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公开(公告)号：US20080296209A1
公开(公告)日：2008-12-04
申请号：US12037111
申请日：2008-02-26
申请人： Kunihiko Takao , Hironori Kaji , Masahito Ito
发明人： Kunihiko Takao , Hironori Kaji , Masahito Ito
CPC分类号： G01N30/32 , B01D15/14 , B01D15/166 , F04B11/0058 , F04B11/0083 , F04B13/00 , F04B13/02 , F04B53/06 , G01N2030/326
摘要： This liquid feeding system has the first and second pumps each of which is provided with a plunger. Liquid sucked through each of the pump suction ports is discharged out of the discharging port through the first pump and/or second pump. Under the starting operation mode, the second pump is stopped and only the first pump is operated. When the discharging pressure at the discharging port reaches up to a predetermined value, the starting operation mode is changed over to the normal operation mode. Under the normal operation mode, the first pump is stopped and only the second pump is operated.
摘要翻译： 该液体供给系统具有第一和第二泵，每个泵设有柱塞。 通过每个泵吸入口吸入的液体通过第一泵和/或第二泵排出排出口。 在启动运行模式下，第二个泵停止运转，只有第一个泵运转。 当排出口的排出压力达到预定值时，启动操作模式转换到正常操作模式。 在正常运行模式下，第一个泵停止运转，只有第二个泵运转。
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公开(公告)号：US07354255B1
公开(公告)日：2008-04-08
申请号：US11063677
申请日：2005-02-23
申请人： Grigori Lishanski , Oleg Lishanski
发明人： Grigori Lishanski , Oleg Lishanski
IPC分类号： F04B7/04
CPC分类号： F04B11/0083
摘要： The present invention is an improved vibratory pumping mechanism that increases the efficiency of utilization of the vibratory motion within a mechanism. More specifically, the mechanism includes a central chamber within which a piston is oscillated to draw fluid into the chamber and expel fluid from within the chamber outwardly through a nozzle connected to the chamber. The chamber includes a pressure tube connected to a rearward end of the chamber and to a secondary chamber positioned around and in fluid communication with the chamber. The pressure tube allows the negative pressure generated by the motion of the piston in either direction to be utilized in preventing any fluid from being directed out of the mechanism in a direction other than through the nozzle, thereby increasing the efficiency of the pump.
摘要翻译： 本发明是一种改进的振动泵送机构，其提高机构内的振动运动的利用效率。 更具体地说，该机构包括一个中心腔室，活塞在其中摆动以将流体吸入腔室，并通过连接到该腔室的喷嘴向外排出流体。 该腔室包括连接到腔室的后端的压力管和位于腔室周围并与腔体流体连通的次级腔室。 压力管允许通过活塞在任一方向的运动产生的负压用于防止任何流体沿除了喷嘴之外的方向被引导出机构，从而提高泵的效率。
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公开(公告)号：US20050023205A1
公开(公告)日：2005-02-03
申请号：US10902028
申请日：2004-07-30
申请人： Kenji Hiraku , Kunihiko Takao , Hironori Kaji , Masahito Ito
发明人： Kenji Hiraku , Kunihiko Takao , Hironori Kaji , Masahito Ito
IPC分类号： G01N30/32 , B01D15/08 , B01D15/14 , F04B1/02 , F04B11/00 , F04B13/02 , F04B23/06 , F04B53/06
CPC分类号： F04B11/0058 , B01D15/14 , F04B11/0083 , F04B13/02 , F04B53/06 , F04B2205/09 , G01N2030/326
摘要： The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate with high accuracy and in discharging bubbles at startup. At startup, a first plunger feeds solvent at a large flow rate to discharge bubbles in a pump and to fill the solvent into the pump in a short time and in a normal operation, the first plunger is stopped and the second plunger is pushed into a second pressure chamber at a low speed to feed the solvent at a low flow rate. When the second plunger reaches full stroke, the second plunger is pulled back at a high speed and at the same time the first plunger is pushed into a first pressure chamber in synchronization with the pullback of the second plunger to control the flow rate passing a discharge passage to a constant value at all times by a controller. Further, while the second plunger feeds the solvent, the first plunger is slightly pushed into the first pressure chamber to keep pressure in the first pressure chamber at pressure equal to or less than pressure in the second pressure chamber.
