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公开(公告)号：US07163379B2
公开(公告)日：2007-01-16
申请号：US10504880
申请日：2003-03-17
申请人： Kiyotoshi Mori , Kenichiro Takahashi , Masanori Takaki , Masato Fukuda , Masahito Ito , Hironori Kaji
发明人： Kiyotoshi Mori , Kenichiro Takahashi , Masanori Takaki , Masato Fukuda , Masahito Ito , Hironori Kaji
IPC分类号： F04B41/06
CPC分类号： F04B11/0075 , F04B13/02 , F04B2201/1201 , F04B2201/1208 , F04B2205/05 , G01N30/32 , G01N30/34 , G01N2030/326
摘要： A gradient liquid feed pump system capable of liquid feed in a correct mixing ratio even in the case of liquid feed in which the mixing ratio varies. Specifically, it comprises a first plunger pump for sucking and delivering an eluate, a second the first and second plunger pumps through a cam, a first pressure sensor for measuring the pressure in the flow path of the second plunger pump, a second pressure sensor for measuring the pressure in the fist plunger pump, a cam position detecting sensor for detecting the cam position, wherein when the cam position is in a delivery interval, the rotary speed of the motor is increased, and the period for decreasing the rotary speed is determined on the basis of the difference between the pressure values obtained from the first and second pressure sensors, respectively. Thereby, liquid feed can be smoothly effected with correct mixing ratio while avoiding pressure interference between pumps.
摘要翻译： 即使在混合比变化的液体进料的情况下，也能以正确的混合比液体进料的梯度液体供给泵系统。 具体地，它包括用于吸入和输送洗脱液的第一柱塞泵，通过凸轮的第一和第二柱塞泵，用于测量第二柱塞泵的流动路径中的压力的第一压力传感器，用于测量第二柱塞泵的流路中的压力的第二压力传感器， 测量第一柱塞泵中的压力，用于检测凸轮位置的凸轮位置检测传感器，其中当凸轮位置处于输送间隔时，马达的转速增加，并且确定用于降低转速的周期 基于从第一和第二压力传感器获得的压力值之间的差异。 由此，能够以正确的混合比平稳地进行液体供给，同时避免泵之间的压力干扰。
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公开(公告)号：US20050084386A1
公开(公告)日：2005-04-21
申请号：US10504880
申请日：2003-03-17
申请人： Kiyotoshi Mori , Kenichiro Takahashi , Masanori Takaki , Masato Fukuda , Masahito Ito , Hironori Kaji
发明人： Kiyotoshi Mori , Kenichiro Takahashi , Masanori Takaki , Masato Fukuda , Masahito Ito , Hironori Kaji
CPC分类号： F04B11/0075 , F04B13/02 , F04B2201/1201 , F04B2201/1208 , F04B2205/05 , G01N30/32 , G01N30/34 , G01N2030/326
摘要： A gradient liquid feed pump system capable of liquid feed in a correct mixing ratio even in the case of liquid feed in which the mixing ratio varies. Specifically, it comprises a first plunger pump for sucking and delivering an eluate, a second the first and second plunger pumps through a cam, a first pressure sensor for measuring the pressure in the flow path of the second plunger pump, a second pressure sensor for measuring the pressure in the fist plunger pump, a cam position detecting sensor for detecting the cam position, wherein when the cam position is in a delivery interval, the rotary speed of the motor is increased, and the period for decreasing the rotary speed is determined on the basis of the difference between the pressure values obtained from the first and second pressure sensors, respectively. Thereby, liquid feed can be smoothly effected with correct mixing ratio while avoiding pressure interference between pumps.
