公开(公告)号：US06725837B2

公开(公告)日：2004-04-27

申请号：US10056081

申请日：2002-01-28

申请人： Kenji Hiraku ,  Kenichiro Tokuo ,  Tadahiko Nogami ,  Kunihiko Takao ,  Hiroyuki Yamada

发明人： Kenji Hiraku ,  Kenichiro Tokuo ,  Tadahiko Nogami ,  Kunihiko Takao ,  Hiroyuki Yamada

IPC分类号： F02M700

CPC分类号： F02D41/3836 ,  F02D41/3809 ,  F02D41/40 ,  F02M59/366 ,  F02M63/0225 ,  F04B49/243 ,  Y02T10/44

摘要： The unevenness of injection rates of cylinders is reduced in a fuel supply system of a direct injection engine which uses a variable-displacement single plunger pump. The unevenness of injection rates of cylinders can be reduced by effecting a control such that the cam 100, which drives the high-pressure fuel pump 101, makes one reciprocation, while the engine makes explosions in two cylinders, and by causing the controller 55 to extend the injection time width of one of two injectors 54 which inject during one discharge of the high-pressure fuel pump and to shorten the injection time width of the other injector.

摘要翻译： 在使用可变排量单柱塞泵的直喷式发动机的燃料供给系统中，气缸的喷射率的不均匀性降低。 通过进行这样的控制，可以减少气缸的喷射速度的不均匀性，使得驱动高压燃料泵101的凸轮100进行一次往复运动，同时发动机在两个气缸中发生爆炸，并且通过使控制器55 延长在高压燃料泵的一次排放期间喷射的两个喷射器54之一的喷射时间宽度，并缩短另一喷射器的喷射时间宽度。

公开(公告)号：US06505608B2

公开(公告)日：2003-01-14

申请号：US09812082

申请日：2001-03-20

申请人： Kenji Hiraku ,  Kenichiro Tokuo ,  Tadahiko Nogami ,  Kunihiko Takao ,  Hiroyuki Yamada ,  Yukio Takahashi ,  Atsuji Saito

发明人： Kenji Hiraku ,  Kenichiro Tokuo ,  Tadahiko Nogami ,  Kunihiko Takao ,  Hiroyuki Yamada ,  Yukio Takahashi ,  Atsuji Saito

IPC分类号： F02M3704

CPC分类号： F02D41/3845 ,  F02D2041/3881 ,  F02D2041/389 ,  F02D2200/0602 ,  F02D2250/14 ,  F02D2250/31 ,  F02M55/025 ,  F02M59/367 ,  F02M63/0295 ,  F02M69/465 ,  F02M2200/04 ,  F02M2200/31 ,  F04B49/243

摘要： A fuel supply system for a direct injection engine which has a variable capacity single cylinder plunger pump and two fuel rails. Offices are disposed at the upstream side inlets of both fuel rails, respectively. At the opposite sides to the inlet sides, the fuel rails are interconnected with each other by a connecting pipe. Using this fuel supply system, it is possible to increase a characterisitic frquency of the fuel columns, and to stabilize, suppress, and smooth out pressure pulsation in the fuel rails, thereby reducing uneven fuel injections into the cylinders. The system may have a cam which drives a plunger of a high pressure fuel pump to reciprocate once for every two combustions in two engine cylinders.

摘要翻译： 一种用于直喷发动机的燃料供应系统，其具有可变容量的单缸柱塞泵和两个燃料轨。 分别设置在两个燃料导轨的上游侧入口处。 在入口侧的相对侧，燃料导轨通过连接管相互连接。 利用这种燃料供给系统，能够提高燃料柱的特性，并且稳定化，抑制和平滑燃料轨中的压力脉动，从而减少对气缸的不均匀燃料喷射。 该系统可以具有驱动高压燃料泵的柱塞的凸轮，以在两个发动机气缸中的每两次燃烧中往复运动一次。