摘要翻译： 本发明提供了一种液体色谱泵，其具有以极高的精度稳定地以极低的流量供给液体并在起动时排出气泡的液体色谱。 在启动时，第一柱塞以大流量供给溶剂以排出泵中的气泡并在短时间内和正常操作中将溶剂填充到泵中，使第一柱塞停止，将第二柱塞推入 第二压力室以低速进料以低流量进料溶剂。 当第二柱塞达到全行程时，第二柱塞被高速拉回，同时第一柱塞与第二柱塞的回退同步地被推入第一压力室，以控制通过排放的流量 任何时候都由控制器传递给恒定值。 此外，当第二柱塞进料溶剂时，第一柱塞稍微推入第一压力室，以将第一压力室中的压力保持在第二压力室中等于或小于压力的压力。
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公开(公告)号：US07921696B2
公开(公告)日：2011-04-12
申请号：US12037111
申请日：2008-02-26
申请人： Kunihiko Takao , Hironori Kaji , Masahito Ito
发明人： Kunihiko Takao , Hironori Kaji , Masahito Ito
CPC分类号： G01N30/32 , B01D15/14 , B01D15/166 , F04B11/0058 , F04B11/0083 , F04B13/00 , F04B13/02 , F04B53/06 , G01N2030/326
摘要： This liquid feeding system has the first and second pumps each of which is provided with a plunger. Liquid sucked through each of the pump suction ports is discharged out of the discharging port through the first pump and/or second pump. Under the starting operation mode, the second pump is stopped and only the first pump is operated. When the discharging pressure at the discharging port reaches up to a predetermined value, the starting operation mode is changed over to the normal operation mode. Under the normal operation mode, the first pump is stopped and only the second pump is operated.
摘要翻译： 该液体供给系统具有第一和第二泵，每个泵设有柱塞。 通过每个泵吸入口吸入的液体通过第一泵和/或第二泵排出排出口。 在启动运行模式下，第二个泵停止运转，只有第一个泵运转。 当排出口的排出压力达到预定值时，启动操作模式转换到正常操作模式。 在正常运行模式下，第一个泵停止运转，只有第二个泵运转。
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公开(公告)号：US20090269230A1
公开(公告)日：2009-10-29
申请号：US11721983
申请日：2005-12-14
申请人： Norbert Alaze
发明人： Norbert Alaze
IPC分类号： F04B11/00
CPC分类号： F04B11/0008 , F04B11/0083
摘要： A piston pump having at least one piston drivable by a drive unit and is longitudinally movable in a housing and having a first pressure chamber delimited by the piston element and at least one component affixed to the housing. The first pressure chamber is connectable to a suction region via an inlet valve and is operationally connectable to a delivery side via an outlet valve. A compensation piston unit drivable by the drive unit has a working piston chamber connected to the delivery side. A stroke volume of the first pressure chamber is twice the size of a stroke volume of the working piston chamber. The piston element and at least one component affixed to the housing delimit a second pressure chamber which is connected to the suction region which is operationally connected to the first pressure chamber during a suction stroke of the piston element whose volume varies by half the stroke volume of the first pressure chamber as a function of a movement of the piston element and whose volume expands with a delivery stroke of the piston element that decreases the volume of the first pressure chamber.
