Sheath flow forming device and sample analyzer provided with same
    3.
    发明公开
    Sheath flow forming device and sample analyzer provided with same 有权
    装置,用于产生一个鞘流和样本分析仪,其被配置为与Selbiger

    公开(公告)号:EP1521076A1

    公开(公告)日:2005-04-06

    申请号:EP04023071.6

    申请日:2004-09-28

    发明人: Jindo, Katsuhiko

    IPC分类号: G01N15/14

    摘要: The sheath flow forming device are described that include: a container for storing sample fluid and having a supply port for supplying the sample fluid; a second container for storing sheath fluid and having a supply port for supplying the sheath fluid; a flow cell having a sample fluid inlet for receiving sample fluid supplied from the supply port of the first container, a sheath fluid inlet for receiving the sheath fluid from the supply port of the second container, and an outlet for discharging the mixture of the sheath fluid and the sample fluid; a first pump for supplying a sheath fluid to the sheath fluid inlet; a second pump for suctioning fluid within the flow cell through the outlet of the flow cell; and a first drive source for driving the first pump and second pump.

    摘要翻译: 鞘流形成装置被描述并包括:用于存储样品流体且具有用于供给样品流体的供给口的容器; 用于存储鞘流体且具有用于供给鞘液的供给口的第二容器; 具有用于接收来自所述第一容器,用于接收鞘液从第二容器的供给口的鞘流体入口的供给口供给样品液的样品流体入口的流动池,并且在出口用于排出所述护套的混合物 流体和样品流体; 第一泵供给鞘液鞘液入口; 用于抽吸通过所述流动池的出口处的流动单元内流体的第二泵; 以及用于驱动所述第一泵和第二泵中的第一驱动源。

    DUAL CHAMBER MIXING PUMP
    4.
    发明授权
    DUAL CHAMBER MIXING PUMP 有权
    混合泵具有两室

    公开(公告)号:EP2170493B1

    公开(公告)日:2011-08-24

    申请号:EP08736055.8

    申请日:2008-04-10

    IPC分类号: B01F5/12 F04B7/06

    摘要: A dual chamber mixing pump design is disclosed which allows two different sources of fluid to be combined into one mixed product fluid. The pump is divided into two chambers, the proximal chamber and the distal chamber. The chambers are defined in part by a piston having proximal and distal ends and recessed sections. The pump utilizes one common driving mechanism to axially rotate and laterally reciprocate the piston to provide continuous pumping of fluids with reduced pulsations. Each fluid enters through its own pump inlet and outlet. For mixing applications, the outlets are joined together. The flow volume per stroke of each chamber is determined by the lateral stroke of the entire piston assembly and also by the annular areas of the proximal and distal ends of the piston. The flow volume per stroke may be altered by varying the piston and shaft diameters for each chamber. This allows mixing of two fluids in any ratio or proportion desired. Alternating pulses of the two chambers provide a stream which has small segments of alternating fluid from each inlet. Such segmented streams can become more thoroughly mixed through normal flow characteristics of the downstream flow path, providing more effective mixing.

    Système de pompage à pistons délivrant des fluides avec un débit sensiblement constant
    5.
    发明公开
    Système de pompage à pistons délivrant des fluides avec un débit sensiblement constant 失效
    用于传送具有恒定流的流体置换泵系统

    公开(公告)号:EP0709572A1

    公开(公告)日:1996-05-01

    申请号:EP95402383.4

    申请日:1995-10-25

    IPC分类号: F04B11/00 F04B13/02 F04B49/06

    摘要: Le système de pompage comporte n (n≧1) modules de pompage primaires à piston ou à membrane (P1 à Pn) incluant chacun au moins une unité de pompage, connectés par l'intermédiaire de clapets uni-directionnels (V11-V1n) respectivement à n réservoirs (R1-Rn) contenant des fluides, une tête de collecte (CH) recevant les fluides délivrés par les différents modules primaires, et une unité de pompage secondaire à piston (S) pour refouler avec un débit sensiblement constant le mélange de fluides collecté dans cette tête. Les pistons sont déplacés alternativement par exemple par la translation de vis sans fin (9) entraînées par des moteurs (12). Un ensemble de pilotage (17-20) associé à des capteurs de position (AC1-ACn) et des capteurs de pression (C1 à Cn, Cs), dosent les fluides injectés et ajustent les phases, les courses des pistons et leurs vitesses pour obtenir un débit refoulé sensiblement constant. Chaque module primaire peut comporter aussi un deuxième module de pompage permettant d'obtenir également un débit constant à l'aspiration.
    Application aux installations de chromatographie en phase liquide par exemple.

    摘要翻译: 素。 活塞或隔膜的泵模块(P1-Pn)的通过的单向阀(V11-V in的),以对应于100相连。 流体贮存器(R1-Rn)中。 通过各种黄金传递的流体。 模块在一个头(CH)和混合物收集。 由秒活塞泵单元(S)以基本上恒定的速率转发。 活塞是通过例如交替地错开 由电机(12)驱动的无端螺纹螺钉(9)。 喷射的量被调整,并在活塞相,由微处理器(17)控制与接口卡(18)中风和速度,功率接口(19)和发电机(20)。

    Method for real time compensation of fluid compressibility in high pressure reciprocating pumps
    8.
    发明公开
    Method for real time compensation of fluid compressibility in high pressure reciprocating pumps 失效
    在Hochdruckkolbenpumpen的Verfahren zur Echtzeit-Kompensation derKompressibilitätvonFlüssigkeiten。

    公开(公告)号:EP0471930A1

    公开(公告)日:1992-02-26

    申请号:EP91109005.8

    申请日:1991-06-02

    IPC分类号: F04B11/00

    摘要: The invention is a method and apparatus for significantly improving the performance of a reciprocating pump by delivering the pumping fluid at a desired pressure and flow rate with minimal flow fluctuations. The compressibility of the pumping fluid directly effects volumetric flow rate and mass flow rate. The method includes the step of sensing various pump parameters related to said compressibility and adjusting the pumping speed to make appropriate accommodations. In particular, the compressibility of the pumping fluid is effected by the adiabatic heating of the pumping fluid during compression, variations in pumping fluid density, leaks in the check valves of cylinder/piston seals and the primary and secondary switching losses in the fluid flow occurring when the primary and secondary pistons reverse direction.

    摘要翻译: 本发明是一种用于通过以最小的流动波动以期望的压力和流速输送泵送流体来显着改善往复泵的性能的方法和装置。 泵送流体的压缩性直接影响体积流量和质量流量。 该方法包括检测与所述可压缩性相关的各种泵参数并调节泵送速度以适当调节的步骤。 特别地,泵送流体的压缩性通过在压缩期间泵送流体的绝热加热,泵送流体密度的变化,气缸/活塞密封件的止回阀中的泄漏以及流体流动中的主要和次要的切换损失来实现 当主活塞和次级活塞反向时。