公开(公告)号：US06701898B2

公开(公告)日：2004-03-09

申请号：US09930945

申请日：2001-08-17

申请人： Kenichiro Tokuo ,  Kenji Hiraku ,  Tadahiko Nogami ,  Kunihiko Takao ,  Hiroyuki Yamada

发明人： Kenichiro Tokuo ,  Kenji Hiraku ,  Tadahiko Nogami ,  Kunihiko Takao ,  Hiroyuki Yamada

IPC分类号： F02M3704

CPC分类号： F02D41/3845 ,  F02D41/38 ,  F02D41/3809 ,  F02D2200/0602 ,  F02M45/06 ,  F02M59/102 ,  F02M59/366 ,  F02M59/367 ,  F02M63/0031 ,  F02M63/0225 ,  F02M63/024 ,  F02M63/028 ,  F04B49/243

摘要： In a fuel supply apparatus disclosed, a variable displacement mechanism is driven once every two or more reciprocating motions of the plunger of a high-pressure fuel pump to control the delivery flow rate, so that the delivery flow rate control can be performed without having to raise the responsiveness of the variable displacement mechanism even when the reciprocating cycle of the plunger is short.

摘要翻译： 在公开的燃料供给装置中，通过高压燃料泵的柱塞的两次以上的往复运动来驱动可变排量机构一次，以控制输送流量，从而可以执行输送流量控制，而不必 即使当柱塞的往复循环短时，也提高了可变排量机构的响应性。

公开(公告)号：US06651630B2

公开(公告)日：2003-11-25

申请号：US10247302

申请日：2002-09-20

申请人： Kenji Hiraku ,  Kenichiro Tokuo ,  Yuzo Kadomukai ,  Kunihiko Takao ,  Hiroyuki Yamada

发明人： Kenji Hiraku ,  Kenichiro Tokuo ,  Yuzo Kadomukai ,  Kunihiko Takao ,  Hiroyuki Yamada

IPC分类号： F02M3704

CPC分类号： F02M59/468 ,  F02M59/368 ,  F02M63/0225 ,  F02M2200/21 ,  F02M2200/703 ,  F02M2200/707 ,  F04B49/243

摘要： In order to provide a method for high volume and high pressure operation of a variable delivery type single cylinder plunger pump, the displacement of the piezoelectric element 20 is magnified by a hydraulic displacement magnifying mechanism comprising a large-diameter bellows 204, a small diameter bellows 202 and working fluid 208, and an engaging member 201 is displaced to control the time interval of opening and closing the intake valve 5. The large-diameter bellows 204 is used at all times in the state compressed in the direction of displacement transfer, thereby ensuring that the pressure of the working fluid 208 is maintained at a positive value to prevent vapor from being generated. The thermal expansion of a casing 23 is selected in such a way that the total thermal expansion of the piezoelectric element 200 and hydraulic displacement magnifying mechanism in the direction of displacement transfer is approximately the same as the thermal expansion of the casing 23, whereby highly efficient driving is provided.

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。

公开(公告)号：US06923916B1

公开(公告)日：2005-08-02

申请号：US10608072

申请日：2003-06-30

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 ,  F04B11/00 ,  F04B13/00 ,  F04B49/06 ,  G01N30/34 ,  B01D15/08

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。

公开(公告)号：US20120128533A1

公开(公告)日：2012-05-24

申请号：US13386789

申请日：2010-05-26

申请人： Kisaburo Deguchi ,  Hironori Kaji ,  Kimihiko Ishii ,  Daisuke Akieda ,  Kunihiko Takao ,  Masaru Yamasaki ,  Kenji Hiraku ,  Yoshihiro Nagaoka

发明人： Kisaburo Deguchi ,  Hironori Kaji ,  Kimihiko Ishii ,  Daisuke Akieda ,  Kunihiko Takao ,  Masaru Yamasaki ,  Kenji Hiraku ,  Yoshihiro Nagaoka