摘要翻译： 一种活塞泵，具有至少一个由驱动单元驱动的活塞，并且可在壳体中纵向移动并具有由活塞元件限定的第一压力室和固定到壳体的至少一个部件。 第一压力室可通过入口阀连接到吸入区域，并且可操作地通过出口阀连接到输送侧。 由驱动单元驱动的补偿活塞单元具有连接到输送侧的工作活塞室。 第一压力室的行程体积是工作活塞室的行程体积的两倍。 活塞元件和固定到壳体的至少一个部件限定了第二压力室，该第二压力室连接到吸入区域，吸入区域在活塞元件的吸入冲程期间可操作地连接到第一压力室， 第一压力室作为活塞元件的运动的函数，并且其体积随活塞元件的输送行程而膨胀，这减小了第一压力室的体积。
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公开(公告)号：US4887870A
公开(公告)日：1989-12-19
申请号：US182596
申请日：1988-04-18
申请人： Heinz Siegel
发明人： Heinz Siegel
CPC分类号： F04B11/0033 , B60T17/02 , B60T8/4031 , F04B11/0083
摘要： A feed pump, preferably for anti-skid brake systems, having at least one shaft-driven pump piston and at least one compensation element. Some of the brake fluid fed by the pump piston into the brake system during the compression stroke is received in a compensation chamber of the compensation element. During the ensuing intake stroke of the pump piston, an eccentric shaft that also actuates the pump piston actuates a compensation piston of the compensation element, in order to feed the brake fluid that has been temporarily stored in the compensation chamber into the brake system.
摘要翻译： 一种优选用于防滑制动系统的进料泵，其具有至少一个轴驱动泵活塞和至少一个补偿元件。 在压缩冲程期间由泵活塞供给到制动系统中的一些制动流体被接收在补偿元件的补偿室中。 在随后的泵活塞的进气行程期间，也致动泵活塞的偏心轴致动补偿元件的补偿活塞，以便将临时存储在补偿室中的制动流体输送到制动系统中。
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公开(公告)号：US4509903A
公开(公告)日：1985-04-09
申请号：US543089
申请日：1983-10-18
申请人： Jerry R. Fram
发明人： Jerry R. Fram
CPC分类号： F04B19/027 , F04B11/0083 , Y10T74/18944 , Y10T74/18992
摘要： The novel slave pump having a piston rod having a fluid passage through which catalyst is discharged for ultimate use. The slave pump also has an exterior casing which holds it together without contacting the catalyst or other fluids being pumped.A novel combination of a slave pump as just described driven by a master pump having a cylinder and a piston rod, a slave pump having a cylinder and a piston rod, a first means interconnecting the piston rod of the master pump with the piston rod of the slave pump, and a second means connecting the cylinder of the master pump with the cylinder of the slave pump.The position of the slave pump can be adjusted with respect to the master pump to change the amount of catalyst or other fluid delivered by said slave pump per stroke of the slave pump piston. The interconnecting linkages are provided with spherical connections to mitigate wear and binding due to misalignment.
摘要翻译： 新型从动泵具有活塞杆，该活塞杆具有流体通道，通过该活塞杆排出催化剂以最终使用。 从动泵还具有将壳体保持在一起而不与催化剂或被泵送的其它流体接触的外部壳体。 刚刚描述的由具有气缸和活塞杆的主泵驱动的从动泵的新颖组合，具有气缸和活塞杆的从动泵，将主泵的活塞杆与活塞杆相互连接的第一装置 从动泵，以及将主泵的气缸与从动泵的气缸连接的第二装置。 可以相对于主泵来调节从动泵的位置，以改变从动泵活塞每冲程由所述从动泵输送的催化剂或其它流体的量。 互连连接件具有球形连接以减轻由于不对准引起的磨损和结合。
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公开(公告)号：US07350401B2
公开(公告)日：2008-04-01
申请号：US11171216
申请日：2005-07-01
申请人： Kunihiko Takao , Hironori Kaji , Masahito Ito
发明人： Kunihiko Takao , Hironori Kaji , Masahito Ito
IPC分类号： G01N30/00
CPC分类号： G01N30/32 , B01D15/14 , B01D15/166 , F04B11/0058 , F04B11/0083 , F04B13/00 , F04B13/02 , F04B53/06 , G01N2030/326
摘要： This liquid feeding system has the first and second pumps each of which is provided with a plunger. Liquid sucked through each of the pump suction ports is discharged out of the discharging port through the first pump and/or second pump. Under the starting operation mode, the second pump is stopped and only the first pump is operated. When the discharging pressure at the discharging port reaches up to a predetermined value, the starting operation mode is changed over to the normal operation mode. Under the normal operation mode, the first pump is stopped and only the second pump is operated.