摘要翻译： 即使在混合比变化的液体进料的情况下，也能以正确的混合比液体进料的梯度液体供给泵系统。 具体地，它包括用于吸入和输送洗脱液的第一柱塞泵，通过凸轮的第一和第二柱塞泵，用于测量第二柱塞泵的流动路径中的压力的第一压力传感器，用于测量第二柱塞泵的流路中的压力的第二压力传感器， 测量第一柱塞泵中的压力，用于检测凸轮位置的凸轮位置检测传感器，其中当凸轮位置处于输送间隔时，马达的转速增加，并且确定用于降低转速的周期 基于从第一和第二压力传感器获得的压力值之间的差异。 由此，能够以正确的混合比平稳地进行液体供给，同时避免泵之间的压力干扰。
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公开(公告)号：US20090218267A1
公开(公告)日：2009-09-03
申请号：US12392117
申请日：2009-02-25
申请人： Kiyotoshi MORI , Hironori Kaji , Masahito Ito , Kimihiko Ishii , Tomohiro Shoji , Kousaku Toyosaki
发明人： Kiyotoshi MORI , Hironori Kaji , Masahito Ito , Kimihiko Ishii , Tomohiro Shoji , Kousaku Toyosaki
IPC分类号： B01D15/10
CPC分类号： B01D15/22 , B01J20/28004 , B01J20/28042 , B01J2220/58 , B01J2220/82 , B01J2220/825 , G01N30/6065 , G01N2030/528
摘要： The present invention provides a separation column including a monolithic rod without a resin coating material. The separation column can prevent the monolithic rod from destroying, and a liquid can be delivered at a high pressure into the separation column. The separation column includes the monolithic rod (monolithic silica rod) in a tapered-columnar shape, and a clad with the interior formed in a tapered-columnar shape. The monolithic rod is built into the clad.
摘要翻译： 本发明提供一种分离柱，其包括没有树脂涂层材料的整体棒。 分离柱可以防止单块棒破坏，并且可以将液体以高压输送到分离塔中。 分离柱包括呈锥形的整体式棒（整体式石英棒），内部形成为锥形的包层。 整体式杆被装入包层。
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公开(公告)号：US20070084766A1
公开(公告)日：2007-04-19
申请号：US11582455
申请日：2006-10-18
IPC分类号： B01D35/14
CPC分类号： G01N30/32 , G01N30/34 , G01N2030/322 , G01N2030/326
摘要： A pump device is realized, which accurately detects a flow rate of a pump, performs real-time control of the flow rate, and thus can suppress a flow rate error caused by occurrence of pulsation. Control of a pump rotation speed by a pressure sensor has low responsiveness in a low pressure region, and a correlation between a pressure and a flow rate is incomplete in a high flow rate region. With this taken into consideration, a flow rate sensor 10 is disposed at an outlet port 9 of a second pump 4. A position detection sensor 14 detects a point where a first pump 3 is shifted from a suction mode to a discharge mode. Moreover, the flow rate sensor 10 detects that there is no discharge from the pump 3, and that there is discharge from the pump 4 alone. Accordingly, a controller 15 sets a rotation speed of a motor 12 to a speed double the previous speed (double the normal rotation speed). When the flow rate sensor 10 detects an increase in the flow rate at the outlet port 9 of the second pump 4, the controller 15 returns the rotation speed of the motor 12 to a normal rotation speed. The rotation speed of the motor 12 is controlled by accurate flow rate detection by the flow rate sensor 10. Thus, occurrence of pulsation can be suppressed.
摘要翻译： 实现了能够精确地检测泵的流量的泵装置，实现流量的实时控制，能够抑制由脉动发生引起的流量误差。 通过压力传感器控制泵的转速在低压区域的响应性低，在高流量区域中压力与流量的相关性不完全。 考虑到这一点，流量传感器10设置在第二泵4的出口9处。位置检测传感器14检测第一泵3从吸入模式移动到放电模式的点。 此外，流量传感器10检测到没有来自泵3的排出，并且仅从泵4排出。 因此，控制器15将电动机12的转速设定为与先前速度（正常转速两倍）的速度。 当流量传感器10检测到第二泵4的出口9的流量增加时，控制器15将马达12的转速恢复到正常的转速。 通过流量传感器10的精确的流量检测来控制电动机12的转速。因此，可以抑制脉动的发生。
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公开(公告)号：US08123496B2
公开(公告)日：2012-02-28
申请号：US12845487
申请日：2010-07-28
CPC分类号： G01N30/32 , G01N30/34 , G01N2030/322 , G01N2030/326
摘要： A pump device which accurately detects a flow rate of a pump, performs real-time control of the flow rate, and thus can suppress a flow rate error caused by occurrence of pulsation. Control of a pump rotation speed by a pressure sensor has low responsiveness in a low pressure region, and a correlation between a pressure and a flow rate is incomplete in a high flow rate region. With this taken into consideration, a flow rate sensor is disposed at an outlet port of a second pump. A position detection sensor detects a point where a first pump is shifted from a suction mode to a discharge mode. Moreover, the flow rate sensor detects that there is no discharge from the pump, and that there is discharge from the pump alone. Accordingly, a controller sets a rotation speed of a motor to a speed double the previous speed (double the normal rotation speed). When the flow rate sensor detects an increase in the flow rate at the outlet port of the second pump, the controller returns the rotation speed of the motor to a normal rotation speed. The rotation speed of the motor is controlled by accurate flow rate detection by the flow rate sensor. Thus, occurrence of pulsation can be suppressed.