IPC分类号： G01N31/00 ,  F16K15/00

CPC分类号： F04B23/06 ,  F04B13/00 ,  F04B49/08 ,  F04B49/22 ,  F04B2205/05 ,  F16K15/04 ,  F16K37/0058 ,  G01N30/32 ,  G01N30/74 ,  G01N2030/328 ,  G01N2030/8435 ,  Y10T137/7838

摘要： It is possible to correctly determine whether a change in the pressure or flow rate is caused by normal opening and closing operations of a check valve and to monitor in real time whether an operation of a check valve is normal or abnormal in a liquid supply device. Light is introduced in the check valve and a change in the quantity of light transmitted through or reflected by the check valve, caused by the opening and closing of the valve is detected, so that the opening and closing operations of the check valve can be directly detected. The check valve is arranged in a pipe in the liquid supply device, and a change in the pressure in the pipe is monitored on the basis of a signal from a pressure sensor and a signal which represents the opening and closing of the check valve.

摘要翻译： 可以正确地确定压力或流量的变化是否由止回阀的正常的打开和关闭操作引起，并且实时监测液体供应装置中止回阀的操作是否正常或异常。 在止回阀中引入光，并且检测到由阀的打开和关闭引起的止回阀透过或反射的光量的变化，使得止回阀的打开和关闭操作可以直接 检测到。 止回阀布置在液体供应装置中的管道中，并且基于来自压力传感器的信号和表示止回阀的打开和关闭的信号来监测管道中的压力变化。

公开(公告)号：US07063785B2

公开(公告)日：2006-06-20

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： B01D15/08

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，使第一柱塞停止并将第二柱塞推入 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。

公开(公告)号：US20050095145A1

公开(公告)日：2005-05-05

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： G01N30/32 ,  F04B11/00 ,  F04B13/00 ,  F04B49/06 ,  G01N30/34 ,  F04B49/00 ,  F04B5/00

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.

公开(公告)号：US08551423B2

公开(公告)日：2013-10-08

申请号：US13386789

申请日：2010-05-26

申请人： Kisaburo Deguchi ,  Hironori Kaji ,  Kimihiko Ishii ,  Daisuke Akieda ,  Kunihiko Takao ,  Masaru Yamasaki ,  Kenji Hiraku ,  Yoshihiro Nagaoka

发明人： Kisaburo Deguchi ,  Hironori Kaji ,  Kimihiko Ishii ,  Daisuke Akieda ,  Kunihiko Takao ,  Masaru Yamasaki ,  Kenji Hiraku ,  Yoshihiro Nagaoka

IPC分类号： B01L3/02

CPC分类号： F04B23/06 ,  F04B13/00 ,  F04B49/08 ,  F04B49/22 ,  F04B2205/05 ,  F16K15/04 ,  F16K37/0058 ,  G01N30/32 ,  G01N30/74 ,  G01N2030/328 ,  G01N2030/8435 ,  Y10T137/7838

摘要： It is possible to correctly determine whether a change in the pressure or flow rate is caused by normal opening and closing operations of a check valve and to monitor in real time whether an operation of a check valve is normal or abnormal in a liquid supply device. Light is introduced in the check valve and a change in the quantity of light transmitted through or reflected by the check valve, caused by the opening and closing of the valve is detected, so that the opening and closing operations of the check valve can be directly detected. The check valve is arranged in a pipe in the liquid supply device, and a change in the pressure in the pipe is monitored on the basis of a signal from a pressure sensor and a signal which represents the opening and closing of the check valve.

摘要翻译： 可以正确地确定压力或流量的变化是否由止回阀的正常的打开和关闭操作引起，并且实时监测液体供应装置中止回阀的操作是否正常或异常。 在止回阀中引入光，并且检测到由阀的打开和关闭引起的止回阀透过或反射的光量的变化，使得止回阀的打开和关闭操作可以直接 检测到。 止回阀布置在液体供应装置中的管道中，并且基于来自压力传感器的信号和表示止回阀的打开和关闭的信号来监测管道中的压力变化。