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    Fluid delivery system
    9.
    发明公开
    Fluid delivery system 有权
    Fluidzufuhrsystem

    公开(公告)号：EP2017444A3

    公开(公告)日：2015-07-22

    申请号：EP08157743.9

    申请日：2008-06-06

    Applicant: Delphi International Operations Luxembourg S.à r.l.

    Inventor： Dingle, Philip

    IPC: F01N9/00 ,  F01N11/00 ,  G05D7/06 ,  F04B17/04 ,  F04B49/06 ,  F04B35/04 ,  G01F9/00 ,  G01F23/00 ,  F01N3/20

    CPC classification number: F01N11/00 ,  F01N3/2066 ,  F01N9/005 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2610/1433 ,  F01N2610/1453 ,  F01N2900/0421 ,  F01N2900/0422 ,  F01N2900/1812 ,  F01N2900/1814 ,  F02D41/20 ,  F02D41/221 ,  F02D2041/2055 ,  F02D2041/2058 ,  F04B17/044 ,  F04B49/065 ,  F04B2201/0207 ,  F04B2201/0209 ,  G01F11/021 ,  G01F11/029 ,  G01F22/00 ,  G01F23/00 ,  G01F25/0092 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

    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 compressor controller
    10.
    发明公开
    Linear compressor controller 有权
    Steuerungsvorrichtungfüreinen linear angetriebenen Verdichter

    公开(公告)号：EP1715184A1

    公开(公告)日：2006-10-25

    申请号：EP06006967.1

    申请日：2006-03-31

    Applicant: Fisher & Paykel Appliances Ltd.

    Inventor： Tian, Zhuang ,  Boyd, John H. Jr

    IPC: F04B35/04 ,  F04B17/04 ,  F04B31/00 ,  F02B71/00

    CPC classification number: F04B35/045 ,  F04B2201/0202 ,  F04B2201/0206 ,  F04B2201/0209

    Abstract: A free-piston linear compressor (1) controlled to achieve high volumetric efficiency by a controller including an algorithm (116) for ramping up input power until piston-cylinder head collisions are detected using a detection algorithm (117/118) which then decrements power input whereupon input power is again ramped up by algorithm (116). Non-damaging low energy collisions are achieved by the controller including a perturbation algorithm (119) which perturbates the input power ramp with periodic transient pulses of power to ensure piston collisions are provoked during the transient power pulses.

    Abstract translation: 控制的自由活塞线性压缩机（1）通过控制器实现高体积效率，所述控制器包括用于使用检测算法（117/118）检测到活塞 - 气缸盖碰撞之前的输入功率升高的算法（116） 输入，由此输入功率再次通过算法（116）升高。 控制器实现了非破坏性低能量碰撞，包括扰动算法（119），该扰动算法利用周期性的瞬时电力脉冲扰乱输入功率斜坡，以确保在瞬态功率脉冲期间引发活塞碰撞。

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