摘要翻译： 准确地检测泵的流量的泵装置，对流量进行实时控制，能够抑制由脉动发生引起的流量误差。 通过压力传感器控制泵的转速在低压区域的响应性低，在高流量区域中压力与流量的相关性不完全。 考虑到这一点，流量传感器设置在第二泵的出口处。 位置检测传感器检测第一泵从吸入模式移动到排出模式的点。 此外，流量传感器检测到没有来自泵的放电，并且仅从泵排出。 因此，控制器将电动机的转速设定为与先前速度相同的速度（正常转速的两倍）。 当流量传感器检测到第二泵的出口处的流量增加时，控制器将马达的转速恢复到正常的转速。 通过流量传感器的精确流量检测来控制电动机的转速。 因此，可以抑制脉动的发生。
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公开(公告)号：US20100288027A1
公开(公告)日：2010-11-18
申请号：US12845487
申请日：2010-07-28
IPC分类号： G01N30/00 , B01D35/157
CPC分类号： G01N30/32 , G01N30/34 , G01N2030/322 , G01N2030/326
摘要： A pump device is realized, which accurately detects a flow rate of a pump, performs real-time control of the flow rate, and thus can suppress a flow rate error caused by occurrence of pulsation. Control of a pump rotation speed by a pressure sensor has low responsiveness in a low pressure region, and a correlation between a pressure and a flow rate is incomplete in a high flow rate region. With this taken into consideration, a flow rate sensor 10 is disposed at an outlet port 9 of a second pump 4. A position detection sensor 14 detects a point where a first pump 3 is shifted from a suction mode to a discharge mode. Moreover, the flow rate sensor 10 detects that there is no discharge from the pump 3, and that there is discharge from the pump 4 alone. Accordingly, a controller 15 sets a rotation speed of a motor 12 to a speed double the previous speed (double the normal rotation speed). When the flow rate sensor 10 detects an increase in the flow rate at the outlet port 9 of the second pump 4, the controller 15 returns the rotation speed of the motor 12 to a normal rotation speed. The rotation speed of the motor 12 is controlled by accurate flow rate detection by the flow rate sensor 10. Thus, occurrence of pulsation can be suppressed.
摘要翻译： 实现了能够精确地检测泵的流量的泵装置，实现流量的实时控制，能够抑制由脉动发生引起的流量误差。 通过压力传感器控制泵的转速在低压区域的响应性低，在高流量区域中压力与流量的相关性不完全。 考虑到这一点，流量传感器10设置在第二泵4的出口9处。位置检测传感器14检测第一泵3从吸入模式移动到放电模式的点。 此外，流量传感器10检测到没有来自泵3的排出，并且仅从泵4排出。 因此，控制器15将电动机12的转速设定为与先前速度（正常转速两倍）的速度。 当流量传感器10检测到第二泵4的出口9处的流量增加时，控制器15将马达12的转速恢复到正常的转速。 通过流量传感器10的精确的流量检测来控制电动机12的转速。因此，可以抑制脉动的发生。
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公开(公告)号：US20090090173A1
公开(公告)日：2009-04-09
申请号：US12244846
申请日：2008-10-03
申请人： Masato Fukuda , Hiroyuki Wada , Masahito Ito , Hironori Kaji , Kosaku Toyosaki
发明人： Masato Fukuda , Hiroyuki Wada , Masahito Ito , Hironori Kaji , Kosaku Toyosaki
IPC分类号： G01N30/04
CPC分类号： G01N30/34
摘要： An object of the present invention is to improve the accuracy in analysis repeatability of a liquid chromatography apparatus that feeds different eluent by use of a plurality of pumps and achieves the mixture of eluent.Each of the pumps includes means for notifying an automatic sampler and a higher-level control unit that the specified timing of a liquid feeding cycle is reached. A pump whose liquid feeding cycle is the slowest transmits own information so that analysis is synchronized with a liquid feeding cycle. Moreover, a cycle position of a liquid feeding cycle at the end of analysis is expected, and the analysis time is automatically adjusted so that the wait time until the start of the next analysis becomes the shortest.
