲程,其中期望体积的流体被移位,以及哪个 因此可用于总计流量计算。

    LINEAR MOTOR CONTROLLER
    52.
    发明授权
    LINEAR MOTOR CONTROLLER 有权
    线性电机控制器

    公开(公告)号:EP1446579B1

    公开(公告)日:2005-10-12

    申请号:EP02803577.2

    申请日:2002-11-07

    CPC classification number: F04B35/045 F04B2201/0209

    Abstract: A free piston gas compressor comprising a cylinder (9), a piston (11) reciprocable within the cylinder (9) and a reciprocating linear electric motor derivably coupled to the piston having at least one excitation winding (1, 2). A measure of the reciprocation time of the piston (11) is obtained, any change in the reciprocation time is detected and the power input to said excitation winding (1, 2) is adjusted in response to any detected change in reciprocation time.

    Abstract translation: 一种自由活塞式气体压缩机,包括气缸(9),在气缸(9)内可往复运动的活塞(11)和可导出耦合到具有至少一个励磁绕组(1,2)的活塞的往复式线性电动机。 获得活塞(11)的往复运动时间的量度,检测往复运动时间的任何变化,并响应于检测到的往复运动时间的任何变化来调整输入到所述励磁绕组(1,2)的功率。

    Method for driving compressor
    57.
    发明专利
    Method for driving compressor 有权
    驱动压缩机的方法

    公开(公告)号:JP2007107523A

    公开(公告)日:2007-04-26

    申请号:JP2006276899

    申请日:2006-10-10

    Abstract: PROBLEM TO BE SOLVED: To provide a method for driving a compressor starting the compressor without generating overcurrent and easily starting the compressor even if predetermined pressure exists in a motor. SOLUTION: This invention relates to the method for driving the compressor. The method for driving the compressor including a sensor-less motor having a rotary shaft connected to a rotor, a piston executing compression stroke and suction stroke between a top dead center and a bottom dead center, and a crank part connecting the rotary shaft and the piston, includes a forcible alignment stage positioning the rotor at a predetermined start position in the suction stroke of the piston and a stage accelerating rotation of the forcibly aligned rotor. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于驱动压缩机启动压缩机的方法,而不产生过电流并且即使在电动机中存在预定压力也容易启动压缩机。 解决方案:本发明涉及用于驱动压缩机的方法。 驱动压缩机的方法包括具有与转子连接的旋转轴的无传感器电动机,执行压缩冲程的活塞和上止点与下止点之间的吸入冲程的方法,以及将旋转轴和 活塞包括强制对准台,其将转子定位在活塞的吸入行程中的预定起始位置,以及加速被强制对准的转子旋转的平台。 版权所有(C)2007,JPO&INPIT

    Method for operating a reagent metering system, device for carrying out the method, computer program and computer program product
    58.
    发明授权
    Method for operating a reagent metering system, device for carrying out the method, computer program and computer program product 有权
    用于操作试剂计量系统的方法,用于执行该方法的装置,计算机程序和计算机程序产品

    公开(公告)号:US09574477B1

    公开(公告)日:2017-02-21

    申请号:US15251109

    申请日:2016-08-30

    Inventor: Matthias Burger

    Abstract: A method for operating a reagent metering system which meters a reagent into an exhaust duct of an internal combustion engine upstream of an SCR catalytic converter, in which, after the metering operation is ended, at least part of the reagent metering system is emptied by back-suction by means of a reciprocating pump. The procedure according to the invention is distinguished in that during the back-suction, a stop determination determines the flight time of a reciprocating piston of the reciprocating pump from a starting time as far as the stop time, in that a comparator compares the flight time determined with a flight time threshold value, and in that the activation power of the reciprocating pump is reduced if the flight time determined is less than the flight time threshold value.

    Abstract translation: 一种用于操作试剂计量系统的方法,该试剂计量系统将试剂计量​​到SCR催化转化器上游的内燃机的排气管道中,其中在计量操作结束之后,至少部分试剂计量系统被倒空 通过往复泵进行。 根据本发明的过程的区别在于,在背吸时,停止确定确定往复泵的往复活塞从起动时间到停止时间的飞行时间,因为比较器比较飞行时间 由飞行时间阈值确定,并且如果确定的飞行时间小于飞行时间阈值,则往复泵的启动功率降低。

    APPARATUS FOR CARRYING OUT CHROMATOGRAPHY
    59.
    发明申请
    APPARATUS FOR CARRYING OUT CHROMATOGRAPHY 审中-公开
    用于执行色谱的设备

    公开(公告)号:US20130206656A1

    公开(公告)日:2013-08-15

    申请号:US13817164

    申请日:2011-07-29

    Abstract: Apparatus for carrying out chromatography, preferably liquid process chromatography, in particular for industrial applications, using in each case at least one positive displacement pump, provided with a drive, for feeding product and eluent (mobile phase) onto at least one separation column, wherein the drive of each positive displacement pump is a highly dynamic drive, which is equipped with an integrated transducer system for capturing the distance/time date, which are convertible into corresponding position-regulated travel commands using connected superordinate movement control/regulation.

    Abstract translation: 用于进行色谱的装置,优选液体过程色谱法,特别是用于工业应用,在每种情况下使用至少一个带有驱动器的容积式泵,用于将产物和洗脱液(流动相)供入到至少一个分离塔上,其中 每个正排量泵的驱动是一种高度动态的驱动装置,它配备有一个集成的传感器系统,用于捕获距离/时间日期,可以使用连接的上级运动控制/调节将其转换成相应的位置调节行程命令。

    Method of controlling a reciprocating linear motor
    60.
    发明申请
    Method of controlling a reciprocating linear motor 有权
    控制往复式线性电机的方法

    公开(公告)号:US20040263005A1

    公开(公告)日:2004-12-30

    申请号:US10898808

    申请日:2004-07-26

    CPC classification number: F04B35/045 F04B2201/0209

    Abstract: A free piston gas compressor comprising a cylinder, a piston reciprocable within the cylinder and a reciprocating linear electric motor derivably coupled to the piston having at least one excitation winding. A measure of the reciprocation time of the piston is obtained, any change in the reciprocation time is detected and the power input to said excitation winding is adjusted in response to any detected change in reciprocation time.

    Abstract translation: 一种自由活塞气体压缩机,包括气缸,可在气缸内往复运动的活塞和可移动的线性电动马达,该往复式线性电动机可传导地联接到具有至少一个励磁绕组的活塞。 获得活塞的往复运动时间的量度,检测往复运动时间的任何变化,并响应于检测到的往复运动时间的变化来调整输入到所述励磁绕组的功率。

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