摘要翻译： 该液体供给系统具有第一和第二泵，每个泵设有柱塞。 通过每个泵吸入口吸入的液体通过第一泵和/或第二泵排出排出口。 在启动运行模式下，第二个泵停止运转，只有第一个泵运转。 当排出口的排出压力达到预定值时，启动操作模式转换到正常操作模式。 在正常运行模式下，第一个泵停止运转，只有第二个泵运转。
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公开(公告)号：US07063513B2
公开(公告)日：2006-06-20
申请号：US10998937
申请日：2004-11-30
申请人： Kenji Hiraku , Kunihiko Takao , Hironori Kaji , Masahito Ito
发明人： Kenji Hiraku , Kunihiko Takao , Hironori Kaji , Masahito Ito
IPC分类号： F04B3/00
CPC分类号： F04B13/00 , F04B11/0083 , F04B49/06 , F04B2205/04 , G01N30/34 , G01N30/36
摘要： In a pump for feeding a liquid for chromatography, first and second plungers form first and second volumes respectively together with first and second chambers, the first plunger is prevented from changing the first volume sufficiently for feeding the liquid between the first and second volumes when the second plunger decreases the second volume to discharge the fluid from the second volume to an outlet path of the pump for the chromatography.
摘要翻译： 在用于进料用于色谱的液体的泵中，第一和第二柱塞分别与第一和第二腔室一起形成第一和第二容积，防止第一柱塞改变第一体积以便在第一和第二容积之间供给液体时， 第二柱塞减小第二体积以将流体从用于色谱的泵的第二体积排出到出口路径。
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公开(公告)号：US07037081B2
公开(公告)日：2006-05-02
申请号：US10763097
申请日：2004-01-22
IPC分类号： F04B49/20
CPC分类号： F04B1/02 , F04B11/0058 , F04B11/0083 , F04B49/065 , F04B2203/0209 , F04B2205/05 , F04B2205/09 , G01N30/36 , G01N2030/326
摘要： Pumping requirements for chromatograph applications are for constant flow at high and variable pressures and for accurate programmable control of liquid composition. A two-cylinder pump, pumping system, and associated controls provide an accurate, fixed flow rate. A low pressure gradient former controls composition. During the initial portion of the pumping stroke of a first piston in which fluid is being compressed due to its finite bulk modulus of elasticity its check valve remains closed, a second piston provides all the flow required at a fixed rotational speed. Then, once the first piston has reached its bottom dead center, the control system switches to a constant-pressure control mode, thereby maintaining the flow rate at a fixed value. Constant-pressure control is again switched off either when the second piston's discharge check valve closes, or when the second piston's inlet check valve opens, and pump control returns to fixed rotational speed. Determining the angular displacement at which to effect these control-mode switches is carried out by monitoring the discharge pressure and storing the values of the angular displacement at which the first temporal derivative of pressure changes rapidly. The invention provides novel arrangement for synchronizing the gradient generator by equating recompression volume to recompression volume of the high pressure pump.
摘要翻译： 色谱仪应用的泵送要求是在高压和可变压力下恒定流量，并可精确控制液体组成。 双缸泵，泵系统和相关控制提供精确的固定流量。 低压梯度成形器控制组成。 在第一活塞的泵送冲程的初始部分期间，其中流体由于其有限的体积弹性模量而被压缩，其止回阀保持关闭，第二活塞提供固定转速所需的所有流量。 然后，一旦第一活塞达到其下止点，则控制系统切换到恒压控制模式，从而将流量维持在固定值。 当第二活塞的排放止回阀关闭时，或者当第二活塞的入口单向阀打开时，恒压控制再次被关闭，并且泵控制返回固定的转速。 确定实现这些控制模式开关的角位移通过监视排出压力并存储压力的第一时间导数快速变化的角位移的值来进行。 本发明提供了通过将再压缩体积与高压泵的再压缩容积相等来使梯度发生器同步的新颖布置。
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