摘要翻译： 本发明的目的是提高通过使用多个泵进料不同洗脱液的液相色谱仪的分析重复性的准确性，并实现洗脱液的混合。 每个泵包括用于通知自动取样器和上位控制单元的装置，以达到给定循环的指定时间。 送液周期最慢的泵传送自己的信息，使分析与液体供给循环同步。 此外，期望在分析结束时的送液循环的循环位置，并且自动调整分析时间，使得直到下一次分析开始的等待时间变得最短。
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公开(公告)号：US08375772B2
公开(公告)日：2013-02-19
申请号：US12244846
申请日：2008-10-03
申请人： Masato Fukuda , Hiroyuki Wada , Masahito Ito , Hironori Kaji , Kosaku Toyosaki
发明人： Masato Fukuda , Hiroyuki Wada , Masahito Ito , Hironori Kaji , Kosaku Toyosaki
IPC分类号： G01N30/04
CPC分类号： G01N30/34
摘要： An object of the present invention is to improve the accuracy in analysis repeatability of a liquid chromatography apparatus that feeds different eluent by use of a plurality of pumps and achieves the mixture of eluent.Each of the pumps includes means for notifying an automatic sampler and a higher-level control unit that the specified timing of a liquid feeding cycle is reached. A pump whose liquid feeding cycle is the slowest transmits own information so that analysis is synchronized with a liquid feeding cycle. Moreover, a cycle position of a liquid feeding cycle at the end of analysis is expected, and the analysis time is automatically adjusted so that the wait time until the start of the next analysis becomes the shortest.
摘要翻译： 本发明的目的是提高通过使用多个泵进料不同洗脱液的液相色谱仪的分析重复性的准确性，并实现洗脱液的混合。 每个泵包括用于通知自动取样器和上位控制单元的装置，以达到给定循环的指定时间。 送液周期最慢的泵传送自己的信息，使分析与液体供给循环同步。 此外，期望在分析结束时的送液循环的循环位置，并且自动调整分析时间，使得直到下一次分析开始的等待时间变得最短。
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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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10.发明申请LIQUID CHROMATOGRAPH, LIQUID CHROMATOGRAPH COLUMN AND FILTER FOR LIQUID CHROMATOGRAPH COLUMN 有权液相色谱，液相色谱柱和液相色谱柱过滤器公开(公告)号：US20110303599A1
公开(公告)日：2011-12-15
申请号：US13202722
申请日：2010-03-10
CPC分类号： G01N30/603
摘要： In a liquid chromatograph, the disulfide adsorption of iron atoms in a filter for a column is avoided and thus peak tailing in a chromatogram is prevented to thereby prevent a lowering in the sample recovery rate. A liquid chromatograph column comprising a hollow tubular column body, a bead-shaped packing material which is packed in the hollow part of the column body, a filter provided with a mesh which has a mesh size smaller than the particle diameter of the packing material, and a cap which presses the filter against the packing material to thereby enclose the packing material within the column body, characterized in that the main component of the filter is nickel or hastelloy.
摘要翻译： 在液相色谱仪中，避免了用于柱的过滤器中的铁原子的二硫键吸附，因此防止了色谱图中的峰值拖尾，从而防止了样品回收率的降低。 一种液相色谱柱，包括中空管状柱体，填充在柱体中空部分中的珠状包装材料，具有筛网尺寸小于包装材料粒径的筛网的过滤器， 以及将过滤器压靠在包装材料上的盖子，从而将包装材料包围在柱体内，其特征在于，过滤器的主要部件是镍或哈氏合金。
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